JP2011203411A - Stereoscopic image-viewing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a user to easily enjoy viewing of a stereoscopic image with an image displayed on a TV set or a personal computer by utilizing an inexpensive and simple appliance.SOLUTION: The stereoscopic image-viewing device includes: a left unit 80 having a first left mirror 18 and a second left mirror 20 arranged on a left optical axis 34, a left objective window 42 receiving an image for a left eye 12, and a left view window 56 made open in the direction of a left eye position; and a right unit 82 having a first right mirror 22 and a second right mirror 24 arranged on a right optical axis 36, a right objective window 44 receiving an image for a right eye 14, and a right view window 57 made open in the direction of a right eye position. An angle formed by the left optical axis 34 and the right optical axis 36 is increased or decreased, and then the left unit 80 and the right unit 82 are coupled by a joint that holds the formed angle in an optional state.

Description

  The present invention relates to a stereoscopic image appreciation device that allows a user to easily enjoy a stereoscopic image using a computer display, a television device, or the like.

  With the development of television receivers and image processing technologies that display high-definition images on a large screen, not only flat images but also three-dimensional image reproduction technologies have been developed one after another (see Patent Document 1). (See Patent Document 2) (See Patent Document 3).

JP 2008-233469 A JP 2008-249809 A Utility Model Registration No. 3009765

The known prior art has the following problems to be solved.
With the methods such as Patent Document 1 and Patent Document 2 described above, a fine and realistic stereoscopic image can be reproduced. However, a complicated original image must be generated to prepare an expensive playback device, which has hindered popularization. Moreover, although a simple apparatus like patent document 3 is developed, adjustment is needed in order to make it the state which can see a three-dimensional image. In addition, although it is well understood when actually used, it is necessary to adjust the eye position and line of sight variously until it can be recognized as a stereoscopic image, and if the posture is changed slightly during viewing, the stereoscopic image becomes invisible was there. Furthermore, there is a problem that there is a sense of incongruity because an image other than a stereoscopic image enters the field of view.
In order to solve the above-described problems, an object of the present invention is to provide a stereoscopic image appreciation device that allows a user to easily enjoy a stereoscopic image using a computer display, a television device, or the like.

The following configurations are means for solving the above-described problems.
<Configuration 1>
A left first mirror 18 and a left second mirror 20 which are arranged on the left optical axis 34 reaching the left eye position from the left eye image 12 and sequentially reflect the left eye image to the left eye position, and the left first mirror 18. A left unit 80 having a left objective window 42 for receiving the left-eye image 12 and a left viewing window 56 opened in the left-eye position direction of the left second mirror 20, and reaching the right-eye position from the right-eye image 14. The right eye image 14 is received by the right first mirror 22 and the right first mirror 22 which are disposed on the right optical axis 36 and sequentially reflect the right eye image 14 to guide the right eye position. A right unit 82 having a right objective window 44 and a right viewing window 57 opened in the direction of the right eye of the right second mirror 24, and increasing the angle between the left optical axis 34 and the right optical axis 36; Reduce or decrease In joint that holds the serial sandwich corners in any state, the three-dimensional image viewing apparatus characterized by that connecting the left unit 80 and the right unit 82.

<Configuration 2>
In the stereoscopic image viewing device according to Configuration 1, the joint is fixed to the left unit 80 at one end on the side close to and far from the image, and the other end is fixed to the right unit 82 at the other end. A three-dimensional image appreciation device characterized by being a telescopic joint that can be expanded and contracted by an external force and maintains the state when the external force is released.

<Configuration 3>
In the stereoscopic image viewing device according to Configuration 1 or 2, when the joint state is changed and the distance between the left viewing window 56 and the right viewing window 57 is changed, the left eye is moved from the left eye position through the left first mirror 18. The width of the left viewing window 56 and the right viewing window 57 is set to a width that does not cover the front of both eyes so that the right image 14 can be directly viewed from the right eye position through the right first mirror 22 at the same time. A stereoscopic image appreciation device, characterized by selecting an interval of.

