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WO2014203800A1 - Lens module, camera module, and method for manufacturing camera module - Google Patents

Lens module, camera module, and method for manufacturing camera module Download PDF

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Publication number
WO2014203800A1
WO2014203800A1 PCT/JP2014/065591 JP2014065591W WO2014203800A1 WO 2014203800 A1 WO2014203800 A1 WO 2014203800A1 JP 2014065591 W JP2014065591 W JP 2014065591W WO 2014203800 A1 WO2014203800 A1 WO 2014203800A1
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WO
WIPO (PCT)
Prior art keywords
lens
sandwiched
lens module
axis
concave
Prior art date
Application number
PCT/JP2014/065591
Other languages
French (fr)
Japanese (ja)
Inventor
健一 武中
Original Assignee
コニカミノルタ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by コニカミノルタ株式会社 filed Critical コニカミノルタ株式会社
Publication of WO2014203800A1 publication Critical patent/WO2014203800A1/en

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0037—Arrays characterized by the distribution or form of lenses
    • G02B3/0056—Arrays characterized by the distribution or form of lenses arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0037—Arrays characterized by the distribution or form of lenses
    • G02B3/0062—Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between
    • G02B3/0068—Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between arranged in a single integral body or plate, e.g. laminates or hybrid structures with other optical elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices

Definitions

  • the present invention relates to a lens module, a camera module, and a method for manufacturing the camera module.
  • Patent Document 1 discloses a camera module production method.
  • the lens barrel is held in the assembling apparatus by adsorbing the upper surface of the cylindrical lens barrel holding the lens to the assembling apparatus.
  • the positions of the lens and the image sensor are adjusted.
  • the Z-axis direction parallel to the optical axis of the lens, the X-axis direction and the Y-axis direction orthogonal to each other in a plane orthogonal to the optical axis, the rotation angle around the Z-axis, and the rotation around the X-axis The rotation angle and the rotation angle around the Y axis are adjusted.
  • a lens and an image pick-up element are fixed with an adhesive agent.
  • the camera module production method disclosed in Patent Document 1 has a lens barrel attached to the assembling apparatus.
  • Patent Document 2 discloses an imaging module in which a thin flat array lens provided with a plurality of small lenses is directly fixed to an imaging element without using a lens barrel.
  • the upper surface has a small area on the upper surface in order to secure an optical path.
  • the side surface of the array lens is held, it is a thin flat plate structure, so that if the side surface is held strongly, it is distorted.
  • the sandwiching portion sandwiches the surfaces, so that the array lens easily slides with respect to the sandwiching portion. Therefore, it is necessary to clamp the both side surfaces of the array lens with a large force at the clamping portion.
  • the array lens since the array lens is easily distorted, it may be distorted when sandwiched with a large force.
  • the present invention has been made in view of the above-described circumstances, and an object thereof is a lens module that can be easily and accurately aligned and assembled without distorting one or a plurality of array lenses (lens units). And a camera module and a method of manufacturing the camera module.
  • the lens module and the camera module according to the present invention each include a sandwiched portion that is sandwiched by the assembly device when assembled using the assembly device on both opposing side surfaces, and at least one of the sandwiched portions.
  • One has a concave sandwiched portion.
  • the manufacturing method of the camera module concerning this invention grasps an image sensor with an assembling apparatus, and makes the concave sandwiched part of the above-mentioned sandwiched part on the imaging surface side of the above-mentioned image sensor the convex shape of the above assembling apparatus. Clamp at the clamping part. Therefore, the lens module, the camera module, and the manufacturing method of the camera module according to the present invention can be easily and accurately aligned and assembled without distortion of the lens unit.
  • FIG. 2 is a cross-sectional view of the camera module taken along line II-II shown in FIG. 1A. It is explanatory drawing of the lens unit used for the said camera module. It is explanatory drawing at the time of assembling
  • FIG. 1 is an explanatory diagram of a camera module having the lens module of the first embodiment.
  • 1A is a plan view of the camera module
  • FIG. 1B is a left side view of the camera module
  • FIG. 1C is a right side view of the camera module.
  • FIG. 2 is a cross-sectional view of the camera module taken along line II-II shown in FIG. 1A.
  • FIG. 3 is an explanatory diagram of a lens unit used in the camera module.
  • 3A is a plan view of the lens unit
  • FIG. 3B is a left side view of the lens unit
  • FIG. 3C is a right side view of the lens unit.
  • the camera module 1 of the present embodiment includes a lens module 2 and an image sensor 3 assembled to the lens module 2.
  • the lens module 2 includes a lens unit 4 and a synthetic resin lens holder 5 holding the lens unit 4.
  • the lens unit 4 includes one or more rectangular array lenses 41.
  • the lens unit 4 includes two array lenses 41 as shown in FIG.
  • Each array lens 41 includes a plurality of small lenses (single eyes) 41a arranged in an array.
  • the array lens 41 includes a plurality of (4 in FIG. 1A) arrayed in a two-dimensional array in two linearly independent directions, in the example of FIG. 1A, in two directions orthogonal to each other. 16 small lenses 41a in 4 rows and 4 columns).
  • Each imaging optical system configured by a lens unit and arranged in an array may be configured by a single small lens, or may be configured by a plurality of small lenses arranged in order along the optical axis direction. Also good.
  • each small lens 41a is composed of two single-lens lenses. ing.
  • the lens unit 4 includes a light shielding structure 41b that prevents each light received by each small lens 41a from leaking to the adjacent small lens 41a.
  • the lens unit 4 includes a first inclined concave portion 42 for a lens formed in a concave shape on the left side surface (lower side surface in the drawing), and a first lens-shaped concave portion 42 formed in a concave shape on the right side surface. 2 inclined recesses 43.
  • the first inclined concave portion for lens 42 and the second inclined concave portion for lens 43 are formed in a bilaterally symmetric shape. Therefore, the first inclined concave portion for lens 42 will be described below, and the second inclined portion for lens will be described. A description of the inclined recess 43 is omitted.
  • the first inclined concave portion for lens 42 includes a first inclined surface 42a and a second inclined surface 42b facing the first inclined surface 42a. These inclined surfaces 42a and 42b are located between two adjacent small lenses 41a in the central portion on the left side surface from the upper surface of the figure serving as the object-side surface of the lens unit 4 to the lower surface of the diagram serving as the image-side surface. In addition, the distance from each other is gradually reduced as the depth from the left side increases.
  • the first inclined surface 42a and the second inclined surface 42b are formed so as to be bilaterally symmetrical on the paper surface with respect to the vertical center line of the lens unit 4, whereby the first inclined concave portion 42 for the lens is It is formed in a shape recessed in a V shape from the left side surface in plan view.
  • the lens holder 5 includes a top 51 and a side 52 as shown in FIGS.
  • the top 51 is disposed so as to cover the entire periphery of the peripheral edge of the upper surface (object-side surface) of the lens unit 4.
  • the side portion 52 has a rectangular cylindrical shape, and includes left and right side surfaces provided with recessed sandwiched portions (sandwiched portions) 53 and 54 that are sandwiched by an assembly device 100 described later.
  • the concave sandwiched portion of this embodiment includes a holder-like inclined recess 53 formed to be recessed on the left side surface of the side portion 52, and a weight-like recess formed to be recessed on the right side surface of the side portion 52. 54.
  • the holder inclined concave portion 53 is configured such that a part of the left side surface of the side portion 52 protrudes inward from the outer surface to the inner surface so that the holder can be fitted into the first inclined concave portion 42 for lens. Is formed.
  • the inclined concave portion for holder 53 of this embodiment is formed in a similar shape to the first inclined concave portion for lens.
  • the holder inclined concave portion 53 includes a first inclined surface 53a and a second inclined surface 53b facing the first inclined surface 53a. These inclined surfaces 53a and 53b are formed such that the distance from each other decreases as the depth from the left side surface of the lens holder 5 increases.
  • the first inclined surface 53a and the second inclined surface 53b are formed so as to be symmetric with respect to the vertical center line 53c in a plan view, whereby the holder inclined concave portion 53 is formed on the left side surface in a plan view.
  • the spindle-shaped recess 54 is formed in a shape having a spindle part 54a that gradually decreases in width as the depth from the right side surface of the side part 52 increases.
  • the weight-like concave portion 54 is formed in a conical shape in which the axial center 54b extends along the vertical center line 53c in plan view.
  • the weight-like concave portion 54 of this embodiment is formed so that a part of the right side surface of the side portion 52 protrudes inward from the outer surface to the inner surface so that it can enter the second inclined concave portion 43 for lenses. ing.
  • the side portion 52 thus configured has the holder inclined concave portion 53 at the position of the lens first inclined concave portion 42 and the weight-like concave portion 54 at the position of the lens second inclined concave portion 43, respectively.
  • the lens unit 4 is disposed on the outer periphery so as to be aligned. In this state, the side portion 52 and the lens unit 4 are fixedly attached.
  • the imaging device 3 includes a plurality of photoelectric conversion elements, and R (red) and G (green) of each optical image of an object (subject) formed by each small lens 41a of the array lens 41 according to each light amount.
  • B (blue) is an element that performs photoelectric conversion on the image signals of the respective components and outputs them to an image processing circuit (not shown) that performs predetermined image processing.
  • the imaging element 3 includes a rectangular package and an imaging surface 31 disposed on the front side of the package.
  • the imaging element 3 is, for example, a CCD type image sensor, a CMOS type image sensor, or the like.
  • the imaging device 3 configured as described above is disposed on the lower side (image side) of FIG. 2 of the lens module 2 with the imaging surface 31 facing the array lens 41 side (object side). Then, the mutual position (attitude) of the array lens 41 and the imaging surface 31 of the imaging device 3 is adjusted, and the imaging device 3 is, for example, an energy curable adhesive such as an ultraviolet curable adhesive in the adjusted position.
  • the lens module 2 is fixedly assembled by an adhesive 7 such as an agent.
  • FIG. 4 is an explanatory diagram when the lens module and the image sensor are assembled by the assembling apparatus.
  • 4A is a plan view thereof
  • FIG. 4B is a side view thereof
  • FIG. 4C is an enlarged perspective view of an essential part thereof.
  • an XYZ orthogonal coordinate system is set in which the vertical direction is the Z axis with respect to a substantially horizontal installation surface on which the assembling apparatus 100 is installed. Therefore, the X axis is set in the left-right direction of the figure orthogonal to the Z axis, and the Y axis is set in the front-rear direction orthogonal to the Z axis and orthogonal to the X axis.
  • the assembling apparatus 100 includes a lens clamping unit 101 that detachably holds the lens module 2 and an imaging device gripping unit 110 that grips the imaging device 3.
  • the lens clamping unit 101 is configured to connect the lens module 2 to the Z axis direction, the X axis direction, the Y axis direction, the rotation angle ⁇ around the Z axis, the rotation angle ⁇ x around the X axis, and the Y axis in the coordinate system.
  • the rotation angle ⁇ y around is clamped while positioning.
  • the lens clamping unit 101 has a first clamping unit (convex clamping unit) 102 disposed so as to be movable in the X-axis direction, and a predetermined distance from the first clamping unit 102 on the right side of the first clamping unit 102. And a second sandwiching portion (convex sandwiching portion) 103 disposed so as to be movable in the X-axis direction.
  • the 1st clamping part 102 is equipped with the cylindrical 1st press part 102a in the front end side.
  • the first pressing portion 102a is disposed such that the axis O1 is along the Z-axis direction.
  • the second clamping part 103 includes a spherical second pressing part 103a on the tip side.
  • the second pressing portion 103a is disposed such that its center O2 is on the same X axis as the axis O1 of the first pressing portion 102a.
  • the image sensor gripping part 110 is disposed below the lens clamping part 101 so as to be capable of detachably gripping the image sensor 3. Then, the image sensor gripping unit 110 is moved by a position adjusting unit (not shown) on the imaging surface 31 of the gripped image sensor 3 in the coordinate system in the Z-axis direction, the X-axis direction, and the Y-axis direction, and around the Z-axis.
  • the rotation angle ⁇ , the rotation angle ⁇ x around the X axis, and the rotation angle ⁇ y around the Y axis can be adjusted.
  • the image sensor 3 is gripped by the image sensor grip portion 110.
  • the lens module 2 is clamped by the lens clamping unit 101 on the imaging surface side of the imaging device. More specifically, the lens module 2 is configured so that the inclined concave portion 53 for the holder of the lens module 2 and the first pressing portion 102a face each other, and the weight-like concave portion 54 and the second pressing portion 103a face each other.
  • the first holding part 102 and the second holding part 103 are arranged between the first holding part 102 and the second holding part 103. From this state, one or both of the first holding part 102 and the second holding part 103 are moved and operated, and the inclined concave portion for the holder is used. 53 and the weight-like recessed part 54 are clamped by both.
  • the V-shaped holder inclined concave portion 53 of the lens module 2 is formed in the cylindrical first pressing portion 102a, and the conical weight-shaped concave portion 54 is formed in the spherical second pressing portion 103a. Since the lens module 2 is pressed and clamped, the optical axis of the lens module 2 is aligned with the Z-axis direction, the Z-axis direction, the X-axis direction, the Y-axis direction, the rotation angle ⁇ around the Z axis, and the rotation angle ⁇ x around the X axis. And the rotation angle ⁇ y around the Y axis is determined and restrained.
  • an adjustment reference chart is arranged on the object side of the lens module 2 opposite to the image pickup device 3, and an optical image (chart image) of the adjustment reference chart is formed on the image pickup device 3 through the small lens 41a.
  • the chart image is photoelectrically converted by the image pickup device 3, the Z-axis direction, the X-axis direction, and the Y-axis direction are observed so that the image is observed on the monitor and an image with high balance and high contrast is obtained.
  • the positions of the rotation angle ⁇ around the Z axis, the rotation angle ⁇ x around the X axis, and the rotation angle ⁇ y around the Y axis are adjusted.
  • the position adjustment operation between the lens module 2 and the image sensor 3 can be easily performed.
  • the adhesive 7 is applied to, for example, the four corners where the image sensor 3 contacts, and is cured by being irradiated with ultraviolet rays.
  • the adhesive 7 contracts to cause a volume change.
  • the lens module 2 is attached to the adhesive 7.
  • the lens module 2 is less likely to slide from the first pressing portion 102a or the second pressing portion 103a even when receiving a force accompanying the volume change. Therefore, the lens module 2 can be securely clamped with a small force, and there is little possibility that the lens module 2 and the image sensor 3 are displaced from each other when the adhesive is cured.
  • FIG. 5 is a plan view of the lens module of the second embodiment.
  • the lens module 2 includes two conical weight-shaped concave portions 454 formed at a distance from each other on one side surface (left side surface in this example) on opposite side surfaces, and the other side surface (see FIG. Is provided with a flat planar sandwiched portion 455 formed in parallel with the line connecting the centers of the small lenses 41a arranged in parallel with the optical axis and in the vertical direction of the drawing.
