JPH08168059A - Head mount display device - Google Patents

Abstract

PURPOSE: To provide a head mount display device which is high in versatility and common usability and good in mount stability. CONSTITUTION: A device main body 1 has a virtual image formation optical system 3 at a front part corresponding to one or both of the right and left eyes of a user 2. The virtual image formation optical system 3 is extended almost in the eye width direction of the user 2 and frictionally fitted onto a device main body 1 through a shaft A4 which is sectioned almost in a cylindrical shape. Further, the device main body 1 is engaged with a holding part through a hinge part A5. The holding part is equipped with an arm 15 to be put on the upper head part.

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 magnifying a virtual image of an image formed by an image display device, and more particularly to a structure for holding the device body on the head.

[0002]

2. Description of the Related Art At present, a head-mounted display device has been proposed in order to meet the demand for enhancing the portability of video and data displays. As a typical example, USP
No. 5,162,828, and Virtua.
A portable head-mounted display device has been commercialized under the name of "Vision Vision SPORT".

[0003]

In this head-mounted display device, the holding means is in the form of glasses, only the temple portion is made of an elastic body, and it does not expand or contract. Further, the holding form is simply placed on both ears and nose while contacting the user's forehead.

Therefore, the entire weight of the virtual image forming optical system projecting forward is directly applied to the nose, and the wearing stability is poor, and the user feels discomfort such as a sore nose.

Since the position of the center of gravity is biased toward the front as described above, it is inevitably inevitable to take a backward tilted posture, which not only restrains the posture of the user but also causes the display device to drop off when the head is tilted forward. In addition, the tension of the neck muscles can be sustained by the backward leaning posture, which may cause the symptoms of shoulder stiffness. Therefore, in the holding mode in which the ears are held by both ears and nose, not only is the wearing stability uncomfortable, but also it cannot endure long-term use.

Structurally, since only the temple portion is made of an elastic material, its strength is low and it cannot withstand repeated use.
In addition, since the temple portion does not expand and contract, it cannot cope with various head shapes. In this case, the head shape that can be used is limited, and the versatility and commonality are poor.

Further, since it has a holding form similar to that of eyeglasses, it is difficult to use it together with eyeglasses, and it is not suitable for a type in which the external world and the virtual image are visually recognized in a superimposed manner.

The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is, first of all, to improve wearing stability while ensuring a feeling of openness. The second is to achieve stable wearability for people with any head shape.

[0009]

In order to solve the above-mentioned problems, the head-mounted display device of the present invention has, according to the structure of claim 1, an image display element and an image formed by the image display element as a virtual image. A head-mounted display device in which a virtual image forming optical system including magnifying optical means for enlarging is housed in a device body and the device body is mounted on a head to visually recognize an image with either one of the left and right eyes of a user or both eyes. In the above, a holding means for holding the apparatus main body on the head of the user is provided, and the holding means has a substantially U-shape along the outer circumference of the head of the user and has elasticity over almost the whole, It is characterized in that the substantially U-shaped top is supported by the user's forehead, and both ends of the substantially U-shape are supported by the head behind the ears of the user.

Therefore, it can be worn by a person having any head shape, and has high wearing stability, device strength, versatility, and commonality. Further, since the contact of the holding part with the head is only on the forehead and the head behind both ears and the upper part of the head is open, there is a feeling of openness and no feeling of pressure due to tightening around the head. Further, since the back of the head is free, the headrest can be attached to the headrest even when sitting on a chair of a moving body such as an airplane, and a more comfortable posture can be taken. Further, since the holding part is supported by the forehead and the head behind both ears, it can be worn even with the glasses worn.

Further, according to the structure of claim 2, the holding means extends to the vicinity of the temporal region along the user's forehead,
Since it bends and extends downward from the vicinity of the side of the head and is supported by the head behind the ears of the user, the frictional force of the forehead support increases and works below the device body. It is strong and has high holding power. Also, since it can be worn around the back of the ear, it is highly stable.

In addition, according to the third aspect of the present invention, the holding means includes a structure that can expand and contract in the longitudinal direction along the head of the user. It can be worn by people of all sizes, has excellent wearing stability, versatility, and commonality, and has a high holding power because it can be worn around the head.

