WO2021075798A1 - 프리즘 구동 장치 - Google Patents
프리즘 구동 장치 Download PDFInfo
- Publication number
- WO2021075798A1 WO2021075798A1 PCT/KR2020/013810 KR2020013810W WO2021075798A1 WO 2021075798 A1 WO2021075798 A1 WO 2021075798A1 KR 2020013810 W KR2020013810 W KR 2020013810W WO 2021075798 A1 WO2021075798 A1 WO 2021075798A1
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- WO
- WIPO (PCT)
- Prior art keywords
- magnet
- disposed
- mover
- housing
- prism
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/0875—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more refracting elements
- G02B26/0883—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more refracting elements the refracting element being a prism
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/1805—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for prisms
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
- G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
- G02B5/045—Prism arrays
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/17—Bodies with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
- H04N23/682—Vibration or motion blur correction
- H04N23/685—Vibration or motion blur correction performed by mechanical compensation
- H04N23/686—Vibration or motion blur correction performed by mechanical compensation with a variable apex prism
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
- G03B2205/0007—Movement of one or more optical elements for control of motion blur
- G03B2205/0023—Movement of one or more optical elements for control of motion blur by tilting or inclining one or more optical elements with respect to the optical axis
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
- G03B2205/0053—Driving means for the movement of one or more optical element
- G03B2205/0069—Driving means for the movement of one or more optical element using electromagnetic actuators, e.g. voice coils
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
Definitions
- the present invention relates to a prism drive device.
- the camera module performs a function of photographing a subject and storing it as an image or video, and is mounted on a mobile terminal such as a mobile phone, a laptop computer, a drone, or a vehicle.
- portable devices such as smartphones, tablet PCs, and laptops have built-in micro camera modules, and these camera modules automatically adjust the distance between the image sensor and the lens to align the focal length of the lens (autofocus, AF). Function can be performed.
- a recent camera module can perform a zooming function of zooming up or zooming out by increasing or decreasing the magnification of a distant subject through a zoom lens.
- a recent camera module employs an image stabilization (IS) technology to correct or prevent image shake due to an unstable fixing device or a camera movement caused by a user's movement.
- IS image stabilization
- a camera module applied to a mobile terminal such as a mobile phone recently uses a prism to reduce the size of a product while implementing a zooming function.
- the problem to be solved by the present invention is to provide a prism driving device capable of reducing the size of a product.
- Prism driving apparatus for achieving the above object is a housing; A mover disposed in the housing; A prism disposed on the mover; A first magnet disposed on the mover; A coil disposed in the housing; A guide part disposed between the housing and the mover to guide the tilting of the mover; And a second magnet disposed in the housing and facing the first magnet, wherein the first magnet and the second magnet face each other with the same pole.
- the mover may be supported by the guide part by repulsive force of the first magnet and the second magnet.
- the central region of the guide part and the first magnet may not overlap in the optical axis direction.
- first magnet may include first to third magnet units
- the coil may include first to third coils.
- first magnet unit is disposed on a first side of the mover
- second magnet unit is disposed on a second side facing the first side of the mover
- third magnet unit is disposed on a first side of the mover. Can be placed on the lower side.
- first coil unit is disposed at a position corresponding to the first magnet unit
- second coil unit is disposed at a position corresponding to the second magnet unit
- third coil unit is disposed at a position corresponding to the second magnet unit. It may be disposed at a position corresponding to the unit.
- first and second magnet units may allow the mover to tilt based on a first axis
- the third magnet unit may allow the mover to tilt based on a second axis perpendicular to the first axis.
- a normal of the first side may be parallel to a normal of the second side, and a normal of the first side or the second side may be orthogonal to a normal of the lower surface.
- the second magnet may include a fourth magnet unit disposed at a position corresponding to the first magnet unit, and a fifth magnet unit disposed at a position corresponding to the second magnet unit.
- the lengths of the fourth and fifth magnet units in the first direction are longer than the lengths of the first and second magnet units in the first direction, respectively, and are perpendicular to the first direction of the fourth and fifth magnet units.
- the lengths in the two directions may be shorter than the lengths in the second direction of the first and second magnet units, respectively.