<Configuration 4>
The stereoscopic image viewing apparatus according to any one of Configurations 1 to 3, wherein a hood 84 is provided to move the left eye 26 and the right eye 28 away from the left viewing window 56 and the right viewing window 57 by a certain distance. Appreciation device.

<Configuration 5>
In the stereoscopic image viewing device according to any one of Configurations 1 to 4, the left side cover 85 is provided on the left side surface of the left unit 80 to limit the field of view when the left eye window 12 is viewed from the left objective window 42. A right side cover 86 is provided on the right side surface of the right unit 82 to limit the field of view when the direction of the right eye image 14 is viewed from the right objective window 44. The left side cover 85 and the right side cover 86 limit the field of view. A stereoscopic image appreciation device characterized by being movably supported so that the range to be increased or decreased can be increased.

<Configuration 6>
5. The stereoscopic image appreciation device according to claim 1, wherein a clip that can be directly or indirectly attached to the head is fixed to one or both of the left unit 80 and the right unit 82. Image appreciation device.

<Effect of Configuration 1>
By connecting the left unit 80 and the right unit 82 with a joint and changing the angle between the left optical axis 34 and the right optical axis 36, the image for viewing with the left eye is outside the field of view of the right eye. The image for viewing with the right eye can be outside the field of view of the left eye. As a result, the stereoscopic image 59 can be viewed very naturally and simply using only the reflecting mirror.
<Effect of Configuration 2>
Adjustment is easy when using an expansion joint that can be extended and contracted by an external force and maintains the state when the external force is released.
<Effect of Configuration 3>
If the width of the left viewing window 56 and the right viewing window 57 and the distance between them are appropriately set, the field of view is not narrowed even if the angle between the left optical axis 34 and the right optical axis 36 is changed.
<Effect of Configuration 4>
By keeping the left eye 26 and the right eye 28 away from the left viewing window 56 and the right viewing window 57 by a certain distance, the field of view can be blocked so that unnecessary places inside the left unit 80 and the right unit 82 cannot be seen. .
<Effect of Configuration 5>
It is possible to block the field of view so that unnecessary objects on the left and right of the stereoscopic image 59 that can be seen from the left viewing window 56 and the right viewing window 57 cannot be seen.
<Effect of Configuration 6>
If a clip that can be directly or indirectly attached to the head is fixed to the left unit 80 or the right unit 82, a stereoscopic image can be viewed hands-free.

It is explanatory drawing which shows the relationship between the main body longitudinal cross-sectional view of Example 1, and an image. It is explanatory drawing explaining the effect | action of the joint of a unit. It is explanatory drawing which shows the effect | action at the time of large screen appreciation. It is explanatory drawing which shows the effect | action at the time of small screen appreciation. It is a perspective view which shows the actual use condition. 5 is a longitudinal sectional view showing a specific example of a universal joint 72. FIG. FIG. 10 is a longitudinal sectional view showing a stereoscopic image appreciation device of Example 5. It is explanatory drawing which shows the longitudinal cross-sectional view which shows the stereo image appreciation apparatus of Example 6, and the image. FIG. 10 is a longitudinal sectional view showing a stereoscopic image appreciation device of Example 7. FIG. 10 is a perspective view illustrating a stereoscopic image viewing apparatus according to an eighth embodiment.

  Hereinafter, embodiments of the present invention will be described in detail for each example.

FIG. 1 is an explanatory diagram illustrating a relationship between a main body longitudinal cross-sectional view of the first embodiment and an image.
In the figure, a left-eye image 12, a right-eye image 14, and a background frame image 16 are shown. These images are displayed on a computer display, a television display, a digital photo frame, a display of a portable terminal device, or the like. In order to create a stereoscopic image, a picture is taken in advance at the position of the left eye, and a left eye image 12 is obtained. Next, a picture is taken at the position of the right eye or a little further to the right to obtain the right eye image 14. Thereafter, as shown in the figure, the left-eye image 12 and the right-eye image 14 are arranged side by side and displayed on the display. When the left-eye image 12 is viewed with the left eye 26 and the right-eye image 14 is viewed with the right eye 28, a stereoscopic image can be seen.

