JP2000098298A - Stereoscopic video optical device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stereoscopic video optical device giving perspective and movement to an illusional image and showing the real illusional image to an observer. SOLUTION: The stereoscopic video optical device 1001 is provided with a easing 11 having a window 5 and housing an object, at least one convex Fresnel lens 8 provided in the inside from the window 5 parallel to the window 5, a means, that is, a convex Fresnel lens hold member 13 moving the convex Fresnel lens 8 along the arrow A, a driven rack 14, a motor 16 and a drive gear 15, and shows the illusional image 12 of the doll 9 of the object placed in the casing 11 to the observer 110.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-dimensional image optical device, and more particularly to a three-dimensional image optical device that allows a viewer to view a three-dimensional illusion image of a subject in a free space different from the position of the subject.

[0002]

2. Description of the Related Art A stereoscopic image optical apparatus for giving an observer an illusion that a three-dimensional image of an object exists in a free space different from the original position of the object is a conventionally known technique.

[0003] Japanese Patent Application Laid-Open No. 60-59317 discloses a stereoscopic video apparatus using a convex Fresnel lens. In other words, a cathode ray tube display and
A first convex Fresnel lens and a second convex Fresnel lens, wherein the image generated on the cathode display is viewed by the observer as if it were in free space between the observer and the second convex Fresnel lens. This is a three-dimensional image device that gives the illusion of.

[0004] A stereoscopic image optical device disclosed in Japanese Patent Application Laid-Open No. 60-59317 will be described below with reference to the drawings. FIG. 18 is a schematic side view of the stereoscopic image optical device disclosed in Japanese Patent Application Laid-Open No. 60-59317, with the side surface removed and viewed from the side.

The conventional stereoscopic image optical apparatus 100 includes a first convex Fresnel lens 102 and a second convex Fresnel lens 103.
And a canopy 104. The canopy 104 has an open end 111 for an observer to see inside. The first convex Fresnel lens 102 is provided inside the cover 104 such that the lens surface is parallel to the open end 111.
The second convex Fresnel lens 103 has an open end 11
1 is provided between the open end 111 and the first convex Fresnel lens 102 so as to be parallel to 1. Subject 120
Is placed inside the first convex Fresnel lens 102. The distance between the subject 120 and the first convex Fresnel lens 102 is
The focal length of the first convex Fresnel lens 102 is equal to the focal length of the second convex Fresnel lens 103, and the distance between the second convex Fresnel lens 103 and the eye 110 is the second.
It is equal to the focal length of the convex Fresnel lens 103.

When the subject 120 is placed inside the first convex Fresnel lens 102 and the observer observes the open end 111 of the three-dimensional image optical device 100 at the position represented by the eye 110, the observer Between the eyes 110
The illusion image 105 of the subject 120 is viewed.

FIG. 19 is a schematic view of a conventional three-dimensional image optical apparatus using a reflecting mirror, with the ceiling surface removed and viewed from directly above. Components similar to those in FIG. 18 are denoted by the same reference numerals.

A conventional stereoscopic image optical device 20 shown in FIG.
0 denotes a first convex Fresnel lens 102, a second convex Fresnel lens 103, a cover 104, and a first reflecting mirror 106.
And a second reflecting mirror 107. The canopy 104 has an open end 111 for an observer to look inside, and
A space 113 for placing 0 is formed next to the open end 111. A first convex Fresnel lens 102, a second convex Fresnel lens 103, a first reflecting mirror 106, and a second reflecting mirror 10;
7 is provided inside the covering 104. That is,
The second convex Fresnel lens 103 is provided in the cover 104 such that the lens surface is parallel to the open end 111.
The first convex Fresnel lens 102 is provided on the side opposite to the open end 111 so as to form 90 degrees with the second convex Fresnel lens. The second reflecting mirror 107 includes the second reflecting mirror 107 and the first reflecting mirror 107.
The convex Fresnel lens 102 and the second convex Fresnel lens 10
3 is provided at such a position as to form a right triangle.
The first reflecting mirror 106 includes the first convex Fresnel lenses 102 and 4
It is provided at a position that forms 5 degrees and forms 90 degrees with the second reflecting mirror 107. The space 113 includes the first convex Fresnel lens 102
, The first reflecting mirror 106 and a part of the covering 104.