  • the first sandwiching portion 401 of the assembling apparatus used in the second embodiment is composed of two, and has a spherical first pressing portion 401a that presses each of the two weight-like concave portions 454.
  • the 2nd clamping part 402 has the planar 2nd press part 402a parallel to a Z-axis and a Y-axis.
  • the weight-like concave portion 454 and the planar sandwiched portion 455 of the lens module 2 are sandwiched by the first sandwiching portion 401 and the second sandwiching portion 402.
  • the lens module 2 is restricted by the Z-axis direction, the X-axis direction, the Y-axis direction, the rotation angle ⁇ around the Z axis, the rotation angle ⁇ x around the X axis, and the rotation angle ⁇ y around the Y axis. It is pinched in the state that was done.
  • the position adjustment operation between the lens module 2 and the image sensor 3 can be easily performed. Further, the lens module 2 can be securely held with a small force, and there is little possibility that the lens module 2 and the image sensor 3 are displaced from each other when the adhesive is cured.
  • the lens module 2 may include an inclined concave portion for holder instead of the one weight-like concave portion 454. Even in this way, the lens module 2 has the Z axis direction, the X axis direction, the Y axis direction, the rotation angle ⁇ around the Z axis, the rotation angle ⁇ x around the X axis, and the rotation angle ⁇ y around the Y axis. It is held in a restrained state.
  • FIG. 6 is a plan view of the lens module of the third embodiment.
  • the lens module 2 according to the third embodiment includes two conical weight-shaped concave portions 554 formed at a distance from each other on one side surface (the left side surface in this example) on opposite side surfaces. On the right side in the figure, a conical weight-like concave portion 554 is provided.
  • the first sandwiching portion 501 of the assembling apparatus used in the third embodiment is composed of two, and has a spherical first pressing portion 501a that presses each weight-like concave portion 554 on one side surface side.
  • the 2nd clamping part 502 has the spherical 2nd press part 502a which presses the weight-shaped recessed part 554 of the other side surface.
  • the two first pressing portions 501a and the second pressing portion 502a form two weight-like concave portions 554 on one side of the lens module 2 and one weight-like concave portion 554 on the other side. It is pinched.
  • the lens module 2 is restricted by the Z-axis direction, the X-axis direction, the Y-axis direction, the rotation angle ⁇ around the Z axis, the rotation angle ⁇ x around the X axis, and the rotation angle ⁇ y around the Y axis. It is pinched in the state that was done.
  • the position adjustment operation between the lens module 2 and the image sensor 3 can be easily performed. Further, there is little possibility that the lens module 2 and the image pickup device 3 are displaced from each other when the adhesive is cured.
  • FIG. 7 is an explanatory diagram of a lens module according to the fourth embodiment.
  • FIG. 7A is a plan view of the lens module
  • FIG. 7B is a left side view of the lens module.
  • the lens module 2 according to the fourth embodiment includes one conical weight-like concave portion 654 on one side surface (left side surface in this example) on both opposite side surfaces, and light on the other side surface (right side surface in the figure).
  • a flat planar sandwiched portion 655 is provided which is formed in parallel to a line connecting the centers of the small lenses 41a arranged in parallel to the axis and in the front-rear direction.
  • the lens module 2 of the fourth embodiment includes an adjacent side first reference portion 656 adjacent to the other side surface and perpendicular to the Y axis, and a second reference portion 657 formed on the upper surface.
  • the first reference portion 656 is formed in a plane parallel to the optical axis and perpendicular to the planar sandwiched portion 655.
  • the second reference portion 657 is formed in a plane perpendicular to the planar sandwiched portion 655 and the first reference portion 656, for example, at three corners on the upper surface.
  • the assembling apparatus used in the fourth embodiment includes a first sandwiching portion 601 having a spherical first pressing portion (convex sandwiching portion) 601a that presses the weight-like recess 654, and a planar sandwiched portion 655.
  • a second holding portion (planar holding portion) 602 that holds the first reference portion 656, a first receiving member 603 having a first receiving portion 603a that receives the first reference portion 656, and a second receiving portion 604a that receives the second reference portion 657.
  • the 2nd clamping part 602 has the planar 2nd press part 602a parallel to a Z-axis and a Y-axis.
  • the first receiving portion 603a of the first receiving member 603 is formed in a planar shape parallel to the Z axis and the X axis.
  • the second receiving member 604 includes three members disposed at positions corresponding to the second reference portions 657 of the lens module 2.
  • the second receiving portion 604a of each second receiving member 604 is formed on a plane perpendicular to the Z axis.
  • the distance L1 between the axis O6 and the first receiving portion 603a in the first pressing portion 601a is smaller than the distance L2 between the axis O5 and the first reference portion 656 in the weight-like recess 654, and the first pressing A distance L3 between the axis O6 and the second receiving portion 604a in the portion 601a is set to be smaller than a distance L4 between the axis O5 and the second reference portion 657 in the weight-like recess 654.
  • the planar sandwiched portion 655 and the second sandwiching portion 602 are in contact with the first reference portion 656 and the first receiving portion 603a, respectively, and the second reference portion 657 and the second receiving portion 604a are in contact with each other.
  • the axis O5 of the weight-like recess 654 and the axis O6 of the first pressing portion 601a are in an eccentric state.
  • the planar sandwiched portion 655 and the second sandwiched portion 602 are in a state where the first reference portion 656 and the first receiving portion 603a are opposed to the second reference portion 657 and the second receiving portion 604a, respectively.
  • the weight-like concave portion 654 is pressed toward the second sandwiching portion 602 by the first pressing portion 601a.
  • the weight-shaped recess 654 is the first.
  • the planar sandwiched portion 655 is pressed against the second sandwiching portion 602
  • the first reference portion 656 is placed on the first receiving portion 603a
  • the second reference portion 657 is placed on the second receiving portion.
  • the lens module 2 is clamped in the pressed state by being pressed against the portions 604a.
  • the lens module 2 is in a state where the Z axis direction, the X axis direction, the Y axis direction, the rotation angle ⁇ around the Z axis, the rotation angle ⁇ x around the X axis, and the rotation angle ⁇ y around the Y axis are determined and restrained. It is pinched by.
  • the position adjustment operation between the lens module 2 and the image pickup device 3 can be easily performed. Further, the lens module 2 can be securely clamped with a small force, and there is little possibility that the lens module 2 and the image pickup device 3 are displaced from each other when the adhesive is cured.
  • FIG. 8 is a plan view of the lens module of the fifth embodiment.
  • the lens module 202 of the fifth embodiment is provided with a V-shaped inclined concave portion 253 for a holder whose distance from each other becomes shorter as the depth becomes deeper on one side surface (the left side surface in the figure) of both opposing side surfaces.
  • a planar planar sandwiched portion 254 formed in parallel to the line connecting the centers of the small lenses 41a aligned in the front-rear direction in parallel with the optical axis is provided.
  • the assembling apparatus used in the fifth embodiment includes a first holding part 102 having a columnar first pressing part 102a and a second pressing part 202a having a planar shape parallel to the Z axis and the Y axis.
  • a clamping unit 203 is provided.
  • the inclined concave portion 253 for the holder of the lens module 202 is in contact with the first pressing portion 102a of the assembling apparatus, and the flat planar sandwiched portion 254 of the lens module 202 is in contact with the second pressing portion 202a.
  • the lens module 202 is clamped by this.
  • the lens module 202 determines the rotation angle ⁇ around the X axis, the Y axis, the rotation angle ⁇ around the Z axis, the rotation angle ⁇ x around the X axis, and the rotation angle ⁇ y around the Y axis. And is in a restrained state. Therefore, if only the Z-axis direction is determined and restricted in this sandwiched state, the lens module 202 cannot be moved, and alignment with the imaging surface 31 of the imaging element 3 held by the imaging element holding unit 110 is easily performed. In addition, the lens module 202 can be securely held with a small force, and there is little possibility that the lens module 202 and the image pickup device 3 are displaced from each other when the adhesive is cured.
  • FIG. 9 is an explanatory diagram of a lens module according to the sixth embodiment.
  • FIG. 9A is a plan view of the lens module
  • FIG. 9B is a left side view of the lens module.
  • the lens module 302 of the sixth embodiment includes a conical weight-shaped concave portion 354 that decreases in width as the depth increases on one side surface of both opposing side surfaces, and is parallel to the optical axis on the other side surface.
  • a planar sandwiched portion 355 is provided which is formed in parallel to a line connecting the centers of the small lenses 41a arranged in the front-rear direction.
  • the assembling apparatus used in the sixth embodiment includes a first holding portion 302 having a spherical first pressing portion 302a and a second pressing portion 303a having a planar shape parallel to the Z axis and the Y axis. And a sandwiching portion 303.
  • the weight-like concave portion 354 of the lens module 302 is brought into contact with the spherical first pressing portion 302a of the assembling apparatus, and the planar sandwiched portion 355 of the lens module 302 is brought into contact with the second pressing portion 302a. Is done. Thereby, the lens module 302 is clamped.
  • the lens module 302 determines the rotation angle ⁇ x around the X axis, that is, the Z axis direction, the X axis direction, the Y axis direction, the rotation angle ⁇ around the Z axis, and the rotation angle ⁇ y around the Y axis. And is in a restrained state.
  • the lens module 202 cannot be moved, and the position of the imaging device 3 held by the imaging device holding unit 110 with respect to the imaging surface 31
  • the lens module 302 can be securely clamped with a small force, and the lens module 302 and the image sensor 3 are less likely to be displaced from each other when the adhesive is cured.
  • the lens module 2 includes the lens holder 5, but the lens module 2 is not limited to this configuration and may not include the lens holder 5, and can be changed as appropriate. In that case, a sandwiched portion similar to the sandwiched portion of the lens holder 5 described above is formed on the opposite side surfaces of the lens module 2, and the lens module 2 is sandwiched between the sandwiched portions.
  • the lens unit 4 includes the first inclined concave portion for lens 42 and the second inclined concave portion for lens 43.
  • the present invention is not limited to this configuration, and can be changed as appropriate.
  • the lens unit 4 may not have one or both of the first inclined concave portion 42 for lenses and the second inclined concave portion 43 for lenses.
  • the lens holder 5 may be thick, and the weight-shaped concave portion or the inclined concave portion may not protrude inward from the inner surface of the lens holder 5.
  • the lens holder 5 must be thick, and the lens module 2 becomes large. Therefore, as in the above embodiment, the lens unit 4 preferably includes the first inclined concave portion for lens 42 and the second inclined concave portion 43 for lens.
  • the conical concave portion is the conical concave portion, but a polygonal weight such as a quadrangular pyramid or a hexagonal pyramid may be used.
  • the array lens of the lens unit has small lenses arranged in two directions orthogonal to each other.
  • the small lens 41a of the array lens 704 of the lens unit 702 is a regular six They may be arranged in a square arrangement.
  • the first inclined concave portion for lens 42 and the second inclined concave portion for lens 43 are formed between the small lenses 41a.
  • a lens module is a rectangular lens module, and includes a lens unit having one or a plurality of array lenses each having a plurality of small lenses arranged in an array, and opposite side surfaces in the rectangular shape. And a sandwiched portion that is sandwiched by the assembly device when assembled using the assembly device, and at least one of the sandwiched portions includes a concave sandwiched portion.
  • the sandwiched portion includes the concave sandwiched portion
  • the concave sandwiched portion is sandwiched so as to be pressed by, for example, a convex sandwiching portion provided in the assembling apparatus.
  • the lens module is securely held with a small force.
  • the friction coefficient is generally smaller than 0.5, so that the force for holding the rectangular parallelepiped is smaller than the force pressing the rectangular parallelepiped.
  • the lens module having the above configuration is based on the above idea.
  • the lens unit has a rectangular shape
  • the sandwiched portions are formed on opposite side surfaces of the lens unit
  • the concave sandwiched portion is the lens unit.
  • a conical recess that gradually decreases in width as the depth from one side of the lens unit increases, or a depth from one side of the lens unit.
  • An inclined concave portion having two opposed inclined surfaces whose distances gradually decrease as the depth increases is provided.
  • the lens unit includes a Z-axis direction parallel to the optical axis of the small lens, an X-axis direction and a Y-axis direction orthogonal to each other in a plane orthogonal to the optical axis, a rotation angle around the Z-axis, and a Y-axis. The rotation angle of the rotation is determined and the position of the lens unit with respect to the image sensor is easily adjusted.
  • the inclined concave portion formed on one side surface of the lens unit is pressed by the cylindrical holding portion, and the other side surface of the lens unit is held by the flat holding portion.
  • the lens unit is clamped while the X-axis direction and the Y-axis direction, the rotation angle around the Z-axis, the rotation angle around the X-axis and the rotation angle around the Y-axis are determined, and the lens unit is attached to the imaging device. Position adjustment becomes easy.
  • the weight-shaped concave portion or the inclined concave portion enters between adjacent small lenses of the lens unit.
  • the weight-shaped concave portion or the inclined concave portion is inserted between the adjacent small lenses of the lens unit, the weight-shaped concave portion or the inclined concave portion can be arranged efficiently.
  • the lens module further includes a cylindrical lens holder disposed so as to cover each side surface of the lens unit, and the sandwiched portions are opposite side surfaces of the lens holder.
  • the concave sandwiched portion is a weight-shaped concave portion that gradually decreases in width as the depth from one side surface of the lens holder becomes deeper on one side surface of both side surfaces of the lens holder, or
  • the lens holder includes an inclined recess having two opposed inclined surfaces whose distance gradually decreases as the depth from one side surface of the lens holder increases.
  • the lens holder has an X-axis direction and a Y-axis direction, a rotation angle around the Z axis, a rotation angle around the X axis, and a rotation angle around the Y axis.
  • the lens module is clamped while being determined, and the position adjustment of the lens unit with respect to the image sensor is facilitated, and the lens module can be securely clamped with a small force.
  • the concave sandwiched portion is formed on one of the weight-shaped concave portions formed on any one side surface of the both side surfaces and on the other side surface of the both side surfaces.
  • One inclined concave portion or two weight-like concave portions is formed on one of the weight-shaped concave portions formed on any one side surface of the both side surfaces and on the other side surface of the both side surfaces.
  • the lens module In such a lens module, one weight-like concave portion on one side surface and one inclined concave portion or two weight-like concave portions on the other side surface are sandwiched. As a result, the lens module is held while the Z-axis direction, the X-axis direction and the Y-axis direction, the rotation angle around the Z axis, the rotation angle around the X axis, and the rotation angle around the Y axis are determined. Accordingly, the position adjustment of the lens module with respect to the image sensor is further facilitated. Further, the lens module does not need to have a flat reference surface, and the lens module main body can be more securely clamped with a smaller force.
  • the concave sandwiched portion is formed on any one side surface of the both side surfaces, and the sandwiched portion is disposed on any other side surface of the both side surfaces.