According to a fourth aspect of the present invention, the holding means has an arm having a substantially U-shaped rotatable fulcrum and held by the user's upper head. Therefore, the mounting stability is excellent, the versatility and the versatility are high, and it is safe because it can be prevented from falling off when an impact is applied from above. At this time, since the fulcrum of the arm is rotatable, the arm can be rotated according to the head shape.

Further, according to the structure of claim 5, the arm has a structure capable of expanding and contracting in the longitudinal direction, and at least the contact portion with the head has a cylindrical cross section. It can be worn by people with head sizes like this, and is highly versatile and common. In addition, by making the contact portion to the head have a cylindrical cross section, even when the arm is tilted, it can be uniformly supported on the head and the contact area to the head can be reduced,
You can get a comfortable fit.

According to a sixth aspect of the present invention, the holding means has a forehead pad which is in contact with the forehead of the user inside the top of the substantially U-shape, and the forehead pad is held at least near the top. Since it is fixed to the means, the holding force can be increased by the friction between the forehead pad and the forehead part, and the wearing stability is excellent, and the forehead pad serves as a cushioning material, and the holding part and the user's Damage due to collision with the forehead can be prevented.

Further, according to the structure of claim 7, since the forehead pad is detachably fixed, the forehead pad can be replaced, which is hygienic, versatile and common. In addition to being excellent, it can be easily replaced even when it is deteriorated or damaged, and it does not impair the holding power and mounting stability.

Further, according to the structure of claim 8, since the forehead pad has an opening portion in the central portion, discomfort due to the close contact between the forehead pad and the forehead is reduced, and the head portion is further moved. The shape can be conformed, and the holding power can be enhanced.

Further, according to the structure of claim 9, the forehead pad extends to the end of the user's forehead, is rotatably supported at both ends thereof, and is held on the upper head of the user. Since it is characterized by having an arm, it can be worn so as to cover the forehead and is excellent in wearing feeling, and the arm is rotatably supported at both ends of the forehead pad, so that when the arm is supported by the head. The forehead pad is pulled toward the user's head side, the frictional force between the forehead pad and the forehead is increased, and the wearing stability is increased, so that reliable wearing can be realized.

According to the tenth and eleventh aspects of the present invention, the holding means has head pads which contact the heads behind the ears of the user at both ends of the substantially U-shape, and the head pads are heads. Since the contact surface to the part includes an elastic body, the head pad acts as a cushioning material when it is supported by the head behind the ears of the user, and the wearing feeling is good, and the head is comfortable. Can prevent damage. Further, since the head pad includes the elastic body on the contact surface with the head, the frictional force can be increased, so that the wearing stability can be further improved.

Further, according to a twelfth aspect, the head pad has a first rotation axis on a center line as viewed from a side surface of the substantially U-shape, and is orthogonal to the first rotation axis. Since it has a second rotating shaft and is rotatable with respect to the holding means, it can be worn by any person with any head shape without impairing the holding force, and is stable and versatile. , High versatility.

In addition, according to the thirteenth aspect, the head pad has a substantially elliptical shape having a major axis in the direction of the center line when viewed from the side surface of the substantially U shape, and has a substantially U shape. It has a third rotation axis that is on the side surface center line and is orthogonal to the first and second rotation axes, and is rotatable about the third rotation axis in the direction along the substantially U-shaped side surface. Therefore, the contact area with the head is large and the wearing feeling is good. Also, since the holding part has a substantially elliptical long axis on the side center line and is rotatable, it can be worn by anyone with any head shape without impairing the holding force, and is stable and versatile. Highly versatile.

Further, according to a fourteenth aspect, since the head pad has a circuit for voice input / output means therein, the center of gravity of the apparatus main body is moved to the spinal cord side of the user. Therefore, the mounting stability can be improved. Further, since the device is housed in a position different from the device body, the convenience of circuit replacement and repair is high.

According to the fifteenth aspect, since the head pad has a power source inside, the head pad also plays the role of a counter balance for moving the center of gravity rearward, thereby ensuring the wearing stability. In addition, the power source can be easily replaced because it is housed in a position different from the device body.

