JPH11174370A - Head-mounted video display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stably support a device main body for displaying a video on the head of an observer. SOLUTION: This head-mounted video display device 11 is constituted of the device main body 12 for displaying video, a front frame 13 supporting the device main body 12, and side frames 14 coupled with the right and left sides of the frame 13 through a hinge part 16 and extended to the vicinity of the ear from the vicinity of the temple of the observer. In the device 11, a front-of- head pressing means 18 pressing the vicinity of the front of the head of the observer is provided in the almost center part of the frame 13 and a pair of back-of-head pressing means 19 pressing the vicinity of the back of the head of the observer is provided on the frames 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video and television image displayed on a pair of display elements mounted on a head of an observer and enlarged in front of the observer's eyes via a pair of observation optical systems. The present invention relates to a head-mounted image display device for displaying.

[0002]

2. Description of the Related Art Conventionally, this type of head-mounted image display device is also called a head mounted display (HMD), which enlarges and projects an image of a video, a television or the like in front of an observer, and outputs a sound to the observer. It is designed to entertain the video with. For example, as shown in FIG. 7, the image display device 1 includes an apparatus main body 2 that displays an image in front of the observer M, and a pair of side frames 3 and 4 that support the apparatus main body 2 in front of the observer M. The side frames 3 and 4 are connected to both sides of the frame 5 of the apparatus main body 2 via hinges 6 and 7, respectively. In the center of the lower side of frame 5, the inverted V
A nosepiece 5a having a V-shape is provided, and a reflector (not shown), a fluorescent tube, a liquid crystal display, a deflecting plate (not shown) for enlarging and guiding an image in front of the observer M is provided inside the frame 5.
Optical members such as a condenser lens and an eyepiece are housed therein.

[0003]

However, in the above-described conventional image display apparatus 1, since the apparatus main body 2 accommodates a large number of optical members, the weight of the apparatus main body 2 increases, and the nose of the observer M is increased. However, there is a problem that a trace of the nose pad 5a of the frame 5 is left. When the observer M faces downward or moves violently in the virtual reality game, the apparatus main body 2 moves from an appropriate position, removes the field of view of the observer M from the visual field frame F, and sets the observer M There is also a problem that the video display device 1 is re-mounted.

On the other hand, in order to prevent the movement of the apparatus body 2,
It is also possible to replace the side frames 3, 4 with belts. However, in a video display device having a belt,
In addition to making it difficult for the observer M to wear the device, there is a problem that the hair of the observer M is often disturbed when the image display device is worn, and is not particularly preferred by women.

An object of the present invention is to solve the above-mentioned problems,
An object of the present invention is to provide a head-mounted image display device capable of stably supporting an image display device body on an observer's head.

[0006]

According to the present invention, there is provided a head mounted image display apparatus for displaying an image, a front frame supporting the apparatus main body, and a front face. In a video display device having a side frame connected to the left and right of the frame via a hinge portion and extending from the vicinity of the temple of the observer to the vicinity of the ear, the forehead pressing means for pressing the vicinity of the forehead of the observer is provided on the front frame. And a pair of occipital region pressing means for pressing the vicinity of the occipital region of the observer are provided on the side frames, respectively.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the embodiments shown in FIGS. FIG. 1 is a side view of an embodiment of a head-mounted image display device 11 mounted on an observer M. The image display device 11 includes an eyeglass unit and a device main body 12 having a substantially box-shaped outer shape. Provided, this device body 1
2 is rotatably supported by a substantially bow-shaped front frame 13. On both sides of the front frame 13, the side frames 14, 1 extending from near the temple of the observer M to near the ears.
5 (the side frame 15 is not shown) are connected via respective hinge portions 16 and 17 (the hinge portion 17 is not shown). A forehead pressing means 18 for pressing the forehead of the observer M is attached to the upper part of the front frame 13, and a pair of occipital pressing means for pressing the back of the observer M to the rear ends of the side frames 14 and 15. 19 and 20 (the means 20 are not shown) are respectively attached.