  • a planar reference portion formed parallel to the optical axis of the lens, and formed on a side surface adjacent to the other side surface, perpendicular to the planar sandwiched portion and parallel to the optical axis;
  • a second reference portion formed perpendicular to the optical axis, and the assembling device includes a spherical first pressing portion that presses the concave sandwiched portion.
  • a projecting sandwiching section a planar sandwiching section sandwiching the planar sandwiched section, a first receiving section that is formed perpendicular to the planar sandwiching section and receives the first reference section, and the second reference
  • a second receiving portion for receiving the portion, wherein the concave sandwiched portion is the one side surface.
  • a weight-like concave portion that gradually decreases in width as the depth of the concave portion increases. When the weight-like concave portion is pressed by the first pressing portion, the planar sandwiched portion becomes the second clamping portion. The first reference portion is pressed against the first receiving portion, and the second reference portion is pressed against the second receiving portion.
  • the lens module when the weight-like concave portion is pressed when being held by the first pressing portion, the inner surface of the weight-like concave portion slides on the first pressing portion, and the planar sandwiched portion becomes the first pinched portion.
  • the first reference portion is pressed against the first receiving portion and the second reference portion is pressed against the second receiving portion, respectively. Therefore, when the weight-shaped concave portion is sandwiched between the first pressing portions, the lens module has the Z-axis direction, the X-axis direction and the Y-axis direction, the rotation angle around the Z-axis, and the rotation angle around the X-axis. And the rotation angle around the Y axis is held while being determined. Therefore, the position adjustment of the lens module with respect to the imaging device is further facilitated, and the lens module can be securely held with a small force.
  • a camera module includes an optical image of a subject formed by any of the lens modules described above and an imaging optical system that is assembled to the lens module and arranged in an array including the lens unit. And an image sensor for converting the signal into an electrical signal.
  • the concave sandwiched portion is sandwiched so as to be pressed by, for example, a convex sandwiching portion provided in the assembling apparatus.
  • the lens module is securely clamped with a small force. Therefore, when the lens module and the image sensor are bonded with an adhesive, even if the adhesive shrinks and causes a volume change, the sandwiched lens module is difficult to move, and the lens module is less likely to be distorted. Become.
  • a manufacturing method of a camera module which is a rectangular lens module having one or a plurality of array lenses each having a plurality of small lenses arranged in an array, and the rectangular shape
  • a lens module having a sandwiched portion at least one of the sandwiched portions, and an imaging optical system configured by the lens unit and arranged in an array.
  • a camera module manufacturing method for manufacturing a camera module including an imaging device that converts an optical image of a subject to be imaged into an electrical signal, using an assembly device having a convex sandwiching portion, The image pickup device is held by the attaching device, and the sandwiched portion of the lens module is protruded from the image pickup surface side of the image pickup device.
  • the concave sandwiched portion is sandwiched so as to be pressed by the convex sandwiching portion of the assembling apparatus, so that it can be easily aligned with the imaging device,
  • the lens module can be securely held with a small force.
  • the manufacturing method of the above camera module manufactures a camera module in which the sandwiched lens module is difficult to move even when the adhesive shrinks when the adhesive is cured, and the lens module is less likely to be distorted. it can.
  • a lens module a camera module, and a method for manufacturing the camera module can be provided.

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  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
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Abstract

A lens module and a camera module according to the present invention are each provided with clamping-receiving portions on opposing side surfaces, said clamping-receiving portions being clamped during mounting via a mounting device by the mounting device, and at least one of the clamping-receiving portions is provided with a concave clamping-receiving portion. In a method for manufacturing a camera module according to the present invention, an imaging element is held by the mounting device, and the concave clamping-receiving portion is clamped by a convex clamping portion of the mounting device on the imaging surface side of the imaging element.

Description

レンズモジュールおよびカメラモジュールならびにカメラモジュールの製造方法LENS MODULE, CAMERA MODULE, AND CAMERA MODULE MANUFACTURING METHOD
　本発明は、レンズモジュールおよびカメラモジュールならびにカメラモジュールの製造方法に関する。 The present invention relates to a lens module, a camera module, and a method for manufacturing the camera module.
　例えば特許文献１に、カメラモジュールの生産方法が開示されている。この特許文献１に開示されたカメラモジュールの生産方法は、レンズを保持した円筒状のレンズ鏡筒の上面を組付装置に吸着することによって、レンズ鏡筒を組付装置に保持し、その状態で、レンズと撮像素子との位置を調整する。詳しくは、レンズの光軸と平行なＺ軸方向と、前記光軸と直交する平面内で互いに直交するＸ軸方向およびＹ軸方向と、Ｚ軸回りの回転角度と、さらに、Ｘ軸回りの回転角度およびＹ軸回りの回転角度が調整される。その後、特許文献１では、接着剤によってレンズと撮像素子とが固定される。 For example, Patent Document 1 discloses a camera module production method. In the production method of the camera module disclosed in Patent Document 1, the lens barrel is held in the assembling apparatus by adsorbing the upper surface of the cylindrical lens barrel holding the lens to the assembling apparatus. Thus, the positions of the lens and the image sensor are adjusted. Specifically, the Z-axis direction parallel to the optical axis of the lens, the X-axis direction and the Y-axis direction orthogonal to each other in a plane orthogonal to the optical axis, the rotation angle around the Z-axis, and the rotation around the X-axis The rotation angle and the rotation angle around the Y axis are adjusted. Then, in patent document 1, a lens and an image pick-up element are fixed with an adhesive agent.
　しかし、レンズと撮像素子とが接着剤によって固定される場合、接着剤の硬化時の体積変化に伴う力がレンズと撮像素子とにかかってレンズと撮像素子とが位置ずれを起こすおそれがある。そのため、上記特許文献１に開示されたカメラモジュールの生産方法は、組付装置にレンズ鏡筒を吸着している。 However, when the lens and the image sensor are fixed by an adhesive, a force accompanying a volume change when the adhesive is cured may be applied to the lens and the image sensor, and the lens and the image sensor may be displaced. For this reason, the camera module production method disclosed in Patent Document 1 has a lens barrel attached to the assembling apparatus.
　また例えば特許文献２には、複数の小レンズを配設した薄い平板状のアレイレンズを、レンズ鏡筒を用いずに直接撮像素子に固定した撮像モジュールが開示されている。 Further, for example, Patent Document 2 discloses an imaging module in which a thin flat array lens provided with a plurality of small lenses is directly fixed to an imaging element without using a lens barrel.
　しかしながら、上記特許文献２のようにアレイレンズと撮像素子とを位置調整し固着させる場合、上面は、光路を確保するため、上面の面積が少ないので、アレイレンズを上側から吸着して保持することが難しく、また、アレイレンズの側面を保持する場合、薄い平板状の構造なので、側面を強く保持すると歪んでしまう。さらに、組付装置に設けられた挟持部で、アレイレンズの対向する両側面を挟持する場合、挟持部が面を挟持するため、挟持部に対してアレイレンズが滑り易い。そのため、挟持部でアレイレンズの両側面を大きい力で挟持することが必要である。しかし、アレイレンズは、歪み易いため、大きい力で挟持すると歪むおそれがある。 However, when the position of the array lens and the image pickup element is adjusted and fixed as in Patent Document 2, the upper surface has a small area on the upper surface in order to secure an optical path. In addition, when the side surface of the array lens is held, it is a thin flat plate structure, so that if the side surface is held strongly, it is distorted. Further, when the opposite side surfaces of the array lens are sandwiched by the sandwiching portion provided in the assembling apparatus, the sandwiching portion sandwiches the surfaces, so that the array lens easily slides with respect to the sandwiching portion. Therefore, it is necessary to clamp the both side surfaces of the array lens with a large force at the clamping portion. However, since the array lens is easily distorted, it may be distorted when sandwiched with a large force.
特開２００５－８６６５９号公報JP 2005-86659 A 特開２０１２－１５４８２５号公報JP 2012-154825 A
　本発明は、上述の事情に鑑みて為された発明であり、その目的は、１または複数のアレイレンズ（レンズユニット）を歪めることなく、容易にしかも、正確に位置合わせして組み付け得るレンズモジュールおよびカメラモジュールならびにカメラモジュールの製造方法を提供することである。 The present invention has been made in view of the above-described circumstances, and an object thereof is a lens module that can be easily and accurately aligned and assembled without distorting one or a plurality of array lenses (lens units). And a camera module and a method of manufacturing the camera module.
　本発明にかかるレンズモジュールおよびカメラモジュールは、対向する両側面に、組付装置を用いて組み付けられる際に、前記組付装置に挟持される被挟持部を備え、前記被挟持部の少なくともいずれか一方は、凹状被挟持部を備えている。そして、本発明にかかるカメラモジュールの製造方法は、組付装置で撮像素子を把持するとともに、前記撮像素子の撮像面側に前記被挟持部の前記凹状被挟持部を前記組付装置の凸状挟持部で挟持する。したがって、本発明にかかるレンズモジュールおよびカメラモジュールならびにカメラモジュールの製造方法は、レンズユニットが歪むことなく、容易にしかも、正確に位置合わせして組み付け得る。 The lens module and the camera module according to the present invention each include a sandwiched portion that is sandwiched by the assembly device when assembled using the assembly device on both opposing side surfaces, and at least one of the sandwiched portions. One has a concave sandwiched portion. And the manufacturing method of the camera module concerning this invention grasps an image sensor with an assembling apparatus, and makes the concave sandwiched part of the above-mentioned sandwiched part on the imaging surface side of the above-mentioned image sensor the convex shape of the above assembling apparatus. Clamp at the clamping part. Therefore, the lens module, the camera module, and the manufacturing method of the camera module according to the present invention can be easily and accurately aligned and assembled without distortion of the lens unit.
　上記並びにその他の本発明の目的、特徴および利点は、以下の詳細な記載と添付図面から明らかになるであろう。 The above and other objects, features and advantages of the present invention will become apparent from the following detailed description and the accompanying drawings.
第１実施形態のレンズモジュールを有するカメラモジュールの説明図である。It is explanatory drawing of the camera module which has a lens module of 1st Embodiment. 図１Ａに示すＩＩ－ＩＩ線での前記カメラモジュールの断面図である。FIG. 2 is a cross-sectional view of the camera module taken along line II-II shown in FIG. 1A. 前記カメラモジュールに用いられるレンズユニットの説明図である。It is explanatory drawing of the lens unit used for the said camera module. レンズモジュールと撮像素子とを組付装置で組付けする際の説明図である。It is explanatory drawing at the time of assembling | attaching a lens module and an image pick-up element with an assembling apparatus. 第２実施形態のレンズジュールの平面図である。It is a top view of the lens module of 2nd Embodiment. 第３実施形態のレンズモジュールの平面図である。It is a top view of the lens module of a 3rd embodiment. 第４実施形態のレンズモジュールの説明図である。It is explanatory drawing of the lens module of 4th Embodiment. 第５実施形態のレンズモジュールの平面図である。It is a top view of the lens module of a 5th embodiment. 第６実施形態のレンズモジュールの説明図である。It is explanatory drawing of the lens module of 6th Embodiment. レンズユニットの他の実施形態の平面図である。It is a top view of other embodiments of a lens unit.
　以下、本発明にかかる実施の一形態を図面に基づいて説明する。なお、各図において同一の符号を付した構成は、同一の構成であることを示し、適宜、その説明を省略する。本明細書において、総称する場合には添え字を省略した参照符号で示し、個別の構成を指す場合には添え字を付した参照符号で示す。 Hereinafter, an embodiment according to the present invention will be described with reference to the drawings. In addition, the structure which attached | subjected the same code | symbol in each figure shows that it is the same structure, The description is abbreviate | omitted suitably. In this specification, when referring generically, it shows with the reference symbol which abbreviate | omitted the suffix, and when referring to an individual structure, it shows with the reference symbol which attached the suffix.
　以下、本発明を実施するための形態について、図面を参照しながら詳細に説明する。図１は、第１実施形態のレンズモジュールを有するカメラモジュールの説明図である。図１Ａは、前記カメラモジュールの平面図であり、図１Ｂは、前記カメラモジュールの左側面図であり、図１Ｃは、前記カメラモジュールの右側面図である。図２は、図１Ａに示すＩＩ－ＩＩ線での前記カメラモジュールの断面図である。図３は、前記カメラモジュールに用いられるレンズユニットの説明図である。図３Ａは、前記レンズユニットの平面図であり、図３Ｂは、前記レンズユニットの左側面図であり、図３Ｃは、前記レンズユニットの右側面図である。 Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory diagram of a camera module having the lens module of the first embodiment. 1A is a plan view of the camera module, FIG. 1B is a left side view of the camera module, and FIG. 1C is a right side view of the camera module. FIG. 2 is a cross-sectional view of the camera module taken along line II-II shown in FIG. 1A. FIG. 3 is an explanatory diagram of a lens unit used in the camera module. 3A is a plan view of the lens unit, FIG. 3B is a left side view of the lens unit, and FIG. 3C is a right side view of the lens unit.
　本実施形態のカメラモジュール１は、レンズモジュール２と、レンズモジュール２に組み付けられた撮像素子３とを備えている。 The camera module 1 of the present embodiment includes a lens module 2 and an image sensor 3 assembled to the lens module 2.
　レンズモジュール２は、レンズユニット４と、レンズユニット４を保持した合成樹脂製のレンズホルダー５とを備えている。 The lens module 2 includes a lens unit 4 and a synthetic resin lens holder 5 holding the lens unit 4.
　レンズユニット４は、矩形状の１または複数のアレイレンズ４１を備えている。この実施形態では、レンズユニット４は、図２に示すように２つのアレイレンズ４１を備えている。各アレイレンズ４１は、アレイ状に配列された複数の小レンズ（個眼）４１ａを備える。 The lens unit 4 includes one or more rectangular array lenses 41. In this embodiment, the lens unit 4 includes two array lenses 41 as shown in FIG. Each array lens 41 includes a plurality of small lenses (single eyes) 41a arranged in an array.
　本実施形態では、図１Ａに示すように、アレイレンズ４１は、線形独立な２方向、この図１Ａの例では、互いに直交する２方向に２次元アレイ状に配列された複数（図１Ａでは４行４列の１６個）の小レンズ４１ａを備えている。 In this embodiment, as shown in FIG. 1A, the array lens 41 includes a plurality of (4 in FIG. 1A) arrayed in a two-dimensional array in two linearly independent directions, in the example of FIG. 1A, in two directions orthogonal to each other. 16 small lenses 41a in 4 rows and 4 columns).
　レンズユニットで構成され、アレイ状に配列された各撮像光学系は、１枚の小レンズで構成されてもよく、また光軸方向に沿って順に配置された複数枚の小レンズで構成されてもよい。 Each imaging optical system configured by a lens unit and arranged in an array may be configured by a single small lens, or may be configured by a plurality of small lenses arranged in order along the optical axis direction. Also good.