  In the illustrated embodiment, the left first mirror 18 and the left second mirror 20 are accommodated in a box-shaped left unit 80 provided with a left viewing window 56 and a left objective window 42. The left eye 26 can see the left-eye image 12 through an optical path such as a broken line. Further, the right first mirror 22 and the right second mirror 24 were accommodated in a box-shaped left unit 80 provided with a right viewing window 57 and a right objective window 44. The right eye 28 can see the right-eye image 14 through an optical path like a broken line. The central axis of the optical path is indicated by a solid arrow, and will be referred to as the left optical axis 34 and the right optical axis 36.

  Actually, the left optical axis 34 and the right optical axis 36 are perpendicular to the surface on which the image of the left-eye image 12 or the right-eye image 14 is displayed. The image 12 and the right-eye image 14 are front views perpendicular to the optical axis, and the stereoscopic image viewing apparatus 10 is a cross-sectional view cut along a plane including the optical axis. Actually, the stereoscopic image viewing apparatus 10 is used in the state shown in FIG.

  Both the left-eye image 12 and the right-eye image 14 are flat images, but a stereoscopic image can be reproduced using the optical illusion. Even if the entire image shown in the figure on the display is viewed with both eyes, it does not look like a stereoscopic image. Only the left-eye image 12 is seen with the left eye, and only the right-eye image 14 is seen with the right eye.

  A method using an optical system using a lens is known. However, when a digital image is enlarged by a lens or the like, dots (pixels) are seen and the image becomes unnatural. On the other hand, since the optical system using two reflecting mirrors does not form an image as in the present invention, a natural image can be enjoyed regardless of the position of the eyes. Further, by widening the left viewing window 56 and the right viewing window 57 as in the present invention, it is possible to enjoy the stereoscopic image 59 (FIG. 1B) without any problem even with the glasses attached.

  However, this stereoscopic image appreciation device 10 has a very wide viewing angle as shown by the broken line in the figure. Therefore, the left eye 26 only needs to see the left-eye image 12, but a part of the right-eye image 14 can also be seen as shown in FIG. When viewing a stereoscopic image using an illusion, a sense of incongruity occurs when an image other than the stereoscopic image appears sideways. Moreover, when many images are seen, it may be searched which image is a three-dimensional image.

  Here, the left viewing window 56 and the right viewing window 57 are made close to pinholes, and the left objective window 42 and the right objective window 44 are set to a minimum size that allows the left-eye image 12 and the right-eye image 14 to be seen. Then, the left eye image 12 can be seen only by the left eye 26 and the right eye image 14 can be seen only by the right eye 28, so that a good stereoscopic image 59 can be viewed.

  However, if the left viewing window 56 and the right viewing window 57 are windows close to pinholes, fine adjustment is required for each user, which is very difficult to use. Further, it is necessary to set the distance and positional relationship between the left objective window 42 and the right objective window 44 and the image accurately according to the conditions, and it takes time and effort for setting, and the optimum viewing position is limited to the center. People can not enjoy the same screen.

  When the size of the left objective window 42, the right objective window 44, the left viewing window 56, and the right viewing window 57 is set wide enough with a margin, a stereoscopic image 59 can be seen in the center as shown in FIG. A portion of the left-eye image 12 and the right-eye image 14 that are not three-dimensional are clearly visible on the left and right. That is, in the case of the right optical system, in addition to the right-eye image 14 existing in the width indicated by the thick dashed-dotted arrow P in the figure, the left-eye image 12 existing in the width indicated by the left arrow Q, and the right-eye image The background frame image 16 and the like existing in the width indicated by the arrow R on the right side of the image 14 can be seen. This is a problem inherent to an optical system using a mirror rather than an optical system using a lens.

  Therefore, in the present invention, as shown in FIG. 1A, the left angle between the left optical axis 34 of the left optical system and the right optical axis 36 of the right optical system can be increased or decreased so that the left angle can be increased or decreased. The unit 80 and the right unit 82 were connected by the objective side joint 76 and the interpersonal side joint 78. In this embodiment, the left unit 80 and the right unit 82 are connected at two locations, but may be connected at one location using a so-called universal joint.

