JP2515908Y2 - Stereoscopic image display device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stereoscopic image display device, and more particularly to a stereoscopic image display device for a viewer to observe and appreciate a stereoscopic image while wearing polarized glasses.

[0002]

2. Description of the Related Art A conventional device for a viewer to observe and enjoy a stereoscopic image while wearing polarized glasses is disclosed in, for example, JP-A-47-24322. In this apparatus, as shown in FIG. 11, the respective images are projected from the projectors 107 and 108 onto the transmission screens 102 and 104 provided orthogonally to each other. The transmission screen 10
Each of the images projected on 2, 104 has a polarization filter 10
After passing through 3 and 105, the light is transmitted and reflected by the semi-transparent mirror 106, reaches the viewer wearing the polarized glasses 109 and 110, and is observed and viewed as a stereoscopic image.

[0003]

However, the transmission screen type projection apparatus has a problem in that it is unnecessarily large in size because it requires a projector. In addition, there was a problem that it was not intended for the general public because of the need to create positive slides, and because of labor and cost.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a stereoscopic image display device which can be miniaturized and can be manufactured easily and inexpensively.

[0005]

According to the present invention, the above-mentioned objects are achieved by the first original image supporting portion, the second original image supporting portion, the semi-transparent mirror, the first polarizing plate, and the second polarizing image. And a stereoscopic image display device having a plate.

The first original image supporting section supports the first original image so as to face the viewer. The first original image supporting portion can be composed of, for example, a plate-shaped member, but is not limited to this and may be any member as long as it can support the original image so as to face a predetermined direction. good.

The second original image supporting section supports the second original image so as to form an angle smaller than 180 degrees with the first original image. The second original image supporting portion can also be composed of, for example, the plate-shaped member, but may be any member as long as it can support the second original image so as to face a predetermined direction.

The semi-transparent mirror is arranged between the first original image supporting portion and the second original image supporting portion so as to form substantially the same angle with respect to the first original image and the second original image. . The semi-transparent mirror is semi-transparent and transmits the light from the first original image and reflects the light from the second original image.

According to the first aspect of the present invention, the first polarizing plate is disposed on the back surface of the semi-transparent mirror as viewed by a viewer and polarizes the light from the first original image in the first direction. The second polarizing plate is arranged in front of the second original image and polarizes the light from the second original image in the second direction. As a result, the intensity of light from the first original image and the intensity of light from the second original image become approximately 1: 1 and the brightness of the images of the first original image and the second original image becomes substantially the same. To explain this, in a relatively inexpensive semi-transparent mirror, the transmissivity is generally lower than the reflectivity, and according to a general device, an image formed by the transmitted light from the semi-transparent mirror is compared with an image formed by the reflected light. It gets dark. However, according to the first aspect of the present invention, the second polarizing plate for the second original image is provided in front of the second original image, while the first polarizing plate for the first original image is provided. Is provided on the back surface of the semi-transparent mirror. Therefore, when the first and second original images are illuminated almost uniformly, the illuminance of the first original image (because the intensity of light decreases each time it passes through the polarizing plate) is equal to the illuminance of the second original image. It becomes stronger in comparison. As a result, the reflected light from the first original image becomes stronger than the reflected light from the second original image, and the difference between the reflectance and the transmittance at the semi-transparent mirror is compensated. That is, the intensity ratio of the reflected light from the semi-transparent mirror and the transmitted light becomes approximately 1: 1 and the brightness of the images of the first original image and the second original image becomes substantially the same.

The first and second polarizing plates are preferably linear polarizing plates, and the first and second directions are preferably vertical and horizontal. Thereby, the first and second polarizing plates can be easily produced, and a large number of first and second polarizing plates can be cut out from one polarizing plate material.

When the dimensions of the first and second original images are relatively large, it is desirable to provide first and second light sources for irradiating the respective photographs. This makes it possible to illuminate the entire first and second original images with uniform brightness.