　この実施形態では、２枚のアレイレンズ４１が、互いに対応する個眼のレンズにおける位置を合わせつつ光軸方向に積層されており、各小レンズ４１ａは、２枚の個眼のレンズで構成されている。 In this embodiment, two array lenses 41 are stacked in the optical axis direction while aligning the positions of the corresponding single-lens lenses, and each small lens 41a is composed of two single-lens lenses. ing.
　レンズユニット４は、各小レンズ４１ａそれぞれで受光した各光が隣接する小レンズ４１ａに漏れ出すことを防ぐ遮光構造４１ｂを備えている。 The lens unit 4 includes a light shielding structure 41b that prevents each light received by each small lens 41a from leaking to the adjacent small lens 41a.
　このレンズユニット４は、図３に示すように、左側面（紙面では下側面）に凹部状に形成されたレンズ用第１傾斜状凹部４２と、右側面に凹部状に形成されたレンズ用第２傾斜状凹部４３とを備えている。 As shown in FIG. 3, the lens unit 4 includes a first inclined concave portion 42 for a lens formed in a concave shape on the left side surface (lower side surface in the drawing), and a first lens-shaped concave portion 42 formed in a concave shape on the right side surface. 2 inclined recesses 43.
　レンズ用第１傾斜状凹部４２とレンズ用第２傾斜状凹部４３とは、左右対称形状に形成されており、このため、以下、レンズ用第１傾斜状凹部４２について説明し、レンズ用第２傾斜状凹部４３の説明を省略する。 The first inclined concave portion for lens 42 and the second inclined concave portion for lens 43 are formed in a bilaterally symmetric shape. Therefore, the first inclined concave portion for lens 42 will be described below, and the second inclined portion for lens will be described. A description of the inclined recess 43 is omitted.
　レンズ用第１傾斜状凹部４２は、第１傾斜面４２ａと、第１傾斜面４２ａと対向した第２傾斜面４２ｂとを備えている。これらの傾斜面４２ａ、４２ｂは、レンズユニット４における対物側の面となる図の上面から像側の面となる図の下面にかけて、左側面側の中央部における隣接する２つの小レンズ４１ａの間に、左側面からの深さが深くなるに従って互いの距離が漸次短くなるように入り込んで形成されている。 The first inclined concave portion for lens 42 includes a first inclined surface 42a and a second inclined surface 42b facing the first inclined surface 42a. These inclined surfaces 42a and 42b are located between two adjacent small lenses 41a in the central portion on the left side surface from the upper surface of the figure serving as the object-side surface of the lens unit 4 to the lower surface of the diagram serving as the image-side surface. In addition, the distance from each other is gradually reduced as the depth from the left side increases.
　第１傾斜面４２ａと第２傾斜面４２ｂとは、レンズユニット４の上下中央線に対して紙面では左右対称になるように形成されており、これにより、レンズ用第１傾斜状凹部４２は、平面視で左側面からＶ字状に凹まされた形状に形成されている。 The first inclined surface 42a and the second inclined surface 42b are formed so as to be bilaterally symmetrical on the paper surface with respect to the vertical center line of the lens unit 4, whereby the first inclined concave portion 42 for the lens is It is formed in a shape recessed in a V shape from the left side surface in plan view.
　レンズホルダー５は、図１および図２に示すように、天部５１と、側部５２とを備えている。天部５１は、レンズユニット４の上面（対物側の面）の周縁部を全周に亘って覆うように配設されている。 The lens holder 5 includes a top 51 and a side 52 as shown in FIGS. The top 51 is disposed so as to cover the entire periphery of the peripheral edge of the upper surface (object-side surface) of the lens unit 4.
　側部５２は、矩形筒状を呈し、左右の両側面に、それぞれ、後述の組付装置１００に挟持される凹状被挟持部（被挟持部）５３、５４を備えている。 The side portion 52 has a rectangular cylindrical shape, and includes left and right side surfaces provided with recessed sandwiched portions (sandwiched portions) 53 and 54 that are sandwiched by an assembly device 100 described later.
　この実施形態の凹状被挟持部は、側部５２の左側面に凹まされるように形成されたホルダー用傾斜状凹部５３と、側部５２の右側面に凹まされるように形成された錘体状凹部５４とを備えている。 The concave sandwiched portion of this embodiment includes a holder-like inclined recess 53 formed to be recessed on the left side surface of the side portion 52, and a weight-like recess formed to be recessed on the right side surface of the side portion 52. 54.
　ホルダー用傾斜状凹部５３は、この実施形態では、レンズ用第１傾斜状凹部４２に嵌り込み得るように、側部５２の左側面の一部を、外面から内面にかけて、内側に突出させるようにして形成されている。 In this embodiment, the holder inclined concave portion 53 is configured such that a part of the left side surface of the side portion 52 protrudes inward from the outer surface to the inner surface so that the holder can be fitted into the first inclined concave portion 42 for lens. Is formed.
　したがって、この実施形態のホルダー用傾斜状凹部５３は、レンズ用第１傾斜状凹部４２と相似形状に形成されている。 Therefore, the inclined concave portion for holder 53 of this embodiment is formed in a similar shape to the first inclined concave portion for lens.
　より詳しくは、ホルダー用傾斜状凹部５３は、第１傾斜面５３ａと、第１傾斜面５３ａと対向した第２傾斜面５３ｂとを備えている。これらの傾斜面５３ａ、５３ｂは、レンズホルダー５の左側面からの深さが深くなるに従って互いの距離が短くなるように形成されている。 More specifically, the holder inclined concave portion 53 includes a first inclined surface 53a and a second inclined surface 53b facing the first inclined surface 53a. These inclined surfaces 53a and 53b are formed such that the distance from each other decreases as the depth from the left side surface of the lens holder 5 increases.
　第１傾斜面５３ａと第２傾斜面５３ｂとは、平面視で上下中心線５３ｃに対して対称になるように形成されており、これにより、ホルダー用傾斜状凹部５３は、平面視で左側面からＶ字状に凹まされた形状に形成されている。 The first inclined surface 53a and the second inclined surface 53b are formed so as to be symmetric with respect to the vertical center line 53c in a plan view, whereby the holder inclined concave portion 53 is formed on the left side surface in a plan view. To be V-shaped.
　錘体状凹部５４は、側部５２の右側面からの深さが深くなるに従って漸次幅小になる錘体部５４ａを有する形状に形成されている。この実施形態では、錘体状凹部５４は、平面視で軸心５４ｂが上下中心線５３ｃに沿って延びる円錐状に形成されている。 The spindle-shaped recess 54 is formed in a shape having a spindle part 54a that gradually decreases in width as the depth from the right side surface of the side part 52 increases. In this embodiment, the weight-like concave portion 54 is formed in a conical shape in which the axial center 54b extends along the vertical center line 53c in plan view.
　この実施形態の錘体状凹部５４は、レンズ用第２傾斜状凹部４３に入り込み得るように、側部５２の右側面の一部を、外面から内面にかけて、内側に突出させるようにして形成されている。 The weight-like concave portion 54 of this embodiment is formed so that a part of the right side surface of the side portion 52 protrudes inward from the outer surface to the inner surface so that it can enter the second inclined concave portion 43 for lenses. ing.
　このように構成された側部５２は、ホルダー用傾斜状凹部５３がレンズ用第１傾斜状凹部４２の位置に、錘体状凹部５４がレンズ用第２傾斜状凹部４３の位置に、それぞれ、位置合わせされるようにして、レンズユニット４の外周に配設されている。そして、この状態で、側部５２とレンズユニット４とが固定的に取り付けられている。 The side portion 52 thus configured has the holder inclined concave portion 53 at the position of the lens first inclined concave portion 42 and the weight-like concave portion 54 at the position of the lens second inclined concave portion 43, respectively. The lens unit 4 is disposed on the outer periphery so as to be aligned. In this state, the side portion 52 and the lens unit 4 are fixedly attached.
　撮像素子３は、複数の光電変換素子を備え、アレイレンズ４１の各小レンズ４１ａによって結像された物体（被写体）の各光学像をその各光量に応じてＲ（赤）、Ｇ（緑）、Ｂ（青）の各成分の画像信号にそれぞれ光電変換して、所定の画像処理を行う画像処理回路（不図示）へ出力する素子である。撮像素子３は、矩形状のパッケージと、前記パッケージの前面側に配設された撮像面３１とを備える。撮像素子３は、例えば、ＣＣＤ型のイメージセンサや、ＣＭＯＳ型のイメージセンサ等である。 The imaging device 3 includes a plurality of photoelectric conversion elements, and R (red) and G (green) of each optical image of an object (subject) formed by each small lens 41a of the array lens 41 according to each light amount. , B (blue) is an element that performs photoelectric conversion on the image signals of the respective components and outputs them to an image processing circuit (not shown) that performs predetermined image processing. The imaging element 3 includes a rectangular package and an imaging surface 31 disposed on the front side of the package. The imaging element 3 is, for example, a CCD type image sensor, a CMOS type image sensor, or the like.
　このように構成された撮像素子３は、撮像面３１をアレイレンズ４１側（対物側）に向けてレンズモジュール２の図２の下方側（像側）に配設される。そして、アレイレンズ４１と撮像素子３の撮像面３１との互いの位置（姿勢）が調整され、その位置調整された状態で、撮像素子３は、例えば紫外線硬化性接着剤等のエネルギー硬化型接着剤等の接着剤７によってレンズモジュール２に固定的に組み付けられる。 The imaging device 3 configured as described above is disposed on the lower side (image side) of FIG. 2 of the lens module 2 with the imaging surface 31 facing the array lens 41 side (object side). Then, the mutual position (attitude) of the array lens 41 and the imaging surface 31 of the imaging device 3 is adjusted, and the imaging device 3 is, for example, an energy curable adhesive such as an ultraviolet curable adhesive in the adjusted position. The lens module 2 is fixedly assembled by an adhesive 7 such as an agent.
　この撮像素子３とレンズモジュール２との組み付けは、組付装置１００が用いられて行われる。以下に、この実施形態に用いられる組付装置１００について説明する。図４は、レンズモジュールと撮像素子とを組付装置で組付けする際の説明図である。図４Ａは、その平面図であり、図４Ｂは、その側面図であり、図４Ｃは、その要部の拡大斜視図である。 The assembly of the imaging device 3 and the lens module 2 is performed using the assembly device 100. Below, the assembly | attachment apparatus 100 used for this embodiment is demonstrated. FIG. 4 is an explanatory diagram when the lens module and the image sensor are assembled by the assembling apparatus. 4A is a plan view thereof, FIG. 4B is a side view thereof, and FIG. 4C is an enlarged perspective view of an essential part thereof.
　まず、組付装置１００およびカメラモジュールの座標系について説明する。本実施形態では、図４に示すように、組付装置１００が設置される略水平な設置面に対し垂直方向をＺ軸としたＸＹＺ直交座標系が設定される。したがって、Ｚ軸に直交する図の左右方向にＸ軸が設定され、Ｚ軸に直交するとともにＸ軸に直交する前後方向にＹ軸が設定される。 First, the coordinate system of the assembling apparatus 100 and the camera module will be described. In the present embodiment, as shown in FIG. 4, an XYZ orthogonal coordinate system is set in which the vertical direction is the Z axis with respect to a substantially horizontal installation surface on which the assembling apparatus 100 is installed. Therefore, the X axis is set in the left-right direction of the figure orthogonal to the Z axis, and the Y axis is set in the front-rear direction orthogonal to the Z axis and orthogonal to the X axis.
　そして、組付装置１００は、レンズモジュール２を脱着自在に挟持するレンズ挟持部１０１と、撮像素子３を把持する撮像素子把持部１１０とを備えている。 The assembling apparatus 100 includes a lens clamping unit 101 that detachably holds the lens module 2 and an imaging device gripping unit 110 that grips the imaging device 3.
　レンズ挟持部１０１は、この実施形態では、レンズモジュール２を、上記座標系におけるＺ軸方向、Ｘ軸方向、Ｙ軸方向、Ｚ軸回りの回転角度θ、Ｘ軸回りの回転角度φｘおよびＹ軸回りの回転角度φｙを位置決めしながら挟持する。 In this embodiment, the lens clamping unit 101 is configured to connect the lens module 2 to the Z axis direction, the X axis direction, the Y axis direction, the rotation angle θ around the Z axis, the rotation angle φx around the X axis, and the Y axis in the coordinate system. The rotation angle φy around is clamped while positioning.
　このレンズ挟持部１０１は、Ｘ軸方向に移動可能に配設された第１挟持部（凸状挟持部）１０２と、第１挟持部１０２の右側方側に、第１挟持部１０２と所定距離を隔ててＸ軸方向に移動可能に配設された第２挟持部（凸状挟持部）１０３とを備えている。 The lens clamping unit 101 has a first clamping unit (convex clamping unit) 102 disposed so as to be movable in the X-axis direction, and a predetermined distance from the first clamping unit 102 on the right side of the first clamping unit 102. And a second sandwiching portion (convex sandwiching portion) 103 disposed so as to be movable in the X-axis direction.
　第１挟持部１０２は、先端側に、円柱状の第１押圧部１０２ａを備えている。この第１押圧部１０２ａは、軸心Ｏ１がＺ軸方向に沿うように配設されている。 The 1st clamping part 102 is equipped with the cylindrical 1st press part 102a in the front end side. The first pressing portion 102a is disposed such that the axis O1 is along the Z-axis direction.
　第２挟持部１０３は、先端側に、球面状の第２押圧部１０３ａを備えている。この第２押圧部１０３ａは、その中心Ｏ２が第１押圧部１０２ａの軸心Ｏ１と同じＸ軸上にくるように配設されている。 The second clamping part 103 includes a spherical second pressing part 103a on the tip side. The second pressing portion 103a is disposed such that its center O2 is on the same X axis as the axis O1 of the first pressing portion 102a.
　撮像素子把持部１１０は、レンズ挟持部１０１の下方側に、撮像素子３を着脱自在に把持可能に配設されている。そして、撮像素子把持部１１０は、図示しない位置調整手段によって、把持した撮像素子３の撮像面３１における上記座標系におけるＺ軸方向、Ｘ軸方向およびＹ軸方向の位置、ならびに、Ｚ軸回りの回転角度θ、Ｘ軸回りの回転角度φｘおよびＹ軸回りの回転角度φｙを調整できるように、構成されている。 The image sensor gripping part 110 is disposed below the lens clamping part 101 so as to be capable of detachably gripping the image sensor 3. Then, the image sensor gripping unit 110 is moved by a position adjusting unit (not shown) on the imaging surface 31 of the gripped image sensor 3 in the coordinate system in the Z-axis direction, the X-axis direction, and the Y-axis direction, and around the Z-axis. The rotation angle θ, the rotation angle φx around the X axis, and the rotation angle φy around the Y axis can be adjusted.
　次に、この組付装置１００を用いて、撮像素子３とレンズモジュール２とを組み付ける動作について説明する。まず、撮像素子３が撮像素子把持部１１０に把持される。 Next, the operation of assembling the image sensor 3 and the lens module 2 using the assembling apparatus 100 will be described. First, the image sensor 3 is gripped by the image sensor grip portion 110.