FIG. 2 is an explanatory view for explaining the operation of the joint of the unit.
In the state shown in FIG. 1A, the image shown in FIG. 1B can be seen. Here, as shown in FIG. 2, the objective joint 76 is extended and the interpersonal joint 78 is bent to increase the angle between the left optical axis 34 of the left optical system and the right optical axis 36 of the right optical system to θ. It was. In this way, for example, when the image reflected by the right second mirror 24 from the right eye 28 is viewed, or when the background frame image 16 side is viewed directly from the right eye 28 through the right objective window 44, the left eye image 12 is viewed. The right optical axis 36 is inclined so as not to be able to. The same applies to the left optical axis 34 of the left optical system. Exactly the same effect as that obtained by providing the partition plate 54 of the above embodiment was obtained.

  Here, for example, it is conceivable that the inclination of the left second mirror 20 and the right second mirror 24, or the left first mirror 18 and the right first mirror 22 can be varied. Thus, the angle between the left optical axis 34 of the left optical system and the right optical axis 36 of the right optical system can be increased or decreased. However, in that case, the relationship between the size and position of the right objective window 44 becomes worse. In addition, if the user tries to view the image while adjusting the angles of the left and right mirrors, the adjustment is very time-consuming. Several images are reflected on the mirror, and it becomes extremely difficult to move the mirror so that the left and right images overlap.

  On the other hand, as in this embodiment, the left and right optical systems are accommodated independently, and the left eye image 12 and the right eye image 14 can be viewed only through the left objective window 42 and the right objective window 44. If the unit 80 and the right unit 82 are respectively independent boxes and are connected by the joint as described above, the optimum conditions can be set very easily.

  In addition, the left viewing window 56 and the right viewing window 57 can be set to have a wide width to the extent that both adults and children are not inconvenienced. Accordingly, the field of view can be widened. When the state shown in FIG. 1 (a) is changed to the state shown in FIG. 2 (a), the left viewing window 56 and the right viewing window 57 approach each other, but at this time, the walls of the left unit 80 and the right unit 82 do not disturb the view. In addition, it is preferable to set the left and right viewing windows 56 and 57 so that the both ends of the left viewing window 56 and the right viewing window 57 are wider than the width of the left and right eyes. At this time, as shown in FIG. 2B, the background frame image 16 and the like can be seen on the left and right of the stereoscopic image 59, but the left-eye image 12 and the right-eye image 14 cannot be directly seen by the eyes.

  That is, the stereoscopic image appreciation device of the present invention is such that the left unit 80 and the right unit 82 are separately provided and both are connected. The left unit 80 includes a left first mirror 18 and a left second mirror 20. The left first mirror 18 and the left second mirror 20 are disposed on the left optical axis 34 reaching the left eye position from the left eye image 12 and are for sequentially reflecting the left eye image to the left eye position. Use only mirrors and no lenses. The left unit 80 includes a left objective window 42 that receives the left-eye image 12 in the left first mirror 18 and a left viewing window 56 that is opened in the direction of the left eye position of the left second mirror 20. The left objective window 42 and the left viewing window 56 have a sufficiently large area that does not block the left-eye image 12 in the left optical system.

  Similarly, the right unit 82 includes the right first mirror 22 and the right second mirror 24. The right first mirror 22 and the right second mirror 24 are disposed on the right optical axis 36 that reaches the right eye position from the right eye image 14, and are for sequentially reflecting the right eye image 14 to the right eye position. . The right unit 82 is provided with a right objective window 44 that receives the right-eye image 14 in the right first mirror 22 and a right viewing window 57 that is opened in the right eye position direction of the right second mirror 24. The right objective window 44 and the right viewing window 57 have a sufficiently large area that does not block the right-eye image 14 in the right optical system.

