JPH06110014A - Spectacle type video display device - Google Patents

Abstract

PURPOSE:To place an image at a proper position in front of the eyes and make the image easy to see by improving the optical system of the spectacle type video display device which is put on the head like a pair of glasses to see the image. CONSTITUTION:This device is provided with a square main body part 11 having a curved surface which is gentle along the front surface of the head part and temple parts 12 on both the sides of the main body part 11; and the main body part 11 is open at face-side positions of both the eyes and oculars 13 are provided at the opening parts. Mirrors 14 are provided at top-surface side positions in the main body part in front of both the eyes respectively and the reflecting surfaces of the mirrors 14 are directed so that the line of sight are reflected by the mirrors 14 to right beside the center face side in the main body part. In the center of the main body part 11, a prism in a isosceles triangular prism shape is provided vertically having the base of the triangle on the face side, and the vertical angle of the isosceles triangular prism is equal to the angle at which the glances reflected by the mirrors 14 are transmitted through the isosceles surface of the prism 15, reflected by the opposite isosceles surface, and made incident on the base surface; and the video display surface of a small-sized video display part 16 is provided on the base surface of the triangle of the prism 15 while facing the prism 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spectacle-type image display device capable of viewing an image on the head like glasses.

[0002]

2. Description of the Related Art Japanese Laid-Open Patent Publication No. 1-1334 discloses a display device capable of viewing an image on the head like glasses.
In No. 79, the light emitting part of the TV is arranged so as to be the blind spot of both eyes, and a long trapezoidal reflector is arranged below it at the position where the blind spots of both eyes are arranged, and the emitted television image is reflected by the mirror. There is disclosed a visual device which is reflected by a mirror and is reflected by a concave mirror, and is arranged so that the concave mirror just focuses the light on both eyes, and these are detachably attached to the head like ski goggles.

[0003]

Although the above-mentioned visual device is a headphone type television that can be worn on the head,
The emitted television image is located between the eyes just in front of the nose, which is the blind spot of both eyes, and the television image is reflected by a concave mirror to see a large image with both eyes. The distance is only about 3 cm, and it is impossible for the reflector of this width to make it visible to both eyes even if the image is magnified by the concave mirror. In view of this, the present invention provides an eyeglass-type image display device in which an optical system for image display is improved so that an image is placed at an appropriate position in front of the eye for easy viewing.

[0004]

[Means for Solving the Problems]

B) A rectangular main body 1 with a gentle curved surface along the front of the head
1, and ear hooks 12 and 12 are provided on both sides of the main body 11. B) Both eyes on the face side of the body are open,
An eyepiece lens 16 is provided in the opening. C) Square mirrors 14 and 14 are provided in front of both eyes on the surface side inside the main body, and the reflection surfaces of the mirrors reflect the line of sight to the center of the inside of the main body at the mirrors 14 and 14. Turn in the direction you want to. D) An isosceles triangular prism 15 is provided at the center of the main body 11 so that the bottom of the triangle faces the face, and the angle of the apex of the isosceles triangular prism is reflected by the mirrors 14 and 14. The angle at which the line of sight passes through the isosceles surface of the prism, is reflected by the isosceles surface on the opposite side, and is incident on the bottom surface. (E) Image display of the small image display unit 16 on the bottom surface of the triangle of the prism. The surface is provided facing the prism 15. The eyeglass-type image display device having the above configuration is provided.

[0005]

The operation of the above configuration is as follows. An observer wearing a spectacle-type image display device sees his line of sight through an eyepiece lens.
You will see each mirror in front of you, in which the line of sight is reflected by the prism, and in this prism the line of sight is reflected by the bottom surface of the prism, you can see the image on the image display unit with both eyes. Become.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 1 is a diagram showing the state of use of the eyeglass-type image display device of the present invention. When the eyeglass-type image display device 10 is used, it is put on the face portion 1 of the human body like eyeglasses. Then, the TV tuner 20 and the battery box 30 are attached to the waist belt 2, and the connection cords 21 and 3 are respectively attached.
At 1, the eyeglass-type image display device 10 is connected. As a result, the image from the television tuner 20 can be observed on the eyeglass-type image display device 10.

FIG. 2 is a perspective view of the eyeglass-type image display device. FIG. 3 is a plan view of an optical system of the eyeglass-type image display device.

