JP2018151459A - Stereoscopic vision device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stereoscopic stereoscopic device capable of visually recognizing a stereoscopic image which reduces congestion inconsistency while reducing eye strain and 3D motion sickness of a user. A stereo stereoscopic device 10 that allows a user to visually recognize a stereoscopic image using a plurality of images displayed on a display screen of a mobile terminal 20 is installed with the mobile terminal 20 with a display screen 21 facing downward. The mobile terminal mounting unit 13, the lens unit 12 that magnifies the stereoscopic image visually recognized by the user, and the plurality of images displayed on the display screen 21 of the mounted mobile terminal 20 are calculated from the distance from the lens unit 12. A plurality of virtual stereoscopic images that are visually recognized by the user are generated by generating virtual images so that a plurality of virtual images are overlapped in the depth direction of the user's line of sight when the difference in the adjustment power of the user's eyes 100 that is equal to or less than a predetermined value. The mirror groups 111 and 112 are provided. [Selection diagram] Figure 1

Description

  The present invention relates to a stereo stereoscopic apparatus that realizes stereoscopic viewing with reduced congestion adjustment contradiction.

  Conventionally, a virtual reality (VR) device using stereo stereoscopic vision such as a head mounted display (HMD) is commercially available. In recent years, a simple and inexpensive stereo stereoscopic device using a mobile terminal such as a smartphone or a tablet as a display device is also commercially available.

  Stereo stereoscopic devices using widely used devices such as mobile terminals can be used easily, can be reduced in cost, and have an infrastructure for distributing content such as applications and videos. There are many advantages such as being easy to appeal to users, and it is considered to play an important role in spreading the VR experience widely to users.

Kurt Akeley, Simon J. Watt, Ahna Reza Girshick, Martin S. Banks, “A Stereo Display Prototype with Multiple Focal Distances” Xinda Hu, Hong Hua, “Design and Assessment of a Depth-Fused Multi-Focal-Plane Display Prototype” JOURNAL OF DISPLAY TECHNOLOGY, VOL. 10, NO. 4, APRIL 2014

  When performing stereo stereoscopic viewing, convergence adjustment and focus adjustment are performed by linking with the user's eyes. When using the stereo stereoscopic VR device described above, the display target is perceived at a depth position different from the display surface of the display device by convergence adjustment, and the axes of both eyes are adjusted according to the depth distance to the position. It is matched. On the other hand, in the focus adjustment, the shape of the eye lens (crystal lens) is changed so that the focus is on the display surface.

  As described above, in many existing VR devices, there is a contradiction in the depth distance between the display target and the display surface between the convergence adjustment system and the focus adjustment system in the user's eye when performing stereo stereoscopic viewing. This phenomenon causes eyestrain and 3D sickness, which hinders the spread of stereo stereoscopic experiences such as restrictions on the use of HMD for children.

  In order to solve this problem, according to the content creation guidelines for stereoscopic vision, the parallax angle corresponding to the range in which the display object is moved back and forth in the depth direction in stereoscopic vision (the display surface when the left and right human eyes are used as a reference) And the angle difference between the display objects) is set to be 1 degree or less. However, when creating stereoscopic content based on this rule, there is a problem in that it is impossible to reproduce a short range (within 2 m to 3 m) from a user who is most utilized for focus adjustment.

  Also, in order to resolve the contradiction between the convergence adjustment system and the focus adjustment system, (1) a technology that reproduces the light from the display object in the direction of the light, not as a point light source, and (2) the distance from the user to the display surface Technology that reproduces stereoscopic images using (3) technology that physically overlays the display surface in the depth direction has been developed. Examples of using the technique (1) include holography using an interference phenomenon and a tensor display that reproduces a light field. In addition, as a technique using the technique (2), there is an HMD that uses a lens whose focal length can be changed, or physically moves the display surface by a motor or the like. Further, as a technique using the technique (3), there is a stereoscopic display that constructs a voxel that is a three-dimensional version of a pixel or uses a multi-layer structure in which a plurality of layers are overlapped.

  However, in order to use these technologies, special equipment such as a laser light source and transmissive liquid crystal is required, a heavy calculation process such as tensor calculation is required, or motors and lenses are controlled. Therefore, there is a problem that it is difficult to apply to a simple stereoscopic apparatus using a mobile terminal due to the difficulty in downsizing due to the configuration.