When the subject 120 is placed in the space 113, an image of the subject 120 reflected on the first reflecting mirror 106 is reflected by the second reflecting mirror 107 through the first convex Fresnel lens 102, and the second convex Fresnel lens The subject 12 passes through the free space between the second convex Fresnel lens 103 and the eye 110 through the lens 103.
The illusion image 105 of 0 appears in front of the eyes 110.

[0010]

However, in the stereoscopic image optical apparatus according to the prior art as described above, the positional relationship between the subject and the convex Fresnel lens is fixed. Therefore, the illusion image that the observer sees, if the subject is the same,
Appeared at the same position and size. Therefore, the observer could not show the illusion image with a perspective to the observer, and could not show the moving illusion image unless the subject moved by himself.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a stereoscopic image optical apparatus capable of producing a sense of perspective and movement of an illusion image so as to show a more realistic illusion image to an observer. It is intended to provide.

Further, when illumination for illuminating the subject is required, or when the subject is a device that requires electricity such as a video screen, heat is generated in the housing and the temperature in the housing increases. Not only cause equipment failure,
There was also a problem with safety.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and provides a stereoscopic image optical device capable of releasing heat generated in a housing and preventing an excessive temperature rise in the housing. It is intended to do so.

Further, the illusion image formed by the conventional stereoscopic image optical device is, more precisely, an illusion image of the space where the subject is placed, and therefore, there is a problem that parts other than the subject are also included in the illusion image. .

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a stereoscopic image optical apparatus which does not show a part other than a subject in a space where the subject is located to an observer. It is the purpose.

Further, the conventional three-dimensional image optical device has a problem that there is only one place where an illusion image is shown to an observer.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a stereoscopic image optical device capable of showing an illusion image at a plurality of places.

[0018]

According to a first aspect of the present invention, there is provided a stereoscopic image optical apparatus comprising: a stereoscopic image optical apparatus for displaying a three-dimensional illusion image of a subject in a free space different from the position of the subject to an observer; In the imaging optical device, a housing having a window and accommodating a subject, at least one convex Fresnel lens provided inside the window so that a lens surface is parallel to the window, and changing the appearance of the illusion image. The subject is placed inside the convex Fresnel lens, and the free space is a space between the observer and the window.

Further, in the stereoscopic image optical apparatus according to a second aspect, the image changing means is means for moving the convex Fresnel lens along an optical axis between the subject and the convex Fresnel lens. Things.

According to a third aspect of the present invention, in the stereoscopic image optical apparatus, the image changing means is means for moving the subject along an optical axis between the subject and the convex Fresnel lens. is there.

Further, in the stereoscopic image optical apparatus according to the present invention, the image changing means is means for rotating a subject.

The stereoscopic image optical device according to claim 5 is characterized in that the image changing means can change the speed at which the illusion image changes.

Further, in the stereoscopic image optical apparatus according to the present invention, the image changing means does not contact the Fresnel lens.
It is a means for suspending the subject from the ceiling of the housing.

According to a seventh aspect of the present invention, the subject includes a screen, a screen, a liquid crystal panel, or a cathode ray tube display having a light emitting property.

Further, the stereoscopic image optical device according to the present invention is characterized in that when the subject has no light emission, the housing is provided with illumination for illuminating the subject.

According to a ninth aspect of the present invention, there is provided the stereoscopic image optical device, wherein the housing has at least one ventilation port, and the stereoscopic image optical device includes means for preventing light from entering through the ventilation hole. It is assumed that.

[0027] The stereoscopic image optical device according to the tenth aspect is further characterized by further comprising a fan for prompting replacement of air in the housing through a ventilation port.

The stereoscopic image optical device according to the eleventh aspect is further characterized by further comprising means for preventing insects from entering through the ventilation holes.

According to a twelfth aspect of the present invention, in the stereoscopic image optical device, the housing further includes a handle for carrying, and at least one ventilation port provided in the handle. .

According to a thirteenth aspect of the present invention, there is provided a stereoscopic image optical device, wherein the illumination is a lamp having a dichroic reflector, wherein the housing has at least one ventilation opening, and the stereoscopic image optical device is provided with a reflector. A guide pipe extending from the vicinity of the rear part of the reflecting mirror to the ventilation port is provided to discharge the temperature-raised air by the transmitted light energy from the ventilation port.

