JPH0792441A - Head fitting type video display device - Google Patents

Abstract

PURPOSE:To provide a head fitting type video display device capable of easily executing fitting work in a short time. CONSTITUTION:A video display part for a left eye 1L leading a video to the left eyeball of an observer and a video display part for a right eye 1R for leading the video to the right eyeball of the observer are held so as to move along a band (video display part supporting member) 4 in ranges from stoppers 5L and 5R to left and right speakers 6L and 6R, respectively, adjusted in a desired fitting state and then, fixed on the back part side of the head of the band 4 by a band fastener 7. Thus, the video display parts for the left and right eyes 1L and 1R are arranged on the face part of the observer.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a head-mounted image display device for observing an image guided to the left and right eyes of an observer,
The present invention relates to a head-mounted image display device with improved wearability.

[0002]

2. Description of the Related Art A conventional example of a head-mounted image display device is disclosed in, for example, Japanese Patent Laid-Open No. 3-188777. In this conventional example, the image display unit that guides the image displayed on the image display element to the eyeball of the observer is configured by integrating the left-eye image display unit and the right-eye image display unit. The part is held by left and right bands extending from the observer's temporal region to the occipital region.

When the head-mounted image display device of this conventional example is mounted on the head of an observer, first, the engagement of the portion of the band located on the back of the head with the magic tape (product name) is released. After putting it in the open state, wear it on the head, then hold the face-side part of this head-mounted image display device with one hand and bring the image display part into contact with the face, while using the other hand to hold the occipital region. Engage and fix the velcro tape.
It is also possible to perform the band wearing work with both hands, but in that case, the weight of the LCD, the optical element, the lens frame, the electric circuit, etc. housed in the face side part of the head mounted image display device is the whole device. Since it occupies most of the weight, the face side part of the head mounted image display device that is not supported when fixing the band falls due to weight, and the image display part shifts from the eyeball and the desired wearing state is It will not be possible.

[0004]

In the above-mentioned conventional example, as described above, the work of mounting and fixing the band on the back of the observer's head must be performed with one hand and in a state where the wearing state cannot be visually recognized. It is difficult to mount the video display device.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a head-mounted image display device capable of easily realizing a desired wearing state.

[0006]

To this end, according to the structure of claim 1 of the present invention, the image display unit for the left eye for guiding the image for the left eye to the left eyeball of the observer and the image for the right eye are observed. An image display unit for the right eye that leads to the right eyeball of the observer, and an image display unit support member that holds the image display unit for the left eye and the image display unit for the right eye, and is attached and fixed to the head of the observer. Of the left-eye image display unit and the right-eye image display unit by allowing the image display unit support member to be arranged on the face portion of the observer, and the left-eye image display unit and the right-eye image display unit And a holding unit that holds at least one of the image display unit supporting member so as to be movable along the image display unit supporting member. Further, according to the configuration of claim 2 of the present invention, the image guiding the image to the eyeball of the observer is provided. The display unit and the image display unit are combined and attached to the observer's head. An image display unit support member that allows the image display unit to be arranged on the face of the observer by fixing, and a gripping force that adjusts the gripping force with which the image display unit support member holds the observer's head. It is characterized by comprising adjustment means.

[0007]

According to the configuration of claim 1 of the present invention, the left and right eyes are fixed by attaching the image display portion supporting member supporting the left eye image display portion and the right eye image display portion to the observer's head. Since the holding means holds at least one of the left and right eye image display portions so as to be movable along the image display portion supporting member when the use image display portion is arranged on the face portion of the observer, After moving the image display unit to the temporal side, the image display unit supporting member is mounted and fixed on the head, and then the image display unit is moved to a desired position (in front of the eyeball).
To place. At the time of this mounting work, the center of gravity of the entire apparatus is substantially centered on the head, so that the front, rear, left, and right of the entire apparatus can be balanced, and since it is easy to hold by hand, the mounting is easy.

