JPH04253022A - Stereoscopic viewing device - Google Patents

Abstract

PURPOSE:To offer a stereoscopic viewing device which enables an observer to easily sense a three-dimensional image without feeling troublesome. CONSTITUTION:The light emitted by a light source 12 is reflected by a reflecting mirror 14. The reflecting mirror 14 has a concave reflecting surface 16. An object image body 18 for the left eye and an object image body 20 for the right eye are arranged in front of the reflecting surface 16 of the reflecting mirror 14. The object image body 18 for the left eye consists of a film where an image for the left eye is drawn. The object image body 20 for the right eye consists of a film where an image for the right eye is drawn. The images for the left eye and right eye have mutually different parallelax information. The transmitted light of the object image body 18 for the left eye and the transmitted light of the object image body 20 for the right eye are made incident on one surface of a directional transmission screen 22 consisting of a convex lens. The directional transmission screen 2 images a light image corresponding to the image of the left-eye object image body 18 on the left eye 24 and a light image corresponding to the image of the right-eye object image body 20 on the right eye 26.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stereoscopic viewing device that allows an observer to perceive a three-dimensional image by providing optical images corresponding to each of the left and right eyes.

0002

2. Description of the Related Art Conventionally, a stereoscopic viewing device that allows an observer to perceive a three-dimensional image by providing optical images corresponding to each of the left and right eyes has been used. a projection means, a second projection means for projecting on the screen a right-eye image that is polarized by 90 degrees with respect to the left-eye image, and a second projection means for transmitting light corresponding to the left-eye image projected on the screen. Some glasses include polarized glasses having a left-eye polarizing plate and a right-eye polarizing plate that transmits light corresponding to the right-eye image projected on the screen.

[0003] When using a conventional stereoscopic viewing device, an observer views images projected on a screen while wearing polarized glasses. The images for the left eye and the images for the right eye are polarized by 90 degrees, so that the image given to the observer's left eye through the left eye polarizing plate and the image given to the right eye through the right eye polarizing plate are different from each other. Since the light is polarized by 90 degrees, the viewer perceives the image projected on the screen as a three-dimensional image.

0004

[Problems to be Solved by the Invention] However, when an observer performs other tasks while viewing a stereoscopic image using a conventional stereoscopic viewing device, the observer's surroundings may become distorted due to the observer wearing polarized glasses. This makes it difficult to see the scenery, making it difficult for workers to take off their polarized glasses every time they perform other tasks, which is a hassle for workers.

SUMMARY OF THE INVENTION An object of the present invention is to provide a stereoscopic viewing device that allows an observer to easily perceive a three-dimensional image without causing any discomfort.

[0006]

[Means for Solving the Problems] The present invention is a stereoscopic viewing device that allows an observer to perceive a three-dimensional image by providing light images corresponding to each of the left and right eyes. a reflecting mirror that reflects the light reflected by the reflecting mirror; a left-eye object disposed on the optical path of the light reflected by the reflecting mirror and on which an image representing the left-eye optical image is recorded; A right-eye object is arranged on the optical path of the light at a distance from the left-eye object, and an image representing the right-eye light image is recorded, and corresponds to an image of the left-eye object. and a light image corresponding to the image of the right-eye subject, and the imaging position of the light image corresponding to the image of the left-eye subject and the light corresponding to the image of the right-eye subject. It includes a directional transmission screen whose images are formed at different positions.

[0007]

[Operation] When using the stereoscopic viewing device of the present invention, the observer positions his/her left and right eyes with respect to the directional transmissive screen so that the image formation positions of the corresponding directional transmissive screen coincide with the respective image forming positions of the directional transmissive screen. .

Light emitted from the light source is reflected by the reflecting mirror, and the reflected light sequentially passes through the left-eye subject, the right-eye subject, and the directional transmission screen. A light image corresponding to the image of the left eye object is focused near the left eye by the directional transmission screen, and similarly, a light image corresponding to the image of the right eye object is focused near the right eye. By being imaged, a light image corresponding to the image of the left-eye subject is given to the observer's left eye, and a light image corresponding to the image of the right-eye subject is given to the right eye of the observer. The image of the left-eye subject and the image of the right-eye subject cooperate with each other so that the viewer can perceive the image as a three-dimensional image.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the stereoscopic viewing apparatus of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram showing an embodiment of a stereoscopic viewing apparatus of the present invention.