Further, the stereoscopic image optical apparatus according to claim 14 is characterized in that it comprises a stop arranged between the convex Fresnel lens and the subject.

Further, the stereoscopic image optical device according to claim 15 is characterized in that the diaphragm can move along the optical axis between the object and the convex Fresnel lens.

Further, the stereoscopic image optical device according to claim 16 is characterized in that there are a plurality of windows, and at least one convex Fresnel lens is provided inside each of the windows.

[0034]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, a stereoscopic image optical device according to Embodiment 1 of the present invention will be described with reference to FIG. The first embodiment is a three-dimensional image optical apparatus provided with image changing means for changing the appearance of the illusion image 12.

FIG. 1 is a schematic side view of the stereoscopic image optical device according to the first embodiment, with the side surface removed and viewed from the side. The stereoscopic image optical device 1001 includes a convex Fresnel lens 8
, Illumination 10, a housing 11, a convex Fresnel lens holding member 13, a driven rack 14, a drive gear 15, and a motor 16. The convex Fresnel lens holding member 13, the driven rack 14, the drive gear 15, and the motor 16 constitute a moving unit for moving the convex Fresnel lens 8.

The housing 11 has a window 5 on one arbitrary surface.
The illumination 10 illuminates a subject, for example, the doll 9 placed in the housing 11. The convex Fresnel lens 8 is attached to the convex Fresnel lens holding member 13 such that the lens surface is parallel to the window 5. Convex Fresnel lens holder 13
Is mounted on the driven rack 14 and can be moved on the driven rack 14 in the optical axis direction, that is, in the direction of arrow A by the motor 16 and the drive gear 15. Therefore, the convex Fresnel lens 8 can move in the direction of arrow A.

The subject is placed inside the convex Fresnel lens 8. When light is applied to the doll 9 as a subject by the illumination 10, the reflected light passes through the convex Fresnel lens 8,
An image is formed at the position indicated by, and the observer observes the convex Fresnel lens 8
A three-dimensional optical illusion image 12 of the doll 9 is seen in the free space between the puppet 9 and the eyes 110. When the convex Fresnel lens 8 moves in the direction of arrow A, the focal point of the convex Fresnel lens 8 moves.
The observer notices that the illusion image 12 is far away (the illusion image 12-
1), approaching (illusion image 12-2), and the illusion image 12 has a perspective. Further, the motor 16
When the rotation speed of the optical illusion image 12 is changed, the moving speed of the illusion image 12 is changed.

As described above, the stereoscopic image optical apparatus 1001 shown in FIG. 1 is provided with a means for moving the convex Fresnel lens 8 as an image changing means, so that an observer can see an illusion image 12 having a sense of perspective and speed. Can be.

In the stereoscopic image optical apparatus 1001 shown in FIG. 1, a convex Fresnel lens is placed on a convex Fresnel lens holding member 13, and the holding member 1 is driven using a driven rack 14 and a driving gear 15.
Although the moving means for moving the lens 3 is used, the moving means is not particularly limited as long as the convex Fresnel lens can be moved in the housing 11.

The illusion image 12 is an image created by the observer as an image in the head, and a stereoscopic image is not actually formed by the stereoscopic image optical device 1001 at the illustrated position.

FIG. 2 is a schematic side view of another stereoscopic image optical apparatus according to Embodiment 1 with its side removed and viewed from the side. 1 are given the same reference numerals. The stereoscopic image optical device 1002 includes a convex Fresnel lens 8, illumination 10, a housing 11, a driving gear 15,
Motor 16, subject moving table 17, driven rack 18
And The subject moving table 17 is attached to a driven rack 18, and is driven by a motor 16 and a driving gear 15.
It can move in the direction of arrow B on the driven rack 18. The drive gear 15, the motor 16, the object moving table 17, and the driven rack 18 constitute a means for moving the object.

The stereoscopic image optical device 1002 is a device in which the convex Fresnel lens 8 is fixed so that the lens surface is parallel to the window 5 and the subject is moved to give a sense of perspective of the illusion image 12. That is, when the doll 9 as a subject is placed on the subject moving table 17 and the subject moving table 17 is moved in the optical axis direction, that is, the direction of arrow B, the doll 9 and the convex Fresnel lens 8 are moved.
Changes, the observer sees the illusion image 12 as being far (illusion image 12-3) or approaching (illusion image 12-4). Therefore, the illusion image 12 can have a perspective. Further, when the rotation speed of the motor 16 is changed, the moving speed of the illusion image 12 is changed.
The sense of speed of the illusion image 12 can also be obtained.

