JP2004233899A - Head mounted display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent displacement of an image display part by taking weight balance when mounting a head mounted display device. <P>SOLUTION: The head mounted display device comprises a rear arm 10 mounted on the rear head part of a user M and pressing the side head part with both the ends, speaker parts 15 and 16 provided on both the ends of the rear arm 10 and mounted on right and left ears, a front arm 20 continued to one end of the rear arm 10, and an image display part 30 supported on the front arm 20 and arranged forward of eyes E of the user M. A battery which is a weight on the rear arm 10 is provided so that a moment making a support point of the end of the rear arm 10 acting on the rear arm 10 is substantially equal to a moment on the end of the rear arm 10 acting on the image display part 30 and the front arm 20. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a head-mounted display device that can be worn on a user's head to view an image.
[0002]
[Prior art]
A conventional head-mounted display device has an arm mounted on the upper head of a user, and ear pads provided on both ends of the arm and mounted on left and right ears. In some cases, a display arm that supports an image display unit is attached to a head mount unit that is fixed with the head in between, and the display is supported in front of the eyes.
[0003]
On the other hand, there is also a head mounted display device in which a video display unit is attached to a head mount unit having an ear hook such as an eyeglass frame.
[0004]
The following documents are exemplified as materials in which these technologies are disclosed.
[0005]
[Patent Document]
JP 10-123455 A JP 2000-231075 A
[Problems to be solved by the invention]
These head-mounted displays have poor weight balance between the front and rear when the head is mounted, and the image display unit is likely to be displaced.
[0007]
The present invention has been made in view of such circumstances, and an object thereof is to balance the weight when a head-mounted display device is mounted and prevent the image display unit from being displaced.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, the invention according to claim 1 is provided on a rear arm which is mounted on the back of a user and held on the head by pressing a temporal region, and provided on the rear arm and mounted on left and right ears. Mounting means, a front arm connected to the rear arm, and a display means supported by the front arm and arranged in front of the eye, wherein the rear arm acting on the rear arm A position at or near the position where the user presses the temporal region of the rear arm, which acts on the display means and the front arm, with the moment at the position where the temporal region of the user is pressed or near the fulcrum is defined as the fulcrum. A front-rear balance which weights at least one of the rear arm and the front arm so as to be substantially equal to a moment Characterized in that a stage.
[0009]
According to a second aspect of the present invention, in the head-mounted display device according to the first aspect, the weight applied to the mounting means on the side where the display means is arranged is substantially equal to the weight applied to the mounting means on the side where the display means is not arranged. In order to make them equal, left and right balance means are provided at the end of the mounting arm on the side where the display means is not disposed or the end of the rear arm located near the mounting means.
[0010]
According to a third aspect of the present invention, in the head-mounted display device according to the first or second aspect, the front-rear balance unit or the left-right balance unit serving as the weight is a battery, a video circuit, a motor, or a counterweight. I do.
[0011]
According to a fourth aspect of the present invention, there is provided a rear arm disposed on the back of the user, left and right ear mounting means provided on the rear arm, a front arm provided on the rear arm, and a display supported by the front arm. And a front moment generated on the front side of the user's head with the fulcrum near the ear mounting means, and the user's head with a fulcrum near the ear mounting means. Are characterized in that rearward moments generated on the rear side are substantially equal.
[0012]
According to a fifth aspect of the present invention, in the head-mounted display device according to the fourth aspect, at least one of the rear arm and the front arm is provided with front-rear balance means for making the front moment and the rear moment substantially the same. Features.
[0013]
According to a sixth aspect of the present invention, in the head-mounted display device according to the fifth aspect, the front-rear balance means includes at least one of a battery, a video circuit, a motor, and a count weight.
[0014]
According to a seventh aspect of the present invention, there is provided a rear arm arranged on the back of the user, left and right ear mounting means provided on the rear arm, a front arm provided on the rear arm, and a display supported by the front arm. And a load applied to the head of the user from the left and right ear mounting means is substantially equal in the left and right.
[0015]
The invention according to claim 8 is the head mounted display device according to claim 7, wherein the front arm is provided near one of the left and right ear mounting means of the rear arm, and Left and right balance means are provided on the other ear-fitting means of the ear-fitting means or on the rear arm near the ear-fitting means.