According to the second aspect of the present invention,
When the image display unit supporting member combined with the image display unit is mounted and fixed to the observer's head and the image displaying unit is arranged on the face portion of the observer, the image display unit supporting member is used by the observer. A gripping force adjusting means for adjusting the gripping force for gripping the head of the user is provided, and, for example, as shown in claim 3, the mounting detection actuating means detects that the predetermined mounting state is reached when the image display supporting member is mounted. Since the gripping force adjusting means is operated, the work of covering the head with the loosened and loosened gripping force of the image display unit before mounting and fixing, and increasing the gripping force at the time of mounting and fixing. It is possible to easily perform the work of securely fixing the head-mounted image display device with both hands while holding the face-side part of the head-mounted image display device with both hands.

[0009]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a perspective view showing the configuration of a first embodiment of a head-mounted image display device of the present invention. In FIG. 1, 1
Reference numerals L and 1R denote a left-eye image display unit and a right-eye image display unit, respectively, and separate the left and right-eye image display units, which were integrated in the conventional example, from each other. Although not shown, the left-eye image display unit 1L and the right-eye image display unit 1R respectively display a liquid crystal panel for displaying an image, an optical system for guiding the displayed image to an eyeball of an observer, and a liquid crystal panel. A drive circuit and the like for driving

A pair of upper and lower guide rails (holding means) 2L and 2R are formed on the inner peripheral portions of the left-eye image display portion 1L and the right-eye image display portion 1R, respectively, and the portions below the guide rails 2L and 2R are formed. Have windows 3L and 3R for image observation. The guide rails 2L and 2R are wound around the head of the observer and used as a band (image display unit support member) 4
The band 4 holds the left-eye image display unit 1L and the right-eye image display unit 1R so as to be movable along the outer periphery of the band. Although both the left-eye image display unit 1L and the right-eye image display unit 1R are movable in the present embodiment, only one of them may be movable and the other may be fixed.

When the band 4 is worn, stoppers 5L and 5R are formed in the portions corresponding to the left and right eyes of the observer, and left and right speakers 6L and 6R are fixed to the portions corresponding to the ears of the observer when the band 4 is worn. , A band stopper 7 is fixed to the open end of the band 3, and the left and right speakers 6L and 6R are provided with curl cords 8L and 8R.
It is connected to 1R. In this configuration, the left and right eye image display units 1L and 1R are provided along the band 4 with the stoppers 5L and 5R.
To the speakers 6L and 6R can be moved.
It should be noted that the speakers 6 </ b> L and 6 </ b> R each receive an audio signal from a controller (not shown), and also input a video signal and a power supply voltage of the apparatus itself, so that the left and right eye video display unit 1 is input.
Through output is made to L and 1R.

FIGS. 2A and 2B are system diagrams illustrating a video display system configured by using the head-mounted video display device of the first embodiment, respectively. FIG. 2A shows a case of the video data reproducing system, in which the video supplying device 9 reproduces a recording medium (video tape or the like) on which the video data created by a data creating device (not shown) is played. A deck) 9a and a video processing device 9b for video processing the reproduced video data, and the signals after the video processing are input to the video display devices 1L and 1R. Further, FIG. 2B shows a case where the receiving device 10 directly receives the video data and the audio data supplied from the television broadcast.
When 0a is turned on, video data and audio data of the channel selected by the channel selection knob 10b are received and input to the video display devices 1L and 1R.

Next, a method of mounting the head-mounted image display device of the first embodiment will be described. First, before mounting, the band stopper 7 is loosened in advance to adjust the loop diameter of the band to be larger than the outer diameter of the observer's head, and the left and right image display portions 1L and 1R are shown in FIG. Thus, the speaker is moved to the vicinity of the speakers 6L and 6R. In this state, the observer puts the band 4 on the head from above, and gradually narrows the loop diameter of the band to bring it into a desired wearing state. Next, while holding this state by holding the band 4 with one hand, the band stopper 7 is fastened and fixed with the other hand. After that, the left and right eye image display portions 1L and 1R are moved to the front of the eyeball along the band 4 and positioned and fixed at a desired position by a fixing member (not shown).