As described above, the stereoscopic image optical device 1002 shown in FIG. 2 is provided with the means for moving the subject as the image changing means, and can show the illusion image 12 with a sense of perspective and speed to the observer.

The stereoscopic image optical device 100 shown in FIG.
In 2, the moving means of placing the subject on the subject moving table 17 and moving the subject moving table 17 using the driven rack 18 and the driving gear 15 is used. However, the subject can be moved in the housing 11. If so, the means of transportation is not particularly limited.

FIG. 3 is a schematic side view of another stereoscopic image optical apparatus according to Embodiment 1 with its side removed and viewed from the side. 2 are given the same reference numerals.

The stereoscopic image optical device 1003 includes a convex Fresnel lens 8, an illumination 10, a housing 11, and a driving gear 15.
, A motor 16, a subject rotation table 19, and a driven rotation gear 20. The subject turntable 19 is attached to a driven rotary gear 20, and includes a drive gear 15 and a motor 16.
And the driven rotary gear 20 can rotate in the direction of arrow C. The drive gear 15, the motor 16, the subject rotating table 19, and the driven rotary gear 20 constitute a unit for rotating the subject.

The stereoscopic image optical device 1003 is a device for rotating the illusion image 12 by rotating a subject. That is, when the doll 9 as the subject is placed on the subject turntable 19 and the subject turntable 19 is rotated in the direction of arrow C, the observer sees that the illusion image 12 is rotating in the direction of arrow P. Note that the direction of the arrow P is opposite to the direction of the arrow C.

At this time, the rotation speed of the illusion image 12 can be changed by changing the rotation speed of the motor 16. In addition, when the doll 9 is placed at the rotation center of the subject rotation table 19, the illusion image 12 rotates simply, but when the doll 9 is placed at a position away from the rotation center, the illusion image 12 turns around the center, The size of the image also changes.

As described above, the stereoscopic image optical device 1003 shown in FIG. 3 is provided with the means for rotating the subject as the image changing means, and can show the rotating illusion image 12 to the observer.

In the three-dimensional image optical device shown in FIGS. 2 and 3, the table on which the subject is placed is mounted on the bottom surface of the housing, but the mounting position is not limited to the bottom surface. For example, FIG.
A driving gear 15 of the stereoscopic optical device 1003 shown in FIG.
Motor 16, subject rotating base 19, and driven rotary gear 2
FIG. 7 is a schematic side view showing a state in which the number “0” is provided on the ceiling of a housing. If the subject doll 9 is placed upside down on the subject rotating table 19 of the stereoscopic image optical device 1004 shown in FIG. 4, the observer can see the illusion image 12 of the doll that is not upside down.

Further, a description will be given of a three-dimensional image optical apparatus provided with an image changing means for making the illusion image 12 move. FIG. 5 is a schematic side view of another stereoscopic image optical device according to Embodiment 1 with the side surface removed and viewed from the side.
1 are given the same reference numerals.

The three-dimensional image optical device 1005 includes a convex Fresnel lens 8, an illumination 10, a housing 11, and a suspending thread 21 for suspending a subject as image changing means. The length of the hanging thread 21 is set to a length that does not make contact with the convex Fresnel lens 8 and the illumination 10 when the subject moves. When the doll 9 is hung with the hanging string 21, the observer can see the illusion image 12 of the doll moving according to the hanging string 21.

FIG. 6 shows the stereoscopic image optical device 1 shown in FIG.
004 is a schematic side view showing a state in which a hanging thread for hanging a subject is provided on a subject rotation table 19 of 004. FIG. 4 and 5 are denoted by the same reference numerals.

The hanging thread 21 for hanging the subject is provided below the subject turntable 19. The position of the hanging thread 21 changes depending on what kind of operation is performed on the illusion image 12 shown to the observer. When the doll 9 is hung by the hanging thread 21 and the subject turntable 19 is rotated, the observer can see the illusion image 12 of the doll that moves freely.