  Here, the left unit 80 and the right unit 82 are connected with a joint that increases or decreases the angle between the left optical axis 34 and the right optical axis 36 and maintains the angle between the left optical axis 34 and the right optical axis 36 in an arbitrary state. Holding the sandwiched angle in an arbitrary state means that it can be held by a joint that is plastically deformed, a position adjusted by a screw or a click stop, for example.

  In addition, as in the embodiment of FIG. 1, the above-described joint has one end fixed to the left unit 80 and the other end fixed to the right unit 82 at at least two places near and far from the image. Good. The structure may be, for example, an expansion joint that can be expanded and contracted by an external force and maintains the state when the external force is released.

  Further, even if the joint state is changed and the distance between the left viewing window 56 and the right viewing window 57 is changed, the left eye image 12 is directly viewed from the left eye position through the left first mirror 18 and at the same time the right eye position is The width of the left viewing window 56 and the right viewing window 57 may be selected to be sufficiently wide so that the 22 right eye image 14 can be directly viewed through the first mirror 22.

  According to the above embodiment, by expanding the optical axis on the objective side to the outside, the image for viewing with the left eye is out of the field of view of the right eye, and the image for viewing with the right eye is Was out of sight. As a result, a stereoscopic image can be viewed very naturally and easily using only a reflecting mirror. Further, since only the reflecting mirror is used, the image is not blurred even if the distance from the image displayed on the display fluctuates. Therefore, there is no strict restriction on the distance from the display.

  Even if you are not facing the image, you can easily enjoy a stereoscopic image by adjusting the field of view as described above. Even if the distance between the left eye and the left image is not equal to the distance between the right eye and the right image, the image can be directly viewed clearly. That is, a plurality of people can enjoy a stereoscopic image using one display.

FIG. 3 is an explanatory diagram showing a state of the stereoscopic image appreciation device when appreciating a large screen.
The stereoscopic image viewing apparatus having the above configuration has a feature that it is difficult to be restricted by the viewing position and viewing angle with respect to the display. Therefore, an image displayed on a small-sized display and an image displayed on a large-sized display can be freely viewed by adjusting the field of view. In the example of FIG. 3, the distance from the image is increased until the left-eye image 12 and the right-eye image 14 enter the field of view of the left-eye optical system and the right-eye optical system. The angle between the optical axes of the left and right optical systems is increased. Thus, the left-eye image 12 can be viewed directly with the left eye, the right-eye image 14 can be directly viewed with the right eye, and a large-screen stereoscopic image can be viewed. Thus, the stereoscopic image 59 can be viewed in the state shown in FIG.

FIG. 4 is an explanatory diagram showing a state of the stereoscopic image appreciation device when appreciating a small screen.
In this embodiment, for example, an example will be described in which a left-eye image 12 and a right-eye image 14 are displayed very small on a portable display. At this time, the optical axis of the optical system of the left and right units is decreased to be negative. That is, as shown in FIG. 18, the joint state is changed so that the optical axes of the optical systems of the left and right units intersect. Thereby, the left-eye image 12 can be directly viewed with the left eye, and the right-eye image 14 can be directly viewed with the right eye, so that a small-screen stereoscopic image can be viewed.

  Even in this case, the field of view can be adjusted to the state shown in FIG. Accordingly, it is possible to start viewing the stereoscopic image 59 easily and naturally. Conventionally, both eyes have the same image in the field of view, and it took time to adjust to a state of viewing a stereoscopic image, and the adjustment was easy to go wrong. In the present invention, there is a great advantage that viewing of a stereoscopic image can be started in a very short time. FIG. 5 is a perspective view showing the actual use state.

FIG. 6 is a longitudinal sectional view showing a specific example of the universal joint 72.
For example, the universal joint 72 can be composed of a band 73 and a sleeve 74 as shown in the figure. The left unit 80 and the right unit 82 can be manufactured from plastic or paper. The universal joint 72 is preferably made of elastic plastic. The surface where the band 73 and the sleeve 74 are in contact is provided with irregularities for making slippage worse. The sleeve 74 holds the band 73 with elasticity. Therefore, when a little force is applied, the band 73 can be inserted and removed in the arrow direction. Thereby, the above-mentioned sandwiched corner can be held in an arbitrary state.

