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WO2012073362A1 - Système d'affichage de bureau - Google Patents

Système d'affichage de bureau Download PDF

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Publication number
WO2012073362A1
WO2012073362A1 PCT/JP2010/071553 JP2010071553W WO2012073362A1 WO 2012073362 A1 WO2012073362 A1 WO 2012073362A1 JP 2010071553 W JP2010071553 W JP 2010071553W WO 2012073362 A1 WO2012073362 A1 WO 2012073362A1
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WO
WIPO (PCT)
Prior art keywords
light
optical element
light reflecting
top plate
display system
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
Application number
PCT/JP2010/071553
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English (en)
Japanese (ja)
Inventor
橋川　広和
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pioneer Corp
Original Assignee
Pioneer Corp
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 Pioneer Corp filed Critical Pioneer Corp
Priority to PCT/JP2010/071553 priority Critical patent/WO2012073362A1/fr
Priority to JP2012546632A priority patent/JP5427961B2/ja
Publication of WO2012073362A1 publication Critical patent/WO2012073362A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/006—Systems in which light light is reflected on a plurality of parallel surfaces, e.g. louvre mirrors, total internal reflection [TIR] lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/50—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels
    • G02B30/56—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels by projecting aerial or floating images

Definitions

  • the present invention relates to a desktop display system that displays an image in a space on a desktop using an optical element.
  • Patent Document 1 an image of an object, which is a projection object placed on one side of an element, is formed on a position that is a surface object on the opposite side of the element by using a reflection-type plane-symmetric imaging element.
  • a spatial video display device is disclosed.
  • the reflection-type plane-symmetric imaging element used in this spatial image display device has a plurality of holes that penetrate a predetermined base in the thickness direction, and is a unit optical system that is composed of two mirror surface elements orthogonal to the inner wall of each hole An element is formed, and when light is transmitted from one surface direction of the substrate to the other surface direction through the hole, the light is reflected once by each of the two mirror elements.
  • the light emitted from the projection is reflected by one of the two mirror elements when passing through the unit optical element of the reflective surface-symmetric imaging element, and then reflected by the mirror surface to become reflected light.
  • the light is reflected by the other of the two specular elements of the unit optical element, and the projection object is imaged at a position reflected on the virtual mirror.
  • FIGS. 1 to 3 are diagrams showing the configuration of a reflection-type plane-symmetric imaging element (hereinafter referred to as a light reflection optical element) proposed in Patent Document 2.
  • FIG. FIG. 1 is an external view of a light reflecting optical element
  • FIG. 2 is an external view of a rectangular parallelepiped material constituting the light reflecting optical element
  • FIG. 3 is an external view showing a combination of two mirror sheets forming the light reflecting optical element.
  • the light reflecting optical element 2 has two mirror sheets 21 and 22 each formed by closely contacting a large number of rod-shaped rectangular parallelepiped materials 20 in parallel.
  • the rectangular parallelepiped material 20 is a long member, and is represented by transparent acrylic whose one side of a rectangular cross section in the direction perpendicular to the longitudinal direction, that is, in the short direction, is several hundred ⁇ m to several cm. Made of plastic or glass rod. The length varies depending on the size of the image to be projected, but is about several tens mm to several m. Note that three of the four surfaces extending in the longitudinal direction are surfaces used for light transmission or reflection, and thus are in a smooth state. About 100 to 20000 rectangular parallelepiped materials 20 are used for each of the mirror sheets 21 and 22.
  • a light reflecting film 23 is formed on one surface of the rectangular parallelepiped material 20 extending in the longitudinal direction, thereby forming a light reflecting surface.
  • the light reflecting film 23 is formed by vapor deposition or sputtering of aluminum or silver.
  • a mirror sheet 21 is formed by bringing the opposite surface 24 opposite to the surface on which the light reflecting film 23 of one rectangular parallelepiped member 20 is formed into close contact with the light reflecting surface 23 of another rectangular parallelepiped member 20. , 22 are formed. As shown in FIG. 3, the mirror sheets 21 and 22 are bonded together in a state in which one of the rectangular parallelepiped materials 20 is rotated by 90 degrees so that the parallel directions of the rectangular parallelepiped materials 20 intersect, thereby forming the light reflecting optical element 2. Is done.
  • the object 1 is disposed on one surface side of the light reflecting optical element 2, and the light reflecting optical element 2 includes the object 1 from the object 1.