- fourth and fifth magnet units may be disposed higher than the central regions of the first and second magnet units, respectively.
- the housing may include a first groove formed on an upper surface, and the second magnet may be disposed in the first groove.
- the second magnet may be disposed on one side of the first magnet, and the guide portion may be disposed on the other side of the first magnet.
- the guide portion may be disposed between the mover and the surface facing each other of the housing.
- the guide portion may include a first protrusion disposed on a first surface facing the mover and a second protrusion disposed on a second surface facing the housing.
- first protrusion includes a first protrusion unit disposed on one side of the first surface and a second protrusion unit disposed on the other side, and the second protrusion comprises a center of the second surface.
- a third protrusion unit disposed on one side and a fourth protrusion unit disposed on the other side may be included as a reference.
- the mover is formed on an outer surface of the mover facing the first surface, and includes a first recess corresponding to the first protrusion, and the housing is inside of the housing facing the second surface. It is formed on the side and may include a second recess corresponding to the second protrusion.
- a substrate disposed on the housing may be included, and the coil may be electrically connected to the substrate.
- it may include a yoke disposed between the mover and the first magnet.
- Prism driving apparatus for achieving the above object is a housing; A mover disposed in the housing; A prism disposed on the mover; A first magnet disposed on the mover; A coil disposed in the housing; A guide part disposed between the housing and the mover to guide the tilting of the mover; And a second magnet disposed in the housing and facing the first magnet, and the mover and the guide part are supported by the housing by a repulsive force of the first magnet and the second magnet.
- FIG. 1 is a perspective view of a prism driving apparatus according to an embodiment of the present invention.
- FIG. 2 is an exploded perspective view of a prism driving apparatus according to an embodiment of the present invention.
- FIG 3 is a plan view of a prism driving apparatus according to an embodiment of the present invention.
- FIG. 4 is a perspective view of a partial configuration of a prism driving apparatus according to an embodiment of the present invention.
- FIG. 5 is a plan view of a partial configuration of a prism driving apparatus according to an embodiment of the present invention.
- 6 to 8 are views showing a guide part of a prism driving apparatus according to an embodiment of the present invention.
- FIG. 9 is a plan view of a partial configuration of a prism driving apparatus according to an embodiment of the present invention.
- 10 to 12 are perspective views of partial configurations of a prism driving apparatus according to an embodiment of the present invention.
- the technical idea of the present invention is not limited to some embodiments to be described, but may be implemented in various different forms, and within the scope of the technical idea of the present invention, one or more of the constituent elements may be selectively selected between the embodiments. It can be used by combining or substituting with.
- the singular form may also include the plural form unless specifically stated in the phrase, and when described as "at least one (or more than one) of A and (and) B and C", it is combined with A, B, and C. It may contain one or more of all possible combinations.
- first, second, A, B, (a), (b) may be used. These terms are only for distinguishing the constituent element from other constituent elements, and are not limited to the nature, order, or order of the constituent element by the term.
- a component when a component is described as being'connected','coupled', or'connected' to another component, the component is directly'connected','coupled', or'connected' to the other component. In addition to the case, it may include a case in which the component is'connected','coupled', or'connected' due to another component between the component and the other component.
- top (top)” or “bottom (bottom)” means that the two components are directly It includes not only the case of contact, but also the case where one or more other components are formed or disposed between the two components.
- upper (upper) or “lower (lower)
- the meaning of not only an upward direction but also a downward direction based on one component may be included.
- 1 is a perspective view of a prism driving apparatus according to an embodiment of the present invention.
- 2 is an exploded perspective view of a prism driving apparatus according to an embodiment of the present invention.
- 3 is a plan view of a prism driving apparatus according to an embodiment of the present invention.
- 4 is a perspective view of a partial configuration of a prism driving apparatus according to an embodiment of the present invention.
- 5 is a plan view of a partial configuration of a prism driving apparatus according to an embodiment of the present invention.
- 6 to 8 are views showing a guide part of a prism driving apparatus according to an embodiment of the present invention.
- 9 is a plan view of a partial configuration of a prism driving apparatus according to an embodiment of the present invention.