[0016]
According to a ninth aspect of the present invention, in the head-mounted display device according to the eighth aspect, the left / right balance means is at least one of a battery, a video circuit, a motor, and a count weight.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0018]
FIG. 1 is a perspective view of the head mounted display device according to the first embodiment of the present invention.
[0019]
This head-mounted display device includes a rear arm 10, speaker units (mounting means) 15, 16, a front arm 20, and a video display unit (display means) 30.
[0020]
The rear arm 10 has an arc shape and is mounted on the back of the head. Both ends of the rear arm 10 press the temporal region. At the center of the rear arm 10, a heavy component (front-rear balance means) 17 such as a motor, a video circuit, a battery, and a counterweight is disposed. In FIG. 1, a battery is disposed as the heavy component 17.
[0021]
The speakers (mounting means) 15 and 16 are provided at both ends of the rear arm 10 and are mounted on the left and right ears of the user M. The rear arm 10 presses the temporal region via the speaker units 15 and 16.
[0022]
The front arm 20 has a bow shape, and is supported by one end of the rear arm 10. In FIG. 1, the front arm 20 is disposed on the left ear side of the user M.
[0023]
The image display unit 30 is supported by the front arm 20. A liquid crystal panel, a fluorescent tube, a condenser lens, a reflecting mirror, an eyepiece, and the like (not shown) necessary for projecting an image to the eyes of the user M are arranged in the image display unit 30.
[0024]
The user M wearing the head-mounted display device observes an image using, for example, a portable VTR (video tape recorder) or a DVD. The video signal from the VTR is sent to the liquid crystal panel of the video display unit 30, and the video projected on the liquid crystal panel is illuminated by a fluorescent tube and expanded to the eyeball of the user M via a condenser lens, a reflector, and an eyepiece. Projected.
[0025]
When the user M wears the head mounted display device, as shown in FIG. 1, the image display unit 30 is located in front of one eye E (the left eye in FIG. 1) of the user M, and the heavy component 17 is It is located on the back of the head of the user M.
[0026]
At this time, the moment acting on the rear arm 10 at the position where the side of the user M of the rear arm 10 is pressed or near the fulcrum is the side of the user M of the rear arm 10 acting on the image display unit 30 and the front arm 20. It is almost the same as the moment with the fulcrum at or near the position where the head is pressed.
[0027]
According to the first embodiment, when the head-mounted display device is mounted, a weight balance can be obtained between the front and the rear, and the displacement of the image display unit 30 can be prevented.
[0028]
Since the fulcrum of the moment acting on the rear arm 10 and the moment acting on the front arm 20 is a position for pressing the temporal region of the user M, the loudspeaker unit 15 as in this embodiment is located at this position. If 16 exists, the position where the speaker units 15 and 16 are provided becomes a fulcrum of the above-mentioned moment.
[0029]
The fulcrum need not necessarily be limited to the ears of the user's head.For example, the points supporting the weight of the head-mounted display device are the left and right heads behind the ears. Of the front side and the rear side moment generated on the front side may be substantially the same.
[0030]
In this embodiment, components such as a motor, a video circuit, a battery, and a counterweight are positioned as front-rear balance means. However, the front side generated on the front side of the user's head with the fulcrum near the ear mounting means. The arrangement of the components constituting the head mounted display device may be set so that the moment and the rear moment generated on the rear side of the head of the user supporting the vicinity of the ear mounting means are substantially equal, and particularly, A similar effect can be expected without providing a special member as the front-rear balance means.
[0031]
FIG. 2 is a perspective view of a head-mounted display device according to a second embodiment of the present invention, in which parts common to those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
[0032]
This embodiment is different from the first embodiment in that a housing section 140 for housing a front arm 120 is provided inside a rear arm 110.
[0033]
The front arm 120 is slidably inserted into the housing 140.
[0034]
The operation feeling when the front arm 120 is moved in and out can be adjusted by adjusting the frictional force acting between the surface of the front arm 120 and the inner surface of the housing section 140, or by a protrusion (not shown) provided on the front arm 120. The height is increased by adopting a click mechanism constituted by a concave portion (not shown) provided in the accommodating portion 140.
[0035]
The video display unit 30 located at the end of the front arm 120 can be pulled out to the extension of the eye (rotation point) E.
[0036]
In the second embodiment, a motor for moving the front arm 120 into and out of the rear arm 110 as the heavy object 17 is provided.
[0037]
According to the second embodiment, the same effects as those of the first embodiment can be obtained.