FIG. 7 shows the stereoscopic image optical device 1 shown in FIG.
FIG. 006 is a schematic side view showing a case where a means for changing the length of the hanging thread 21 is further provided in 006. The wheel 22 is fixed to a predetermined position of the housing 11, a hanging thread 21 is attached to a position other than the center of rotation of the object rotation table 19, and the hanging thread 21 is attached to the wheel 2.
Pass through 2. When the doll 9 is hung on the hanging thread 21 and the subject turntable 19 is rotated, the length of the hanging thread 21 from the wheel 22 to the doll 9 (indicated by an arrow D in the drawing) changes. 9 moves up and down, and the observer sees an illusion image 12 that moves up and down in the arrow Q direction.

As described above, according to the first embodiment, by providing the convex Fresnel lens 8 or the moving means for moving the subject as the image changing means, the distance of the illusion image 12 seen by the three-dimensional image optical apparatus can be improved. The illusion image 12 can be given a motion, and a more realistic illusion image can be shown to the observer. Also,
If a means for rotating the subject or a means for suspending the object is provided as the image changing means, an illusion image 1 that moves more complicatedly
2 can be shown to the observer.

In the first embodiment, the case where the number of convex Fresnel lenses is one has been described. However, the number of convex Fresnel lenses may be two. In particular, the stereoscopic image optical device 1001 shown in FIG.
In the case where two lenses are provided, means capable of moving two lenses is provided. The illumination 10 is not always necessary if the subject has a light emitting property such as a cathode ray tube monitor.

Embodiment 2 Hereinafter, a stereoscopic image optical device according to Embodiment 2 of the present invention will be described with reference to the drawings. The stereoscopic image optical device according to the second embodiment includes:
The three-dimensional image optical device includes a heat emitting unit that emits heat in the housing to prevent an excessive temperature rise in the housing. FIG. 8 is a perspective view of a housing of the stereoscopic image optical device according to the second embodiment. FIG. 9 is a sectional view taken along line XX of FIG. FIG.
The same reference numerals are given to the same configurations as in.

The housing 11-1 has a window 5 on one arbitrary surface, and an observer sees an illusion image through the window 5. Also, housing 1
1-1 has ventilation holes 23 on the bottom surface 50 and the opposing side surfaces 51 and 52, respectively. The light shielding plate 24 is
To prevent the light from entering the housing 11-1.
It is attached so as to cover the ventilation port 23 inside 1. Attention should be paid so that the attachment of the light shielding plate 24 does not hinder the ventilation of the ventilation port 23. Air is taken in from the ventilation opening 23 of the bottom surface 50 and rises inside, and the side surfaces 51, 5
The second ventilation hole 23 is made to go out of the housing 11-1.

In FIGS. 8 and 9, a plurality of ventilation holes 23 are provided on the bottom surface and two side surfaces of one housing. The size and number of the surface on which the ventilation holes 23 are provided and the number of ventilation holes 23 are as follows. A preferable value may be selected based on the size of the housing 11-1, the degree of light penetration, and the like.

Here, both side surfaces 51 and 52 and the light shielding plate 2
4, a forced fan may be provided to forcibly discharge and inhale air. FIG. 10 shows the housing 1 shown in FIG.
FIG. 1B is a cross-sectional view showing a state where the forced fan 25 is installed between the side surfaces 51 and 52 and the light shielding plate 24 in 1-1.

Further, a means for preventing insects from entering through the ventilation port 23 may be provided. FIG. 11 shows the housing 11 shown in FIG.
FIG. 3 is a cross-sectional view showing a state where an insect infiltration prevention net 26 is installed from the inside of the housing 11-1 to the ventilation opening 23 in FIG.

When a handle is provided on the housing to facilitate carrying the housing, a vent may be provided on the handle. FIG. 12 is a perspective view of a housing of the stereoscopic image optical device provided with a handle. FIG. 13 is a sectional view taken along line YY of FIG. 8 and 9 are denoted by the same reference numerals.

The housing 11-2 has the window 5 and the handle 27, the vent 23 on the bottom surface 50, and the vent 2 on the handle 27.
8 The air is taken in from the ventilation opening 23 of the bottom surface 50, rises in the housing 11-2, and exits from the ventilation opening 28 of the handle 27.