According to the second aspect of the present invention, the first polarizing plate is arranged in front of the first original image. Also in this second aspect, one light source or the first and second light sources for irradiating the first and second original images, respectively, can be used. However, in the case of using the one light source, a light source is provided closer to the first original image from the semi-transparent mirror, and when the first and second light sources are used, compared with the luminous intensity of the second light source. Increase the luminous intensity of the first light source. Thereby, the difference between the reflectance and the transmittance of the semi-transparent mirror is compensated.

When a single light source is used in the above, it is preferable that this light source is provided substantially above the semi-transparent mirror. This prevents the image of the light source from entering the viewer's eyes.

Further, in the case of the one light source, the light source approaches the first original image and separates from the second original image, and separates from the first original image and approaches the second original image. It is preferable to be able to move in the direction. Thereby, the illuminance of the first original image and the illuminance of the second original image can be finely adjusted, and the brightness of the images of the first original image and the second original image can be brought closer to 1: 1.

When the first and second light sources are used,
It is preferable to determine the luminous intensities of the first light source 37 and the second light source 39 according to the transmissivities of the semi-transparent mirror 21, the first and second polarizing plates 23 and 19. Semi-transparent mirror 21, first and second polarizing plates 23, 19
Although the transmittance of No. 1 differs depending on the product, the brightness of the images of the first original image and the second original image can be brought close to 1: 1 by determining the light intensity as described above.

It is also possible to provide a light intensity adjusting means for adjusting the relative light intensity of the first light source and the second light source. This allows
It is possible to finely adjust the relative irradiation intensity for the first original image and the second original image.

The light source is preferably an incandescent lamp instead of a fluorescent lamp. This is because interference fringes occur on the semi-transparent mirror in a fluorescent lamp.

The second original image supporting portion preferably supports the second original image so as to form an angle of approximately 90 degrees with the first original image. This makes the device easy to handle and convenient to carry.

The first original image support portion or the second original image support portion is preferably provided with a support position adjusting device for adjusting the relative height positions of the first and second original images. This facilitates vertical adjustment of the left and right images seen by the viewer.

Further, it is preferable that the first polarizing plate and the second polarizing plate can be exchanged with each other depending on the dominant eye of the viewer. As a result, when the degree of dominant eye of the viewer is strong,
Even when the brightness of the image from the first original image and the brightness of the image of the second original image are different, a stereoscopic image can be observed by replacing the first and second polarizing plates with each other.

In the above description, the original image may be any one as long as it physically contains image information, and it is created by a normal reflection type positive photograph, computer graphics or the like. A hard copy of an image, a medical X-ray photograph, or the like.

Observation and viewing are to recognize a stereoscopic image by seeing the images from the first and second original images, and the viewer is a person who performs such recognition.

[0023]

According to the above construction, the reflected light from the first original image supported by the first original image supporting portion, for example, the right-eye photograph, passes through the first polarizing plate and the semi-transparent mirror, The second original image supported by the original image supporting portion, for example, the reflected light of the left-eye photograph passes through the second polarizing plate and is reflected by the semi-transparent mirror, and the transmitted light and the reflected light from the semi-transparent mirror are reflected by the semi-transparent mirror. The three-dimensional image is observed and viewed by observing the observation surface while wearing polarized glasses.

[0024]

Embodiments of the present invention will be described below in detail with reference to the drawings.

1 and 2 show a first embodiment of a stereoscopic image display device according to the present invention. This stereoscopic image display device is arranged on the bottom plate 1 substantially 90 degrees (perpendicular) to each other about the vertical axis.
And a second barrier plate 5 forming a first original image supporting portion and a second barrier plate 5 forming a second original image supporting portion which are vertically erected at a relative angle of.