In the first embodiment, since the center of gravity of the head-mounted image display device is almost at the center of the head when it is mounted, the front-rear and left-right balance of the entire device is balanced and it is easy to hold by hand, so that the mounting is easy. Is.

FIG. 3 is a perspective view showing the configuration of the second embodiment of the head-mounted image display device of the present invention. In FIG.
Reference numeral 11 denotes a video display unit in which the left-eye video display unit and the right-eye video display unit are integrated. The image display unit 11 includes left and right take-up switches 12L and 12R and a release switch 13, and is connected to the frames 14L and 14R. Left and right speakers 15L and 15R are fixed to the frames 14L and 14R, and open ends of the frames 14L and 14R are connected to a retractable band 16. Although not shown, the image display unit 11 accommodates a liquid crystal panel that displays an image, an optical system that guides the displayed image to the eyes of an observer, a drive circuit that drives the liquid crystal panel, and the like. Further, the speakers 15L and 15R are respectively supplied with an audio signal from a controller (not shown), a video signal and a power supply voltage of the apparatus itself, and the frame 14L. 1
Video display unit 1 via an electric wire (not shown) housed in 4R
Through output to 1.

FIG. 4 is a detailed view showing the structure of a winding mechanism (grip force adjusting means) 17 for winding the winding band 16. The winding mechanism 17 is provided in the image display unit 1.
1 and a winding shaft 18 to which an end of a winding band 16 that penetrates a notch for a band (not shown) provided inside the right frame 14R is connected, and a winding shaft 1
8 and a gear 19 fixed to the gear 8, and a gear 20 meshing with the gear 19.
A motor 22 for driving the gears 20 and 21 fixedly attached to the rotary shafts, and a stopper 24 for biasing a spring 23 to prevent the gear 21 from rotating in a counterclockwise direction. In the vicinity of the winding mechanism 17, a gear 21 and a stopper 2
A release switch 13 is provided to release the engagement of No. 4, and the end portion of the release switch 13 projects on the surface of the image display unit 11 as shown in FIG.

In the above structure, the winding mechanism 17 and the release switch 13 are provided on the right side surface (on the release switch 13 side) of the image display section 11, but they may be provided on the left side surface or both the left and right side surfaces. May be, speaker 1
It may be provided on the 5L, 15R side. Further, this winding mechanism may be combined with the first embodiment.

Next, a method of mounting the head-mounted image display device of the second embodiment will be described. First, the observer sets the loop diameter of the retractable band 16 to be larger than the outer diameter of the head in advance before mounting the release switch 13.
The motor 22 is brought into a free state by pressing to release the engagement between the gear 21 and the stopper 24, and the winding band 16 is pulled out by hand to expand the outer diameter. Next, in this state, the windable band 16 is put on the head from above,
After the image display unit 11 is made to correspond to the left and right eyes, one of the left and right take-up switches 12L and 12R is continuously pressed until the take-up band 16 completely tightens the head. 12L or 12
Release your hand from R. As a result, the stopper 24 moves the spring 23
The spring force of the gear meshes with the gear 21, and the band winding state is maintained and the desired mounting state is achieved. When the head-mounted image display device is detached from the head, the release switch 13 is pushed so that the retractable band 16 can be pulled out by hand. Increase the diameter and remove from the head.

In the second embodiment, the image display unit 11 is held with both hands.
Since it is possible to tighten the retractable band 16 while holding, the mounting is extremely easy.