  • Light is incident obliquely.
  • the observer's eyes E are positioned on the other surface side of the light reflecting optical element 2, and a real image 3, that is, a spatial image 3 is formed at a spatial position that is plane-symmetric with the object 1 with respect to the light reflecting optical element 2.
  • the lower end A and the upper end A ′ which are both ends of the light reflecting optical element 2 in FIG. 4, correspond to the opposing angles A and A ′ of the light reflecting optical element 2 in FIG. 1. More specifically, as shown in FIG.
  • each light reflecting surface 23 of the light reflecting optical element 2 has 1 each. It is designed to create a mirror image by reflecting twice, that is, twice.
  • an object 1 for example, an image displayed on a screen of a display device
  • a surface of the light reflecting optical element 2 are used. Since the spatial image 3 is formed at a symmetric space position, the object 1 does not exist in the space on one surface side of the light reflecting optical element 2 where the spatial image 3 is formed.
  • the spatial video display device is used in a desktop environment and the space on which the spatial video 3 is formed is a desktop space, it is not necessary to arrange a display device on the desk. There is an advantage that it can be used widely.
  • An object of the present invention is to provide a desktop display system capable of displaying an image in a space on a desktop.
  • one aspect of the present invention is a desktop display system that displays an image in a space on a desk, and is disposed as a table top in parallel to an installation surface on which the desk is installed.
  • a light transmissive top plate having a light transmission property a display unit that is disposed in a space below the light transmissive top plate, displays a predetermined image, and is disposed near the light transmissive top plate,
  • a planar plate-like light reflecting optical element that reflects light from the display unit toward the space on the desk above the light transmissive top plate, and the light reflecting optical element is arranged in the thickness direction.
  • a desktop display system that creates a mirror image of the predetermined image as a spatial image in the space on the desk.
  • FIG. 1 is an external perspective view of a light reflecting optical element according to an embodiment of the present invention.
  • FIG. 3 is a top view, a side view, and a front view of a light reflecting optical element according to an embodiment of the present invention.
  • FIG. 6 is a side view showing a schematic configuration of the desktop display system 10 according to the embodiment of the present invention.
  • the desktop display system 10 is a desk in which the top 4 is light transmissive, and has a function of displaying the spatial image 3 in the space above the top 4.
  • the desktop display system 10 includes, as characteristic components, a light-transmitting top 4 (hereinafter referred to as a light-transmitting top 4) that is installed horizontally with respect to the ground, and a light-transmitting top 4
  • the display unit 1 is arranged in a lower space of the display unit 1 and can display an image.
  • the display unit 1 is disposed below the light-transmitting top plate 4 with a slight inclination with respect to the light-transmitting top plate 4 and displayed on the display unit 1.
  • the desktop display system 10 will be described using the directions defined in FIG.
  • the display unit 1 includes a short focus type projector 11, a flat mirror 12 that reflects light emitted from the projector 11, and a transmissive screen 13 that projects light reflected by the flat mirror 12. That is, the display unit 1 projects an image on the transmissive screen 13. In the present embodiment, the image is projected onto the transmissive screen 13, but the configuration of the display unit 1 is of course not limited to this.
  • a direct-viewing type liquid crystal display may be used as the display unit 1.
  • the direct-viewing type liquid crystal display may be disposed at the position of the transmissive screen 13.
  • a reflective screen may be used instead of the transmissive screen 13 (the projector 11 is rearranged at a suitable position with respect to the reflective screen), and the light from the projector 11 is directly projected onto the screen. Good.
  • the light reflecting optical element 2 is the light reflecting optical element 2 shown in FIGS. 1 to 5 and is formed in a flat plate shape.
  • the mirror sheet 21 and the mirror sheet 22 constituting the light reflecting optical element 2 have the same shape, and the thickness of the mirror sheet 21 and the mirror sheet 22 (the length in the short direction of the light reflecting surface 23) is uniform. It has become.
  • FIG. 7 is an external perspective view of the light reflecting optical element 2
  • FIG. 8 is a top view, a side view, and a front view of the light reflecting optical element 2.
  • FIG. FIG. 7 shows the shape of the light reflecting optical element 2 when cut along a plane parallel to the left-right direction and the front-rear direction of FIG. 1 (when cut along the dotted line P of FIG. 1).
  • the directions of AA ′ shown in FIGS. 1, 6, 7, and 8 are all the same direction.