FIG. 7 is a vertical cross-sectional view illustrating the stereoscopic image viewing apparatus of the fifth embodiment.
The left unit 80 and the right unit 82 shown in the figure are provided with a hood 84 that keeps the left eye 26 and the right eye 28 away from the left viewing window 56 and the right viewing window 57 by a certain distance. An enlarged view of this part is shown in circle A. In the case of the embodiments so far, for example, when the left eye 26 is brought close to the left viewing window 56, unnecessary images appearing in the peripheral portions of the left second mirror 20 and the left first mirror 18 enter the eye. It is an image of the structure inside the left unit 80. By keeping the left eye 26 and the right eye 28 away from the left viewing window 56 and the right viewing window 57 by a certain distance, the field of view can be blocked so that unnecessary places inside the left unit 80 and the right unit 82 cannot be seen. .

FIG. 8 is a longitudinal sectional view showing the stereoscopic image viewing apparatus of the sixth embodiment and an explanatory diagram of images that can be seen.
A left side cover 85 and a right side cover 86 are provided on the side surfaces of the left unit 80 and the right unit 82 in FIG. The left side cover 85 is movably supported on the side surface of the left unit 80 via a hinge 87. Further, the hinge 87 is movably supported on the side surface of the right unit 82 via the hinge 88. These are for limiting the outside of the relaxation visible from the stereoscopic image viewing apparatus 10.

  That is, the left side cover 85 is provided on the left side surface of the left unit 80 to limit the field of view when the direction of the left eye image 12 is viewed from the left objective window 42. A right side cover 86 is provided on the right side surface of the right unit 82 to limit the field of view when the direction of the right eye image 14 is viewed from the right objective window 44. The hinge 87 and the hinge 88 are used to increase or decrease the range that limits the field of view of the left side cover 85 and the right side cover 86.

  With this structure, the field of view can be blocked so that the left and right useless objects of the stereoscopic image 59 that are visible from the left and right viewing windows 56 and 57 are not visible. As a result, as shown in FIG. 8B, the field of view can be limited to the width of the stereoscopic image. Adjustment of the left side cover 85 and the right side cover 86 is very simple. The structure is also simple. The cover length can be short, so it won't get in the way. In this way, it is possible to appreciate a good stereoscopic image while limiting the field of view very reasonably.

FIG. 9 is a vertical cross-sectional view illustrating the stereoscopic image viewing apparatus of the seventh embodiment.
The function of the apparatus of this embodiment is the same as that of the sixth embodiment. In Example 6, a side cover such as a door provided with a hinge was used. In the seventh embodiment, a pull-out slide panel 90 is used. The pair of left and right slide panels 90 are accommodated entirely inside the outer walls of the left unit 80 and the right unit 82. Accordingly, the field of view can be blocked so that the left and right unnecessary objects can not be seen by being pulled out when necessary.

  Since the slide panel 90 is movably supported, the range for limiting the field of view can be increased or decreased by the amount of pull-out. It can also be stored when not needed. In addition, in this embodiment, both the objective side joint 76 and the interpersonal side joint 78 are configured so as to be accommodated almost entirely inside the left unit 80 and the right unit 82. Therefore, as a whole, it is possible to realize a design with a very clean appearance.

10A is a perspective view of the sun visor, FIG. 10B is a perspective view showing the stereoscopic image viewing apparatus of Example 8, and FIG. 10C is a side view of the main part in use.
The device of the present invention is lightweight and small in any of the embodiments, and no strictness is required for the distance between the viewing window and the eyes. A wide field of view can be secured even with the naked eye or wearing glasses. In addition, a plurality of users can appreciate a stereoscopic image displayed on the same display. Therefore, if the method of supporting the device is further improved, it becomes easier to use. In this embodiment, this requirement is realized, and a clip that can be directly or indirectly attached to the head is fixed. The clip preferably has a structure that can be easily fixed to a hat, a sun visor, a headset, or the like. Further, the clip may be integrated with a headset to which headphones are attached.