- 10 to 12 are perspective views of partial configurations of a prism driving apparatus according to an embodiment of the present invention.
- a prism driving apparatus 10 includes a housing 100, a guide part 200, a mover 300, a prism 400, and a 1 driving unit 500, the substrate 600, the second driving unit 700, the cover can 800, the sensor 900, the second magnet 1000 may be included, but some of these It may be implemented except for the configuration, and does not exclude additional configurations.
- the prism driving device 10 may include a housing 100.
- the housing 100 may form the exterior of the prism driving device 10.
- the housing 100 may be formed in a hexahedral shape with open top and side surfaces.
- the housing 100 includes a guide part 200, a mover 300, a prism 400, a first driving part 500, a substrate 600, a second driving part 700, and a sensor 900.
- Wow, the second magnet 1000 may be disposed.
- the housing 100 includes a lower surface 140, a first side wall 110, a second side wall 120 facing the first side wall 110, and a first side wall 110 and a second side wall 120. It may include a third sidewall 130 to connect.
- the substrate 600 may be disposed on the lower surface 140, the first sidewall 110, and the second sidewall 120 of the housing 100.
- the second driving unit 700 may be disposed on the lower surface 140 of the housing 100, the first sidewall 110, and the second sidewall 120.
- the lower surface 140 of the housing 100, the first sidewall 110, and the second sidewall 120 may include a groove 170 in which the second driving unit 700 is disposed.
- the guide part 200 may be disposed between the third sidewall 130 of the housing 100 and the mover 300.
- the guide part 200 may be coupled to the third sidewall 130 of the housing 100.
- the second protrusions 226 and 228 of the second surface 220 of the guide part 200 may be coupled to the third sidewall 130 of the housing 100.
- the third sidewall 130 of the housing 100 may include a second recess 132 in which the second protrusions 226 and 228 of the guide part 200 are disposed.
- the second recess 132 may be formed in a shape corresponding to the second protrusions 226 and 228.
- the second recess 132 may include a third protrusion unit 226 of the second protrusions 226 and 228 and a plurality of second recesses in which the fourth protrusion unit 228 is disposed, respectively.
- the plurality of second recesses may be spaced apart from each other in a vertical direction or a second direction.
- the prism driving device 10 may include a guide part 200.
- the guide part 200 may be disposed between the housing 100 and the mover 300.
- the guide part 200 may be disposed between the faces of the mover 300 and the housing 100 facing each other.
- the first surface 210 of the guide part 200 may face the mover 300
- the second surface 220 may face the third sidewall 130 of the housing 100.
- the guide part 200 may be formed in a plate shape.
- the guide part 200 includes first protrusions 212 and 214 protruding from the first surface 210 toward the mover 300, and a second protrusion protruding toward the mover 300 from the second surface 220.
- Protrusions 226 and 228 may be included.
- Grooves 222 and 224 or recesses may be formed at positions where the first protrusions 212 and 214 are formed among the second surface 210 of the guide part 200.
- Grooves 216 and 218 or recesses may be formed at positions where the second protrusions 226 and 228 are formed among the first surface 210 of the guide part 200.
- the first axial direction may mean a traveling direction of light reflected from the prism 400.
- the second axial direction may mean a direction perpendicular to the first axial direction and perpendicular to a traveling direction of light incident on the prism 400.
- the first protrusions 212 and 214 may be formed in a shape corresponding to the first recess 332 of the mover 300.
- the first protrusions 212 and 214 may be seated in the first recess 332 of the mover 300. At least a portion of the first protrusions 212 and 214 may be disposed in the first recess 332 of the mover 300.
- the first protrusions 212 and 214 may include a first protrusion unit 212 and a second protrusion unit 214 spaced apart in a horizontal direction.
- the first protrusion unit 212 may be disposed on one side based on the center of the first surface 210, and the second protrusion unit 214 may be disposed on the other side based on the center of the first surface 210. have.
- the second protrusions 226 and 228 may be formed in a shape corresponding to the second recess 132 of the third sidewall 130 of the housing 100.
- the second protrusions 226 and 228 may be seated in the second recess 132 of the third sidewall 130 of the housing 100. At least a portion of the second protrusions 226 and 228 may be disposed in the second recess 132 of the third sidewall 130 of the housing 100.