  The present invention has been made in view of the above circumstances, and provides a stereo stereoscopic device capable of reproducing a stereoscopic image with reduced eye strain and 3D sickness by reducing congestion adjustment contradiction. The purpose is to do.

  In order to solve the above-described problems, a stereo stereoscopic device according to the present invention is a stereo stereoscopic device that displays a plurality of images by dividing a display surface of a display device having a single display surface and allows a user to visually recognize a stereoscopic image. In the apparatus, the mounting unit of the display device, a lens unit for enlarging an image visually recognized by the user, and the adjustment power of the user's eye calculated from a distance from the lens unit with respect to a plurality of images of the display device. And two or more mirrors that generate a stereoscopic image by generating a plurality of virtual images overlapping in the depth direction of the user's line of sight in a state where the difference is equal to or less than a predetermined value.

  According to the stereo stereoscopic device of the present invention, it is possible to reproduce a stereoscopic image with reduced eye strain and 3D sickness by reducing congestion adjustment contradiction.

It is a side view which shows the structure of the stereo stereoscopic device by one Embodiment of this invention. It is explanatory drawing which shows the state which visually recognizes a stereo image using a multilayer structure. It is a side view which shows the structure of the conventional stereo stereoscopic vision apparatus of a multilayer structure. It is a side view which shows the structure of the stereo stereoscopic device by the other form of this invention. It is a side view which shows the structure of the stereo stereoscopic device by the other form of this invention.

  As a technique used in a stereo stereoscopic device using the mobile terminal of the present invention, a multilayer structure that allows a user to visually recognize a stereoscopic image using a plurality of images will be described.

  When making a user visually recognize a stereoscopic image using a multi-layer structure, as shown in FIG. 2, a plurality of two-dimensional image information composed of two-dimensional image information at positions where the distance from the user's eye 100 is different. Layers (first layer 101, second layer 102, and third layer 103) are arranged. The first layer 101 is image information of the front part of the display object having a depth, the third layer 103 is image information of the rear part of the display object, and the second layer 102 is the first layer 101. And image information of an intermediate portion between the first layer 103 and the third layer 103.

  The user can recognize the virtual image 110 of the stereoscopic image to be displayed by visually recognizing the first layer 101 to the third layer 103 in an overlapping state. At that time, the difference in the adjustment power of the user's eye 100 calculated by the reciprocal of the distance from the user's eye 100 to each layer is such that the positional relationship between the display target and each layer is within 0.3D (diopter) or less. Previous research has confirmed that by arranging each layer at an interval of 0.6D, a stereoscopic effect with reduced congestion adjustment contradiction can be obtained. For example, when the adjustment force calculated from the distance from the user's eye 100 to the second layer 102 is 1D (= 1 m), the distance to the first layer 101 is 1.6 D (= 62.5 cm). The distance to the third layer 103 is set to 0.4D (= 2.5 m), and the display target is displayed on a layer whose depth distance is within 0.3D before and after the layer, so that the user appropriately sets the display target as a stereoscopic image. Can be recognized.

  The case where this multilayer technology is used for a stereo stereoscopic device using a mobile terminal will be described with reference to FIG.

  A stereo stereoscopic device 200 shown in FIG. 3 uses a general-purpose smartphone 300 as a mobile terminal, and generates a main body 210 that generates a virtual image of a stereoscopic image and a virtual image of the stereoscopic image generated in the main body 210. And a lens unit 220 for enlarging and visually recognizing the user. On the upper part of the main body part 210, there is a smartphone mounting part 230 for installing the smartphone 300 with the display screen 310 facing down. The lens unit 220 is installed so that the line-of-sight direction of the visually recognizing user intersects the downward direction that is the display direction of the display screen 310 of the smartphone 300. In the present embodiment, the viewing direction of the user and the display direction of the display screen 310 are configured to intersect at 90 °. Moreover, although the direction of the smart phone 300 is demonstrated as an example as a downward direction, if the whole apparatus rotates, a direction will not necessarily be downward.

  The smartphone 300 has a one-plane display screen 310. The display screen 310 includes a first image information 311 of a front portion of a display object having a depth and a center portion of the display object, depending on the installed application. The second image information 312 and the third image information 313 in the rear part of the display information are displayed side by side in different divided areas. These pieces of image information are displayed so as to be first image information 311, second image information 312, and third image information 313 in order from the lens unit 220 when the smartphone 300 is attached to the smartphone attachment unit 230. It is displayed on the screen 310.