  • S shown in FIG.6 and FIG.8 is a design line-of-sight direction, ie, a line-of-sight direction in which the observer can see the brightest spatial image 3.
  • the design line-of-sight direction S is the AA ′ direction (from A to A ′ of the bonding surface L of the mirror sheets 21 and 22 (the surface F of the reflective optical element 2), that is, from the front to the back.
  • Direction seen from the top is a direction seen obliquely from above.
  • the mirror sheet 21 is also referred to as a first mirror sheet
  • the mirror sheet 22 is also referred to as a second mirror sheet
  • the light reflecting surface 23 of the mirror sheet 21 is a first light reflecting surface
  • the light reflecting surface 23 of the mirror sheet 22 is second light reflecting. Also called a surface.
  • the light beam emitted from the display unit 1 enters the light reflecting optical element 2 with an inclination of approximately 45 degrees (more precisely, the light L1 transmitted through the center of the transmissive screen 13 has an incident angle of 45).
  • the display unit 1 and the light reflecting optical element 2 are arranged so that the light reflecting optical element 2 is incident on the light reflecting optical element 2 at a degree, and the light beam emitted from the display unit 1 is the first light reflecting surface of the light reflecting optical element 2.
  • the light is reflected once by the second light reflecting surface and then emitted in a direction symmetrical to the incident direction with respect to the light reflecting optical element 2.
  • the light emitted from the display unit 1 is imaged at a position symmetrical to the transmission screen 13 with respect to the light reflecting optical element 2, and this becomes a spatial image 3. That is, since the upside down image of the image projected on the transmissive screen 13 is displayed as a real image in the space on the desk, the observer views the information displayed on the display unit 1 by viewing the space image 3 as the real image. Can be read.
  • the light reflecting optical element 2 has an optimum incident angle of light as described above. Light having an angle greatly deviating from the optimum incident angle does not become light that is reflected once on the first light reflection surface and the second light reflection surface even when incident on the light reflecting optical element 2, but becomes stray light. Therefore, it does not contribute to the image formation of the spatial image 3.
  • the light reflecting optical element 2 is formed so that the optimum light incident angle is 45 degrees with respect to the direction perpendicular to the surface F of the light reflecting optical element 2 (see FIG. 8). ).
  • the horizontal angle in the light reflecting optical element 2 refers to the angle in the left-right direction when the line of sight is shifted from the design line-of-sight direction S to the left-right direction
  • the vertical angle in the reflection optical element 2 is the line of sight in the design. An angle in the vertical direction when the line of sight is shifted from the direction S in the vertical direction.
  • the incident angle of 0 degrees in the horizontal direction means the design line-of-sight direction S. Therefore, in FIG. 9, when the line of sight is shifted from the design line-of-sight direction S to the left and right, the transmittance decreases. It is shown that. Specifically, when the line of sight is shifted from the designed line-of-sight direction S by about ⁇ 10 degrees in the left-right direction, the observer has a brightness of about 60% when viewing the spatial image 3 in the designed line-of-sight direction S. You will see spatial image 3.
  • the transmission screen 13 of the present embodiment is a screen having angle directivity, and has a function of narrowing light diffusion to a certain angle. This is because the light emitted from the projector 11 can be observed only on the extension of the optical path connecting the projection lens of the projector 11 and the projection position, and as described above, the light reflecting optical element 2 has an optimum light beam. This is because the incident angle exists, and the incident light greatly deviates from the optimum incident angle does not contribute to the image formation of the spatial image 3, so as to correspond to two contradictory conditions.
  • a range of up to 15 degrees with respect to the incident direction of light is sufficient in order to diffuse light in a range where the entire spatial image 3 can be seen, while minimizing the occurrence of stray light.
  • a transmissive screen 13 is used which can obtain diffuse light with high intensity and hardly emits diffused light in a range exceeding 30 degrees with respect to the incident direction of light.
  • FIG. 10 is a diagram showing the diffusion distribution of light incident on the transmissive screen 13, and more specifically, a graph showing the horizontal angle dependence of the intensity of light incident on the transmissive screen 13.
  • the horizontal angle in the transmissive screen 13 refers to the angle in the horizontal direction with respect to the incident direction of the light incident on the transmissive screen 13
  • the vertical angle refers to the vertical direction relative to the incident direction of the light incident on the transmissive screen 13. The angle.