　次に、レンズモジュール２が撮像素子の撮像面側にレンズ挟持部１０１に挟持される。より詳しくは、レンズモジュール２のホルダー用傾斜状凹部５３と第１押圧部１０２ａとが対向し、そして、錘体状凹部５４と第２押圧部１０３ａとが対向するように、レンズモジュール２は、第１挟持部１０２と第２挟持部１０３との間に配設され、その状態から、第１挟持部１０２と第２挟持部１０３との一方または両方が、移動操作されてホルダー用傾斜状凹部５３、錘体状凹部５４を両者で挟持する。 Next, the lens module 2 is clamped by the lens clamping unit 101 on the imaging surface side of the imaging device. More specifically, the lens module 2 is configured so that the inclined concave portion 53 for the holder of the lens module 2 and the first pressing portion 102a face each other, and the weight-like concave portion 54 and the second pressing portion 103a face each other. The first holding part 102 and the second holding part 103 are arranged between the first holding part 102 and the second holding part 103. From this state, one or both of the first holding part 102 and the second holding part 103 are moved and operated, and the inclined concave portion for the holder is used. 53 and the weight-like recessed part 54 are clamped by both.
　この挟持状態では、レンズモジュール２のＶ字状のホルダー用傾斜状凹部５３が円柱状の第１押圧部１０２ａに、円錐状の錘体状凹部５４が球面状の第２押圧部１０３ａに、それぞれ押圧されて挟持されているため、レンズモジュール２は、光軸がＺ軸方向に合わされ、Ｚ軸方向、Ｘ軸方向、Ｙ軸方向、Ｚ軸回りの回転角度θ、Ｘ軸回りの回転角度φｘおよびＹ軸回りの回転角度φｙが決められて拘束された状態になる。 In this sandwiched state, the V-shaped holder inclined concave portion 53 of the lens module 2 is formed in the cylindrical first pressing portion 102a, and the conical weight-shaped concave portion 54 is formed in the spherical second pressing portion 103a. Since the lens module 2 is pressed and clamped, the optical axis of the lens module 2 is aligned with the Z-axis direction, the Z-axis direction, the X-axis direction, the Y-axis direction, the rotation angle θ around the Z axis, and the rotation angle φx around the X axis. And the rotation angle φy around the Y axis is determined and restrained.
　そして、この状態で、レンズモジュール２と撮像素子３との位置調整が行われる。より詳しくは、レンズモジュール２の撮像素子３とは反対側の物体側に調整基準チャートが配置され、前記調整基準チャートの光学像（チャート像）が小レンズ４１ａを通して撮像素子３に結像される。チャート像は、撮像素子３で光電変換されるので、それがモニタ上で観察され、バランスよく、コントラストの高い像が得られるように、上記Ｚ軸方向と、Ｘ軸方向およびＹ軸方向と、Ｚ軸回りの回転角度θ、Ｘ軸回りの回転角度φｘおよびＹ軸回りの回転角度φｙとの互いの位置調整が行われる。 In this state, the position adjustment between the lens module 2 and the image sensor 3 is performed. More specifically, an adjustment reference chart is arranged on the object side of the lens module 2 opposite to the image pickup device 3, and an optical image (chart image) of the adjustment reference chart is formed on the image pickup device 3 through the small lens 41a. . Since the chart image is photoelectrically converted by the image pickup device 3, the Z-axis direction, the X-axis direction, and the Y-axis direction are observed so that the image is observed on the monitor and an image with high balance and high contrast is obtained. The positions of the rotation angle θ around the Z axis, the rotation angle φx around the X axis, and the rotation angle φy around the Y axis are adjusted.
　その際、レンズモジュール２は、挟持される際に、Ｚ軸方向、Ｘ軸方向、Ｙ軸方向、Ｚ軸回りの回転角度θ、Ｘ軸回りの回転角度φｘおよびＹ軸回りの回転角度φｙが決められているため、レンズモジュール２と撮像素子３との位置調整の操作が容易できる。 At that time, when the lens module 2 is clamped, the Z-axis direction, the X-axis direction, the Y-axis direction, the rotation angle θ around the Z axis, the rotation angle φx around the X axis, and the rotation angle φy around the Y axis are Therefore, the position adjustment operation between the lens module 2 and the image sensor 3 can be easily performed.
　次に、撮像素子３が接する例えば４隅角部に、接着剤７が、塗布され、紫外線照射されて硬化される。 Next, the adhesive 7 is applied to, for example, the four corners where the image sensor 3 contacts, and is cured by being irradiated with ultraviolet rays.
　接着剤７が硬化する際に、接着剤７が収縮して体積変化を起こすが、ホルダー用傾斜状凹部５３と錘体状凹部５４とが挟持されているため、レンズモジュール２が接着剤７の体積変化に伴う力を受けても、レンズモジュール２は、第１押圧部１０２ａまたは第２押圧部１０３ａから滑り動く恐れが少ない。したがって、レンズモジュール２を小さい力で確実に挟持した状態にでき、接着剤の硬化に際してレンズモジュール２と撮像素子３とが互いに位置ずれを起こすおそれが少ない。 When the adhesive 7 is cured, the adhesive 7 contracts to cause a volume change. However, since the holder-shaped inclined concave portion 53 and the weight-shaped concave portion 54 are sandwiched, the lens module 2 is attached to the adhesive 7. The lens module 2 is less likely to slide from the first pressing portion 102a or the second pressing portion 103a even when receiving a force accompanying the volume change. Therefore, the lens module 2 can be securely clamped with a small force, and there is little possibility that the lens module 2 and the image sensor 3 are displaced from each other when the adhesive is cured.
　次に、第２実施形態のレンズモジュール２について、図５に基づいて説明する。図５は、第２実施形態のレンズジュールの平面図である。第２実施形態では、レンズモジュール２は、対向する両側面における一側面（この例では左側面）に、互いに距離をもって形成された２つの円錐状の錘体状凹部４５４を備え、他側面（図の右側面）に、光軸に平行に且つ紙面上下方向に並んだ小レンズ４１ａの中心を結ぶ線に平行に形成された平面状の平面状被挟持部４５５を備えている。 Next, the lens module 2 of the second embodiment will be described with reference to FIG. FIG. 5 is a plan view of the lens module of the second embodiment. In the second embodiment, the lens module 2 includes two conical weight-shaped concave portions 454 formed at a distance from each other on one side surface (left side surface in this example) on opposite side surfaces, and the other side surface (see FIG. Is provided with a flat planar sandwiched portion 455 formed in parallel with the line connecting the centers of the small lenses 41a arranged in parallel with the optical axis and in the vertical direction of the drawing.
　この第２実施形態に用いられる組付装置の第１挟持部４０１は、２つで構成され、２つの錘体状凹部４５４のそれぞれを押圧する球面状の第１押圧部４０１ａを有する。また、第２挟持部４０２は、Ｚ軸およびＹ軸に平行な平面状の第２押圧部４０２ａを有する。 The first sandwiching portion 401 of the assembling apparatus used in the second embodiment is composed of two, and has a spherical first pressing portion 401a that presses each of the two weight-like concave portions 454. Moreover, the 2nd clamping part 402 has the planar 2nd press part 402a parallel to a Z-axis and a Y-axis.
　そして、これらの第１挟持部４０１と第２挟持部４０２とによって、レンズモジュール２の錘体状凹部４５４と、平面状被挟持部４５５とが挟持される。 The weight-like concave portion 454 and the planar sandwiched portion 455 of the lens module 2 are sandwiched by the first sandwiching portion 401 and the second sandwiching portion 402.
　この挟持においても、レンズモジュール２は、Ｚ軸方向、Ｘ軸方向、Ｙ軸方向、Ｚ軸回りの回転角度θ、Ｘ軸回りの回転角度φｘおよびＹ軸回りの回転角度φｙが決められて拘束された状態で挟持される。 Even in this clamping, the lens module 2 is restricted by the Z-axis direction, the X-axis direction, the Y-axis direction, the rotation angle θ around the Z axis, the rotation angle φx around the X axis, and the rotation angle φy around the Y axis. It is pinched in the state that was done.
　したがって、レンズモジュール２と撮像素子３との位置調整の操作が容易にできる。また、レンズモジュール２を小さい力で確実に挟持した状態にでき、接着剤の硬化に際してレンズモジュール２と撮像素子３とが互いに位置ずれを起こすおそれが少ない。 Therefore, the position adjustment operation between the lens module 2 and the image sensor 3 can be easily performed. Further, the lens module 2 can be securely held with a small force, and there is little possibility that the lens module 2 and the image sensor 3 are displaced from each other when the adhesive is cured.
　なお、この第２実施形態において、レンズモジュール２は、一方の錘体状凹部４５４に代えてホルダー用傾斜状凹部を備えてもよい。このようにしても、レンズモジュール２は、Ｚ軸方向、Ｘ軸方向、Ｙ軸方向、Ｚ軸回りの回転角度θ、Ｘ軸回りの回転角度φｘおよびＹ軸回りの回転角度φｙが決められて拘束された状態で挟持される。 In the second embodiment, the lens module 2 may include an inclined concave portion for holder instead of the one weight-like concave portion 454. Even in this way, the lens module 2 has the Z axis direction, the X axis direction, the Y axis direction, the rotation angle θ around the Z axis, the rotation angle φx around the X axis, and the rotation angle φy around the Y axis. It is held in a restrained state.
　次に、第３実施形態のレンズモジュール２について、図６に基づいて説明する。図６は、第３実施形態のレンズモジュールの平面図である。第３実施形態のレンズモジュール２は、対向する両側面における一側面（この例では左側面）に、互いに距離を持って形成された２つの円錐状の錘体状凹部５５４を備え、他側面（図の右側面）に、１つの円錐状の錘体状凹部５５４を備えている。 Next, the lens module 2 of the third embodiment will be described with reference to FIG. FIG. 6 is a plan view of the lens module of the third embodiment. The lens module 2 according to the third embodiment includes two conical weight-shaped concave portions 554 formed at a distance from each other on one side surface (the left side surface in this example) on opposite side surfaces. On the right side in the figure, a conical weight-like concave portion 554 is provided.
　この第３実施形態に用いられる組付装置の第１挟持部５０１は、２つで構成され、一側面側の各錘体状凹部５５４を押圧する球面状の第１押圧部５０１ａを有する。また、第２挟持部５０２は、他側面側の錘体状凹部５５４を押圧する球面状の第２押圧部５０２ａを有する。 The first sandwiching portion 501 of the assembling apparatus used in the third embodiment is composed of two, and has a spherical first pressing portion 501a that presses each weight-like concave portion 554 on one side surface side. Moreover, the 2nd clamping part 502 has the spherical 2nd press part 502a which presses the weight-shaped recessed part 554 of the other side surface.
　そして、これらの２つの第１押圧部５０１ａと第２押圧部５０２ａとによって、レンズモジュール２の一側面側の２つの錘体状凹部５５４と、他側面側の１つの錘体状凹部５５４とが挟持される。 The two first pressing portions 501a and the second pressing portion 502a form two weight-like concave portions 554 on one side of the lens module 2 and one weight-like concave portion 554 on the other side. It is pinched.
　この挟持においても、レンズモジュール２は、Ｚ軸方向、Ｘ軸方向、Ｙ軸方向、Ｚ軸回りの回転角度θ、Ｘ軸回りの回転角度φｘおよびＹ軸回りの回転角度φｙが決められて拘束された状態で挟持される。 Even in this clamping, the lens module 2 is restricted by the Z-axis direction, the X-axis direction, the Y-axis direction, the rotation angle θ around the Z axis, the rotation angle φx around the X axis, and the rotation angle φy around the Y axis. It is pinched in the state that was done.
　したがって、レンズモジュール２と撮像素子３との位置調整の操作が容易にできる。また、レンズモジュール２と撮像素子３とが接着剤の硬化に際して互いに位置ずれを起こすおそれが少ない。 Therefore, the position adjustment operation between the lens module 2 and the image sensor 3 can be easily performed. Further, there is little possibility that the lens module 2 and the image pickup device 3 are displaced from each other when the adhesive is cured.
　次に、第４実施形態のレンズモジュール２について、図７に基づいて説明する。図７は、第４実施形態のレンズモジュールの説明図である。図７Ａは、前記レンズモジュールの平面図であり、図７Ｂは、前記レンズモジュールの左側面図である。第４実施形態のレンズモジュール２は、対向する両側面における一側面（この例では左側面）に、１つの円錐状の錘体状凹部６５４を備え、他側面（図の右側面）に、光軸に平行に且つ前後方向に並んだ小レンズ４１ａの中心を結ぶ線に平行に形成された平面状の平面状被挟持部６５５を備えている。 Next, the lens module 2 according to the fourth embodiment will be described with reference to FIG. FIG. 7 is an explanatory diagram of a lens module according to the fourth embodiment. FIG. 7A is a plan view of the lens module, and FIG. 7B is a left side view of the lens module. The lens module 2 according to the fourth embodiment includes one conical weight-like concave portion 654 on one side surface (left side surface in this example) on both opposite side surfaces, and light on the other side surface (right side surface in the figure). A flat planar sandwiched portion 655 is provided which is formed in parallel to a line connecting the centers of the small lenses 41a arranged in parallel to the axis and in the front-rear direction.
　第４実施形態のレンズモジュール２は、前記他側面と隣接しＹ軸に垂直な隣接側面第１基準部６５６と、上面に形成された第２基準部６５７とを備えている。 The lens module 2 of the fourth embodiment includes an adjacent side first reference portion 656 adjacent to the other side surface and perpendicular to the Y axis, and a second reference portion 657 formed on the upper surface.
　第１基準部６５６は、光軸に平行に且つ平面状被挟持部６５５に垂直な平面に形成されている。第２基準部６５７は、例えば上面における隅角部の３箇所に、平面状被挟持部６５５および第１基準部６５６に垂直な平面に形成されている。 The first reference portion 656 is formed in a plane parallel to the optical axis and perpendicular to the planar sandwiched portion 655. The second reference portion 657 is formed in a plane perpendicular to the planar sandwiched portion 655 and the first reference portion 656, for example, at three corners on the upper surface.
　この第４実施形態に用いられる組付装置は、錘体状凹部６５４を押圧する球面状の第１押圧部（凸状挟持部）６０１ａを有する第１挟持部６０１と、平面状被挟持部６５５を挟持する第２挟持部（平面状挟持部）６０２と、第１基準部６５６を受ける第１受け部６０３ａを有する第１受け部材６０３と、第２基準部６５７を受ける第２受け部６０４ａを有する第２受け部材６０４とを備えている。 The assembling apparatus used in the fourth embodiment includes a first sandwiching portion 601 having a spherical first pressing portion (convex sandwiching portion) 601a that presses the weight-like recess 654, and a planar sandwiched portion 655. A second holding portion (planar holding portion) 602 that holds the first reference portion 656, a first receiving member 603 having a first receiving portion 603a that receives the first reference portion 656, and a second receiving portion 604a that receives the second reference portion 657. And a second receiving member 604.