A pair of groove-shaped right eye photograph side support 7 and bottom support 9 are attached to the first barrier plate 3,
The second barrier plate 5 has a pair of groove-shaped left eye photograph side support members 1
1 and a bottom support 13 are attached. The right-eye photograph side support 7 and the bottom support 9 support the right-eye photograph PR in a state parallel to the plate surface of the first barrier plate 3, and the left-eye photograph side support 11 and the bottom support 13 are The left-eye photograph PL is supported in parallel with the plate surface of the second barrier plate 5.

The right-eye photograph PR and the left-eye photograph PL are original images. The original image referred to here is mainly a stretched and developed positive image using photographic film taken with binocular parallax mutually, or a right eye image and a left eye image created by computer graphics etc. on paper. A positive image can be seen directly by reflected light such as a hard copy. These can be easily obtained in any size by stretching development, printing and the like. The original image is not limited to the above, and medical X-ray photographs and the like can be used. However, when a medical X-ray photograph or the like is used, it is desirable to provide a light source for irradiating the photograph from behind. This light source can be provided inside the barrier plates 3 and 5, for example.

One of the right-eye photograph PR and the left-eye photograph PL used in this stereoscopic image display device is a normal image, but the other is a mirror image which is horizontally reversed, and the mirror image is developed, for example, by turning over a photographic film. It is obtained by doing.

The bottom support 9 of the right-eye photograph PR is fixed to the first barrier plate 3, while the bottom support 13 of the left-eye photograph PL is supported on the second barrier plate 5 so as to be movable in the vertical direction. Has been done. More specifically, as shown in FIGS. 3 and 4, a pair of guide members 52 are provided on the back surface of the second barrier plate 5, and the bottom support 13 is formed on the pair of guide members 52. The auxiliary slide plate 54 is inserted so as to be vertically movable. A long hole 54a is formed at the center lower end of the auxiliary slide plate 54, and a set screw 56 screwed to the second barrier plate 5 is engaged with the long hole 54a. Therefore, the auxiliary slide plate 54 is fixed to the second barrier plate 5 by tightening the set screw 56 to the second barrier plate side. A leaf spring 58 for pressing the auxiliary slide plate 54 toward the second barrier plate is provided inside the guide member 52, and a flange for manually moving up and down is provided at the upper end of the auxiliary slide plate 54. 60 is formed. Therefore, by loosening the set screw 56 and moving the auxiliary slide plate 54 up and down, the support position of the left-eye photograph PL supported by the bottom support 13 can be adjusted in the vertical direction, and the auxiliary slide plate 54 can be moved. Align the left eye with the set screw 56 by tightening the set screw 56.
L can be fixed at a predetermined height position.

Referring again to FIGS. 1 and 2, the left eye photograph side support 11 and the bottom support 13 are the left eye photograph P.
The second polarizing plate 19 is supported in a polymerization state with L.

On the bottom plate 1, between the first barrier plate 3 and the second barrier plate 5, there is about 4 vertical axes about both of them.
A semi-transparent mirror 21 is erected at an angle of 5 degrees. The semi-transparent mirror 21 uses the mirror surface A as an observation surface for a viewer, transmits the reflected light of the right-eye photograph PR of the first barrier plate 3, and reflects the reflected light of the left-eye photograph PL of the second barrier plate 5.

The semi-transparent mirror has a transmittance of 20 to 30% except for an expensive one which is very carefully manufactured, and its value generally varies depending on the product.

On the surface (rear surface) opposite to the observation surface (mirror surface A) of the semitransparent mirror 21, a first polarizing plate 23 is arranged in close contact with the semitransparent mirror 21.

The first polarizing plate 23 and the second polarizing plate 19 are linear polarizing plates having directions different from each other by 90 degrees. For example, if the first polarizing plate 23 is a vertical polarizing plate, The two polarizing plates 19 are horizontal polarizing plates. In this case, in the polarized glasses worn by the viewer, the polarizing plate for the right eye is composed of the vertical polarizing plate and the polarizing plate for the left eye is composed of the horizontal polarizing plate.