  • FIG. 10 shows that the intensity of the light gradually decreases as the light incident on the transmission screen 13 diffuses in the left-right direction. Specifically, the diffused light diffused by about ⁇ 15 degrees in the left-right direction from the incident direction of the light incident on the transmissive screen 13 becomes about half the brightness of the incident light in the incident direction.
  • FIG. 11 shows how the light incident on the transmission screen 13 of this embodiment is diffused in the vertical direction.
  • the light emitted from the transmissive screen 13 diffuses and travels at a suitable angle.
  • the image forming position has a suitable angle. Convergence progresses until.
  • FIG. 11 shows how light incident on the transmission screen 13 is diffused in the vertical direction, but the same applies to the diffusion in the horizontal direction.
  • the light reflecting optical element 2 of the present embodiment is disposed with an inclination so that the near side is slightly lowered with respect to the light transmissive top plate 4.
  • the optimum light incident angle in the vertical direction is 45 degrees
  • the optimum human gaze direction is slightly lower than the horizontal (direction parallel to the ground). (Specifically, a direction 15 to 40 degrees below the horizontal). That is, when the light reflecting optical element 2 is horizontally arranged on the ground, the observer's line-of-sight angle is 45 degrees downward from the horizontal direction, which is further below the optimum line-of-sight direction.
  • the observer's line-of-sight angle is adjusted to be 15 to 40 degrees downward from the horizontal direction.
  • the direction of the line of sight when observing the spatial image 3 and the direction of the line of sight other than when observing the spatial image 3 are closer and less Since the desktop work can be done by moving, physical fatigue can be reduced. That is, the desktop system 10 can provide an environment in which the observation of the spatial video 3 and the desktop work can be compatible.
  • the light emitted from the projector 11 is designed to be projected with a slight inclination in the normal m direction of the transmission screen 13. This is because the optimum line-of-sight direction when the observer observes the spatial image 3 is matched with the direction in which the spatial image 3 can be observed brightest. That is, the light emitted from the transmissive screen 13 does not depend on the inclination angle of the screen surface of the transmissive screen 13 with respect to the surface F of the light reflecting optical element 2 (hereinafter, referred to as the vertical inclination). Therefore, the vertical inclination of the transmissive screen 13 can be adjusted to the optimum line-of-sight direction when the observer observes the spatial image 3.
  • the display unit 1 when a direct-view display 14 such as a liquid crystal display is used as the display unit 1, the normal direction of the display surface is the brightest direction, so that the transmissive screen 13 shown in FIG. To make the direction L1 of the light emitted from the brightest direction, the display surface of the direct-view display 14 must be further tilted downward. Accordingly, in this case, since the spatial image 3A formed by the direct-view display 14 is inclined upward as compared with the spatial image 3, the optimal viewing direction when the observer observes the spatial image 3A, and the space The direction in which the image 3A can be observed brightest does not match.
  • the display unit 1 using the projector 11 and the transmissive screen 13 is provided. Is preferred.
  • the light-transmitting top plate 4 Since the light-transmitting top plate 4 is arranged in parallel to the installation surface on which the desk is installed, first, it has a function as a top plate of a normal desk. At the same time, since the light-transmissive top plate 4 is formed of a black glass plate or plastic resin having a high light absorption rate, the function of eliminating the influence of reflection of external light on the surface of the light-reflecting optical element 2 (hereinafter referred to as “light-transmitting top plate 4”). The external light exclusion function).
  • FIG. 13 is a schematic diagram showing the intensity ratio of the reflected light OL2 of the light IL2 constituting the spatial image 3 and the external light OL1 reflected by the light reflecting optical element 2 in the absence of the light transmissive top plate 4, and FIG. FIG.
  • FIG. 10 is a schematic diagram showing the intensity ratio of the reflected light OL2 of the light IL2 constituting the spatial image 3 and the external light OL1 reflected by the light reflecting optical element 2 when there is the nature ceiling plate 4;
  • permeability of the light-transmissive top plate 4 of this Embodiment is about 2%, the value of the transmittance
  • the light-transmissive top plate 4 When the light-transmissive top plate 4 is not provided, as shown in FIG. 13, a part of the external light OL1 incident on the light reflecting optical element 2 is part of the surface of the light reflecting optical element 2 (the edge at the upper end of the light reflecting surface 23). Therefore, in addition to the light IL2 constituting the spatial image 3, the reflected light OL2 of the light reflecting optical element 2 of the external light OL1 also enters the observer's line of sight. For this reason, it becomes difficult for an observer to focus on the spatial image 3, and as a result, it becomes difficult to recognize the spatial image 3.