　第２挟持部６０２は、Ｚ軸およびＹ軸に平行な平面状の第２押圧部６０２ａを有する。第１受け部材６０３の第１受け部６０３ａは、Ｚ軸およびＸ軸に平行な平面状に形成されている。 The 2nd clamping part 602 has the planar 2nd press part 602a parallel to a Z-axis and a Y-axis. The first receiving portion 603a of the first receiving member 603 is formed in a planar shape parallel to the Z axis and the X axis.
　第２受け部材６０４は、レンズモジュール２の第２基準部６５７のそれぞれに対応する位置に配設された３つから構成されている。各第２受け部材６０４の第２受け部６０４ａは、Ｚ軸に垂直な平面に形成されている。 The second receiving member 604 includes three members disposed at positions corresponding to the second reference portions 657 of the lens module 2. The second receiving portion 604a of each second receiving member 604 is formed on a plane perpendicular to the Z axis.
　第１押圧部６０１ａにおける軸心Ｏ６と第１受け部６０３ａとの距離Ｌ１が、上記錘体状凹部６５４における軸心Ｏ５と第１基準部６５６との距離Ｌ２よりも小さく、且つ、第１押圧部６０１ａにおける軸心Ｏ６と第２受け部６０４ａとの距離Ｌ３が、上記錘体状凹部６５４における軸心Ｏ５と第２基準部６５７との距離Ｌ４よりも小さく設定されている。 The distance L1 between the axis O6 and the first receiving portion 603a in the first pressing portion 601a is smaller than the distance L2 between the axis O5 and the first reference portion 656 in the weight-like recess 654, and the first pressing A distance L3 between the axis O6 and the second receiving portion 604a in the portion 601a is set to be smaller than a distance L4 between the axis O5 and the second reference portion 657 in the weight-like recess 654.
　これにより、平面状被挟持部６５５と第２挟持部６０２とが、第１基準部６５６と第１受け部６０３ａとが、第２基準部６５７と第２受け部６０４ａとが、それぞれ当接した状態で、錘体状凹部６５４の軸心Ｏ５と第１押圧部６０１ａの軸心Ｏ６とが偏芯した状態になっている。 Thereby, the planar sandwiched portion 655 and the second sandwiching portion 602 are in contact with the first reference portion 656 and the first receiving portion 603a, respectively, and the second reference portion 657 and the second receiving portion 604a are in contact with each other. In this state, the axis O5 of the weight-like recess 654 and the axis O6 of the first pressing portion 601a are in an eccentric state.
　そして、平面状被挟持部６５５と第２挟持部６０２とが、第１基準部６５６と第１受け部６０３ａとが、第２基準部６５７と第２受け部６０４ａとが、それぞれ対向した状態で、錘体状凹部６５４が第１押圧部６０１ａによって第２挟持部６０２側に押圧される。 The planar sandwiched portion 655 and the second sandwiched portion 602 are in a state where the first reference portion 656 and the first receiving portion 603a are opposed to the second reference portion 657 and the second receiving portion 604a, respectively. The weight-like concave portion 654 is pressed toward the second sandwiching portion 602 by the first pressing portion 601a.
　その際、上記第１押圧部６０１ａにおける上記距離Ｌ１が上記錘体状凹部６５４における上記距離Ｌ２よりも小さく、且つ、上記距離Ｌ３が上記距離Ｌ４よりも小さいため、錘体状凹部６５４が第１押圧部６０１ａに押圧される際に、平面状被挟持部６５５が第２挟持部６０２に押し当てられるとともに、第１基準部６５６が第１受け部６０３ａに、第２基準部６５７が第２受け部６０４ａに、それぞれ押し当てるように押圧され、レンズモジュール２は、その押圧状態で挟持される。 At this time, since the distance L1 in the first pressing portion 601a is smaller than the distance L2 in the weight-shaped recess 654 and the distance L3 is smaller than the distance L4, the weight-shaped recess 654 is the first. When pressed by the pressing portion 601a, the planar sandwiched portion 655 is pressed against the second sandwiching portion 602, the first reference portion 656 is placed on the first receiving portion 603a, and the second reference portion 657 is placed on the second receiving portion. The lens module 2 is clamped in the pressed state by being pressed against the portions 604a.
　したがって、レンズモジュール２は、Ｚ軸方向、Ｘ軸方向、Ｙ軸方向、Ｚ軸回りの回転角度θ、Ｘ軸回りの回転角度φｘおよびＹ軸回りの回転角度φｙが決められて拘束された状態で挟持される。 Therefore, the lens module 2 is in a state where the Z axis direction, the X axis direction, the Y axis direction, the rotation angle θ around the Z axis, the rotation angle φx around the X axis, and the rotation angle φy around the Y axis are determined and restrained. It is pinched by.
　よって、この第４実施形態においても、レンズモジュール２と撮像素子３との位置調整の操作が容易にできる。また、レンズモジュール２を小さい力で確実に挟持でき、接着剤の硬化に際してレンズモジュール２と撮像素子３とが互いに位置ずれを起こすおそれが少ない。 Therefore, also in the fourth embodiment, the position adjustment operation between the lens module 2 and the image pickup device 3 can be easily performed. Further, the lens module 2 can be securely clamped with a small force, and there is little possibility that the lens module 2 and the image pickup device 3 are displaced from each other when the adhesive is cured.
　次に、第５実施形態のレンズモジュールについて、図８に基づいて説明する。図８は、第５実施形態のレンズモジュールの平面図である。第５実施形態のレンズモジュール２０２は、対向する両側面の一側面（図の左側面）に、深さが深くなるに従って互いの距離が短くなるＶ字状のホルダー用傾斜状凹部２５３を備え、他側面（図の右側面）に、光軸に平行に且つ前後方向に並んだ小レンズ４１ａの中心を結ぶ線に平行に形成された平面状の平面状被挟持部２５４を備えている。 Next, a lens module according to the fifth embodiment will be described with reference to FIG. FIG. 8 is a plan view of the lens module of the fifth embodiment. The lens module 202 of the fifth embodiment is provided with a V-shaped inclined concave portion 253 for a holder whose distance from each other becomes shorter as the depth becomes deeper on one side surface (the left side surface in the figure) of both opposing side surfaces. On the other side surface (the right side surface in the drawing), a planar planar sandwiched portion 254 formed in parallel to the line connecting the centers of the small lenses 41a aligned in the front-rear direction in parallel with the optical axis is provided.
　この第５実施形態に用いられる組付装置は、円柱状の第１押圧部１０２ａを有する第１挟持部１０２と、Ｚ軸およびＹ軸に平行な平面状の第２押圧部２０２ａを有する第２挟持部２０３を備えている。 The assembling apparatus used in the fifth embodiment includes a first holding part 102 having a columnar first pressing part 102a and a second pressing part 202a having a planar shape parallel to the Z axis and the Y axis. A clamping unit 203 is provided.
　そして、レンズモジュール２０２のホルダー用傾斜状凹部２５３は、組付装置の第１押圧部１０２ａに当接され、レンズモジュール２０２の平面状の平面状被挟持部２５４は、第２押圧部２０２ａに当接され、これによってレンズモジュール２０２は、挟持される。 The inclined concave portion 253 for the holder of the lens module 202 is in contact with the first pressing portion 102a of the assembling apparatus, and the flat planar sandwiched portion 254 of the lens module 202 is in contact with the second pressing portion 202a. The lens module 202 is clamped by this.
　この挟持状態では、レンズモジュール２０２は、Ｚ軸方向以外、すなわち、Ｘ軸方向、Ｙ軸方向、Ｚ軸回りの回転角度θ、Ｘ軸回りの回転角度φｘおよびＹ軸回りの回転角度φｙが決められて拘束された状態になる。したがって、この挟持状態で、Ｚ軸方向だけを決めて規制すれば、レンズモジュール２０２は、可動できなくなり、撮像素子把持部１１０に把持された撮像素子３の撮像面３１との位置合わせを容易に行うことができるとともに、レンズモジュール２０２を小さい力で確実に挟持でき、接着剤の硬化に際してレンズモジュール２０２と撮像素子３とが互いに位置ずれを起こすおそれが少ない。 In this clamping state, the lens module 202 determines the rotation angle θ around the X axis, the Y axis, the rotation angle θ around the Z axis, the rotation angle φx around the X axis, and the rotation angle φy around the Y axis. And is in a restrained state. Therefore, if only the Z-axis direction is determined and restricted in this sandwiched state, the lens module 202 cannot be moved, and alignment with the imaging surface 31 of the imaging element 3 held by the imaging element holding unit 110 is easily performed. In addition, the lens module 202 can be securely held with a small force, and there is little possibility that the lens module 202 and the image pickup device 3 are displaced from each other when the adhesive is cured.
　次に、第６実施形態のレンズモジュールについて、図９に基づいて説明する。図９は、第６実施形態のレンズモジュールの説明図である。図９Ａは、前記レンズモジュールの平面図であり、図９Ｂは、前記レンズモジュールの左側面図である。第６実施形態のレンズモジュール３０２は、対向する両側面の一側面に、深さが深くなるに従って幅小になる円錐状の錘体状凹部３５４を備え、他側面に、光軸に平行に且つ前後方向に並んだ小レンズ４１ａの中心を結ぶ線に平行に形成された平面状被挟持部３５５を備えている。 Next, a lens module according to the sixth embodiment will be described with reference to FIG. FIG. 9 is an explanatory diagram of a lens module according to the sixth embodiment. FIG. 9A is a plan view of the lens module, and FIG. 9B is a left side view of the lens module. The lens module 302 of the sixth embodiment includes a conical weight-shaped concave portion 354 that decreases in width as the depth increases on one side surface of both opposing side surfaces, and is parallel to the optical axis on the other side surface. A planar sandwiched portion 355 is provided which is formed in parallel to a line connecting the centers of the small lenses 41a arranged in the front-rear direction.
　この第６実施形態に用いられる組付装置は、球面状の第１押圧部３０２ａを有する第１挟持部３０２と、Ｚ軸およびＹ軸に平行な平面状の第２押圧部３０３ａを有する第２挟持部３０３とを備えている。そして、レンズモジュール３０２の錘体状凹部３５４は、組付装置の球面状の第１押圧部３０２ａに当接され、レンズモジュール３０２の平面状被挟持部３５５は、第２押圧部３０２ａを当接される。これによってレンズモジュール３０２は、挟持される。 The assembling apparatus used in the sixth embodiment includes a first holding portion 302 having a spherical first pressing portion 302a and a second pressing portion 303a having a planar shape parallel to the Z axis and the Y axis. And a sandwiching portion 303. The weight-like concave portion 354 of the lens module 302 is brought into contact with the spherical first pressing portion 302a of the assembling apparatus, and the planar sandwiched portion 355 of the lens module 302 is brought into contact with the second pressing portion 302a. Is done. Thereby, the lens module 302 is clamped.
　この挟持状態では、レンズモジュール３０２は、Ｘ軸回りの回転角度φｘ以外、すなわち、Ｚ軸方向、Ｘ軸方向、Ｙ軸方向、Ｚ軸回りの回転角度θおよびＹ軸回りの回転角度φｙが決められて拘束された状態になる。したがって、この挟持状態で、Ｘ軸回りの回転角度φｘだけを決めて規制すれば、レンズモジュール２０２は、可動できなくなり、撮像素子把持部１１０に把持された撮像素子３の撮像面３１との位置合わせを容易に行うことができるとともに、レンズモジュール３０２を小さい力で確実に挟持でき、接着剤の硬化に際してレンズモジュール３０２と撮像素子３とが互いに位置ずれを起こすおそれが少ない。 In this clamping state, the lens module 302 determines the rotation angle φx around the X axis, that is, the Z axis direction, the X axis direction, the Y axis direction, the rotation angle θ around the Z axis, and the rotation angle φy around the Y axis. And is in a restrained state. Therefore, if only the rotation angle φx about the X axis is determined and restricted in this sandwiched state, the lens module 202 cannot be moved, and the position of the imaging device 3 held by the imaging device holding unit 110 with respect to the imaging surface 31 The lens module 302 can be securely clamped with a small force, and the lens module 302 and the image sensor 3 are less likely to be displaced from each other when the adhesive is cured.
　なお、上記実施形態では、レンズモジュール２は、レンズホルダー５を備えているが、この形態のものに限らず、レンズホルダー５を有しないものであってもよく、適宜に変更できる。その場合、レンズモジュール２の対向する両側面に、上述のレンズホルダー５の被挟持部と同様な被挟持部が形成され、レンズモジュール２は、それらの被挟持部で挟持される。 In the above-described embodiment, the lens module 2 includes the lens holder 5, but the lens module 2 is not limited to this configuration and may not include the lens holder 5, and can be changed as appropriate. In that case, a sandwiched portion similar to the sandwiched portion of the lens holder 5 described above is formed on the opposite side surfaces of the lens module 2, and the lens module 2 is sandwiched between the sandwiched portions.
　また、上記実施形態では、レンズユニット４は、レンズ用第１傾斜状凹部４２とレンズ用第２傾斜状凹部４３とを備えているが、この形態のものに限らず、適宜に変更できる。 In the above embodiment, the lens unit 4 includes the first inclined concave portion for lens 42 and the second inclined concave portion for lens 43. However, the present invention is not limited to this configuration, and can be changed as appropriate.
　例えばレンズモジュール２は、レンズホルダー５を備えている場合、レンズユニット４は、レンズ用第１傾斜状凹部４２とレンズ用第２傾斜状凹部４３との一方または両方を有しないものにしてもよい。そして、レンズホルダー５の厚みが厚くされ、錘体状凹部または傾斜状凹部は、レンズホルダー５の内面から内方に突出しない形態のものでもよい。ただし、その場合は、レンズホルダー５は、肉厚の厚いものにしなければならず、レンズモジュール２が大型化してしまう。したがって、上記実施形態のように、レンズユニット４は、レンズ用第１傾斜状凹部４２とレンズ用第２傾斜状凹部４３とを備えていることが好ましい。 For example, when the lens module 2 includes the lens holder 5, the lens unit 4 may not have one or both of the first inclined concave portion 42 for lenses and the second inclined concave portion 43 for lenses. . The lens holder 5 may be thick, and the weight-shaped concave portion or the inclined concave portion may not protrude inward from the inner surface of the lens holder 5. However, in that case, the lens holder 5 must be thick, and the lens module 2 becomes large. Therefore, as in the above embodiment, the lens unit 4 preferably includes the first inclined concave portion for lens 42 and the second inclined concave portion 43 for lens.
　また、上記実施形態では、錘体状凹部を円錐体状凹部としたが、四角錐または六角錘などの多角形の錘体でもよい。 In the above embodiment, the conical concave portion is the conical concave portion, but a polygonal weight such as a quadrangular pyramid or a hexagonal pyramid may be used.