5 (a) and 5 (b) are partial cross-sectional views showing the structure of the essential parts of the third embodiment of the head-mounted image display device of the present invention, in which the image display part support mechanism is shown. Only the parts relating to the above are described (for the image display unit, the image display system, etc., refer to the above embodiments). Figure 5
In (a), 31 is a frame having a rectangular cross-sectional shape that extends over the observer's forehead, temporal region, and occipital region, and the occipital end of the frame 31 is opened to reduce the feeling of pressure during wearing. Has become.

Inner member 3 of frame 31 having a rectangular cross section
The pads 32a, 32 are formed on the inner peripheral surface of 1b as follows.
b, 32c, 32d are accommodated. That is, the pad 3
2a is supported near the both ends by the metal fitting 33,
Is attached to the inner peripheral surface of the outer member 31 a of the frame 31 by the spring 34.
The locking member 35 connected by means of the above is rotatably supported by a shaft 36 penetrating the left end in the drawing. Locking member 3
A shaft 37, which is fixed to the frame 31 at a portion not shown, penetrates through the central portion of the frame 5, and the locking member 35 is rotatably supported with respect to the frame 31 about the shaft 37. An engaging projection 38 is formed on the right end of the locking member in the figure.

A partition wall 40 defining a space for accommodating the spring 39 is coupled to a portion of the frame 31 corresponding to the side portion of the outer member 31a, and the other end of the spring 39 having one end connected to the space is It is connected to the end of the sandwiching member 41 that is movable along the frame 31. An engaging protrusion 42 having a shape capable of engaging with the engaging protrusion 38 is provided at an end of the holding member 41.
Is formed, and the end of the sandwiching member 41 facing the above is
The holding member 44 is connected to the holding member 44 via the shaft 43.
Is rotatably supported.

The pad 32 is provided at the open end of the holding member 44.
The pad 3 is attached to the holding member 46, to which the d is adhered and one end of which is rotatably connected to the shaft 45 provided in the central portion of the holding member 44.
2c is adhered. A shaft 47 fixed to the frame 31 at a portion (not shown) penetrates through the other end of the sandwiching member 46, and the shaft 47 is connected to an inner member 31b of the frame 31 having a pad 32b bonded to an inner peripheral surface thereof. ing.

Next, a method of mounting the head-mounted image display device of the third embodiment will be described. As shown in FIG. 5A, this head-mounted image display device has an engagement projection 3
When 8 and 42 are engaged with each other, the holding members 41, 44, and 46 are aligned in a substantially straight line, and the contact portion with the head is substantially U-shaped. The head can be made to enter the device from the front of the face. Therefore, first, the observer inserts his / her head from the face side into the opening formed between the ends of the pad 32d while holding the head-mounted image display device by hand. By this insertion of the head, the pad 32d is gradually expanded, and the head is moved to the pad 32d.
Enter along d, 32c, and 32b.

When the head further enters, the face presses the pad 32a, and the metal fitting 33 fixed to the pad 32a engages the locking member 35 with the shaft 37 via the shaft 36.
Rotate around. By this rotation, the engagement state of the engagement protrusions 38 and 42 is released, and the holding member 41 is moved along the frame 31 toward the back of the head by the spring force of the spring 39. By this movement, the link mechanism composed of the holding members 41, 44, 46 and the like operates to bend the holding members 44, 46 toward the observer side as shown in FIG.
A desired mounting and fixing state in which d contacts is established.

In the above, the pad 32a, the metal fitting 33,
Shaft 36, locking member 35, spring 39, holding member 41, shaft 4
3, clamping member 44, shaft 45, clamping member 46, pad 32
c and 32d constitute a gripping force adjusting means, and further, the pad 32a, the metal fitting 33, the shaft 36, the locking member 35 and the spring 3 are provided.
Reference numeral 9 constitutes mounting detection operating means (switch) that detects a predetermined mounting state and operates the gripping force adjusting means. With this configuration, the head-mounted image display device can be easily mounted in a short time, and the troublesomeness of the mounting work can be eliminated.