  • the external light OL1 incident on the light transmissive top plate 4 is transmitted through the light transmissive top plate 4, and further, a light reflecting optical element.
  • the light IL2 constituting the spatial image 3 reaching the observer's line of sight through the reflective optical element 2 and the light transmissive top plate 4 is assumed to be (all of the light incident on the light reflective optical element 2 is transmitted). ), 2% of the light IL1 emitted from the transmissive screen 13. This is because the outside light OL1 does not become the outside light OL2 that reaches the observer's line of sight unless it passes through the light transmissive top plate 4 twice, but the light IL2 emitted from the transmissive screen 13 is light transmissive top. This is because if the light passes through the plate 4 once, the light IL2 constituting the spatial image 3 is obtained.
  • the contrast ratio between the light IL2 and the surface reflected light OL2 constituting the spatial image 3 is increased by about 50 times compared with the case where the spatial image 3 is not employed.
  • the observer can easily recognize the spatial image 3.
  • the contrast of the light constituting the spatial image 3 with respect to the external light is improved.
  • the presence of the spatial image 3 can be increased.
  • the light-transmissive top plate 4 is subjected to an AR (anti-reflection) grade surface treatment that reduces surface reflection, the external light OL1 is reflected by the light-transmissive top plate 4 itself. Is also suppressed. Furthermore, since the light-transmissive top plate 4 is also subjected to MR grade surface treatment with high scratch resistance, it is also suitable for desktop work.
  • AR anti-reflection
  • the entire portion of the one-dot chain line below the light-transmissive top plate 4 shown in FIG. This is a countermeasure against stray light, and the influence of undesirable light (for example, light other than light constituting the spatial image 3 such as external light) caused by causes other than normal reflection and refraction of light emitted from the display unit 1 is affected. This is to eliminate it.
  • undesirable light for example, light other than light constituting the spatial image 3 such as external light
  • the configuration of the light reflecting optical element 2 is not limited to the configuration shown in FIG. 7, but is an optical that forms an entity (projected object) as a real image at a plane symmetric with respect to the light reflecting optical element. Any configuration may be used as long as it is an element.
  • the configuration of the light reflecting optical element shown in Patent Document 1 may be used.
  • FIG. 15 is an external perspective view of such a light reflecting optical element 5. More specifically, the light reflecting optical element 5 includes a plurality of holes 52 penetrating a predetermined base 51 in the thickness direction, and is a unit optical unit composed of two specular elements 54 a and 54 b orthogonal to the inner wall of each hole 52.
  • the element 53 is formed, and when light is transmitted from one surface direction to the other surface direction of the base 51 through the hole, the light is reflected once by the two mirror surface elements 54a and 54b. Also good. Further, as disclosed in Japanese Patent Application Laid-Open No. 58-21702, two sets of imaging elements each having a double-sided reflection band arranged in parallel are combined so that each reflection band is orthogonal to each other. It is good also as a light reflection optical element comprised so that it might become a grating
  • FIGS. 16 and 17 are top views showing the appearances of light reflecting optical elements 5A and 5B, which are modifications of the light reflecting optical element 5, respectively.
  • the light reflecting optical element 5A includes two unit optical elements 53 as one set, and each unit from the reference direction (specifically, the AA ′ direction shown in FIG. 6) in the surface of the light reflecting optical element 5A.
  • the optical element 53 is formed by giving a rotational angle deviation of ⁇ 10 degrees in the diagonal direction including the intersection of the specular elements 54a and 54b.
  • the peak value of the maximum luminance of the spatial image 3 is lowered, but the maximum luminance of the spatial image 3 is secured in the P1 and P2 directions that are slightly shifted in the left and right directions from the AA ′ direction.
  • the brightness of the spatial image 3 can be ensured with respect to the horizontal direction (the left-right direction in FIG. 6) of the light reflecting optical element 5A.
  • FIG. 18 is a diagram showing the light utilization efficiency of the light reflecting optical element 5A. More specifically, the light reflecting optical element 5A is reflected once by the mirror elements 54a and 54b of the unit optical element 53 and then transmitted through the light reflecting optical element 5A. It is a graph which shows the horizontal angle dependence of the ratio of light. Compared with the horizontal angle dependency of the transmittance of the light reflecting optical element 2 shown in FIG. 9, the brightness when the spatial image 3 is viewed in the design viewing direction S is reduced, but the design viewing Brightness maximum points appear in the line-of-sight directions shifted ⁇ 10 degrees in the left-right direction from the direction S, and the brightness of the spatial image 3 with respect to the horizontal direction (left-right direction in FIG. 6) relative to the light reflecting optical element 2. It can be seen that is secured.