[0038]
FIG. 3 is a perspective view of a head-mounted display device according to a third embodiment of the present invention, in which parts common to those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.
[0039]
This embodiment is different from the head-mounted display device according to the first embodiment in that a housing 240 separate from the rear arm 210 is connected to an end of the rear arm 210 and a heavy part 217 is arranged at the end of the housing 240. Is different from
[0040]
One end of the front arm 220 is slidably inserted into the housing 240.
[0041]
The operational feeling when the front arm 220 is taken in and out can be adjusted by adjusting the frictional force acting between the surface of the front arm 220 and the inner surface of the housing section 240, or by a protrusion (not shown) provided on the front arm 220. The height is increased by adopting a click mechanism composed of a concave portion (not shown) provided in the accommodating portion 240.
[0042]
The housing 240 extends along the rear arm 210 at a predetermined interval from the rear arm 210. A heavy component 217 (back-and-forth balance means) such as a motor, a video circuit, and a battery is disposed at a distal end of the housing section 240. No heavy parts corresponding to the heavy parts 17 of the first embodiment are arranged on the rear arm 210.
[0043]
According to the third embodiment, the same effects as those of the first embodiment can be obtained.
[0044]
FIG. 4 is a perspective view of a head-mounted display device according to a fourth embodiment of the present invention, in which parts common to those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
[0045]
In this embodiment, the rear arm 310 and the housing 340 separate from each other are connected to the end of the rear arm 310, and on the side opposite to the side where the housing 340 of the front arm 320 is arranged (the right ear side of the user M). It differs from the first embodiment in that heavy parts (left and right balance means) 317 such as a motor, a video circuit, and a battery are arranged.
[0046]
According to the fourth embodiment, the same effect as that of the first embodiment is achieved by balancing the weight with the housing portion 340 separate from the front arm 320, and is opposite to the side where the housing portion 340 of the front arm 320 is arranged. The right and left weight balance can be obtained by the weight part 317 arranged on the side.
[0047]
In this embodiment, the point of application of the load to the head is near where the speaker units 15 and 16 as the left and right ear mounting means are provided. If substantially the same load is applied at the left and right load application points, the left and right weight balance can be maintained, and a stable wearing feeling can be obtained. Therefore, even when the load application point is set at a position different from that of this embodiment, the same effect can be obtained by making the loads at the load application points substantially the same.
[0048]
For example, when the load application point on the head is the left and right side head behind the ear, the weight may be balanced at the load application point.
[0049]
FIG. 5 is a perspective view of a head-mounted display device according to a fifth embodiment of the present invention, in which parts common to those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
[0050]
In this embodiment, a housing portion 440 separate from the rear arm 410 is connected to the end of the rear arm 410, and a battery is connected to the speaker portion 16 on the side opposite to the side where the housing portion 440 is arranged (the right ear side of the user M). The second embodiment is different from the first embodiment in that heavy parts (right and left balance means) 417 such as are provided.
[0051]
According to the fifth embodiment, the same effects as those of the first embodiment can be obtained, and the right and left weight balance can be achieved by the weight part 417 arranged on the side opposite to the side where the housing portion 440 of the front arm 420 is arranged. be able to.
[0052]
In this way, when obtaining the balance between the front and rear and the left and right of the head, the front moment generated on the front side of the user's head, with the speaker portion serving as a load application point on the head as a fulcrum, The rear moment generated on the rear side of the user's head is set so as to be substantially equal, and the left and right weight balances are set so that the same load is applied to the left and right speaker portions, which are the right and left load application points. Can be. Also, since the heavy parts are provided near the load application point, the moment generated by dare placing the heavy parts can be reduced, and the stability at the time of mounting can be increased.
[0053]
FIG. 6 is a perspective view of a head-mounted display device according to a sixth embodiment of the present invention, in which parts common to those of the first embodiment are denoted by the same reference numerals and description thereof is omitted.
[0054]
In this embodiment, a housing part 540 separate from the rear arm 510 is connected to the vicinity of the end of the rear arm 510, and a heavy part 517 such as a video drive circuit constituting a part of the video display unit 30 is provided at the end of the front arm 520. Is different from the first embodiment in that
[0055]
According to this embodiment, the moment acting on the image display unit 30 and the front arm 520 with the fulcrum at or near the position where the user of the rear arm 510 presses the temporal region is reduced, so that the weight balance can be more easily achieved. Become.