FIG. 2 is a perspective plan view of the apparatus main body 12.
In the inside of the box member 31 of the apparatus main body 12, for example, a video,
Various optical members for enlarging and projecting an image of a television or the like into a hollow in front of the eyes E of the observer M are arranged. That is, a fluorescent tube 33 is disposed above the reflecting mirror 32, and a pair of color liquid crystal displays 34 are provided on both sides of the reflecting mirror 32.
35 are erected. In addition, the liquid crystal display 34,
Behind 35, convex condensing lenses 36 and 37 are provided via respective deflecting plates 38 and 39 for the liquid crystal display 34,
35 are arranged substantially integrally with each other. A pair of convex eyepieces 40 and 41 are arranged on both eyes E, and a pair of rectangular plate-like reflecting mirrors 42 are provided between the condenser lenses 36 and 37 and the eyepieces 40 and 41. 43 are arranged respectively.

On the other hand, the forehead pressing means 18 is
The distance between the eye and the eyes E of the observer M is maintained at a predetermined value, and the apparatus main body 12 is stably supported on the observer M's head in cooperation with the occipital region pressing means 19 and 20. One end of the connecting member 51 of the forehead pressing means 18 is connected to the front frame 1
3 is fixed by screws or the like, and a storage member 52 is rotatably supported at the other end of the connecting member 51. Storage member 52
A front frame (not shown) urged toward the forehead by a spring member (not shown), and a sponge-like elastic member 53 supported on one surface or the periphery of the front frame and in contact with the head of the observer M. Is stored. The elastic member 53 of the forehead pressing means 18 and the later-described elastic members of the occipital pressing means 19 and 20 cooperate to form a substantially circular shape slightly smaller than the head circumference of the observer M. .

The occipital region pressing means 19 and 20 are symmetrical. As shown in the perspective view of the main part of FIG. 3 and the vertical sectional view of the main part of FIG. 4, for example, in the right occipital region pressing means 19, the flapper 61 is provided on the side frame 14 in the inward and outward directions of the head of the observer M. A is rotatably connected to A, and a tilting member 62 is attached to the flapper 61 so as to follow the head shape of the observer M. Then, the tilting member 62
An elastic member 63 similar to the elastic member 53 of the forehead pressing member 18 is fixed to the surface of the head.

The side frame 14 and the flapper 61 are connected in the same configuration as the flange portion 16 between the apparatus main body 12 and the side frame 14, and the shaft 1 formed on the side frame 14 is formed.
A torsion coil spring 64 is supported by 4a. One end of the coil spring 64 is locked by the locking portion 14b of the side frame 14, and the other end of the coil spring 64 is locked by the locking portion 6 of the flapper 61.
1a, the flapper 61 is urged by a coil spring 64 to an initial position corresponding to the longitudinal direction of the side frame 14. The spherical projection 62a formed on the tilting member 62 is engaged with the cylindrical portion 61b formed on the flapper 61 with a light friction.

With such a configuration, the observer M can place the elastic member 53 of the forehead pressing means 18 and the occipital pressing means 1 on the head.
When the image display apparatus 11 is mounted such that the elastic members 63 of the occipital regions 9 and 20 abut against each other, the elastic members 53 of the forehead pressing unit 18 and the elastic members 63 of the occipital region pressing units 19 and 20 cooperate with each other. Since it has a substantially circular shape slightly smaller than the head circumference of M, the elastic member 63 is pressed by the head, the flapper 61 is rotated out of the initial position, and the resilient force is applied to the coil spring 64. Occurs. This resilient force urges the tilting member 62 toward the head via the flapper 61, causing the tilting member 62 to follow the head of the observer M, and bringing the elastic member 63 into a comfortable state on the head of the observer M. Press in with.

The elastic member 53 of the forehead pressing means 18
And the elastic members 63 of the occipital region pressing means 19 and 20 are pressed against the head of the observer M at three equally spaced points, so that the apparatus main body 12 is stably held via the side frames 14 and 15 and the front frame 13. I can support it. Therefore, the apparatus main body 12 does not come into contact with the nose of the observer M, and no trace is left on the nose. Further, even if the observer M faces downward or moves violently in a virtual reality game, the apparatus main body 12 does not move from an appropriate position.