  • FIG. 19 is a graph showing the light utilization efficiency of the light reflecting optical element 5A when the transmissive screen 13 having the horizontal angle dependency of FIG. 10 and the light reflecting optical element 5A shown in FIG. 18 are combined. 10 is displayed in comparison with the light utilization efficiency of the light reflecting optical element 2 in the case where the transmissive screen 13 having the horizontal angle dependency of FIG. 10 and the light reflecting optical element 2 shown in FIG. 9 are combined.
  • the bidirectional element shown by the solid line in FIG. 19 shows the case where the light reflecting optical element 5A is used
  • the unidirectional element shown by the dotted line shows the case where the light reflecting optical element 2 is used.
  • FIG. 19 shows that when the light reflecting optical element 5A is used, a spatial image 3 having a substantially constant brightness can be obtained in the line-of-sight direction within ⁇ 10 degrees from the design line-of-sight direction S in the left-right direction. Show.
  • the light reflecting optical element 5B includes three unit optical elements 53 as one set, and from the reference direction (specifically, the AA ′ direction shown in FIG. 6) in the surface of the light reflecting optical element 5B.
  • the unit optical element 53 is formed with a rotational angle deviation of 0 degrees and ⁇ 30 degrees in the diagonal direction including the intersection of the mirror elements 54a and 54b.
  • the brightness of the spatial image 3 can be secured further in the horizontal direction (left and right direction in FIG. 6) than when the light reflecting optical element 5A is used.
  • the light reflecting optical elements 5A and 5B are suitable for viewing a large spatial image 3 from a wide range.
  • the plane of the spatial video 3 (hereinafter referred to as the spatial video plane) is formed so as to be optimal in the observer's line-of-sight direction, but the elevation angle of the spatial video plane is the observer. Therefore, a mechanism for changing the elevation angle of the spatial image plane may be provided. When such a mechanism is provided, an effect of further reducing the physical fatigue of the observer can be expected.
  • FIG. 20 is a diagram showing the inclination of the spatial image 3 when the elevation angle of the spatial image plane is varied by varying the vertical tilt angle of the transmissive screen 13.
  • the transmissive screen 13 when the transmissive screen 13 is rotated in the clockwise A1 direction, the spatial image plane is rotated in the counterclockwise B1 direction.
  • the spatial image plane rotates in the clockwise B2 direction, so that the spatial image plane gradually falls down.
  • the elevation angle of the spatial image plane may be made variable in accordance with the viewer's preference.
  • the installation position of the light reflecting optical element 2 is fixed, but the inclination angle of the surface F of the light reflecting optical element 2 with respect to the light transmitting top plate 4 (inclination angle in the vertical direction) is set. It may be variable. In other words, it has been explained that the optimal human gaze direction is slightly below the horizontal (specifically, 15 to 40 degrees below the horizontal), but the sitting height and the distance from the space image plane to the eyes Since there are individual differences, it may be possible to adjust the line-of-sight direction optimal for each observer.
  • FIG. 21 is a diagram showing the position of the spatial image plane when the vertical inclination angle of the light reflecting optical element 2 is varied.
  • the spatial image plane when the light reflecting optical element 2 is rotated in the clockwise A1 direction, the spatial image plane is rotated in the clockwise C1 direction.
  • the spatial image plane rotates in the counterclockwise C2 direction. The position moves downward, and the downward line-of-sight direction has a gentle inclination.
  • FIG. 22 is a diagram illustrating a schematic configuration and a light traveling direction when a direct-view display 14 equipped with a peep prevention film is used as the display unit 1.
  • the direct-view display 14 is used as the display unit 1
  • the stray light in the light reflecting optical element 2 is reduced by sticking the peeping prevention film to the display surface, and the spatial image 3 is imaged. More light may be contributed.
  • the configuration of the display unit 1 is not limited to the direct view type display 14.
  • FIG. 23 is a side view showing a schematic configuration of the desktop display system 30 when such a sensor 6 is provided.