  In the main body 210 of the stereo stereoscopic device 200, a first half mirror 211 installed in an oblique direction at a lower position of the first image information 311 in the display screen 310 of the smartphone 300 attached, and second image information. The second half mirror 212 installed in the oblique direction at the lower position of 312 and the full mirror 213 installed in the oblique direction at the lower position of the third image information 313 farthest from the lens unit 220.

  The first half mirror 211 is installed at an angle of approximately 45 ° with respect to the display screen 310 so as to reflect the first image information 311 and generate a virtual image on the user's line of sight from the lens unit 220. Similarly, the second half mirror 212 is installed at an angle of approximately 45 ° with respect to the display screen 310 so as to reflect the second image information 312 and generate a virtual image on the user's line of sight from the lens unit 220. . Similarly, the full mirror 213 is installed at an angle of approximately 45 ° with respect to the display screen 310 so as to reflect the third image information 313 and generate a virtual image on the user's line of sight from the lens unit 220.

  By configuring the stereoscopic device 200 in this way, when the user looks inside the main body 210 from the lens unit 220, the first half mirror 211 to the first half mirror 211 are arranged at a distance from the lens unit 220 to the first half mirror 211. A virtual image of the first image information 311 is recognized as the first layer 311a at a position separated by a distance x1 obtained by adding the distance to the image information 311.

  Similarly, the virtual image of the second image information 312 is located at a position separated by a distance x2 obtained by adding the distance from the second half mirror 212 to the second image information 312 to the distance from the lens unit 220 to the second half mirror 212. Is recognized as the second layer 312a.

  Similarly, a virtual image of the third image information 313 is formed as a third layer 313a at a position separated by a distance x3 obtained by adding the distance from the full mirror 213 to the third image information 313 to the distance from the lens unit 220 to the full mirror 213. Be recognized.

  And since the 1st layer 311a, the 2nd layer 312a, and the 3rd layer 313a are arrange | positioned so that it may overlap in a user's gaze direction, the user visually recognizes the front part of the display target object, the center part, and the back part. Thus, a virtual image of the stereoscopic image to be displayed can be recognized.

  In the case of the above-described stereo stereoscopic device 200, the difference (x2-x1) and (x3-x2) in the distance from the lens unit 220, which is the position of the user's eye 100 when used, to each layer is the shortest interval. However, this is the height of the virtual image before magnification by the lens unit 220.

  On the other hand, in order to obtain the above-described appropriate stereoscopic effect, the difference in the adjustment force of the user's eye 100 calculated from the distance from the lens unit 220 to each layer when magnified by the lens unit 220 is 0.6D. In order to make the following, each layer must be arranged at intervals of several mm in the state before enlargement.

  However, in the stereo stereoscopic device 200 using the smartphone 300 as described above, the interval between the layers cannot be set below the height of the virtual image. It is difficult to arrange them so that the distance is mm.

  Therefore, hereinafter, as an embodiment of the present invention, a stereo stereoscopic device capable of obtaining an appropriate stereoscopic effect using a smartphone as a display device will be described.

<Configuration of Stereoscopic Stereoscopic Device Using Mobile Terminal According to One Embodiment>
A configuration of a stereo stereoscopic device using a mobile terminal according to an embodiment of the present invention will be described with reference to FIG.

  The stereo stereoscopic device 10 according to the present embodiment is used by wearing the smartphone 20 as a mobile terminal, and is generated in the main body unit 11 that generates a virtual image of a stereoscopic image to be displayed, and in the main body unit 11. And a lens unit 12 for enlarging a virtual image of the stereoscopic image and allowing the user to visually recognize the stereoscopic image. On the upper part of the main body part 11, there is a smartphone mounting part 13 for installing the smartphone 20 with the display screen 21 facing down. The lens unit 12 is installed so that the visual line direction of the user who visually recognizes is 90 ° with respect to the downward direction that is the display direction of the display screen 21 of the smartphone 20.

  On the display screen 21 of the smartphone 20, depending on the installed application, the first image information 21-1 of the front part of the display object, the second image information 21-2 of the rear part of the display object, and the display The third image information 21-3 in the central part of the information is displayed in order from the area close to the lens unit 12 in order.