FIG. 5 is a plan view of the second embodiment in which a part of a main part is cut away, and FIG. 6 is a longitudinal sectional view of the main part. I have. In the occipital region pressing means 72, a flapper 73 is attached to the side frame 71 so as to be pivotable and tiltable in the inward and outward directions B of the head of the observer M. The flapper 73 has an elastic member 74 similar to the elastic members 53 and 63 described above. Is fixed.

A spherical projection 71 a formed on the side frame 71 is engaged with a cylindrical portion 73 a formed on the flapper 73, and the flapper 73 is rotatable with respect to the side frame 71. Further, tension coil springs 75 and 76 are respectively stretched between a pair of engaging projections 71b and 71c formed on the side frame 71 and the engaging projections 73b and 73c formed on the flapper 73. The retaining projections 71b and 71c and the retaining projections 73b and 73c are formed with retaining portions 71d and 71e and retaining portions 73d and 73e, respectively, for preventing the tension coil springs 75 and 76 from coming off. . Light friction is applied between the protrusion 71a of the side frame 71 and the cylindrical portion 73a of the flapper 73, and the flapper 73 is urged to an initial position corresponding to the longitudinal direction of the side frame 71.

In the second embodiment, the occipital region pressing means 7
The second flapper 73 is positioned on the side frame 71 by the observer M.
Of the head of the observer M at three points because the head can be rotated and tilted in the inward and outward directions B and is urged to the initial position by the tension coil springs 75 and 76. Thus, the same effect as in the first embodiment can be obtained.

In the first embodiment, the torsion coil spring 6
Although 4 is used, a tension coil spring having the same elasticity as the torsion coil spring 64 can be used. Further, the tilting member 62 is attached to the side frame 14 via the flapper 61, but the same elastic force as the torsion coil spring 64 is applied to the side frame 14 so that the tilting member 62 is directly attached to the side frame 14. Is also good. Further, the device main body 12 can adopt another configuration, for example, a configuration using a liquid crystal display, a prism, or the like.

[0018]

As described above, the head mounted image display apparatus according to the present invention can press the observer's head with three points, the frontal head pressing means and the pair of occipital pressing means, so that the image can be displayed. The display device main body can be stably supported on the observer's head. If the occipital region pressing means includes a tilting member that tilts so as to follow the head shape of the observer, it is possible to give the observer a comfortable wearing feeling.

[Brief description of the drawings]

FIG. 1 is a side view of a first embodiment of a video display device worn by an observer.

FIG. 2 is a perspective plan view of the apparatus main body.

FIG. 3 is a perspective view of a main part.

FIG. 4 is a longitudinal sectional view of a main part.

FIG. 5 is a plan view in which a part of a main part of the second embodiment is cut away.

FIG. 6 is a longitudinal sectional view of a main part of the second embodiment.

FIG. 7 is a side view of a conventional example mounted on an observer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Image display apparatus 12 Device main body 13 Front frame 14, 15, 71 Side frame 16, 17 Hinge part 18 Forehead pressing means 19, 20, 72 Back head pressing means 61, 73 Flapper 62 Tilting member 64 Torsion coil spring 75, 76 Extension coil spring

Claims (5)

[Claims] 1. A device main body for displaying an image, a front frame supporting the device main body, and a side frame connected to left and right sides of the front frame via hinges and extending from the vicinity of the temple of the observer to the vicinity of the ear. In a video display device having a forehead pressing means for pressing the vicinity of the forehead of the observer at substantially the center of the front frame, and a pair of occipital pressing means for pressing the vicinity of the back of the observer on the side frame. A head-mounted image display device, each of which is provided. 2. The head mounted image display device according to claim 1, wherein the occipital region pressing means includes a tilting member which tilts so as to follow the head shape of the observer. 3. The head mounted image display device according to claim 2, wherein the side frame has elasticity, and the tilting member is connected to the side frame. 4. The occipital region pressing means includes a flapper connected to the side frame so as to be rotatable inward and outward of the head and biased so as to substantially coincide with a longitudinal direction of the side frame. The head-mounted image display device according to claim 2, wherein the head-mounted image display device is connected to the flapper. 5. The occipital region pressing means includes a flapper connected to the side frame so as to be rotatable and tiltable in and out of the head and biased to substantially coincide with the longitudinal direction of the side frame. The head-mounted image display device according to claim 2, wherein the member is the flapper.