The spectacle-type image display device 10 includes a rectangular main body 11 having a gentle curved surface along the front surface of the head, and the main body 1.
Ear hooks 12 and 12 are attached to both sides of 1. The binocular position corresponding to the face side on the back surface of the main body is open, and eyepieces 13 and 13 are provided in the openings. At the front side position in the main body part in front of both eyes,
Square mirrors 14 and 14 are provided, respectively, and the reflecting surfaces of the mirrors are at an angle of about 45 degrees when viewed from the plane so that the line of sight when looking at the front is reflected by the mirrors 14 and 14 in the direction directly in the center of the main body. It is installed vertically. In the center of the main body 11, an isosceles triangular prism 15 is erected upright with the base of the triangle facing the face, and the line of sight reflected by the mirrors 14 and 14 is transmitted through the isosceles surface of the prism. The light is reflected by the isosceles surface and enters the bottom surface. On the bottom surface of the prism 15, a small image display unit 16 made of an LCD (Liquid Crystal Display) is attached with the display surface facing the prism.

An observer wearing the spectacle-type image display device 10 having the above-described optical system can see the line of sight of the eyepiece lens 13,
Each of the mirrors 14 and 14 in front of the eye is seen through 13, and the line of sight is made incident on the isosceles surface of the prism 15 at the mirrors 14 and 14, and at the prism 15 at the opposite isosceles surface. The line of sight is reflected on the bottom surface of the prism,
The image on the image display unit 16 provided on the bottom surface of the prism is viewed with both eyes.

In FIG. 1, a drive circuit board 17 for driving the image display unit 16 is arranged on the upper surface of the main body 11, and tuner jacks 2 are provided on the left and right of the front of the main body.
2. A battery jack 32 is provided and connected to the drive circuit board 17.

Although not shown, an earphone may be provided so that the sound can be heard. Incidentally, the mirrors 14, 1
If 4 is used as a half mirror so that the surface of the main body 11 can be seen through, the outside scenery can be seen while watching the image displayed on the image display unit 16, so that the image can be viewed while walking. . Further, the eyepiece lens 12 may be a Fresnel lens. When using the glasses-type image display device 10, it is possible to enjoy the game image by using the TV tuner 20 as a main body of a portable video game machine. Further, it is possible to incorporate a video game machine in the glasses-type image display device itself.

[0012]

As described above, the eyeglass-type image display device of the present invention can be worn by the observer wearing the main body like eyeglasses. Since the image display is projected in front of the eyes and the image displayed on the image display unit is reflected twice, the image entering the observer's eye is not an inverted image but an upright image. Furthermore, since the eyes can be viewed with both eyes without difficulty, the eyes are less tired. Therefore, the optical system for displaying the image is improved, and the image is placed in an appropriate position in front of the eye for easy viewing.

[Brief description of drawings]

FIG. 1 is a view showing a usage state of an eyeglass-type image display device of the present invention.

FIG. 2 is a perspective view of an eyeglass-type image display device.

FIG. 3 is a plan layout view of an optical system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Face part of human body 2 ... Belt 10 ... Glasses type image display device 11 ... Main body part 12 ... Ear part 13 ... Eyepiece 14 ... Mirror 15 ... Prism 16 ... Image display part 17 ... Drive circuit board 20 ... TV tuner 22 … Tuner jack 30… Battery box 32… Battery jack

Claims (1)

[Claims] 1. A main body of a rectangular body having a gentle curved surface along the front surface of the head, and ear hooks provided on both sides of the main body, and the binocular positions on the face side of the main body are respectively opened. Eyepieces are provided in the openings, and mirrors are provided in front of both eyes at the front surface side positions in the main body. The reflection surface of the mirrors has a line of sight reflected right next to the center inside the main body by the mirrors. In the center of the main body portion, an isosceles triangular prism is provided vertically with the base of the triangle facing the face, and the angle of the apex of the isosceles triangular prism is the line of sight reflected by the mirror. At the angle of transmitting light through the isosceles surface of the prism, reflecting at the isosceles surface on the opposite side and entering the bottom surface, the image display surface of the small image display unit is directed to the prism on the bottom surface of the triangle of the prism. An eyeglass-type image display device, characterized in that