  In the main body 11 of the stereo stereoscopic device 10, a virtual image of the first image information 21-1 from the lens unit 12 is located at a lower position of the first image information 21-1 in the display screen 21 of the smartphone 20 attached. There is a first mirror group 111 that is installed for visual recognition. In addition, a second mirror group 112 is installed at the lower position of the second image information 21-2 in the display screen 21 so that the virtual image of the second image information 21-2 can be viewed from the lens unit 12. is there. In addition, a third full mirror 113 is provided at a position below the third image information 21-3 in the display screen 21 so that a virtual image of the third image information 21-3 can be viewed from the lens unit 12. .

  The first mirror group 111 includes a first full mirror 111a and a first half mirror 111b. The first full mirror 111a is installed in parallel to the display screen 21 at a position facing the first image information 21-1 in the display screen 21, and reflects the first image information 21-1. The first half mirror 111b reflects the first image information 21-1 reflected by the first full mirror 111a to generate a virtual image on the user's line of sight from the lens unit 12 and the first full mirror. It is installed at an angle of approximately 45 ° with respect to 111a.

  Similarly, the second mirror group 112 includes a second full mirror 112a and a second half mirror 112b. The second full mirror 112a is installed in parallel to the display screen 21 at a position facing the second image information 21-2 in the display screen 21, and reflects the second image information 21-2. The second half mirror 112b reflects the second image information 21-2 reflected by the second full mirror 112a to generate a virtual image on the user's line of sight from the lens unit 12 and the second full mirror. It is installed at an angle of approximately 45 ° with respect to 112a. Detailed installation positions of the first full mirror 111a and the second full mirror 112a will be described later.

  As in the case of the stereo stereoscopic device 200, the third full mirror 113 reflects the third image information 21-3 and generates a virtual image on the user's line of sight from the lens unit 12 with respect to the display screen 310. Installed at an angle of approximately 45 °.

  By configuring the stereo stereoscopic device 10 in this way, when the user looks inside the main body 11 from the lens unit 12, the first half mirror 111b to the first half mirror 111b are arranged at a distance from the lens unit 12 to the first half mirror 111b. The virtual image of the first image information is recognized as the first layer 21-1a at a position separated by the distance X1 obtained by adding the distance to the full mirror 111a and the distance from the first full mirror 111a to the first image information 21-1. The

  Similarly, the distance from the second half mirror 112b to the second full mirror 112a and the distance from the second full mirror 112a to the second image information 21-2 are added to the distance from the lens unit 12 to the second half mirror 112b. A virtual image of the second image information is recognized as the second layer 21-2a at a position separated by the distance X2.

  Further, the third image information 21-3 is located at a position separated by a distance X3 obtained by adding the distance from the third full mirror 113 to the third image information 21-3 to the distance from the lens unit 12 to the third full mirror 113. A virtual image is recognized as the third layer 21-3a.

  And since the 1st layer 21-1a, 2nd layer 21-2a, and 3rd layer 21-3a are arrange | positioned so that it may overlap in the depth direction of a user's eyes | visual_axis, a user is a front part of a display target object, center. The virtual image of the multilayer stereoscopic image of the display target can be recognized by visually recognizing the part and the rear part.

  At this time, the distances X1 and X2 can be adjusted by changing the position of the first full mirror 111a and the position of the second full mirror 112a, respectively. Using this, [adjustment force of the user's eye 100 calculated from the distance from the lens unit 12 to the first layer] and [adjustment of the user's eye 100 calculated from the distance from the lens unit 12 to the third layer] Force] and [the adjustment power of the user's eye 100 calculated from the distance from the lens unit 12 to the third layer] and [the user's eye calculated from the distance from the lens unit 12 to the second layer) The position of the first full mirror 111a and the second full mirror 112a is determined so that the difference from the adjustment force 100 becomes 0.6D or less so that an appropriate stereoscopic effect can be obtained. Become. This “adjustment force of the user's eye 100” is calculated by the reciprocal of the depth distance of each virtual image after magnification by the lens unit 12. In order to set the difference in the adjustment force of the user's eye 100 calculated from the depth distance of each virtual image after the magnification by the lens unit 12 to 0.6 D or less, the first layer is arranged such that the layers are arranged at intervals of several mm. The positions of the full mirror 111a and the second full mirror 112a are determined.

  According to the above embodiment, in a stereoscopic stereoscopic device using a smartphone as a display device, stereoscopic image display technology with a multi-layer structure is used to reduce user's eye strain and 3D sickness, A more accurate stereoscopic effect can be obtained by adjusting the virtual image positions of a plurality of pieces of image information used for stereoscopic display of a display object in combination with the half mirror. As a result, it is possible to realize natural stereo stereoscopic vision with less contradiction between the convergence adjustment and the focus adjustment. For example, by using the stereo stereoscopic device 10 according to the above-described embodiment as a virtual reality device, a user can watch a sport or watch a concert so that the user can watch in close proximity to a player or an artist in real time. In addition, natural stereoscopic vision is realized.