The stereoscopic viewing device 10 includes a light source 12, as shown in FIG. The light emitted from the light source 12 is reflected by the reflecting mirror 1
It is reflected at 4. The reflecting mirror 14 has a concave reflecting surface 16.

In front of the reflecting surface 16 of the reflecting mirror 14, a left eye object 18 and a right eye object 20 are arranged. The left eye object 18 is made of a film on which a left eye image is drawn. Subject 20 for the right eye
consists of a film on which a right eye image is depicted. The left-eye image and the right-eye image have different parallax information. The left-eye subject 18 and the right-eye subject 20 are arranged on the same plane with an interval between them.

A light image corresponding to the image of the left-eye subject 18 and a light image corresponding to the image of the right-eye subject 20 are projected onto a directional transmission screen 22 . The directional transmission screen 22 is composed of a convex lens, and the convex lens is arranged so that its optical axis is orthogonal to the plane in which the left-eye subject 18 and the right-eye subject 20 are arranged. The transmitted light of the left-eye subject 18 and the transmitted light of the right-eye subject 20 enter the directional transmission screen 22 from one surface thereof. The directional transmission screen 22 has an optical image corresponding to the image of the left eye object 18 and a right eye object 20 on the other side.
A light image corresponding to the image is formed. The imaging position of the light image corresponding to the image of the left-eye subject 18 and the imaging position of the light image corresponding to the image of the right-eye subject 20 are different from each other.

When using the stereoscopic viewing device 10, the viewer positions the left eye 24 and the right eye 26 with respect to the directional transmissive screen 22 so that each of the left eye 24 and right eye 26 coincides with the image forming position of the corresponding directional transmissive screen 22. .

The light emitted from the light source 12 is reflected by the reflecting surface 16 of the reflecting mirror 14, and the reflected light is reflected by the left eye object 18.
and a right eye subject 20 and a directional transmission screen 2
2 and 2 are transmitted sequentially. The light image corresponding to the image of the left eye object 18 is formed near the left eye 24, and the light image corresponding to the image of the right eye object 20 is formed near the right eye 26, so that observation is possible. The left eye 24 of the person is given a light image corresponding to the image of the left eye subject 18, and the right eye 26 is given a light image corresponding to the image of the right eye subject 20. The image 18 and the image of the right-eye subject 20 cooperate with each other to allow the viewer to perceive the image as a three-dimensional image. As a result, there is no need to use polarized glasses or the like, and the viewer is not bothered.

[0015]

According to the stereoscopic viewing apparatus of the present invention, the image of the object for the left eye is formed near the left eye by the directional transmission screen, and similarly, the image of the object for the right eye is formed near the left eye. By forming the image near the right eye, the observer's left eye is given an optical image corresponding to the image of the left-eye subject, and the right eye is given an optical image corresponding to the image of the right-eye subject. Since the image of the left-eye object and the image of the right-eye object cooperate with each other, the image expressed by the observer is perceived by the observer as a three-dimensional image, which eliminates the trouble caused by wearing polarized glasses or the like. It is possible to easily make the viewer perceive a three-dimensional image without giving any distortion.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram showing an embodiment of a stereoscopic viewing device of the present invention.

[Explanation of symbols]

10 Stereoscopic device 12 Light source 14 Reflector 18 Subject for left eye 20 Right eye object 22 Directional transmission screen

Claims (1)

[Claims] 1. A stereoscopic viewing device that allows an observer to perceive a three-dimensional image by providing light images corresponding to each of the left and right eyes, the device comprising: a light source; a reflecting mirror that reflects light emitted from the light source; , a left-eye subject disposed on the optical path of the light reflected by the reflecting mirror, on which an image representing the left-eye optical image is recorded; and a left-eye object disposed on the optical path of the light reflected by the reflecting mirror; a right-eye subject, which is arranged at a distance from the right-eye subject, and on which an image representing the right-eye light image is recorded, and a light image corresponding to the image of the left-eye subject and the right-eye subject. A light image corresponding to the image of the image object is projected, and an image formation position of the light image corresponding to the image of the left eye object and an image formation position of the light image corresponding to the image of the right eye object are mutual to each other. A stereoscopic viewing device comprising a different directional transmission screen.