As shown in FIGS. 8 to 13, when a ventilation passage is provided in the housing to create a path through which air flows, various electric devices placed in the housing, for example, illumination and images as a subject can be displayed. The heat generated by the output device, the means for moving the subject or the convex Fresnel lens, etc. is released outside the housing,
Temperature rise in the housing can be suppressed.

Further, a description will be given of a heat releasing means when a lamp using a dichroic reflecting mirror is used as the illumination 10 in the housing. FIG. 14 is a partially broken perspective view for explaining the inside of the housing in which the dichroic reflector is placed. The housing 11-3 is provided with a ventilation opening on any side surface 5.
3, a dichroic reflecting mirror 29 and a guide pipe 30 are placed in the housing 11-3. The guide pipe 30 extends from the vicinity of the rear part of the dichroic reflector 29 to the ventilation port 54. Dichroic reflector 2
The air whose temperature has risen due to the light energy passing through 9 passes through the guide pipe 30 and is discharged from the ventilation port 54, so that the temperature inside the housing 11-3 can be prevented from rising.

As described above, according to the second embodiment, by providing the ventilation holes in the housing, a path through which air flows is formed in the housing, and it is possible to prevent the temperature in the housing from rising. It is also possible to provide a shielding plate to prevent light from entering through the ventilation opening. Furthermore, an intrusion prevention net is provided in the ventilation opening, so that intrusion of insects and the like can be prevented.

Embodiment 3 Hereinafter, a stereoscopic image optical device according to Embodiment 3 of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. In the three-dimensional image optical apparatus according to Embodiment 3, the portion other than the subject inside the housing is an illusion image 1
2 is a stereoscopic image optical device provided with means for preventing the image from being included in the stereoscopic image optical device 2. FIG. 15 is a schematic side view of the stereoscopic image optical device according to the third embodiment, with the side surface removed and viewed from the side. FIG. 16 shows the stereoscopic image optical device 10 shown in FIG.
FIG. 15 is a partially cutaway perspective view for explaining the inside of the device 15; 1 are given the same reference numerals.

The stereoscopic image optical device 1015 includes the convex Fresnel lens 8, the illumination 10, the housing 11, the stop 31, the stop holding member 32, the shaft 33, and the moving lever.

The aperture 31 is composed of the convex Fresnel lens 8 and the doll 9
Are designed so as to have an effective diameter (arrow E in FIG. 15) on the optical axis between. The stop fixing base 32 fixes the stop 31. Two shafts 33 are provided near the bottom surface of the housing 11 in parallel with the optical axis, and penetrate the stop fixing base 32. The moving lever 34 is attached to the aperture holding member 32 and
1 protrudes outside. When the moving lever 34 is moved in the direction of arrow F along the optical axis, the stop fixing base 32 is
3, the position of the diaphragm 31 is changed, and the angle of view can be adjusted.

When the doll 9 is placed in the casing 11 of the three-dimensional image optical device 1015, a part of the light reaching the convex Fresnel lens 8, that is, the light around the doll 9 is cut by the diaphragm 31. Therefore, the observer sees the illusion image 12 around the doll 9 in which the wasteful object, for example, the illumination 10 is omitted.

As described above, according to the third embodiment, by placing the stop between the convex Fresnel lens and the subject, unnecessary portions around the subject can be made invisible to the observer. . Also, since the position of the aperture can be changed,
The angle of view can be adjusted.

In the stereoscopic image optical apparatus 1015 shown in FIG. 16, the position of the diaphragm 31 is adjusted by the moving lever 34. However, it is needless to say that the diaphragm 31 may be electrically moved by using a motor and gears. . In the third embodiment, the case where the number of convex Fresnel lenses is one has been described, but the number of convex Fresnel lenses may be two.

Embodiment 4 Hereinafter, a stereoscopic image optical device according to Embodiment 4 of the present invention will be described with reference to FIG. The stereoscopic image optical device according to Embodiment 4 includes a plurality of convex Fresnel lenses.

FIG. 17 is a schematic side view of the stereoscopic image optical apparatus according to Embodiment 4 with the ceiling surface removed and viewed from the side. 1 are given the same reference numerals.