A light stand 25 is erected on the bottom plate 1 on the front side of the semi-transparent mirror 21. This light stand 2
An incandescent bulb 27 located above the semi-transparent mirror 21 at the upper end of
And an illuminator (light source) 31 including a reflection light source cover 29
Is attached. The incandescent bulb 27 is used as the light source of the illuminator 31 because a fluorescent lamp causes interference fringes on the semi-transparent mirror 21. The illuminator 31 illuminates the right-eye photograph PR of the first barrier plate 3 and illuminates the left-eye photograph PL of the second barrier plate 5. By mounting the illuminator 31 above the semi-transparent mirror 21, it is possible to prevent the image of the illuminator 31 itself from entering the eyes of the viewer via the right-eye photograph PR.

The light stand 25 is movable in a direction orthogonal to the mirror surface A of the semi-transparent mirror 21, and is fixed at an arbitrary position by a fixing bolt 35 engaged with the elongated hole 33. By moving the light stand 25 in the above-mentioned direction, the relative illuminance of the right-eye photograph PR and the left-eye photograph PL can be finely adjusted.

In the stereoscopic image display device having the above-mentioned structure, the right-eye photograph PR is attached to the first barrier plate 3 by the right-eye photograph side support 7 and the bottom support 9, and the left-eye photograph side support 11 is attached. And the left eye photograph PL is attached to the second barrier plate 5 by the bottom support 13 and the illuminator 31.
The right eye photograph PR and the left eye photograph PL are illuminated by.

The reflected light of the right-eye photograph PR is the first polarizing plate 2
3 through the semi-transparent mirror 21, and the left eye photograph P
The reflected light of L passes through the second polarizing plate 19 and is reflected by the mirror surface A of the semi-transparent mirror 21, whereby the right-eye photograph PR and the left-eye photograph PL are combined on the observation surface side of the semi-transparent mirror 21, and this observation is performed. The three-dimensional image is observed and viewed by wearing the polarized glasses to observe the surface.

By the way, as described above, the transmissivity of the semi-transparent mirror is 20-50%. Therefore, when polarizing plates are arranged on the front surfaces of the right-eye photograph PR and the left-eye photograph PL, respectively,
When both photographs are evenly illuminated, the intensity of light from the right-eye photograph PR becomes weaker than that from the left-eye photograph PL, and the image of the right-eye photograph becomes darker than that of the left-eye photograph. However, in this embodiment, the first polarizing plate 23 for the right-eye photograph PR is provided on the back surface of the semitransparent mirror 21. Therefore,
When the right-eye photograph PR and the left-eye photograph PL are substantially evenly irradiated, the illuminance of the right-eye photograph PR in which the polarizing plate 23 is not arranged between the illuminator 31 and the light source 31 is the same as that of the right-eye photograph PR. It becomes stronger than the illuminance of the left-eye photograph PL (the intensity of light decreases when passing through the polarizing plate). Therefore, the light from the right-eye photograph PR becomes stronger than the light from the left-eye photograph PL, and the difference between the reflectance and the transmittance at the semi-transparent mirror 21 is compensated. That is, the intensity ratio of the reflected light from the semi-transparent mirror 21 and the transmitted light becomes approximately 1: 1, and the brightness of the image of the right-eye photograph due to the transmitted light from the semi-transparent mirror 21 and the brightness of the image of the left-eye photograph due to the reflected light are almost equal. Will be the same.

For example, if the transmissivity of the semi-transparent mirror 21 is 30% and the transmissivity of the first and second polarizing plates 23 and 17 is 48%,
In the stereoscopic image display device having the above-described configuration, the right-eye photo intensity (right-eye intensity) with the right eye and the left-eye photo intensity (left-eye intensity) with the left eye are approximately one-to-one as follows.

Right eye intensity: Left eye intensity = 0.48 × 0.3: 0.48 × 0.48 × 0.7 = 100: 112 In the above calculation of the left eye intensity, 0.48 is multiplied twice. The intensity of the light emitted from the light source 31 decreases to 48% when passing through the second polarizing plate 19 toward the left-eye photograph PL, and the light scattered and reflected by the left-eye photograph PL is substantially special. This is because, since it has no polarization direction, when it passes through the polarizing plate 19 again, the intensity is reduced to 48% again.