- the second protrusions 226 and 228 may include a third protrusion unit 226 and a fourth protrusion unit 228 spaced apart in a vertical direction.
- the third protruding unit 226 may be disposed on one side based on the center of the second surface 220, and the fourth protruding unit 228 may be disposed on the other side based on the center of the second surface 220. have.
- the guide part 200 may guide the tilting of the mover 300 in the biaxial direction.
- the guide part 200 may be formed of a non-magnetic material.
- the guide part 200 may be formed of stainless steel (SUS). Through this, electromagnetic interference with the first driving unit 500 and the second driving unit 700 may be prevented.
- the prism driving device 10 may include a mover 300.
- the mover 300 may be disposed on the housing 100.
- the mover 300 may be disposed inside the housing 100.
- the mover 300 may be tiltably supported in the housing 100 by the guide part 200.
- the mover 300 may include a receiving portion in which the prism 400 is disposed.
- the mover 300 may be supported by the guide part 200 by the repulsive force of the first magnet 500 and the second magnet 1000.
- the mover 300 may be supported by the housing 100 by the repulsive force of the first magnet 500 and the second magnet 1000.
- the mover 300 has a lower surface, a first side 310, a second side 320 facing the first side 310, and a first side connecting the first side 310 and the second side 320. It may include three sides (330).
- the first side surface 310 of the mover 300 may face the first side wall 110 of the housing 100.
- a first magnet unit 510 may be disposed on the first side 310 of the mover 300.
- the second side surface 320 of the mover 300 may face the second side wall 120 of the housing 200.
- a second magnet unit 520 may be disposed on the second side 320 of the mover 300.
- a third magnet unit 530 may be disposed on the lower surface of the mover 300.
- the normal of the first side 310 may be parallel to the normal of the second side 320.
- the normal of the first side 310 or the normal of the second side 320 may be orthogonal to the lower surface of the mover 300 or the normal of the third side 330.
- the mover 300 may include a first recess 332.
- the first recess 332 of the mover 300 may be formed in the third side surface 330 of the mover 300.
- the first recess 332 of the mover 300 may be formed at a position corresponding to the first protrusions 212 and 214 of the guide part 200.
- First protrusions 212 and 214 of the guide 200 may be disposed in the first recess 332 of the mover 330. At least a portion of the first protrusions 212 and 214 of the guide part 200 may be disposed in the first recess 332 of the mover 330.
- the first recess 332 of the mover 330 is a plurality of the first protrusion units 212 and the second protrusion units 214 of the first protrusions 212 and 214 of the guide part 200 are disposed.
- a first recess 332 may be included.
- the plurality of first recesses 332 may be spaced apart from each other in a horizontal direction, a first direction, or a second axial direction.
- the mover 300 may be arranged to be tiltable inside the housing 100.
- the mover 300 may be tilted based on the first axis and may be tilted based on the second axis.
- the mover 300 may be tilted with respect to the first axis by the first magnet 510 and the second magnet 520.
- the mover 300 may be tilted in a third direction perpendicular to the first direction by the third magnet 530.
- the prism driving device 10 may include a prism 400.
- the prism 400 may be disposed inside the housing 100.
- the prism 400 may be disposed on the mover 300.
- the prism 400 may have an upper surface and a side surface exposed to the outside.
- the prism 400 may change a light movement path vertically by reflecting light traveling from the top.
- the prism 400 is coupled to the mover 300 and may be tilted based on the first axis according to the movement of the mover 300 and may be tilted based on the second axis.
- the prism driving device 10 may include a first driving unit 500.
- the first driving unit 500 may be disposed on the mover 300.
- the first driving unit 500 may include a first magnet.
- the first driving unit 500 may face the second driving unit 700.
- the first driving unit 500 may tilt the mover 300 through electromagnetic interaction with the second driving unit 700.
- the first driving unit 500 includes a first magnet unit 510 disposed on the first side 310 of the mover 300 and a second magnet unit 520 disposed on the second side 320 of the mover 300. ), and a third magnet unit 530 disposed on a lower surface of the mover 300.