　また、上記実施形態では、レンズユニットのアレイレンズは、互いに直交する２方向に小レンズが配列されていたが、例えば図１０に示すようにレンズユニット７０２のアレイレンズ７０４の小レンズ４１ａは、正六角形配置に配列されてもよい。その場合、レンズ用第１傾斜状凹部４２およびレンズ用第２傾斜状凹部４３は、小レンズ４１ａの間に形成される。 In the above embodiment, the array lens of the lens unit has small lenses arranged in two directions orthogonal to each other. For example, as shown in FIG. 10, the small lens 41a of the array lens 704 of the lens unit 702 is a regular six They may be arranged in a square arrangement. In that case, the first inclined concave portion for lens 42 and the second inclined concave portion for lens 43 are formed between the small lenses 41a.
　本明細書は、上記のように様々な態様の技術を開示しているが、そのうち主な技術を以下に纏める。 This specification discloses various modes of technology as described above, and the main technologies are summarized below.
　一態様にかかるレンズモジュールは、矩形状のレンズモジュールであって、アレイ状に配列された複数の小レンズを持ったアレイレンズを１または複数、有するレンズユニットと、前記矩形状における対向する両側面に、組付装置を用いて組み付けられる際に前記組付装置に挟持される被挟持部とを備え、前記被挟持部の少なくともいずれか一方は、凹状被挟持部を備えている。 A lens module according to one aspect is a rectangular lens module, and includes a lens unit having one or a plurality of array lenses each having a plurality of small lenses arranged in an array, and opposite side surfaces in the rectangular shape. And a sandwiched portion that is sandwiched by the assembly device when assembled using the assembly device, and at least one of the sandwiched portions includes a concave sandwiched portion.
　このようなレンズモジュールでは、被挟持部が、凹状被挟持部を備えているため、この凹状被挟持部が、例えば組付装置に設けられた凸部状挟持部で押圧されるようにして挟持されることによって、レンズモジュールが小さい力で確実に挟持される。例えば平面と直方体のモデルで考えると、平面に直方体を押し付ける場合、一般に摩擦係数は、０．５よりも小さいので、直方体を押し付ける力より、直方体を保持する力は、小さくなる。同じ押し付ける力で保持力を上げるためには、平面と直方体とが接する面の摩擦係数を高くするか、接する面にそれぞれ凹部、凸部を形成して、凹部と凸部とが互いにかみ合うようにすればよい。上記構成のレンズモジュールは、上記考えに基づくものである。 In such a lens module, since the sandwiched portion includes the concave sandwiched portion, the concave sandwiched portion is sandwiched so as to be pressed by, for example, a convex sandwiching portion provided in the assembling apparatus. By doing so, the lens module is securely held with a small force. For example, when considering a model of a plane and a rectangular parallelepiped, when a rectangular parallelepiped is pressed against the plane, the friction coefficient is generally smaller than 0.5, so that the force for holding the rectangular parallelepiped is smaller than the force pressing the rectangular parallelepiped. In order to increase the holding force with the same pressing force, either increase the friction coefficient of the surface where the flat surface and the rectangular parallelepiped contact, or form a recess and a protrusion on the contact surface, respectively, so that the recess and the protrusion engage with each other. do it. The lens module having the above configuration is based on the above idea.
　したがって、レンズモジュールと撮像素子とが接着剤で接着される際に、接着剤が収縮して体積変化を起こしても、挟持されたレンズモジュールが可動し難く、しかも、レンズモジュールが歪むおそれが少なくなる。 Therefore, when the lens module and the image sensor are bonded with an adhesive, even if the adhesive shrinks and causes a volume change, the sandwiched lens module is difficult to move, and the lens module is less likely to be distorted. Become.
　他の一態様では、上述のレンズモジュールにおいて、前記レンズユニットは、矩形状を呈し、前記被挟持部は、前記レンズユニットにおける対向する両側面に形成され、前記凹状被挟持部は、前記レンズユニットの対向する両側面の少なくともいずれか一側面に、前記レンズユニットの一側面からの深さが深くなるに従って漸次幅小になる錘体状凹部、または、前記レンズユニットの一側面からの深さが深くなるに従って互いの距離が漸次短くなる２つの対向傾斜面を有する傾斜状凹部を備えている。 In another aspect, in the above-described lens module, the lens unit has a rectangular shape, the sandwiched portions are formed on opposite side surfaces of the lens unit, and the concave sandwiched portion is the lens unit. A conical recess that gradually decreases in width as the depth from one side of the lens unit increases, or a depth from one side of the lens unit. An inclined concave portion having two opposed inclined surfaces whose distances gradually decrease as the depth increases is provided.
　このようなレンズモジュールでは、例えば、球面状の挟持部でレンズユニットの一側面に形成した錘体状凹部が押圧され、他側面が平面状の挟持部で受けられるようにして挟持される。これによって、レンズユニットは、小レンズの光軸に平行なＺ軸方向と、光軸と直交する平面内で互いに直交するＸ軸方向およびＹ軸方向と、Ｚ軸回りの回転角度と、Ｙ軸回りの回転角度が決められながら挟持され、レンズユニットの撮像素子に対する位置調整が容易になる。 In such a lens module, for example, a weight-like concave portion formed on one side surface of the lens unit is pressed by a spherical holding portion, and the other side surface is held by a flat holding portion. Accordingly, the lens unit includes a Z-axis direction parallel to the optical axis of the small lens, an X-axis direction and a Y-axis direction orthogonal to each other in a plane orthogonal to the optical axis, a rotation angle around the Z-axis, and a Y-axis. The rotation angle of the rotation is determined and the position of the lens unit with respect to the image sensor is easily adjusted.
　あるいは、例えば、円柱状の挟持部でレンズユニットの一側面に形成した傾斜状凹部が押圧され、レンズユニットの他側面が平面状の挟持部で受けられるようにして挟持される。これによって、レンズユニットは、Ｘ軸方向およびＹ軸方向と、Ｚ軸回りの回転角度と、Ｘ軸回りの回転角度およびＹ軸回りの回転角度が決められながら挟持され、レンズユニットの撮像素子に対する位置調整が容易になる。 Alternatively, for example, the inclined concave portion formed on one side surface of the lens unit is pressed by the cylindrical holding portion, and the other side surface of the lens unit is held by the flat holding portion. As a result, the lens unit is clamped while the X-axis direction and the Y-axis direction, the rotation angle around the Z-axis, the rotation angle around the X-axis and the rotation angle around the Y-axis are determined, and the lens unit is attached to the imaging device. Position adjustment becomes easy.
　他の一態様では、上述のレンズモジュールにおいて、前記錘体状凹部または傾斜状凹部は、前記レンズユニットの隣接する小レンズの間に入り込んでいる。 In another aspect, in the above-described lens module, the weight-shaped concave portion or the inclined concave portion enters between adjacent small lenses of the lens unit.
　このようなレンズモジュールでは、錘体状凹部または傾斜状凹部は、レンズユニットの隣接する小レンズの間に入り込んでいるため、錘体状凹部または傾斜状凹部を効率よく配置でき、錘体状凹部または傾斜状凹部を形成するためにレンズモジュール全体の大きさを大きくする必要がなく、レンズモジュールが大型化するのを防止できる。 In such a lens module, since the weight-shaped concave portion or the inclined concave portion is inserted between the adjacent small lenses of the lens unit, the weight-shaped concave portion or the inclined concave portion can be arranged efficiently. Alternatively, it is not necessary to increase the size of the entire lens module in order to form the inclined concave portion, and it is possible to prevent the lens module from becoming large.
　他の一態様では、これら上述のレンズモジュールにおいて、前記レンズユニットの各側面を覆うように配設された筒状のレンズホルダーをさらに備え、前記被挟持部は、前記レンズホルダーにおける対向する両側面に形成され、前記凹状被挟持部は、前記レンズホルダーの両側面のいずれか一側面に、前記レンズホルダーの一側面からの深さが深くなるに従って漸次幅小になる錘体状凹部、または、前記レンズホルダーの一側面からの深さが深くなるに従って互いの距離が漸次短くなる２つの対向傾斜面を有する傾斜状凹部を備えている。 In another aspect, in the above-described lens modules, the lens module further includes a cylindrical lens holder disposed so as to cover each side surface of the lens unit, and the sandwiched portions are opposite side surfaces of the lens holder. The concave sandwiched portion is a weight-shaped concave portion that gradually decreases in width as the depth from one side surface of the lens holder becomes deeper on one side surface of both side surfaces of the lens holder, or The lens holder includes an inclined recess having two opposed inclined surfaces whose distance gradually decreases as the depth from one side surface of the lens holder increases.
　このようなレンズモジュールでは、上記レンズユニットの場合と同様に、レンズホルダーがＸ軸方向およびＹ軸方向と、Ｚ軸回りの回転角度と、Ｘ軸回りの回転角度およびＹ軸回りの回転角度が決められながら挟持され、レンズユニットの撮像素子に対する位置調整が容易になるとともに、レンズモジュールを小さい力で確実に挟持できる。 In such a lens module, as in the case of the lens unit described above, the lens holder has an X-axis direction and a Y-axis direction, a rotation angle around the Z axis, a rotation angle around the X axis, and a rotation angle around the Y axis. The lens module is clamped while being determined, and the position adjustment of the lens unit with respect to the image sensor is facilitated, and the lens module can be securely clamped with a small force.
　他の一態様では、これら上述のレンズモジュールにおいて、前記凹状被挟持部は、前記両側面のいずれか一側面に形成された１つの錘体状凹部と、前記両側面のいずれか他側面に形成された１つの傾斜状凹部または２つの錘体状凹部とを備えている。 In another aspect, in the above-described lens modules, the concave sandwiched portion is formed on one of the weight-shaped concave portions formed on any one side surface of the both side surfaces and on the other side surface of the both side surfaces. One inclined concave portion or two weight-like concave portions.
　このようなレンズモジュールでは、一側面側の１つの錘体状凹部と、他側面側の１つの傾斜状凹部または２つの錘体状凹部とが挟持される。これによって、レンズモジュールは、Ｚ軸方向と、Ｘ軸方向およびＹ軸方向と、Ｚ軸回りの回転角度と、Ｘ軸回りの回転角度およびＹ軸回りの回転角度が決められながら挟持される。したがって、レンズモジュールの撮像素子に対する位置調整が、より一層、容易になる。また、レンズモジュールは、平面状の基準面を備える必要がなくなり、レンズモジュール本体を、より小さい力でより確実に挟持できる。 In such a lens module, one weight-like concave portion on one side surface and one inclined concave portion or two weight-like concave portions on the other side surface are sandwiched. As a result, the lens module is held while the Z-axis direction, the X-axis direction and the Y-axis direction, the rotation angle around the Z axis, the rotation angle around the X axis, and the rotation angle around the Y axis are determined. Accordingly, the position adjustment of the lens module with respect to the image sensor is further facilitated. Further, the lens module does not need to have a flat reference surface, and the lens module main body can be more securely clamped with a smaller force.
　他の一態様では、これら上述のレンズモジュールにおいて、前記凹状被挟持部は、前記両側面のいずれか一側面に形成され、前記被挟持部は、前記両側面のいずれか他側面に、前記小レンズの光軸と平行に形成された平面状被挟持部を備え、前記他側面と隣接する隣接側面に、前記平面状被挟持部と垂直に且つ前記光軸と平行に形成された第１基準部と、前記平面状被挟持部および前記光軸と垂直に形成された第２基準部とを、さらに備え、前記組付装置は、前記凹状被挟持部を押圧する球面状の第１押圧部を有する凸状挟持部と、前記平面状被挟持部を挟持する平面状挟持部と、前記平面状挟持部と垂直に形成され前記第１基準部を受ける第１受け部と、前記第２基準部を受ける第２受け部とを備え、前記凹状被挟持部は、前記一側面からの深さが深くなるに従って漸次幅小になる錘体状凹部を備え、前記錘体状凹部は、前記第１押圧部に押圧される際に、前記平面状被挟持部が第２挟持部に、前記第１基準部が第１受け部に、前記第２基準部が第２受け部に、それぞれ、押し当てられるように構成されている。 In another aspect, in the above-described lens modules, the concave sandwiched portion is formed on any one side surface of the both side surfaces, and the sandwiched portion is disposed on any other side surface of the both side surfaces. A planar reference portion formed parallel to the optical axis of the lens, and formed on a side surface adjacent to the other side surface, perpendicular to the planar sandwiched portion and parallel to the optical axis; And a second reference portion formed perpendicular to the optical axis, and the assembling device includes a spherical first pressing portion that presses the concave sandwiched portion. A projecting sandwiching section, a planar sandwiching section sandwiching the planar sandwiched section, a first receiving section that is formed perpendicular to the planar sandwiching section and receives the first reference section, and the second reference A second receiving portion for receiving the portion, wherein the concave sandwiched portion is the one side surface. A weight-like concave portion that gradually decreases in width as the depth of the concave portion increases. When the weight-like concave portion is pressed by the first pressing portion, the planar sandwiched portion becomes the second clamping portion. The first reference portion is pressed against the first receiving portion, and the second reference portion is pressed against the second receiving portion.
　このようなレンズモジュールでは、錘体状凹部が第１押圧部に挟持される際に押圧されると、錘体状凹部の内面が第１押圧部を滑り動いて、平面状被挟持部が第２挟持部に、第１基準部が第１受け部に、第２基準部が第２受け部に、それぞれ、押し当てられる。したがって、錘体状凹部が第１押圧部に挟持される際に、レンズモジュールは、Ｚ軸方向と、Ｘ軸方向およびＹ軸方向と、Ｚ軸回りの回転角度と、Ｘ軸回りの回転角度およびＹ軸回りの回転角度が決められながら挟持される。よって、レンズモジュールの撮像素子に対する位置調整が、より一層、容易になるとともに、レンズモジュールを小さい力で確実に挟持できる。 In such a lens module, when the weight-like concave portion is pressed when being held by the first pressing portion, the inner surface of the weight-like concave portion slides on the first pressing portion, and the planar sandwiched portion becomes the first pinched portion. The first reference portion is pressed against the first receiving portion and the second reference portion is pressed against the second receiving portion, respectively. Therefore, when the weight-shaped concave portion is sandwiched between the first pressing portions, the lens module has the Z-axis direction, the X-axis direction and the Y-axis direction, the rotation angle around the Z-axis, and the rotation angle around the X-axis. And the rotation angle around the Y axis is held while being determined. Therefore, the position adjustment of the lens module with respect to the imaging device is further facilitated, and the lens module can be securely held with a small force.
　他の一態様にかかるカメラモジュールは、前述のいずれかのレンズモジュールと、前記レンズモジュールに組み付けられ、前記レンズユニットによって構成されアレイ状に配列された撮像光学系により結像される被写体の光学像を電気的な信号に変換する撮像素子とを備えている。 A camera module according to another aspect includes an optical image of a subject formed by any of the lens modules described above and an imaging optical system that is assembled to the lens module and arranged in an array including the lens unit. And an image sensor for converting the signal into an electrical signal.