Further, according to the sixteenth aspect, since the head pad has a weight serving as a counter balance, even if the head pad does not have a circuit or a power source, the position of the center of gravity is rearward. It plays the role of counter balance that moves to, and can improve wearing stability.

According to a seventeenth aspect of the present invention, the holding means has a hinge portion in the vicinity of the temple portion of the user, and the hinge portion has a structure in which the holding means can be folded only inside the substantially U-shape. Since it is characterized by being present, it can be most stowed without affecting the holding force and is excellent in portability. Further, by folding and putting together, it is possible to form a lump, maintain the strength during storage, and prevent damage to the holding portion.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail with reference to the drawings. (First Embodiment) FIGS. 1 to 5 are schematic views showing a first embodiment of the present invention. 1 is a front view, FIG. 2 is a side view, and FIG. 3 is an enlarged view of the optical system, and at the same time, shows the arrangement of the internal optical system. 4A is a diagram showing the relationship between the slider and the head pad, and FIG. 4B is an enlarged view of the head pad. Further, FIG. 5A is an explanatory view of the fulcrum position of the arm, and FIG. 5B is an enlarged view of the fulcrum of the arm.

In FIGS. 1, 2 and 3, the apparatus main body 1 has a virtual image forming optical system 3 in front of either the left or right eye of the user 2 or both eyes. Further, the virtual image forming optical system 3 extends in the direction of the eye width of the user 2 and is frictionally fitted to the apparatus main body 1 via an axis A4 having a substantially cylindrical cross section.

The virtual image forming optical system 3 is composed of an image display element 9 including a liquid crystal panel 7 and a backlight 8 for irradiating the liquid crystal panel 7 from behind, a reflecting mirror 10 and a lens 11 which is a magnifying optical means. The image light emitted and formed by the image display element 9 has its optical path changed by the reflection mirror 10, and is imaged in the eye 12 of the user by the lens 11. At this time, the image forming surface of the image display element 9 is arranged on the lens 11 side with respect to the object-side focus of the lens 11.
When the eye 12 is arranged in the vicinity of the image-side focal point of 1, the enlarged virtual image 14 of the screen information can be visually recognized on the extension line of the optical axis 13 of the virtual image forming optical system 3 by the image forming action of the lens 11.

In the figure, the device main body 1 has a hinge portion A.
It is attached to the head of the user 2 by the holding unit via 5.

As shown in FIG. 4, the holding portion is made of SUS304.
A frame 26 made of a spring steel plate, etc., is inserted over almost the whole, and the vicinity of its top is covered with a protective cover 6, while the left and right sides are covered with sliders 18, which are used when viewed from above. It has a substantially U-shape along the head of the person 2. Further, it extends along the forehead of the user 2 to the vicinity of the temporal region, and bends and extends downward from the vicinity of the temporal region, for example, from the upper position of both ears. Further, a forehead pad 16 is provided near the top corresponding to the forehead of the user 2, and a head pad 17 is provided at the end corresponding to the head behind both ears, and is elastic toward the head by the frame 26. Due to the force, the forehead pad 16 and the head pad 17 are pressed against and held by the head.

The forehead pad 16 is shaped so as to cover the forehead of the user 2 in front of the temples, and a part of the forehead pad 16 is engaged with the protective cover 6. Further, the head pad 17 is engaged with the slider 18 and has a contact surface with the head which is an elastic body, and has a substantially elliptical shape having a major axis in the direction of the central axis 19 of the slider 18.

As described above, since the holding portion is elastically deformed substantially evenly by the elastic force of the frame 26 inserted in the substantially whole portion, it is possible to conform to any head shape. The physical strength can be easily absorbed, the device strength,
High versatility and commonality. Further, since the user 2 supports the forehead and the head behind both ears, the wearing stability is high. In addition, there is a feeling of openness because the upper part of the head and the back of the head are vacant, and there is no feeling of pressure due to tightening around the head, and even when sitting on a chair of a moving body such as an airplane, the head rests on the headrest. It is possible to attach parts and take a more comfortable posture.

In general, the shape of the head is substantially spherical and curved from around the ears to the neck. On the other hand, in this embodiment, since the holding portion extends along the forehead to the vicinity of the temporal region and bends downward from the vicinity of the upper part of both ears, it is attached so as to wrap around the back of the ear along the shape of the head. it can.