- the first to third magnet units 510, 520, and 530 may face the first to third coils 710, 720, and 730, respectively.
- the first and second magnet units 510 and 520 may tilt the prism 400 and the mover 300 based on the first axis through electromagnetic interaction with the first and second coils 710 and 720. have.
- the third magnet unit 530 may tilt the prism 400 and the mover 300 based on the second axis through electromagnetic interaction with the third coil 730.
- the first driving unit 500 may be a first magnet 500.
- the first magnet 500 may overlap or may not overlap with the guide part 200 in the optical axis direction.
- the first magnet 500 may overlap or may not overlap with the central region of the guide part 200 in the optical axis direction.
- the optical axis direction may include a first axis direction in which light is reflected from the prism 400 and a third axis direction in which light is incident on the prism 400.
- the first axis, the second axis, and the third axis may be orthogonal to each other.
- the prism driving device 10 may include a yoke (not shown).
- the yoke may be disposed between the first driving unit 500 and the mover 300.
- the yoke may cover at least a portion of the surfaces of the first driving unit 500 except for a surface facing the second driving unit 700 to prevent leakage of the magnetic field.
- the prism driving device 10 may include a substrate 600.
- the substrate 600 may be disposed on the housing 100.
- the lower surface of the substrate 600 may be disposed on the lower surface 100 of the housing 100.
- the substrate 600 may be disposed on the first sidewall 110 and the second sidewall 120 of the housing 100.
- a second driver 700 may be disposed on the substrate 600.
- the substrate 600 may be electrically connected to the second driver 700.
- the substrate 600 may receive power from the outside and supply current to the second driver 700.
- the substrate 600 may be electrically connected to the sensor 900.
- the substrate 600 may supply current to the sensor 900.
- the substrate 600 may include first to third surfaces.
- the first to third surfaces of the substrate 600 may be disposed on the lower surface 140 and the first and second sidewalls 110 and 120 of the housing 100, respectively.
- the substrate 600 may include a printed circuit board (PCB).
- the substrate 600 may include a flexible printed circuit board (FPCB).
- the prism driving device 10 may include a second driving unit 700.
- the second driving unit 700 may be disposed in the housing 100.
- the second driving unit 700 may be disposed inside the housing 100.
- the second driving unit 700 may be disposed in the housing 100.
- the second driver 700 may be disposed on the substrate 600.
- the second driver 700 may be electrically connected to the substrate 600.
- the second driving unit 700 may include a coil.
- the second driving unit 700 may face the first driving unit 500.
- the second driving unit 700 may tilt the prism 400 and the mover 300 through electromagnetic interaction with the first driving unit 500.
- the second driving unit 700 includes a first coil 710 disposed on the first surface of the substrate 600 or the first sidewall 110 of the housing 100, and the second surface or the housing 100 of the substrate 600. ) And a third coil 730 disposed on the third side (bottom) of the substrate or the bottom 140 of the housing 100. have.
- the first coil 710 is disposed at a position corresponding to the first magnet unit 510
- the second coil 720 is disposed at a position corresponding to the second magnet unit 520
- the third coil 730 May be disposed at a position corresponding to the third magnet unit 530.
- the first and second coils 710 and 720 can tilt the prism 400 and the mover 300 based on the first axis through electromagnetic interaction with the first and second magnet units 510 and 520. have.
- the third coil 730 may tilt the prism 400 and the mover 300 based on the second axis through electromagnetic interaction with the third magnet unit 530.
- the prism driving device 10 may include a cover can 800.
- the shield can 800 may surround the housing 100.
- the shield can 800 may be formed of a metal material.
- the shield can 800 may prevent an electromagnetic field generated inside the prism driving device 10 from being emitted to the outside.
- the shield can 800 may prevent electromagnetic interference within the prism driving device 10 that may be generated from the outside.
- the prism driving device 10 may include a sensor 900.
- the sensor 900 may be disposed in the second driving unit 700.
- the sensor 900 may face the first driving unit 500.
- the sensor 900 may be electrically connected to the substrate 600.
- the sensor may include a Hall sensor.