　このようなカメラモジュールでは、凹状被挟持部が、例えば組付装置に設けられた凸部状挟持部で押圧されるようにして挟持される。これによって、レンズモジュールが小さい力で確実に挟持される。したがって、レンズモジュールと撮像素子とが接着剤で接着される際に、接着剤が収縮して体積変化を起こしても、挟持されたレンズモジュールが可動し難く、しかも、レンズモジュールが歪むおそれが少なくなる。 In such a camera module, the concave sandwiched portion is sandwiched so as to be pressed by, for example, a convex sandwiching portion provided in the assembling apparatus. As a result, the lens module is securely clamped with a small force. Therefore, when the lens module and the image sensor are bonded with an adhesive, even if the adhesive shrinks and causes a volume change, the sandwiched lens module is difficult to move, and the lens module is less likely to be distorted. Become.
　他の一態様にかかるカメラモジュールの製造方法は、矩形状のレンズモジュールであって、アレイ状に配列された複数の小レンズを持ったアレイレンズを１または複数、有するレンズユニットと、前記矩形形状における対向する両側面に被挟持部とを備え、前記被挟持部の少なくともいずれか一方が凹状被挟持部を有するレンズモジュールと、前記レンズユニットによって構成されアレイ状に配列された撮像光学系により結像される被写体の光学像を電気的な信号に変換する撮像素子とを備えたカメラモジュールを、凸状挟持部を有する組付装置を用いて製造するカメラモジュールの製造方法であって、前記組付装置で前記撮像素子を把持するとともに、前記撮像素子の撮像面側に前記レンズモジュールの前記被挟持部を前記組付装置の凸状挟持部で挟持する工程と、前記レンズモジュールの小レンズを通して前記撮像素子に結像されるチャート像に基づいて、前記小レンズの光軸と平行なＺ軸方向と、前記光軸と直交する平面内で互いに直交するＸ軸方向およびＹ軸方向と、Ｚ軸回りの回転角度と、Ｘ軸回りの回転角度およびＹ軸回りの回転角度とについての前記レンズモジュールと前記撮像素子との互いの位置調整を行う工程と、前記レンズモジュールと前記撮像素子とを接着剤で固定する工程と、を含む。 According to another aspect of the present invention, there is provided a manufacturing method of a camera module, which is a rectangular lens module having one or a plurality of array lenses each having a plurality of small lenses arranged in an array, and the rectangular shape A lens module having a sandwiched portion at least one of the sandwiched portions, and an imaging optical system configured by the lens unit and arranged in an array. A camera module manufacturing method for manufacturing a camera module including an imaging device that converts an optical image of a subject to be imaged into an electrical signal, using an assembly device having a convex sandwiching portion, The image pickup device is held by the attaching device, and the sandwiched portion of the lens module is protruded from the image pickup surface side of the image pickup device. Based on a step of holding by the holding unit, and a chart image formed on the imaging element through the small lens of the lens module, a Z-axis direction parallel to the optical axis of the small lens and a plane orthogonal to the optical axis Positions of the lens module and the image sensor with respect to the X axis direction and the Y axis direction orthogonal to each other, the rotation angle about the Z axis, and the rotation angle about the X axis and the rotation angle about the Y axis. A step of adjusting, and a step of fixing the lens module and the image sensor with an adhesive.
　このようなカメラモジュールの製造方法では、この凹状被挟持部が組付装置の凸部状挟持部で押圧されるようにして挟持されるため、撮像素子に対して、容易に位置合わせできるとともに、レンズモジュールを小さい力で確実に挟持できる。 In such a manufacturing method of the camera module, the concave sandwiched portion is sandwiched so as to be pressed by the convex sandwiching portion of the assembling apparatus, so that it can be easily aligned with the imaging device, The lens module can be securely held with a small force.
　したがって、上記カメラモジュールの製造方法は、接着剤が硬化する際に収縮して体積変化を起こしても、挟持されたレンズモジュールが可動し難く、しかも、レンズモジュールが歪むおそれの少ないカメラモジュールを製造できる。 Therefore, the manufacturing method of the above camera module manufactures a camera module in which the sandwiched lens module is difficult to move even when the adhesive shrinks when the adhesive is cured, and the lens module is less likely to be distorted. it can.
　この出願は、２０１３年６月１９日に出願された日本国特許出願特願２０１３－１２８３４４を基礎とするものであり、その内容は、本願に含まれるものである。 This application is based on Japanese Patent Application No. 2013-128344 filed on June 19, 2013, the contents of which are included in this application.
　本発明を表現するために、上述において図面を参照しながら実施形態を通して本発明を適切且つ十分に説明したが、当業者であれば上述の実施形態を変更および／または改良することは容易に為し得ることであると認識すべきである。したがって、当業者が実施する変更形態または改良形態が、請求の範囲に記載された請求項の権利範囲を離脱するレベルのものでない限り、当該変更形態または当該改良形態は、当該請求項の権利範囲に包括されると解釈される。 In order to express the present invention, the present invention has been properly and fully described through the embodiments with reference to the drawings. However, those skilled in the art can easily change and / or improve the above-described embodiments. It should be recognized that this is possible. Therefore, unless the modifications or improvements implemented by those skilled in the art are at a level that departs from the scope of the claims recited in the claims, the modifications or improvements are not covered by the claims. To be construed as inclusive.
　本発明によれば、レンズモジュールおよびカメラモジュールならびにカメラモジュールの製造方法を提供できる。 According to the present invention, a lens module, a camera module, and a method for manufacturing the camera module can be provided.

Claims (8)

  1. 　矩形状のレンズモジュールであって、
    　アレイ状に配列された複数の小レンズを持ったアレイレンズを１または複数、有するレンズユニットと、
    　前記矩形状における対向する両側面に、組付装置を用いて組み付けられる際に前記組付装置に挟持される被挟持部とを備え、
    　前記被挟持部の少なくともいずれか一方は、凹状被挟持部を備えていること
    　を特徴とするレンズモジュール。     A rectangular lens module,
    A lens unit having one or a plurality of array lenses each having a plurality of small lenses arranged in an array;
    On both opposing side surfaces in the rectangular shape, with a sandwiched portion that is sandwiched by the assembly device when assembled using an assembly device,
    At least one of the sandwiched portions includes a concave sandwiched portion.
  2. 　前記レンズユニットは、矩形状を呈し、
    　前記被挟持部は、前記レンズユニットにおける対向する両側面に形成され、
    　前記凹状被挟持部は、前記レンズユニットの対向する両側面の少なくともいずれか一側面に、前記レンズユニットの一側面からの深さが深くなるに従って漸次幅小になる錘体状凹部、または、前記レンズユニットの一側面からの深さが深くなるに従って互いの距離が漸次短くなる２つの対向傾斜面を有する傾斜状凹部を備えていること
    　を特徴とする請求項１に記載のレンズモジュール。     The lens unit has a rectangular shape,
    The sandwiched portions are formed on opposite side surfaces of the lens unit,
    The concave sandwiched portion is a weight-shaped concave portion that gradually decreases in width as the depth from one side surface of the lens unit becomes deeper on at least one side surface of the opposite side surfaces of the lens unit, or 2. The lens module according to claim 1, further comprising an inclined concave portion having two opposed inclined surfaces whose distances gradually become shorter as the depth from one side surface of the lens unit becomes deeper.
  3. 　前記錘体状凹部または傾斜状凹部は、前記レンズユニットの隣接する小レンズの間に入り込んでいること
    　を特徴とする請求項２に記載のレンズモジュール。     The lens module according to claim 2, wherein the weight-shaped concave portion or the inclined concave portion is inserted between adjacent lenslets of the lens unit.
  4. 　前記レンズユニットの各側面を覆うように配設された筒状のレンズホルダーをさらに備え、
    　前記被挟持部は、前記レンズホルダーにおける対向する両側面に形成され、
    　前記凹状被挟持部は、前記レンズホルダーの両側面のいずれか一側面に、前記レンズホルダーの一側面からの深さが深くなるに従って漸次幅小になる錘体状凹部、または、前記レンズホルダーの一側面からの深さが深くなるに従って互いの距離が漸次短くなる２つの対向傾斜面を有する傾斜状凹部を備えていること
    　を特徴とする請求項１ないし請求項３のいずれか１項に記載のレンズモジュール。     Further comprising a cylindrical lens holder disposed so as to cover each side of the lens unit,
    The sandwiched portions are formed on opposite side surfaces of the lens holder,
    The concave sandwiched portion is a weight-shaped concave portion that gradually decreases in width as the depth from one side surface of the lens holder becomes deeper on one side surface of both side surfaces of the lens holder, or the lens holder The inclined concave portion having two opposing inclined surfaces whose distance from each other is gradually shortened as the depth from one side surface becomes deeper. 5. Lens module.
  5. 　前記凹状被挟持部は、前記両側面のいずれか一側面に形成された１つの錘体状凹部と、前記両側面のいずれか他側面に形成された１つの傾斜状凹部または２つの錘体状凹部とを備えていること
    　を特徴とする請求項１ないし請求項４のいずれか１項に記載のレンズモジュール。     The concave sandwiched portion includes one weight-like concave portion formed on any one side surface of the both side surfaces and one inclined concave portion or two weight-like shapes formed on any other side surface of the both side surfaces. The lens module according to claim 1, further comprising a recess.
  6. 　前記凹状被挟持部は、前記両側面のいずれか一側面に形成され、
    　前記被挟持部は、前記両側面のいずれか他側面に、前記小レンズの光軸と平行に形成された平面状被挟持部を備え、
    　前記他側面と隣接する隣接側面に、前記平面状被挟持部と垂直に且つ前記光軸と平行に形成された第１基準部と、前記平面状被挟持部および前記光軸と垂直に形成された第２基準部とを、さらに備え、
    　前記組付装置は、前記凹状被挟持部を押圧する球面状の第１押圧部を有する凸状挟持部と、前記平面状被挟持部を挟持する平面状挟持部と、前記平面状挟持部と垂直に形成され前記第１基準部を受ける第１受け部と、前記第２基準部を受ける第２受け部とを備え、
    　前記凹状被挟持部は、前記一側面からの深さが深くなるに従って漸次幅小になる錘体状凹部を備え、
    　前記錘体状凹部は、前記第１押圧部に押圧される際に、前記平面状被挟持部が第２挟持部に、前記第１基準部が第１受け部に、前記第２基準部が第２受け部に、それぞれ、押し当てられるように構成されていること
    　を特徴とする請求項１ないし請求項５のいずれか１項に記載のレンズモジュール。     The concave sandwiched portion is formed on one side surface of the both side surfaces,
    The sandwiched portion includes a planar sandwiched portion formed in parallel to the optical axis of the small lens on any other side surface of the both side surfaces,
    A first reference portion formed on an adjacent side surface adjacent to the other side surface perpendicular to the planar sandwiched portion and parallel to the optical axis, and formed perpendicular to the planar sandwiched portion and the optical axis. A second reference portion,
    The assembly apparatus includes: a convex sandwiching portion having a spherical first pressing portion that presses the concave sandwiched portion; a planar sandwiching portion that sandwiches the planar sandwiched portion; and the planar sandwiching portion. A first receiving portion that is vertically formed to receive the first reference portion and a second receiving portion that receives the second reference portion;
    The concave sandwiched portion includes a weight-shaped concave portion that gradually decreases in width as the depth from the one side surface increases.
    When the weight-shaped concave portion is pressed by the first pressing portion, the planar sandwiched portion is the second sandwiching portion, the first reference portion is the first receiving portion, and the second reference portion is The lens module according to any one of claims 1 to 5, wherein each of the lens modules is configured to be pressed against the second receiving portion.
  7. 　請求項１ないし請求項６のいずれか１項に記載のレンズモジュールと、
    　前記レンズモジュールに組み付けられ、前記レンズユニットによって構成されアレイ状に配列された撮像光学系により結像される被写体の光学像を電気的な信号に変換する撮像素子とを備えていること
    　を特徴とするカメラモジュール。     The lens module according to any one of claims 1 to 6,
    An imaging element that is assembled to the lens module and converts an optical image of a subject formed by an imaging optical system configured by the lens unit and arranged in an array into an electrical signal. Camera module.
  8. 　矩形状のレンズモジュールであって、アレイ状に配列された複数の小レンズを持ったアレイレンズを１または複数、有するレンズユニットと、前記矩形形状における対向する両側面に被挟持部とを備え、前記被挟持部の少なくともいずれか一方が凹状被挟持部を有するレンズモジュールと、前記レンズユニットによって構成されアレイ状に配列された撮像光学系により結像される被写体の光学像を電気的な信号に変換する撮像素子とを備えたカメラモジュールを、凸状挟持部を有する組付装置を用いて製造するカメラモジュールの製造方法であって、
    　前記組付装置で前記撮像素子を把持するとともに、前記撮像素子の撮像面側に前記レンズモジュールの前記被挟持部を前記組付装置の凸状挟持部で挟持する工程と、
    　前記レンズモジュールの小レンズを通して前記撮像素子に結像されるチャート像に基づいて、前記小レンズの光軸と平行なＺ軸方向と、前記光軸と直交する平面内で互いに直交するＸ軸方向およびＹ軸方向と、Ｚ軸回りの回転角度と、Ｘ軸回りの回転角度およびＹ軸回りの回転角度とについての前記レンズモジュールと前記撮像素子との互いの位置調整を行う工程と、
    　前記レンズモジュールと前記撮像素子とを接着剤で固定する工程と、を含むこと
    　を特徴とするカメラモジュールの製造方法。     A rectangular lens module, a plurality of one or an array lens having a plurality of small lenses arranged in an array, and a lens unit having, a sneak lifting portion opposite sides of the rectangular shape, An optical image of a subject imaged by a lens module in which at least one of the sandwiched portions has a concave sandwiched portion and an imaging optical system configured by the lens unit and arranged in an array is used as an electrical signal. A camera module manufacturing method for manufacturing a camera module including an imaging device to be converted using an assembling apparatus having a convex sandwiching portion,
    Gripping the imaging device with the assembly device, and sandwiching the sandwiched portion of the lens module on the imaging surface side of the imaging device with the convex sandwiching portion of the assembly device;
    Based on the chart image formed on the image sensor through the small lens of the lens module, the Z-axis direction parallel to the optical axis of the small lens and the X-axis direction orthogonal to each other in a plane orthogonal to the optical axis Adjusting the positions of the lens module and the image sensor with respect to the Y axis direction, the rotation angle around the Z axis, the rotation angle around the X axis, and the rotation angle around the Y axis;
    And a step of fixing the lens module and the image sensor with an adhesive.
PCT/JP2014/065591 2013-06-19 2014-06-12 Lens module, camera module, and method for manufacturing camera module WO2014203800A1 (en)

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