The stereoscopic image optical device 1017 includes first, second, and third convex Fresnel lenses 80, 81, and 82;
A housing 11-4 and lighting (not shown) are provided. Case 1
1-4 are hexagonal prisms having windows 55, 56, and 57 on three adjacent surfaces, respectively, and a convex Fresnel lens is provided inside each window. When the doll 9 as a subject is placed in the housing 11-4, the observer passes through the three windows 55, 56, and 57 (that is, the eyes 110-1, 110-2, and 110-3).
Illusion images 12-1, 12-2, 1
2-3 can be seen respectively.

The stereoscopic image optical device 1017 shown in FIG.
Although the description has been made using the hexagonal column housing 11-4, the shape of the housing is not limited to a hexagonal column. Further, the surface on which the window is provided may be changed depending on the application. For example, the housing may be a polyhedron other than a hexagonal prism, and windows may be provided on a plurality of surfaces.

As described above, according to the fourth embodiment, a convex Fresnel lens is provided for each of a plurality of windows.
An illusion image can be seen from a plurality of directions for one subject.

In the fourth embodiment, the case where one convex Fresnel lens is disposed for one window has been described. However, two convex Fresnel lenses can be provided for one window. .

In the first, third, and fourth embodiments, the subject is described as a doll 9, but a display, for example, a screen, a screen, a liquid crystal panel, or a cathode ray tube display is used as the subject. You can also. Note that when the subject has a light emitting property, the illumination need not be provided in the housing.

[0081]

As is apparent from the above description, the stereoscopic image optical device of the present invention has a housing having a window and accommodating a subject, and a lens surface inside the window being parallel to the window. Since at least one convex Fresnel lens provided and image changing means for changing the appearance of the illusion image are provided, it is possible to give the observer a more realistic illusion image by giving a sense of perspective to the illusion image. The effect is obtained.

Further, in the stereoscopic image optical device of the present invention, since the housing has at least one ventilation port and the stereoscopic image optical device has means for preventing light from entering through the ventilation hole, the object can be illuminated. When an illuminating device is required, or when a device that requires electricity such as a video screen is a subject, even if heat is generated in the housing, an effect of suppressing a temperature rise in the housing can be obtained.

Further, since the stereoscopic image optical apparatus of the present invention has the diaphragm disposed between the convex Fresnel lens and the object, unnecessary three-dimensional images within a certain angle of view in the space where the object is located are provided. An effect that an illusion image not including the portion can be shown to the observer is obtained.

The stereoscopic image optical apparatus of the present invention has a plurality of windows, and at least one convex Fresnel lens is provided inside each of the windows, so that the observer can create an illusion image of one subject. The effect of being able to see from multiple directions is obtained.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a stereoscopic image optical device according to a first embodiment, with a side surface removed and viewed from the side.

FIG. 2 is a schematic side view of another stereoscopic image optical device according to Embodiment 1 with the side surface removed and viewed from the side.

FIG. 3 is a schematic side view of another stereoscopic image optical device according to the first embodiment, with the side surface removed and viewed from the side.

FIG. 4 is a schematic side view of another stereoscopic image optical device according to the first embodiment, with the side surface removed and viewed from the side.

FIG. 5 is a schematic side view of another stereoscopic image optical device according to the first embodiment, with the side surface removed and viewed from the side.

FIG. 6 is a schematic side view of another stereoscopic image optical device according to the first embodiment, with the side surface removed and viewed from the side.

FIG. 7 is a schematic side view of another stereoscopic image optical device according to the first embodiment, with the side surface removed and viewed from the side.

FIG. 8 is a perspective view of a housing of the stereoscopic image optical device according to the second embodiment.

FIG. 9 is a sectional view taken along line XX of FIG. 8;

FIG. 10 is a cross-sectional view showing a state where a forced fan 25 is installed in the housing 11-1 shown in FIG.

FIG. 11 is a cross-sectional view of the case 11-1 shown in FIG.
It is sectional drawing which shows the state which installed the insect infiltration prevention net 26 in the housing | casing 11-1 side of No. 3.

FIG. 12 is a perspective view of a housing of the stereoscopic image optical device provided with a handle.

13 is a sectional view taken along the line YY in FIG.

FIG. 14 is a partially broken perspective view for explaining the inside of a housing in which a dichroic reflecting mirror is placed.

FIG. 15 is a schematic side view of the stereoscopic image optical device according to the third embodiment, with the side surface removed and viewed from the side.