- the sensor 900 may detect movement of the first driving unit 500. Through this, feedback control is possible.
- the sensor 900 may include first to third sensor units disposed in the first to third coils 710, 720, and 730, respectively.
- the prism driving device 10 may include a second magnet 1000.
- the second magnet 1000 may be disposed in the housing 100.
- the second magnet 1000 may be disposed in the groove 180 formed on the upper surface of the housing 100.
- the second magnet 1000 may face the first driving unit 500.
- the first driving unit 500 may include a first magnet. That is, the mover 300 may be supported by the housing 100 by using the repulsive force between the second magnet 1000 and the first driving unit 500.
- the second magnet 1000 may face each other with the same pole as the first magnet 500. For example, surfaces of the second magnet 1000 and the first magnet 500 facing each other may be mounted on the same pole.
- the second magnet 1000 includes a fourth magnet unit 1010 disposed at a location corresponding to the first magnet unit 510 and a fifth magnet unit 1020 disposed at a location corresponding to the second magnet unit 520. ) Can be included.
- the lengths of the fourth and fifth magnet units 1010 and 1020 in the first direction may be longer than the lengths of the first and second magnet units 510 and 520 in the first direction.
- the length of the fourth and fifth magnet units 1010 and 1020 in the second direction perpendicular to the first direction may be shorter than the length of the first and second magnet units 510 and 520 in the second direction.
- the fourth and fifth magnet units 1010 and 1020 may be disposed higher than the central regions of the first and second magnet units 510 and 520, respectively.
- the fourth and fifth magnet units 1010 and 1020 may be disposed above the central regions of the first and second magnet units 510 and 520 in a second direction, respectively. Through this, the mover 300 can be stably brought into close contact with the housing 100.
- the fourth magnet unit 1010 may be disposed on one side of the first magnet unit 510, and the guide part 200 may be disposed on the other side of the first magnet unit 510.
- the fifth magnet unit 1020 may be disposed on one side of the second magnet unit 520, and the guide part 200 may be disposed on the other side of the second magnet unit 520.
- the tilting angle of the prism 300 based on the first axis may be within 1.5 degrees
- the tilting angle of the prism 300 based on the second axis may be less than 1.5 degrees.
- the mover 300 can be supported on the housing 100 by the repulsive force between the second magnet 1000 and the first driving unit 500, the size of the product can be reduced. .
- the prism driving device 10 may be a camera driving device that tilts the lens of the camera other than the prism 400.
- the prism driving device 10 may be a camera shake correction device or an OIS (Optical Image Stabilization) driving device.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Lens Barrels (AREA)
- Linear Motors (AREA)
Abstract
Description
Claims (10)
- 하우징;상기 하우징에 배치되는 무버(mover);상기 무버에 배치되는 프리즘(prism);상기 무버에 배치되는 제1 마그네트;상기 하우징에 배치되는 코일;상기 하우징과 상기 무버의 사이에 배치되어 상기 무버의 틸팅을 가이드하는 가이드부; 및상기 하우징에 배치되고 상기 제1 마그네트와 대향하는 제2 마그네트를 포함하고,상기 제1 마그네트와 상기 제2 마그네트는 동일 극으로 서로 대향하는 프리즘 구동 장치.
- 제1항에 있어서,상기 무버는 상기 제1 마그네트와 상기 제2 마그네트의 척력에 의해 상기 가이드부에 지지되는 프리즘 구동 장치.
- 제1항에 있어서,상기 가이드부의 중심 영역과 상기 제1 마그네트는 광축 방향으로 중첩되지 않는 프리즘 구동 장치.
- 제2항에 있어서,상기 제1 마그네트는 제1 내지 제3 마그네트 유닛을 포함하고,상기 코일은 제1 내지 제3 코일을 포함하는 프리즘 구동 장치.
- 제4항에 있어서,상기 제1 마그네트 유닛은 상기 무버의 제1 측면에 배치되고,상기 제2 마그네트 유닛은 상기 무버의 상기 제1 측면과 마주보는 제2 측면에 배치되고,상기 제3 마그네트 유닛은 상기 무버의 하면에 배치되는 프리즘 구동 장치.