The difference between the right eye intensity and the left eye intensity is further corrected by adjusting the illumination difference between the right eye photograph PR and the left eye photograph PL by the illuminator 31. That is, by loosening the fixing bolt 35 and moving the light stand 25 along the long hole 33, the relative illuminance of the right eye photograph PR and the left eye photograph PL can be adjusted, and the ratio of the right eye intensity and the left eye intensity can be adjusted. Can be brought closer to 1: 1.

As described above, the commercially available semi-transparent mirror 21 generally has a different transmittance for each product. The illuminator 3
The movement of 1 makes it possible to deal with the variation in the transmittance of each product.

Further, by loosening the set screw 56 and moving the auxiliary slide plate 54 up and down, the bottom support 1
3 can be moved up and down to finely adjust the support position of the left-eye photograph PL supported by the bottom support 13 in the vertical direction. As a result, the right eye photograph PR and the left eye photograph PL are
The height position of and can be easily matched. Since the human eye has a high tolerance for horizontal blurring, but has a low tolerance for vertical blurring, making the heights of the right-eye photograph PR and the left-eye photograph PL adjustable provides a clear stereoscopic image. Is meaningful.

The observation of this stereoscopic image can be performed in the daytime or under normal room illumination, and simultaneously by a plurality of viewers.

In the above embodiment, the light stand 25 is moved along the long hole 33 so that the illuminator 31 is moved toward and away from the right-eye photograph PR and the left-eye photograph PL. By allowing the stand 25 to swing in the horizontal plane, the illuminator 31 can be moved toward and away from both the photographs PR and PL.

FIG. 5 shows a second embodiment of the present invention. That is, when the size of the apparatus itself becomes large because the relatively large photographs PR and PL are used, it is preferable that the right eye photograph PR and the left eye photograph PL are illuminated by separate illuminators 37 and 39. . Further, the semi-transparent mirror 21, the first,
Since the transmittances of the second polarizing plates 23 and 19 are different for each product, the illuminator 37,
It is preferred to define a luminosity of 39. These illuminators 3
The difference in luminous intensity between 7 and 39 is achieved by the difference in the number of incandescent lamps and the wattage.

Further, by attaching a dimmer using a conventionally known thyristor to the illuminators 37 and 39, the luminous intensity of the illuminators 37 and 39 can be finely adjusted. As a result, the right-eye photograph PR observed through the semi-transparent mirror 21,
The brightness of the left-eye photograph PL can be made almost the same.

FIG. 6 shows a third embodiment of the present invention. The third embodiment is different from the first embodiment shown in FIGS. 1 and 2 in that the first polarizing plate 23 is arranged in front of the right-eye photograph PR, and the illuminator 31 is The point is that it is provided not diagonally above the transparent mirror 21 but diagonally above the right-eye photograph PR. When the first polarizing plate 23 is arranged in front of the right-eye photograph PR, the image of the right-eye photograph PR is compared with the image of the left-eye photograph PL (because the transmissivity of the semi-transparent mirror is 50% or less). Although it tends to be dark, in the third embodiment, the illuminator 31 is used for the right-eye photograph P with respect to the semi-transparent mirror 21.
Since it is provided on the R side, the above tendency is compensated. Considering that the transmittance of a general semi-transparent mirror is around 20-30%, the position of the illuminator 31 is determined so that the illuminance of the right-eye photograph PR is about twice that of the left-eye photograph PL. preferable. The fine adjustment of the illuminance can be performed by loosening the bolt 35 and moving the light stand 25 toward and away from the right-eye photograph and the left-eye photograph, as in the case of the first embodiment.