Therefore, with respect to the moment that tries to shift the apparatus main body 1 downward, which is dominant with respect to the total weight,
The present embodiment in which the head pad 17 is arranged below the head, which is a substantially spherical body, is extremely effective in terms of wearing stability. Also,
Since the holding part is away from both ears, it can be worn even with glasses on.

Further, the head pad 17 plays the role of a cushioning material by making the contact surface to the head an elastic body,
It is comfortable to wear and can prevent head damage. Further, since the frictional force can be increased, the mounting stability can be further enhanced.

Further, since it has a substantially elliptical shape having a long axis in the above-mentioned direction, it has a large contact area with the head and is excellent in wearing feeling, and it is extremely easy to follow the shape of the head and is excellent in wearing stability.

As shown in FIGS. 4 (a) and 4 (b), the slider 18 extends obliquely downward, has a shaft B20 at its tip on the central shaft 19, and is fitted with the bearing of the slider joint 21. . At the other end of the slider joint 21, there is an axis C23 in a direction 22 orthogonal to the central axis 19 of the slider 18, and an axis D25 in a direction 24 orthogonal to the central axis 19 and the axis C23. Mates with bearings.

As a result, the head pad 17 is attached to the slider 18
It rotates about the axis B20 around 28 of the slider joint 21 in conjunction with it, and rotates about the axis C23 of the slider joint 21 around 29 about the axis B20. Furthermore, since it also rotates around the central axis 19 of the slider 18 and an axis 31 around an axis D25 orthogonal to the axis C23, it is possible to conform to any head shape. Further, the head pad 17 has a slider 18 shape.
The series of operations is smoother due to the symmetrical shape with respect to the axis B20.

On the other hand, the slider 18 is fitted to the frame 26, and a spring provided inside the slider 18 and the frame 26
Forming a latch with a plurality of notches formed in a part of the. At this time, when a force in the longitudinal direction is applied to the slider 18 and the frame 26, the notch position where the spring is engaged changes, and the slider 18 can be moved in the longitudinal direction 32. Therefore, from the state where the holding portion is as shown in FIG.
It becomes possible to change in a stepwise manner to the state shown in (a), and it is possible to correspond to any length around the head.

Further, the holding portion is provided with an arm 15 whose contact portion with at least the head portion has a substantially cylindrical cross section. Arm 15
Is a substantially U-shaped elastic body that has a pair of left and right fulcrums 28 on the sliders B27 of the pair of sliders 18 and extends along the upper head of the user 2. Stretchable in the longitudinal direction. The fulcrum 28 of the arm 15 has a structure as shown in FIGS. 5 (a) and 5 (b), and rotates about the X axis 33 about the X axis, rotates about the Y axis 34, and rotates about the Z axis with respect to the slider 18. 35 is possible, and the structure is such that when the holding part is elastically deformed according to the size of the head, the arm 15 is not affected, and it is folded to the holding part side (rotation 33) for compact storage. It is also possible to do so. Further, since the fulcrum 28 is provided on the slider 18, even if the slider 18 is expanded or contracted depending on the size of the head, the relative position between the fulcrum 28 and the ear is substantially constant, and the physical stability difference has little influence on the mounting stability. Further, since the cross-sectional shape of the arm 15 is cylindrical at least at the contact portion with the head, even if the arm 15 is rotated 33 in the front-rear direction at the fulcrum 28 and arranged at any position on the upper head of the user 2, The state of contact with the head is almost constant,
Wearability is always stable.

(Second Embodiment) FIGS. 6, 7, and 8 are schematic views showing a second embodiment of the present invention. FIG. 6 is a top view of the holding portion, FIG. 7 is a side view, and FIG. 8 is an enlarged view of the forehead pad attachment portion. The structure of the holding portion and the internal configuration of the virtual image forming optical system are the same as in the first embodiment. . Further, since the constituent elements are also the same, the same reference numerals are used and the description thereof is omitted.

In the figure, the device main body 1 includes a hinge portion A.
It is attached to the head of the user 2 by the holding unit via 5.
The holding part is supported by the forehead pad 16 on the forehead of the user 2 and by the head pad 17 on the head behind both ears by the same structure as the first embodiment.

