JP3012505U - Display device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a display device capable of exhibiting an excellent stereoscopic effect and a realistic sensation by combining a concave reflecting mirror and a harf mirror. [Structure] Place the Hafmira-9 in front of the observer and
A stereoscopic image or image is projected on the reflecting surface side of the Fumilla-9, and a concave reflecting mirror 8 is arranged on the back side of the harmylar-9 toward the observer. Or an observation window 1 which is used to project an image and is provided on the front side of the harf mirror 9
A real image formed in space by the concave reflecting mirror 8 and a physical image or video screen imaged by the half mirror 9 are observed as a visually synthesized image through 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a stereoscopic display device as a display device used for learning, entertainment services, advertisement and the like.

[0002]

[Prior art]

 Recently, this type of device gradually changes from a two-dimensional display to a three-dimensional three-dimensional display, and as a moving three-dimensional display device, an optical display means including a dynamic element such as a movie or a television is used. It's coming. In particular, a number of stereoscopic display devices have been proposed that combine a still image and a moving image by utilizing a half mirror and a concave mirror.

As a device for providing a composite image device that obtains a stereoscopic effect by combining an image of a projector and a real object using a harf mirror, for example, JP-A-60-84573 and JP-B-6-34143 are disclosed. It has been known.

With respect to those using a concave reflecting mirror, Japanese Utility Model Publication No. 62-199791, Japanese Utility Model Publication No. 5-44810, Japanese Utility Model Publication No. 5-33118 are known.

For the purpose of learning, these display devices display a video tape recording the movements of the celestial bodies and the earth, the ecology of various animals and plants on a television screen, and synthesize it with a background stereo model or a static image. Is being used.

However, these display devices see a real image of a projection image formed by superimposing a two-dimensional image and a stationary stereoscopic image through a half mirror or floating in space by a concave reflecting mirror. It is undeniable that the image itself lacks the stereoscopic effect of the image itself and the overall presence of the display screen.

[0007]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a display device capable of exhibiting an excellent stereoscopic effect and a realistic sensation by combining a concave reflecting mirror and a Hafmirer.

[0008]

[Means for Solving the Problems]

 This invention is a combination of a concave reflecting mirror and a half mirror, in which a half mirror is provided in the reflection optical axis of the concave reflecting mirror, and a solid image or a solid image is formed toward the concave reflecting mirror and the half mirror. The image is projected, and the real image of the projection surface, which is imaged in space by the concave reflecting mirror, and the actual image or the mirror image of the projection surface, which is projected by the harf mirror, are observed as a visually combined image.

[0009]

[Action]

 According to this invention, the visual formation directions of the real image formed by the half mirror or the image of the image screen and the real image formed in space by the concave reflecting mirror are opposite to each other, so that the real image and the mirror image are formed. It is possible to give a viewer a very large stereoscopic sensation even when the depth of the display device is relatively narrow, and a stereoscopic display device with a realistic sensation can be obtained.

[0010]

【Example】

 The invention will be described below with reference to the drawings. 1 is a sectional view of the main part of the present invention, FIG. 2 is a front view of a display device, and FIG. 3 is a plan view thereof.

The display device mainly includes a gantry 1, a mirror box 2, and a video box 3. The gantry 1 has a power supply device 4, a slide projector 5, and a dark box 6 for projection with an inner surface coated with black paint for preventing reflection or a black bead lining. Configure the table.

A viewing window 11 is provided in the mirror box 3, and a concave reflecting mirror 8, a half mirror 9 and a television device 10 are provided in the mirror box 3 coated with black coating for antireflection. Has been. The concave reflecting mirror 8 is formed of a black mirror surface of a substantially 1 / 4-divided sphere, and has an engaging hook portion 8a formed at the upper end portion. The concave reflecting mirror 8 is hung by being hooked on the locking piece 12 provided on the inner wall of the mirror box 2 by the locking key portion 8a. The lower end of the concave reflecting mirror 8 is supported by the lower support member 13 provided in the mirror box 2. By adopting such locking means, it is possible to prevent the concave reflecting mirror 8 from being distorted due to the tightening of the reflector fixing metal fitting, and to obtain a high-quality image without distortion. The height of the lower support member 13 is variable by using a well-known adjusting mechanism (not shown), such as an adjusting screw or a wedge, so that the inclination of the concave reflecting mirror 8 can be adjusted. Normally, the central axis of the television apparatus 10 is tilted upward by about 30 ° with respect to the horizontal axis of the mirror box, the television apparatus 10 is installed in parallel with the central axis and toward the reflecting surface of the concave reflecting mirror 8. The screen position of the television device 10 is preferably arranged so as to be located near the center of the curvature of the concave reflecting mirror.