When the head-mounted image display device is detached from the head, the holding member 44 is held by hand and expanded so as to be separated from the observer, and the engagement shown in FIG. By realizing the engagement state of the protrusions 38 and 42,
The head-mounted image display device can be easily removed from the head.

Although the occipital region of the third embodiment is opened when it is mounted, as shown in FIG. 6, the ends of the holding members 44 (44L, 44R) are extended to enter each other. The entire back of the head may be covered without leakage. Further, the gripping force adjusting means is not limited to the above-mentioned configuration, and may have another configuration.

[0029]

As described above, according to the configuration of claim 1 of the present invention, the image display portion supporting member supporting the left eye image display portion and the right eye image display portion is provided on the observer's head. When mounting and fixing the left and right eye image display portions on the observer's face, the holding means can move at least one of the left and right eye image display portions along the image display portion support member. Since the image display section is moved to the side of the head, the image display section support member is mounted and fixed on the head, and then the image display section is moved to a desired position. Place it (in front of the eyeball). At the time of this mounting work, the center of gravity of the entire apparatus is substantially centered on the head, so that the front, rear, left, and right of the entire apparatus can be balanced, and since it is easy to hold by hand, the mounting is easy.

According to the second aspect of the present invention,
When the image display unit supporting member combined with the image display unit is mounted and fixed to the observer's head and the image displaying unit is arranged on the face portion of the observer, the image display unit supporting member is used by the observer. A gripping force adjusting means for adjusting the gripping force for gripping the head of the user is provided, and, for example, as shown in claim 3, the mounting detection actuating means detects that the predetermined mounting state is reached when the image display supporting member is mounted. Since the gripping force adjusting means is operated, the work of covering the head with the loosened and loosened gripping force of the image display unit before mounting and fixing, and increasing the gripping force at the time of mounting and fixing. It is possible to easily perform the work of securely fixing the head-mounted image display device with both hands while holding the face-side part of the head-mounted image display device with both hands.

[Brief description of drawings]

FIG. 1 is a perspective view showing the configuration of a first embodiment of a head-mounted image display device of the present invention.

2A and 2B are system diagrams each illustrating a video display system configured by using the head-mounted video display device of the first embodiment.

FIG. 3 is a perspective view showing the configuration of a second embodiment of the head-mounted image display device of the present invention.

FIG. 4 is a detailed view showing the structure of a winding mechanism for winding the winding type band of the second embodiment.

5 (a) and 5 (b) are partial cross-sectional views showing a configuration of a main part of a third embodiment of the head-mounted image display device of the present invention.

FIG. 6 is a diagram showing a configuration when the head-mounted image display device of the third embodiment is modified so as to cover the back of the head.

[Explanation of symbols]

 1L Image display part for left eye 1R Image display part for right eye 2L, 2R Guide rail (holding means) 4 Band (image display part support member) 5L, 5R Stopper 6L, 6R Speaker 7 Band stopper 8L, 8R Curl cord

Claims (3)

[Claims] 1. A left-eye image display unit that guides a left-eye image to an observer's left eye, a right-eye image display unit that guides a right-eye image to an observer's right eye, and the left-eye image An image display unit supporting member for holding a display unit and a right eye image display unit, wherein the left eye image display unit and the right eye image display unit are observed by attaching and fixing the image display unit to the observer's head. Image display unit support member that can be arranged on the face of a person, and a holding unit that holds at least one of the left eye image display unit and the right eye image display unit so as to be movable along the image display unit support member. A head-mounted image display device, comprising: 2. An image display unit for guiding an image to an eyeball of an observer, the image display unit being coupled, and the image display unit being attached and fixed to the head of the observer so that the image display unit faces the observer's face. And a gripping force adjusting means for adjusting a gripping force for gripping the observer's head by the image display supporting member. Part-mounted video display device. 3. A mounting detection operating means for detecting that a predetermined mounting state has been reached when mounting the image display supporting member and activating the gripping force adjusting means. The head-mounted image display device described.