The forehead pad 16 is made of an elastic material such as rubber,
It has an opening 38 in the central portion and extends to the edge of the forehead of the user 2. At both ends 39 thereof, there are arms 15 rotatably supported and held on the upper head of the user 2. Arm 1
5 has the same shape and structure as the first embodiment.

Further, the forehead pad 16 is detachably fixed to the top portion of the holding portion or the back side of the hinge portion A5, for example, with the central portion of the forehead pad 16 by a screw 36 or the like.
6 is covered with a cover 37.

As described above, by providing the opening 38 in the central portion of the forehead pad 16, the discomfort caused by the close contact between the forehead pad 16 and the forehead is reduced, and the forehead pad 16 which is substantially divided into two parts is provided. Since each deforms along the forehead shape,
The shape can be more closely aligned with the head, and the holding force can be increased.

Further, since it can be worn so as to cover the forehead of the user 2, the wearing feeling is excellent, and the arms 15 are rotatably supported at both ends of the forehead pad 16, so that the arms 15 can be rotated.
When the forehead is supported on the head, the forehead pad 16 is pulled toward the head side of the user 2, the frictional force between the forehead pad 16 and the forehead is increased, and the wearing stability is increased, and reliable wearing can be realized.

Further, since the forehead pad 16 is fixed near the top of the holding portion having a substantially U-shape, the forehead pad 16 and the apparatus main body 1 are prevented from being displaced from each other, and the user 2 is allowed to do so.
Even if it is set at a desired position, a good virtual image can be stably viewed.

Further, the forehead pad 16 serves as a cushioning material, so that the damage due to the collision between the holding portion 6 and the user's 2 forehead can be prevented.

Further, a screw 36 for fixing the forehead pad 16
By removing the etc., the forehead pad 16 can be replaced, which is hygienic, has excellent versatility and commonality, and can be easily replaced even when deteriorated or damaged, impairing holding power and mounting stability. Absent.

A similar effect can be obtained even if the means for fixing the forehead pad 16 is a hook or the like. Further, the opening is not limited to the shape shown in this embodiment.

(Third Mode) FIG. 9 is a schematic view showing a third mode of the present invention. FIG. 9 is an enlarged view of the head pad, and the structure of the holding portion and the internal configuration of the virtual image forming optical system are the same as those in the first and second embodiments. Further, since the constituent elements are also the same, the same reference numerals are used and the description thereof is omitted.

In the figure, the head pad 17 has a substantially oval shell shape, and accommodates a circuit 40 for voice input / output means inside one side and a power source 41 inside the other side. The contact surface with the head is an elastic body, and the positional relationship of the head pad 17 is the same as in the first embodiment.

By accommodating a voice input / output circuit 40 and a power source 41 inside the head pad 17, when the head-mounted display device is used as a PC monitor, voice input can be performed regardless of keyboard input. It is suitable as a monitor of a portable terminal or the like for which work is performed.

By the way, humans balance their bodies with the spinal cord as a reference. The head is also supported on the body by the spinal cord. As described above, in the head mounted display device as shown in the present application, the device body 1 side which is the optical engine is
Dominance over the total weight can affect this balance if the center of gravity of the device is extremely forward.
Therefore, it is desirable that the center of gravity of the device be as close to the spinal cord as possible.

According to this embodiment, since some of the constituent elements are housed in the rear side of the device, the center of gravity of the device can be moved to the spinal cord side of the user 2, and the wearing stability can be improved. Further, since the device is housed in a position different from the device main body 1, it is easy to replace the voice input / output circuit 40 and the power supply 41, which is highly convenient for repairs and the like.

Even when the voice input / output means is not used, a weight serving as a counter balance is stored in the head pad 17 to play a role of a counter balance for moving the center of gravity position to the rear side. The stability can be increased.

(Fourth Embodiment) FIGS. 10, 11, and 12 are schematic views showing a fourth embodiment of the present invention. FIG. 10 is a top view of the holding portion, FIGS. 11A and 11B are operation explanatory views of the hinge portion, and FIG. 12 is an enlarged view of the hinge portion. The structure of the holding unit and the internal configuration of the virtual image forming optical system are similar to those of the first, second, and third modes. Further, since the constituent elements are also the same, the same reference numerals are used and the description thereof is omitted.