  A clip 92 is provided on the left unit 80 or the right unit 82 shown in FIG. The clip 92 can be fixed by, for example, elasticity to the heel portion of the sun visor 94 worn by the user. In the illustrated example, the clip 92 is fixed to both the left unit 80 and the right unit 82. When the clip 92 is fixed to the sun visor 94, the angle θ between the optical axes of the left unit 80 and the right unit 82 may be optimally adjusted. At the same time, as shown in (c), the distance D between the eyes and the viewing window may be optimized. After that, you can view stereoscopic images in a hands-free manner.

10 stereoscopic image viewing device 12 left eye image 14 right eye image 16 background frame image 18 left first mirror 20 left second mirror 22 right first mirror 24 right second mirror 26 left eye 28 right eye 34 left optical axis 36 right optical axis 42 Left objective window 44 Right objective window 56 Left observation window 57 Right observation window 59 Stereoscopic image 72 Universal joint 73 Band 74 Sleeve 76 Objective side joint 78 Interpersonal joint 80 Left unit 82 Right unit 84 Hood 85 Left side cover 86 Right side cover 87 Hinge 88 Hinge 90 Slide panel 92 Clip 94 Sun visor

Claims (6)

A left first mirror 18 and a left second mirror 20 which are arranged on the left optical axis 34 reaching the left eye position from the left eye image 12 and sequentially reflect the left eye image to the left eye position, and the left first mirror 18. A left unit 80 having a left objective window 42 for receiving the left-eye image 12 and a left viewing window 56 opened in the left-eye position direction of the left second mirror 20;
A right first mirror 22 and a right second mirror 24 which are arranged on the right optical axis 36 reaching the right eye position from the right eye image 14 and sequentially reflect the right eye image 14 to the right eye position, and the right first mirror. A right unit 82 having a right objective window 44 for receiving the right-eye image 14 and a right viewing window 57 opened in the right-eye position direction of the right second mirror 24;
The left unit 80 and the right unit 82 are connected by a joint that increases or decreases the angle between the left optical axis 34 and the right optical axis 36 and holds the sandwiched angle in an arbitrary state. 3D image appreciation device. The stereoscopic image appreciation device according to claim 1,
When the joint is at least one location near and far from the image, one end is fixed to the left unit 80 and the other end is fixed to the right unit 82, and the external force can be expanded and contracted by an external force. A three-dimensional image appreciation device characterized by being an expansion / contraction joint that maintains this state. The stereoscopic image appreciation device according to claim 1 or 2,
When the distance between the left viewing window 56 and the right viewing window 57 is changed by changing the state of the joint, the left eye image 12 is directly viewed from the left eye position through the left first mirror 18 and simultaneously the right eye position from the right eye position. Stereoscopic image viewing characterized in that the width of the left viewing window 56 and the right viewing window 57 and the interval between them are selected so that the front of both eyes is not covered so that the right-eye image 14 can be directly viewed through one mirror 22. apparatus. The stereoscopic image appreciation device according to any one of claims 1 to 3,
3. A stereoscopic image viewing apparatus, comprising a hood 84 that keeps the left eye 26 and the right eye 28 away from the left viewing window 56 and the right viewing window 57 by a certain distance. The stereoscopic image appreciation device according to any one of claims 1 to 4,
A left side cover 85 is provided on the left side surface of the left unit 80 to limit the field of view when viewing the direction 12 of the left eye image from the left objective window 42, and the right eye image from the right objective window 44 is provided on the right side surface of the right unit 82. A right side cover 86 that restricts the field of view when viewed in 14 directions is provided, and the left side cover 85 and the right side cover 86 are movably supported so that the range that restricts the field of view can be increased or decreased. 3D image appreciation device. The stereoscopic image appreciation device according to any one of claims 1 to 4,
A stereoscopic image appreciation device, wherein a clip that can be directly or indirectly attached to the head is fixed to one or both of the left unit 80 and the right unit 82.

Images