  • the sensor 6 is, for example, an infrared sensor provided immediately below the transmissive top plate 4 and detects the presence of an object in the vicinity region N of the spatial image 3.
  • a predetermined object for example, a hand when the observer performs an action of reaching for the spatial image 3
  • an image for controlling the image displayed on the display unit 1 A detection signal may be output to the control unit 7, and the video control unit 7 may control the content of the video in accordance with the detection signal.
  • the video control unit 7 may control the content of the video in accordance with the detection signal.
  • the desktop system can be applied to various desks, for example, OA desks, conference tables, window reception desks, guidance tables at stations, museums, and the like.
  • the spatial image itself is not accompanied by an entity (because the spatial image is displayed separately from the display unit that is the entity), it can also be used for evacuation guidance display and display in poor environments where contamination and theft are a concern. Is preferred.
  • the spatial image is visible only from a limited line-of-sight direction, it can also be applied to information display such as a device that needs to prevent peeping from the surroundings, such as a cash dispenser.

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  • Optics & Photonics (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

L'invention porte sur un système d'affichage de bureau (10) servant à afficher des images dans l'espace situé au-dessus d'un bureau. Le système d'affichage de bureau (10) comprend : une plaque supérieure transmettant la lumière (4) qui est positionnée parallèle à la surface du sol, en tant que plaque supérieure du bureau ; un dispositif d'affichage (1) qui est positionné dans l'espace situé au-dessous de la plaque supérieure transmettant la lumière (4) et affiche des images ; et un élément optique réfléchissant la lumière (2) qui est placé près et au-dessous de la plaque supérieure transmettant la lumière (4) et réfléchit la lumière provenant du dispositif d'affichage (1) vers l'espace situé au-dessus du bureau au-dessus de la plaque supérieure transmettant la lumière (4). L'élément optique réfléchissant la lumière (2) comprend une pluralité d'éléments optiques unitaires comprenant une première face réfléchissant la lumière et une seconde face réfléchissant la lumière perpendiculaire à la première face réfléchissant la lumière. La lumière provenant du dispositif d'affichage (1) est réfléchie une fois par chacune parmi la première face réfléchissant la lumière et la seconde face réfléchissant la lumière dans un élément optique unitaire prescrit pour former une image miroir correspondant à une image prescrite, en tant qu'image spatiale (3) dans l'espace situé au-dessus du bureau.
PCT/JP2010/071553 2010-12-02 2010-12-02 Système d'affichage de bureau Ceased WO2012073362A1 (fr)

Priority Applications (2)

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JP2014006479A (ja) * 2012-06-27 2014-01-16 Seiko Epson Corp 表示装置、撮影方法、および表示方法
JP2014067071A (ja) * 2012-09-10 2014-04-17 Askanet:Kk 空中タッチパネル
JP2015018038A (ja) * 2013-07-09 2015-01-29 株式会社アスカネット 像再生方法
JP2015079170A (ja) * 2013-10-18 2015-04-23 増田　麻言 走査型投影装置、および携帯型投影装置
JP2016006447A (ja) * 2014-06-20 2016-01-14 船井電機株式会社 画像表示装置