- 제5항에 있어서,상기 제1 코일은 상기 제1 마그네트 유닛과 대응되는 위치에 배치되고,상기 제2 코일은 상기 제2 마그네트 유닛과 대응되는 위치에 배치되고,상기 제3 코일은 상기 제3 마그네트 유닛과 대응되는 위치에 배치되는 프리즘 구동 장치.
- 제6항에 있어서,상기 제1 및 제2 마그네트 유닛은 상기 무버가 제1 축을 기준으로 틸팅되도록 하고,상기 제3 마그네트 유닛은 상기 무버가 상기 제1 축과 수직한 제2 축을 기준으로 틸팅되도록 하는 프리즘 구동 장치.
- 제5항에 있어서,상기 제1 측면의 법선은 상기 제2 측면의 법선과 평행하고,상기 제1 측면 또는 상기 제2 측면의 법선은 상기 하면의 법선과 직교하는 프리즘 구동 장치.
- 제5항에 있어서,상기 제2 마그네트는 상기 제1 마그네트 유닛과 대응되는 위치에 배치되는 제4 마그네트 유닛과, 상기 제2 마그네트 유닛과 대응되는 위치에 배치되는 제5 마그네트 유닛을 포함하는 프리즘 구동 장치.
- 하우징;상기 하우징에 배치되는 무버(mover);상기 무버에 배치되는 프리즘(prism);상기 무버에 배치되는 제1 마그네트;상기 하우징에 배치되는 코일;상기 하우징과 상기 무버의 사이에 배치되어 상기 무버의 틸팅을 가이드하는 가이드부; 및상기 하우징에 배치되고 상기 제1 마그네트와 대향하는 제2 마그네트를 포함하고,상기 제1 마그네트와 상기 제2 마그네트의 척력에 의해 상기 무버와 상기 가이드부가 상기 하우징에 지지되는 프리즘 구동 장치.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202080072258.6A CN114585956B (zh) | 2019-10-15 | 2020-10-08 | 棱镜驱动装置 |
| US17/754,417 US12313841B2 (en) | 2019-10-15 | 2020-10-08 | Prism drive device |
| EP20877216.0A EP4047404B1 (en) | 2019-10-15 | 2020-10-08 | Prism drive device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020190128081A KR102833502B1 (ko) | 2019-10-15 | 2019-10-15 | 프리즘 구동 장치 |
| KR10-2019-0128081 | 2019-10-15 |
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| WO2021075798A1 true WO2021075798A1 (ko) | 2021-04-22 |
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| PCT/KR2020/013810 Ceased WO2021075798A1 (ko) | 2019-10-15 | 2020-10-08 | 프리즘 구동 장치 |
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| Country | Link |
|---|---|
| US (1) | US12313841B2 (ko) |
| EP (1) | EP4047404B1 (ko) |
| KR (2) | KR102833502B1 (ko) |
| CN (1) | CN114585956B (ko) |
| WO (1) | WO2021075798A1 (ko) |
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| CN115016193A (zh) * | 2021-02-19 | 2022-09-06 | 台湾东电化股份有限公司 | 光学元件驱动机构 |
| KR102878847B1 (ko) * | 2021-03-24 | 2025-10-31 | 엘지이노텍 주식회사 | 액추에이터 장치 |
| WO2022203214A1 (ko) * | 2021-03-24 | 2022-09-29 | 엘지이노텍 주식회사 | 액추에이터 장치 |
| TWI798143B (zh) * | 2022-07-15 | 2023-04-01 | 大立光電股份有限公司 | 影像穩定鏡頭模組、相機模組與電子裝置 |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP4047404B1 (en) | 2025-06-11 |
| US20220326510A1 (en) | 2022-10-13 |
| KR102833502B1 (ko) | 2025-07-11 |
| CN114585956B (zh) | 2024-03-01 |
| US12313841B2 (en) | 2025-05-27 |
| KR20250111268A (ko) | 2025-07-22 |
| KR20210044646A (ko) | 2021-04-23 |
| EP4047404A4 (en) | 2022-12-21 |
| EP4047404A1 (en) | 2022-08-24 |
| CN114585956A (zh) | 2022-06-03 |
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