In the figure, the holding portion has a hinge portion B42 near both temples of the user 2, and the holding portion is the holding portion A.
43 and two holding parts B44. That is, the frame 26 described above, which is inserted over the entire holding portion, is also divided into three in the vicinity of the hinge portion B42.

The hinge portion B42, as shown in FIG.
Hinge metal fittings A45 fixed to both ends of the holding portion A43,
A hinge fitting B46 fixed to the end of the holding portion B44,
The hinge fitting A45 and the hinge fitting B46 are configured by a pin 27 penetrating inside the substantially U-shaped shape.

The end of the holding portion A43 and the holding portion B44
As shown in FIG. 11 (a), the end portion of the hinge portion B 42
Forms an angle that makes contact when the is opened. Further, the slider 18 is arranged on the side of the holding portion B46,
Like the above-mentioned form, it is formed so that it can expand and contract.

As a result, the hinge portion B42 is shown in FIG.
Although it can rotate inward of the substantially U-shape as shown in FIG. 11, it does not rotate outward from the state of FIG. 11 (a).

The frame 26 to be interpolated is shown in FIG.
When the holding portions are to be opened beyond the state shown in FIG. 7A, the holding portions are in contact with each other as described above, so that the frame 26
The elastic force can be evenly generated over substantially the same as when the two are integrated.

Now, the above-mentioned hinge portion B42 is used by the user 2
They are placed near the left and right temples, but generally the distance between the temples of a human is sufficiently longer than the distance from the temples to the head behind both ears. The distance in the front-rear direction from the temple to the forehead is sufficiently larger than the thickness of the head pad 17 shown in the present application. Therefore, by folding the holding portion inward of the substantially U shape by the hinge portion B42, the holding portion can be folded most compactly in the state shown in FIG. Further, at this time, the elastic force and the expansion and contraction action required for the holding portion as described above can be formed without any influence.

Therefore, it is possible to enhance the storability without affecting the holding force, and it is excellent in portability. further,
By folding and putting together, it can be made into a lump, the strength at the time of storage can be maintained, and damage to the holding portion can be prevented.

[0065]

As described above, in the head-mounted display device of the present invention, the entire holding portion is a substantially U-shaped elastic body along the outer circumference of the head of the user, and the device is the user. Since it is supported by the forehead and the head behind both ears, it can be worn by people with any head shape, and has high wearing stability, device strength, versatility, and commonality. Further, since the contact of the holding part with the head is only on the forehead and the head behind both ears and the upper part of the head is open, there is a feeling of openness and no feeling of pressure due to tightening around the head. Further, since the back of the head is free, the headrest can be attached to the headrest even when sitting on a chair of a moving body such as an airplane, and a more comfortable posture can be taken. Further, since the holding part is supported by the forehead and the head behind both ears, it can be worn even with the glasses worn.

Further, the holding portion extends along the user's forehead to the vicinity of the temporal region, bends downward from the vicinity of the temporal region and extends, and is supported by the head behind the user's both ears. , The friction force of the forehead support increases, and it is strong against the force acting below the device body,
High holding power. Also, since it can be worn around the back of the ear, it is highly stable.

In addition, since the holding portion can be expanded and contracted in the longitudinal direction along the head of the user, it can be attached to a person of any head size, and is stable in mounting, versatile, and shared. In addition to excellent performance, it can be worn around the head and has high holding power.

Also, by adding an arm to be held on the user's upper head, it has excellent wearing stability, high versatility and versatility, and can be prevented from falling off when an impact from above is applied. It's safe. At this time, since the fulcrum of the arm is rotatable, the arm can be rotated according to the head shape.

Furthermore, since the arm is extendable and retractable in the longitudinal direction, it can be worn by people of any head size,
High versatility and commonality. Also, by making the contact part to the head have a cylindrical cross section, even if the arm is tilted, it can be supported uniformly on the head and the contact area to the head can be reduced, resulting in a comfortable wearing feeling. Can be obtained.