JP2016006564A (ja) * 2014-06-20 2016-01-14 船井電機株式会社 画像表示装置
JP2016009204A (ja) * 2014-06-20 2016-01-18 船井電機株式会社 画像表示装置
JP2016065940A (ja) * 2014-09-24 2016-04-28 日本電気硝子株式会社 光学結像部材、及び光学結像部材の製造方法
JP2016103028A (ja) * 2015-12-21 2016-06-02 増田　麻言 走査型投影装置、および携帯型投影装置
JP2016133577A (ja) * 2015-01-17 2016-07-25 有限会社オプトセラミックス 空中結像装置
WO2016199540A1 (fr) * 2015-06-11 2016-12-15 コニカミノルタ株式会社 Dispositif d'affichage d'image aérienne
JP2017156469A (ja) * 2016-02-29 2017-09-07 株式会社ニコン 結像光学系、光学系、表示装置、電子機器、表示方法およびプログラム
JP2017167224A (ja) * 2016-03-14 2017-09-21 大日本印刷株式会社 空間浮遊映像表示装置
JP2017207566A (ja) * 2016-05-17 2017-11-24 国立研究開発法人情報通信研究機構 立体ディスプレイ
JP2017207560A (ja) * 2016-05-16 2017-11-24 パナソニックＩｐマネジメント株式会社 空中表示装置及び建材
JP2018127884A (ja) * 2017-02-09 2018-08-16 株式会社福山コンサルタント 道路における逆走および誤進入防止装置、逆走および誤進入防止システムおよび逆走および誤進入防止方法
JP2020144237A (ja) * 2019-03-06 2020-09-10 国立大学法人電気通信大学 空中像形成装置
JP2021051744A (ja) * 2019-09-20 2021-04-01 コンパニー プラスチック オムニウム エスウCompagnie Plastic Omnium Se ユーザインターフェースを備えた車両部品
JP2021124524A (ja) * 2020-01-31 2021-08-30 住友電気工業株式会社 表示装置
JP2022132259A (ja) * 2021-02-27 2022-09-08 株式会社アーティフィス 生体反応物質付着防止部を有する情報入力装置

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WO2007116639A1 (fr) * 2006-03-23 2007-10-18 National Institute Of Information And Communications Technology Element de traitement d'image et affichage
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Publication number Priority date Publication date Assignee Title
JP2014006479A (ja) * 2012-06-27 2014-01-16 Seiko Epson Corp 表示装置、撮影方法、および表示方法
JP2014067071A (ja) * 2012-09-10 2014-04-17 Askanet:Kk 空中タッチパネル
JP2015018038A (ja) * 2013-07-09 2015-01-29 株式会社アスカネット 像再生方法
JP2015079170A (ja) * 2013-10-18 2015-04-23 増田　麻言 走査型投影装置、および携帯型投影装置
JP2016009204A (ja) * 2014-06-20 2016-01-18 船井電機株式会社 画像表示装置
JP2016006564A (ja) * 2014-06-20 2016-01-14 船井電機株式会社 画像表示装置
JP2016006447A (ja) * 2014-06-20 2016-01-14 船井電機株式会社 画像表示装置
JP2016065940A (ja) * 2014-09-24 2016-04-28 日本電気硝子株式会社 光学結像部材、及び光学結像部材の製造方法
JP2016133577A (ja) * 2015-01-17 2016-07-25 有限会社オプトセラミックス 空中結像装置
JPWO2016199540A1 (ja) * 2015-06-11 2018-03-29 コニカミノルタ株式会社 空中映像表示装置
WO2016199540A1 (fr) * 2015-06-11 2016-12-15 コニカミノルタ株式会社 Dispositif d'affichage d'image aérienne
JP2016103028A (ja) * 2015-12-21 2016-06-02 増田　麻言 走査型投影装置、および携帯型投影装置
JP2017156469A (ja) * 2016-02-29 2017-09-07 株式会社ニコン 結像光学系、光学系、表示装置、電子機器、表示方法およびプログラム
JP2017167224A (ja) * 2016-03-14 2017-09-21 大日本印刷株式会社 空間浮遊映像表示装置
JP2017207560A (ja) * 2016-05-16 2017-11-24 パナソニックＩｐマネジメント株式会社 空中表示装置及び建材
JP2017207566A (ja) * 2016-05-17 2017-11-24 国立研究開発法人情報通信研究機構 立体ディスプレイ
US10642064B2 (en) 2016-05-17 2020-05-05 National Institute Of Information And Communications Technology Three-dimensional display
JP2018127884A (ja) * 2017-02-09 2018-08-16 株式会社福山コンサルタント 道路における逆走および誤進入防止装置、逆走および誤進入防止システムおよび逆走および誤進入防止方法
JP2020144237A (ja) * 2019-03-06 2020-09-10 国立大学法人電気通信大学 空中像形成装置
JP7186438B2 (ja) 2019-03-06 2022-12-09 国立大学法人電気通信大学 空中像形成装置
JP2021051744A (ja) * 2019-09-20 2021-04-01 コンパニー プラスチック オムニウム エスウCompagnie Plastic Omnium Se ユーザインターフェースを備えた車両部品
JP7641489B2 (ja) 2019-09-20 2025-03-07 オーピーモビリティ エスイー ユーザインターフェースを備えた車両部品
JP2021124524A (ja) * 2020-01-31 2021-08-30 住友電気工業株式会社 表示装置
JP7272294B2 (ja) 2020-01-31 2023-05-12 住友電気工業株式会社 表示装置
JP2022132259A (ja) * 2021-02-27 2022-09-08 株式会社アーティフィス 生体反応物質付着防止部を有する情報入力装置

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