FIG. 7 shows a fourth embodiment of the present invention. The fourth embodiment differs from the second embodiment shown in FIG. 5 in that the first polarizing plate 23 is arranged on the front surface of the right-eye photograph PR, and the illuminator 37 for irradiating the right-eye photograph PR. That is, the luminous intensity is about twice as high as the luminous intensity of the illuminator 39 that illuminates the left-eye photograph PL. By making the luminous intensity of the illuminator 37 larger than that of the illuminator 39 in this way, it is possible to compensate for the difference in the transmittance and reflectance of the semi-transparent mirror 21.

FIG. 8 shows a fifth embodiment of the present invention. The fifth embodiment differs from the first embodiment shown in FIGS. 1 and 2 in that the first polarizing plate 23 and the second polarizing plate 19 are different from the first barrier plate 3 and the second barrier plate 5. The point is that it is detachably attached. As a result, depending on whether the dominant eye of the viewer is the right eye or the left eye, the first polarizing plate 23 and the second polarizing plate 1
You can replace 9 with. For example, when the dominant eye of the viewer is the right eye, the right eye is wearing the polarizing glasses of the polarizing plate 71 in the vertical direction, and the left eye is wearing the polarizing glasses of the polarizing plate 73 in the horizontal direction, the front surface of the photograph PR. A polarizing plate 23 in the vertical direction is arranged in the vertical direction, and a polarizing plate 19 in the horizontal direction is arranged on the front surface of the photo PL (on the contrary, the arrangement of the polarizing glasses is the same as the above, but the dominant eye of the viewer is the left eye). In some cases, photo PR
The horizontal polarizing plate 19 is arranged on the front surface of the photo PL, and the vertical polarizing plate 23 is arranged on the front surface of the photo PL). in this case,
The brightness of the image of the photo PR entering the right eye (or the left eye) of the viewer is darker than the brightness of the image of the photo PL entering the left eye (or the right eye), but the right eye (or the left eye) is the dominant eye. Therefore, a stereoscopic image can be sufficiently observed and viewed.

Assuming that the photo surface luminous intensity on the dominant eye side is DI and the photo surface luminous intensity on the non-dominant eye side is RI, RI /
When the DI is 0.5-2.5, a stereoscopic image can be observed, and when the DI is 2.0-2.5, the image becomes particularly clear. RI
When / DI is 0.0-0.5, a stereoscopic image cannot be seen.

Here, the dominant eye is the eye that is easier to see when observing, as if the arm had a dominant arm. Specifically, it can be identified as follows. That is, i) First, as shown in FIG. 9a, open both eyes 81, 83 and look at points A and B in the same direction. ii) Next, the left eye 81 (or right eye 83) is closed while maintaining the above state. At this time, if points A and B are seen in the same direction, the state of FIG. 9b (FIG. 9c) is actually realized in the above i), and the dominant eye is the right eye 83 (left eye 81).

In the above embodiment, the angle formed by the first barrier plate 3 and the second barrier plate 5 is 90 degrees, but as shown in FIGS. 10a and 10b, the angle may be any angle less than 180 degrees. can do. However, it is desirable that the semi-transparent mirror 21 be provided at an angular position that divides the angle formed by the barrier plates 3 and 5 into approximately two.

In the above embodiment, the polarizing plate 19,
Although 23 is a linearly polarizing plate, a circularly polarizing plate can also be used.

Further, in the above embodiment, the bottom plate 1, the barrier plates 3 and 5 and the semi-transparent mirror 21 may be connected to each other by using a hinge or the like, so that the entire apparatus may be constructed in a folding type. In the above, the present invention has been described in detail with respect to specific embodiments, but the present invention is not limited to these, and various embodiments are possible within the scope of the present invention. It will be apparent to those skilled in the art.

[0057]

As can be understood from the above description, since the stereoscopic image display device of the present invention is constructed as described in the scope of claims for utility model registration, it can be downsized and can be manufactured easily and inexpensively. can do.