Further, since the forehead pad is fixed to the holding portion, it is possible to prevent the device from deviating from the forehead pad. further,
The holding force can be increased by the friction between the forehead pad and the forehead part, and the wearing stability is excellent, and the forehead pad serves as a cushioning material, and damage due to the collision between the holding part and the user's forehead can be prevented.

In addition, since the forehead pad is detachably fixed, the forehead pad can be replaced, which is hygienic and versatile.
In addition to being excellent in commonality, it can be easily replaced even if it deteriorates or is damaged, and retainability and mounting stability are not impaired.

By providing the forehead pad with an opening, the discomfort caused by the close contact between the forehead pad and the forehead can be reduced, the shape can be made closer to the head, and the holding power can be enhanced.

Further, since the forehead pad extends to the end of the user's forehead, the forehead can be worn so as to cover the forehead and the wearing feeling is excellent, and the arms are rotatably supported at both ends of the forehead pad. As a result, when the arm is supported by the head, the forehead pad is pulled toward the user's head side, the frictional force between the forehead pad and the forehead is increased, and the wearing stability is increased, so that reliable wearing can be realized.

Further, when the head pad is supported by the head behind the ears of the user, the head pad serves as a cushioning material, which gives a comfortable fit and prevents damage to the head. Further, since the head pad includes the elastic body on the contact surface with the head, the frictional force can be increased, so that the wearing stability can be further improved.

Further, since the holder has a rotation axis on the center line as viewed from the side surface and orthogonal to the center axis, and is rotatable, it can be used by a person having any head shape without impairing the holding force. It can be installed, and has high installation stability, commonality, and versatility.

In addition, since it has a substantially elliptical shape having a major axis in the direction of the center line when viewed from the side surface of the holding portion, the contact area with the head is large and the wearing feeling is good. In addition, since there is a substantially elliptical long axis on the center line of the side of the holding part and it is freely rotatable, it can be worn by people of any head shape without impairing the holding force, and the wearing stability Highly versatile and versatile.

Further, by accommodating the circuit for voice input / output means inside the head pad, the center of gravity of the apparatus main body can be moved to the spinal cord side of the user, and the wearing stability can be improved. Further, since the device is housed in a position different from the device body, the convenience of circuit replacement and repair is high.

Similarly, by accommodating the power source inside, it also plays the role of a counter balance for moving the center of gravity backward, which can improve the mounting stability.
The power source can be easily replaced because it is stored in a position different from the device body.

Even when the head pad does not have a circuit or a power source, by accommodating the weight inside, it plays a role of counter balance for moving the center of gravity position backward, thereby improving the wearing stability. it can.

Further, since the holding portion is tilted only inward in the vicinity of the temple portion of the user, the storability can be improved most without affecting the holding force, and the portability is excellent. Further, by folding and putting together, it is possible to form a lump, maintain the strength during storage, and prevent damage to the holding portion.

[Brief description of drawings]

FIG. 1 is a schematic front view showing a first embodiment of the present invention.

FIG. 2 is a schematic side view showing the first embodiment of the present invention.

FIG. 3 is an enlarged view of the optical system showing the first embodiment of the present invention.

FIG. 4 is a structural diagram of a slider portion showing a first embodiment of the present invention, (a) is a configuration diagram of a slider and a head pad, and (b) is an enlarged view of the head pad.

FIG. 5 is a structural diagram of an arm fulcrum portion showing an embodiment of the present invention, in which (a) is an explanatory diagram of the fulcrum position of the arm,
(B) is an enlarged view of the fulcrum of the arm.

FIG. 6 is a schematic top view showing a second embodiment of the present invention.

FIG. 7 is a schematic side view showing a second embodiment of the present invention.

FIG. 8 is an enlarged view of a forehead pad portion showing a second embodiment of the present invention.

FIG. 9 is an enlarged view of a head pad portion showing a third embodiment of the present invention.

FIG. 10 is a schematic top view showing a fourth mode of the present invention.

FIG. 11 is an enlarged view of a hinge portion showing a fourth embodiment of the present invention, (a) is a closed state view of a holding portion, and (b) is an open state view of the holding portion.

FIG. 12 is a configuration diagram of a hinge portion showing a fourth mode of the present invention.