  In recent years, a virtual reality technology with an all-sky circumference with a viewing angle of 360 ° has been developed. However, when this technology is used, the depth reproducibility indicating the depth of a wide viewing angle is low. On the other hand, in the above-described embodiment, the depth reproducibility can be increased although the viewing angle is limited, and it is suitable for the purpose of viewing a specific display target.

  In addition, by using the stereoscopic stereoscopic device according to the above-described embodiment as an augmented reality (AR) device, the generated stereoscopic image can be superimposed on the real space and visually recognized by the user. For example, by superimposing a three-dimensional image of a virtual interior in a room that is a real space, the user can visually recognize natural image information as if the interior is actually placed in the room.

  Specifically, as shown in FIG. 5, a fourth half mirror 14 is installed in the main body 11 of the stereo stereoscopic device 10, and rays of the outside scene in the user's line of sight pass through the fourth half mirror 14. In addition, the multi-layer light beam due to the virtual image is reflected and presented to the user at the same time. At this time, by controlling the display target and the display position to be displayed in a multi-layer based on the imaging information photographed by the camera device 22 mounted on the smartphone 20, the three-dimensional image is displayed at a consistent depth position with the real space as the background. The user can visually recognize the state in which the images are superimposed.

  FIG. 5 shows an example in which the display target is superimposed on the outside scene by using the fourth half mirror 14, but the fourth half mirror 14 is a total reflection mirror, and the display target is superimposed on the image acquired by the camera device 22. Displaying on the display surface also functions as an AR device.

  In addition, a method for linearly changing the luminance between layers has been proposed as a method for reproducing the depth of pixels existing between the layers when the display target is divided and displayed on each layer. In the change, when the distance from the user's eyes to the display object becomes long and the focal distance becomes large, the characteristic that the blur width of the display object visually recognized by the user's eyes becomes large is not reflected. Therefore, in the above-described embodiment, by adding a luminance control unit that changes the luminance distribution of the virtual image of each image information in accordance with the distance from the user's eye (lens unit) to each layer, the linear luminance change. In addition, it is possible to make the user visually recognize a highly accurate stereoscopic image.

  In the above-described embodiment, when the reflectance of the first half mirror 111b and the second half mirror 112b when the reflectance of the full mirror is 1 is set as 0.5: 0.5 (transmittance 50%), the user Among the image information that constitutes the stereoscopic image that is visually recognized, the luminance of the second image information 21-2 is lowered. Specifically, if the luminance absorption rate by the half mirror is ignored, the luminance ratio of the first image information 21-1, the second image information 21-2, and the third image information 21-3 is 0.25: 0.125: 0.25. As a result, the luminance of the central portion that becomes the center of the stereoscopic image is lowered. This is because the second image information 21-2 transmitted through the second half mirror 112b and reflected by the second full mirror 112a is further transmitted through the first half mirror 111b and visually recognized by the user.

  Therefore, the second half mirror is configured such that the closer the lens portion 12 is, the higher the transmittance of the half mirror of the mirror group is, so that the reflectance of the first half mirror 111b is 0.25: 0.75 (transmittance 75%). The brightness ratio of the first image information 21-1, the second image information 21-2, and the third image information 21-3 by setting the reflectance of 112b: the transmittance as 0.5: 0.5 (transmittance 50%). However, it becomes 0.1875: 0.1875: 0.375, and it is possible to prevent the brightness of the central portion, which is the center of the stereoscopic image, from being reduced and to allow the user to visually recognize a more accurate stereoscopic image.

  Moreover, as shown in FIG. 4, in the stereo stereoscopic device 10 according to the above-described embodiment, among the three pieces of image information displayed on the display screen 21 of the smartphone 20, the lower position of the first image information 21-1 is displayed. 1st mirror group 111 which consists of the 1st full mirror 111a and the 1st half mirror 111b of reflectance: transmittance 0.5: 0.5 (transmittance 50%) is installed, and 2nd image information 21-2 Only the second half mirror 112b having a reflectivity: transmittance of 0.5: 0.5 (transmittance of 50%) may be provided at the lower position. At this time, the second half mirror 112b is installed at an angle of 45 ° with respect to the display screen 310 so that the second image information 21-2 is generated on the user's line of sight from the lens unit 220. With this configuration, the luminance ratio among the first image information 21-1, the second image information 21-2, and the third image information 21-3 is 0.25: 0.25: 0.25, and a balanced stereoscopic image is obtained. Information can be made visible.