Further, according to one aspect of the present invention, 50%
Since it is not necessary to use an expensive semi-transparent mirror having front and rear transmittance, the cost of the entire apparatus can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of a stereoscopic image display device according to the present invention.

FIG. 2 is a plan view showing a first embodiment of a stereoscopic image display device according to the present invention.

FIG. 3 is a perspective view showing an example of a support position adjusting mechanism incorporated in a stereoscopic image display device according to the present invention.

4 is a cross-sectional view taken along the line IV-IV in FIG.

FIG. 5 is a plan view showing a second embodiment of a stereoscopic image display device according to the present invention.

FIG. 6 is a plan view showing a third embodiment of the stereoscopic image display device according to the present invention.

FIG. 7 is a plan view showing a fourth embodiment of a stereoscopic image display device according to the present invention.

FIG. 8 is a plan view showing a fifth embodiment of the stereoscopic image display device according to the present invention.

FIG. 9 is an explanatory diagram of a method of distinguishing a dominant eye.

FIG. 10 is an explanatory diagram of a stereoscopic image display device when the angle formed by the first and second barrier plates is smaller or larger than 90 degrees.

FIG. 11 is an explanatory diagram showing a conventional device.

[Explanation of symbols]

 3 First Barrier Plate 5 Second Barrier Plate 7 Right Eye Photo Side Support 9 Bottom Support 11 Left Eye Photo Side Support 13 Bottom Support 19 Second Polarizer 21 Semi-transparent Mirror 23 First Polarizer 31, 37, 39 Illuminator (light source) PR Right eye photo PL Left eye photo

Claims (8)

(57) [Scope of utility model registration request] 1. A first original for supporting a first original image (PR) so as to face a viewer by forming a stereoscopic image display device for a viewer to observe and appreciate a stereoscopic image by wearing polarized glasses. An image supporting part (3); a second original image supporting part (5) supporting the second original image (PL) so as to form an angle of less than 180 degrees with respect to the first original image (PR); First original image support section (3) and second original image support section (5)
Between the first original image (PR) and the second original image (P
L) is arranged at substantially the same angle with respect to L) and has a transmittance of about 30% for transmitting the light from the first original image (PR) and reflecting the light from the second original image (PL). A transparent mirror (21), a first polarizing plate (23) arranged on the back surface of the semi-transparent mirror (21) and having a transmittance of 50% or less, and arranged so as to be positioned in front of the second original image (PL). Further, the second polarizing plate (19) having a transmittance of 50% or less and the second polarizing plate (19) are provided above the semi-transparent mirror (21) so that the first original image (PR) and the second original image (PL) are substantially evenly irradiated. A stereoscopic image display device comprising a light source (31). 2. The light source (31) approaches the first original image (PR) and moves away from the second original image (PL) and away from the first original image (PR) and the The stereoscopic image display device according to claim 1, wherein the stereoscopic image display device is movable in a direction of approaching the second original image (PL). 3. The stereoscopic image display device according to claim 1, wherein the light source (31, 37, 39) is an incandescent lamp (27). 4. The first original image supporting portion (3) and the second original image supporting portion (5) are arranged so that the first original image (PR) and the second original image (PL) are substantially 90 degrees from each other. The semi-transparent mirror (21) supports the first original image (PR),
The stereoscopic image display device according to claim 1, wherein the stereoscopic image display device is arranged so as to form an angle of approximately 45 degrees with the second original image (PL). 5. The original image vertical position adjusting device (13, 54) for adjusting the vertical position of the first original image (PR) or the second original image (PL), according to claim 1. Stereoscopic image display device. 6. The first polarizing plate (2) according to the dominant eye of the viewer.
3. The stereoscopic image display device according to claim 1, characterized in that the second polarizing plate (19) can be exchanged with each other. 7. The stereoscopic image display device according to claim 1, wherein the first and second polarizing plates are linear polarizing plates that produce linearly polarized light in the vertical and horizontal directions, respectively. 8. The stereoscopic image display device according to claim 1, wherein both the first and second original images are positive photographs.