FIG. 16 shows a stereoscopic image optical device 1015 shown in FIG.
FIG. 2 is a partially broken perspective view for explaining the inside of FIG.

FIG. 17 is a schematic side view of the stereoscopic image optical device according to the fourth embodiment when the ceiling surface is removed and viewed from the side.

FIG. 18 is a schematic side view of a conventional stereoscopic image optical device, with the side surface removed and viewed from the side.

FIG. 19 is a schematic view of a conventional stereoscopic image optical device using a reflecting mirror, with a ceiling surface removed and viewed from directly above.

[Explanation of symbols]

 5 Window 8 Convex Fresnel Lens 9 Doll 10 Illumination 11 Case 12 Illusion Image 13 Convex Fresnel Lens Holder 14 Follower Rack 15 Drive Gear 16 Motor 17 Subject Moving Table 18 Follower Rack 19 Subject Rotary Table 20 Follower Rotary Gear 21 Hanging Thread 22 Fixed ring 23 Ventilation port 24 Light shielding plate 25 Forced fan 26 Insect prevention net 27 Handle 28 Ventilation port 29 Dichroic reflector 30 Guide pipe 31 Aperture 32 Aperture holder 33 Shaft 34 Moving lever

Claims (16)

[Claims] 1. A stereoscopic image optical apparatus for presenting a three-dimensional illusion image of an object to an observer in a free space different from the position of the object, comprising: a housing having a window and accommodating the object; And at least one convex Fresnel lens provided so that the lens surface is parallel to the window, and image changing means for changing the appearance of the illusion image, wherein the subject is inside the convex Fresnel lens. The stereoscopic image optical device, wherein the free space is a space between an observer and the window. 2. The stereoscopic image optical device according to claim 1, wherein said image changing means is means for moving said convex Fresnel lens along an optical axis between said subject and said convex Fresnel lens. A stereoscopic image optical device characterized by the following. 3. The stereoscopic image optical device according to claim 1, wherein said image changing means is means for moving said subject along an optical axis between said subject and said convex Fresnel lens. Stereoscopic image optical device. 4. The stereoscopic image optical device according to claim 1, wherein said image changing means is means for rotating said subject. 5. The stereoscopic image optical device according to claim 2, wherein the image changing unit can change a speed at which the illusion image changes. 6. The stereoscopic image optical device according to claim 1, wherein the image changing means is means for suspending the subject from a ceiling of the housing so as not to contact the Fresnel lens. Imaging optics. 7. The stereoscopic image optical device according to claim 1, wherein the subject includes a screen, a screen, a liquid crystal panel, or a cathode ray tube display having a light emitting property. Stereoscopic image optical device. 8. The stereoscopic image optical device according to claim 1, further comprising: an illumination for irradiating the subject in the housing when the subject does not emit light. 3D image optical device. 9. The three-dimensional image optical device according to claim 1, wherein the casing has at least one ventilation port, and the three-dimensional image optical device includes a light from the ventilation port. A stereoscopic image optical device comprising: means for preventing intrusion of light. 10. The three-dimensional image optical device according to claim 9, further comprising a fan that promotes replacement of air in the housing through the ventilation port. 11. The three-dimensional image optical apparatus according to claim 9, further comprising a unit for preventing insects from entering through the ventilation port. 12. The stereoscopic image optical device according to claim 1, wherein the housing further comprises: a handle for carrying; and at least one ventilation port provided on the handle. A stereoscopic image optical device, comprising: 13. The stereoscopic image optical device according to claim 8, wherein the illumination is a lamp having a dichroic reflector, wherein the housing has at least one ventilation opening, A stereoscopic image optical device, comprising: a guide pipe extending from the vicinity of a rear portion of the reflector to the ventilation port to discharge temperature-raised air due to light energy transmitted by the reflection mirror from the ventilation port. . 14. The stereoscopic image optical device according to claim 1, further comprising a stop arranged between the convex Fresnel lens and the subject. 15. The stereoscopic image optical device according to claim 14, wherein the stop is movable along an optical axis between the object and the convex Fresnel lens. 16. The stereoscopic image optical device according to claim 1, wherein the plurality of windows are provided, and at least one of the convex Fresnel lenses is provided inside the window. A stereoscopic image optical device characterized by the following.