  At this time, the distance from the lens unit 12 to the second layer 21-2a cannot be adjusted, but the first layer 21-1a is adjusted to be between the second layer 21-2a and the third layer 21-3a. By doing so, the diopter difference related to the distance from the lens unit 12 to each layer may be 0.6 D or less.

  Moreover, in any embodiment mentioned above, although the case where a three-dimensional image display was performed using three image information displayed on the smart phone was demonstrated, the number of image information is not limited to this, Two or A stereoscopic image display may be performed using four or more pieces of image information. As an example, two layers in the system of the optical element 111 and the system of the optical element 112 in FIG. 4, two layers of the optical element 111 and the optical element 113, or a configuration of three layers or more by increasing the system of the optical element 111, etc. Is also easily considered.

  In the above-described embodiments, the stereo stereoscopic device using a smartphone as the display device has been described. However, the display device may be configured using a tablet terminal, a mobile display, or the like.

DESCRIPTION OF SYMBOLS 10 Stereoscopic device 11 Main body part 12 Lens part 13 Smartphone mounting part (display apparatus mounting part)
20 Smartphone 21 Display Screen 21-1 First Image Information 21-1a First Layer 21-2 Second Image Information 21-2a Second Layer 21-3 Third Image Information 21-3a Third Layer 22 Camera Device 100 User's Eye 111 First mirror group 111a First full mirror 111b First half mirror 112 Second mirror group 112a Second full mirror 112b Second half mirror 113 Third full mirror

Claims (8)

In a stereo stereoscopic device that displays a plurality of images by dividing a display surface of a display device having a single display surface, and allows a user to visually recognize a stereoscopic image.
A mounting portion of the display device;
A lens unit for enlarging an image viewed by the user;
Generating, for a plurality of images of the display device, a virtual image so that a plurality of overlaps in a depth direction of the user's line of sight in a state where a difference in adjustment power of the user's eye calculated from a distance from the lens unit is a predetermined value or less; Two or more mirrors that generate a stereoscopic image with
A stereo stereoscopic apparatus comprising: The plurality of mirrors are arranged in parallel to the display surface at a position facing any one of the images and reflect the image, and reflect the image reflected by the full mirror to form a virtual image in the user's line-of-sight direction. The stereo stereoscopic device according to claim 1, further comprising: a half mirror installed so as to be generated. 3. The stereo according to claim 2, wherein the plurality of mirrors are installed at positions adjusted such that a difference in reciprocal of a depth distance of each virtual image after magnification by the lens unit is a predetermined value or less. Stereoscopic device. The stereo stereoscopic device according to claim 2, wherein the half mirror has a higher transmittance as it is closer to the lens unit. The mirror corresponding to the image at the position farthest from the lens unit is configured by a full mirror installed so as to reflect the image and generate a virtual image in the user's line-of-sight direction. 4. The stereo stereoscopic device according to claim 1. The plurality of mirrors are installed corresponding to a third image located at a position furthest from the lens unit and a third mirror image installed corresponding to the first image located closest to the lens unit. And a full mirror that generates a virtual image in the direction of the user's line of sight, and a second image that is installed corresponding to the second image between the first image and the third image and reflects the second image to the user's line of sight It consists of a half mirror that generates a virtual image in the direction,
The mirror group is installed in parallel to the display surface at a position facing the corresponding first image, reflects the first image, reflects the image reflected by the full mirror, and in the direction of the user's line of sight The stereo stereoscopic device according to claim 1, comprising a half mirror installed so as to generate a virtual image. An imaging information display unit that displays imaging information captured by a camera device mounted on a mobile terminal including the display device;
The imaging information superimposing unit that superimposes the stereoscopic image generated by the plurality of mirror groups so that the user visually recognizes the imaging information displayed on the imaging information display unit as a background. The stereo stereoscopic device according to any one of 1 to 6. 8. The luminance control unit according to claim 1, further comprising: a luminance control unit that changes a luminance distribution so as to reduce a blur width of each virtual image according to a distance from the lens unit to each virtual image. Stereo stereoscopic device.

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