[Explanation of symbols]

 1 Device Main Body 2 User 3 Virtual Image Forming Optical System 4 Axis A 5 Hinge A 6 Protective Cover 7 Liquid Crystal Panel 8 Backlight 9 Image Display Element 10 Reflection Mirror 11 Lens 12 Eye 13 Optical Axis 14 Virtual Image 15 Arm 16 Forehead Pad 17 Head Part pad 18 Slider 19 Center axis 20 Axis B 21 Slider joint 22 Orthogonal direction 23 Axis C 24 Orthogonal direction 25 Axis D 26 Frame 27 Pin 28 fulcrum 29 Axis B around 30 Axis C around 31 Axis D around 32 Longitudinal direction 33 X Rotation around the axis 34 Rotation around the Y axis 35 Rotation around the Z axis 36 Screws 37 Cover 38 Opening 39 Both ends 40 Audio input / output circuit 41 Power supply 42 Hinge part B 43 Holding part A 44 Holding part B 45 Hinge fitting A 46 Hinge bracket B

Claims (17)

[Claims] 1. A virtual image forming optical system including an image display element and a magnifying optical means for magnifying a virtual image of an image formed by the image display element is housed in a main body of the apparatus, and the main body of the apparatus is mounted on a head to use the image. In a head-mounted display device that is visually recognized by either one of the left and right eyes of the user or both eyes, a holding means for holding the device body on the head of the user is provided, and the holding means is the head of the user. It has a substantially U-shape along the outer circumference of the part, has elasticity over almost the whole, and the top of the substantially U-shape is supported by the user's forehead, and both ends of the substantially U-shape are A head-mounted display device, which is supported by the head behind both ears of the user. 2. The holding means extends along the user's forehead to the vicinity of the temporal region, bends downward from the vicinity of the temporal region and extends, and is supported on the head behind the two ears of the user. The head-mounted display device according to claim 1, wherein the display device is mounted on the head. 3. The head-mounted display device according to claim 1, wherein the holding means includes a structure capable of expanding and contracting in a longitudinal direction along a user's head. 4. The holding means according to claim 1, wherein the holding means has an arm having a substantially U-shaped rotatably fulcrum and held by the upper head of the user. Head-mounted display device. 5. The head mounted display according to claim 4, wherein the arm has a structure capable of expanding and contracting in a longitudinal direction, and at least a contact portion with the head has a cylindrical cross section. apparatus. 6. The holding means has a forehead pad that abuts the forehead of the user inside the top of the substantially U-shape, and the forehead pad is fixed to the holding means at least near the top. The head-mounted display device according to claim 1, wherein: 7. The head-mounted display device according to claim 6, wherein the forehead pad is detachably fixed. 8. The head-mounted display device according to claim 6, wherein the forehead pad has an opening in a central portion. 9. The forehead pad has arms extending to the ends of the user's forehead, rotatably supported at both ends thereof, and held by the user's upper head. The head-mounted display device according to claim 6. 10. The head-mounted type according to claim 1, wherein the holding means has a head pad that contacts the head behind the ears of the user at both ends of the substantially U-shape. Display device. 11. The head-mounted display device according to claim 10, wherein the head pad includes an elastic body on a contact surface with the head. 12. The head pad has a first rotation axis on a center line when viewed from the side surface of the substantially U-shaped shape, and has a second rotation axis perpendicular to the first rotation axis. 11. The holding means is rotatable with respect to the holding means.
The head-mounted display device according to. 13. The head pad has a substantially elliptical shape having a major axis in a centerline direction when viewed from a side surface of the substantially U-shaped shape, and is on a side surface centerline of the substantially U-shaped shape. It has a third rotation axis orthogonal to the first and second rotation axes and is rotatable about the third rotation axis in a direction along the side surface of the substantially U-shape. And claim 10
The head-mounted display device according to. 14. The head-mounted display device according to claim 10, wherein the head pad has a circuit for voice input / output means therein. 15. The head-mounted display device according to claim 10, wherein the head pad has an internal power source. 16. The head-mounted display device according to claim 10, wherein the head pad has a weight serving as a counter balance. 17. The holding means has a hinge portion near the temple of the user, and the hinge portion has a structure in which the holding means can be folded only inside the substantially U-shape. The head-mounted display device according to claim 1.