[0056]
FIG. 7 is a perspective view of a head-mounted display device according to a seventh embodiment of the present invention, in which parts common to those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.
[0057]
In this embodiment, a housing 640 separate from the rear arm 610 is connected to the end of the rear arm 610, and heavy parts (front-rear balance means) 617 such as a motor, a video circuit, a video drive circuit, and a battery are placed near the speaker unit 15. The second embodiment differs from the first embodiment in that the first embodiment is disposed.
[0058]
According to this embodiment, effects similar to those of the sixth embodiment can be obtained.
[0059]
【The invention's effect】
As described above, according to the head-mounted display device of the present invention, it is possible to balance the weight when the head-mounted display device is mounted and prevent the image display unit from being displaced.
[Brief description of the drawings]
FIG. 1 is a perspective view of a head-mounted display device according to a first embodiment of the present invention.
FIG. 2 is a perspective view of a head-mounted display device according to a second embodiment of the present invention.
FIG. 3 is a perspective view of a head-mounted display device according to a third embodiment of the present invention.
FIG. 4 is a perspective view of a head-mounted display device according to a fourth embodiment of the present invention.
FIG. 5 is a perspective view of a head-mounted display device according to a fifth embodiment of the present invention.
FIG. 6 is a perspective view of a head-mounted display device according to a sixth embodiment of the present invention.
FIG. 7 is a perspective view of a head-mounted display device according to a seventh embodiment of the present invention.
[Explanation of symbols]
10, 110, 210, 310, 410, 510, 610 Rear arms 15, 16 Speaker unit (mounting means)
17,217,517,617 Heavy parts (front and rear balance means)
20, 120, 220, 320, 420, 520, 620 Front arm 30 Image display unit (display means)
317,417 heavy parts (left and right balance means)
M user

Claims (9)

A rear arm attached to the back of the user and held on the head by pressing the temporal region,
Mounting means provided on the rear arm and mounted on the left and right ears,
A front arm connected to the rear arm,
In a head-mounted display device, which is supported by the front arm and includes display means arranged in front of the eye,
A moment about the fulcrum at or near the position of the rear arm pressing the user's temporal region acting on the rear arm presses the user's temporal region of the rear arm acting on the display means and the front arm. A head-balance display device provided with a front-rear balance means weighing at least one of the rear arm and the front arm so as to be substantially equal to a moment having a fulcrum at or near a position where the fulcrum is located. The mounting means on the side where the display means is not disposed or the mounting means such that the weight applied to the mounting means on the side where the display means is disposed is substantially equal to the weight applied to the mounting means on the side where the display means is not disposed 2. A head-mounted display device according to claim 1, wherein left and right balance means serving as a weight are provided at an end of said rear arm located in the vicinity of. 3. The head-mounted display device according to claim 1, wherein the front-rear balance unit or the left-right balance unit is a battery, a video circuit, a motor, or a counterweight. A rear arm placed on the back of the user's head,
Left and right ear mounting means provided on the rear arm,
A front arm provided on the rear arm,
A head mounted display device comprising: a display means supported by the front arm;
A front moment generated on the front side of the user's head with the vicinity of the ear mounting means as a fulcrum is substantially equal to a rear moment generated on the rear side of the user's head with the fulcrum near the ear mounting means. A head mounted display device characterized by the above-mentioned. 5. The head-mounted display device according to claim 4, wherein at least one of the rear arm and the front arm is provided with front-rear balance means for making the front moment and the rear moment substantially the same. 6. The head-mounted display device according to claim 5, wherein the front-rear balance unit includes at least one of a battery, a video circuit, a motor, and a count weight. A rear arm placed on the back of the user's head,
Left and right ear mounting means provided on the rear arm,
A front arm provided on the rear arm,
A head mounted display device comprising: a display means supported by the front arm;
A head-mounted display device, wherein loads applied to the user's head from the left and right ear mounting means are substantially equal in the left and right. The front arm is provided near one of the left and right ear mounting means of the rear arm,
8. The head mounted display device according to claim 7, wherein a left / right balance unit is provided on the other of the left and right ear mounting units or on the rear arm in the vicinity thereof. 9. The head mounted display device according to claim 8, wherein the left / right balance unit includes at least one of a battery, a video circuit, a motor, and a count weight.

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