Reference numeral 9 denotes a half mirror provided within the reflection optical axis of the concave reflecting mirror 8 and having a reflection film formed by vapor-depositing or anodizing a titanium oxide thin film on a glass plate having a thickness of about several millimeters. The reflective film surface 14 is attached downward. This reflective film is manufactured to have a reflectance of 30% and a transmittance of 45%, but the ratio is actually adjusted according to the brightness of the image or object placed on both sides of the half mirror. It is something. Reference numeral 15 is a mask which is anti-reflective with black paint or the like and constitutes a field frame for observation.

A disk player or a video recorder 16 is provided in the mirror box 3, and an upper cover 18 having a ventilation port 17 is opened and closed in a flip-up manner.

With the above configuration, the slide projector 5 and the screen of the television device 10 are displayed from the viewing window 11 of the mirror box 3 via the half mirror 9 provided in the reflection optical axis of the concave reflecting mirror 8. Can be observed as a visually synthesized image.

More specifically, the image of the slide projector 5 is reflected by the reflection film surface 14 of the half mirror 9 toward the viewing window 11 and the observer can see the mirror image at the position A.

On the other hand, the screen of the television device 10 is reflected by the concave reflecting mirror 8 and passes through the harf mirror 9 from the back side, and the observer displays the inverted real image of the television screen at the position B inside the viewing window. You can see.

Further, the image of the article placed on the article placing table 7 is reflected by the reflection film surface of the half mirror 9 in the direction of the viewing window 11, and the observer can see the mirror image at the position C. .

Therefore, the images of A, B, and C can be observed as a visual composite image in which the images of A, B, and C are superposed as images having different depths on the eyes of the observer looking through the viewing window 11. The person can obtain a large stereoscopic effect.

For example, when the screen of the outer space is placed on the mounting table 11, the slide of the Jupiter or the moon is projected from the slide projector, and the operation video of the space exploration satellite or the space rocket is displayed on the TV screen, The image B of a satellite or rocket emerges in the space in front of the observer against Jupiter or the Moon A floating in the space section C far behind, and a stereoscopic sensation full of realism can be obtained.

[0021]

[Effect of device]

 According to this invention, the combination of the half mirror and the concave reflecting mirror makes the direction of the mirror image observed by the half mirror and the direction of the position of the real image formed by the concave reflecting mirror opposite to each other. Therefore, it is possible to obtain a stereoscopic sensation that cannot be obtained by a conventional stereoscopic sensation apparatus in the same direction using only a half mirror or a concave reflecting mirror.

According to this invention, the sense of distance in the depth direction of the superimposed images can be adjusted arbitrarily by changing the distance between the slide projector and the mounting table with respect to the half mirror. There is no need to deepen the depth itself.

Therefore, it is possible to obtain a display device which is relatively thin and compact and has an excellent stereoscopic sense.

[Brief description of drawings]

FIG. 1 is a sectional view of a main part of a display device according to the present invention.

FIG. 2 is a front view of the display device of the present invention.

FIG. 3 is a plan view of the display device in FIG.

[Explanation of symbols]

 5 Slide Projector 7 Article Placement Table 8 Concave Reflector 9 Harm mirror 10 Television System 11 Viewing Window 12 Locking Piece 14 Reflective Film Surface

Claims (7)

[Scope of utility model registration request] 1. A half mirror within a reflection optical axis of a concave reflecting mirror.
The stereoscopic image or image is projected toward the concave reflecting mirror and the harf mirror, and the real image or the image screen projected by the harf mirror is visually combined with the real image formed in space by the concave reflecting mirror. A display device characterized by being observed as an image. 2. A hafmirer is arranged in front of an observer, a stereoscopic image or a video image is projected on the reflecting surface side of the hahmiller, and a concave reflecting mirror is arranged on the back side of the hahmirror toward the observer. Then, the actual image or image is projected toward the reflecting surface of this concave reflecting mirror, and is projected by the real image and the half mirror formed in the space by the concave reflecting mirror through the observation window provided on the front surface of the half mirror. 2. The display device according to claim 1, wherein the displayed stereoscopic image or video screen is observed as a visually synthesized image. 3. The display device according to claim 2, wherein the half mirror is arranged with the reflection film surface facing downward. 4. The display device according to claim 2, wherein the concave reflecting mirror is a black concave mirror. 5. The display device according to claim 2, wherein the concave reflecting mirror is supported by a locking piece provided on a wall of the display device. 6. The display device according to claim 2, wherein the image projected on the half mirror is an image on a television screen or a slide projector. 7. The display device according to claim 2, wherein the image projected on the concave reflecting mirror is a television screen or an image projected by a slide projector.