JP3603401B2 - Head mounted display - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a head-mounted image display device that enlarges an image formed by an image display element into a virtual image, and more particularly to a holding structure of the device main body on a head.
[0002]
[Prior art]
At present, a head-mounted display device has been proposed in order to respond to a demand for improving portability of video and data displays. As a typical example, USP No. No. 5,162,828, and a portable head-mounted display device has been commercialized as Virtual Vision SPORT.
[0003]
[Problems to be solved by the invention]
In this head-mounted display device, the holding means is of an eyeglass type, only the temple portion is an elastic body, and does not expand or contract. In addition, the holding mode is only to put on both ears and nose while making contact with the user's forehead.
[0004]
For this reason, the entire weight of the virtual image forming optical system protruding forward is directly applied to the nose, so that the wearing stability is poor and the user feels discomfort such as a painful nose.
[0005]
Since the position of the center of gravity is biased forward in this way, it is inevitable to take a backward tilted posture, not only restraining the user's posture, but also danger of the display device falling off when the head is tilted forward. In addition, since the posture of the neck muscles can be maintained by the backward leaning posture, it may induce symptoms such as stiff shoulders. Therefore, in the holding form in which the ear is held only by the both ears and the nose, not only the feeling of stable mounting is poor, but also it cannot endure long-time use.
[0006]
In terms of structure, since only the temple portion is an elastic body, the strength is low, it cannot withstand repeated use, and the temple portion does not expand and contract, so that it cannot cope with various head shapes. In this case, usable head shapes are limited, and versatility and commonality are poor.
[0007]
Furthermore, since it is a holding form similar to eyeglasses, it is difficult to use it together with eyeglasses, and it is not suitable for a type in which the outside world and a virtual image are superimposed and viewed.
[0008]
The present invention has been made in order to solve the above-mentioned problems, and has as its object to firstly improve the mounting stability while ensuring a feeling of opening. Secondly, it is intended to realize stable wearability for persons with any head shapes.
[0009]
[Means for solving the problem]
In order to solve the above-mentioned problems, a head-mounted display device of the present invention includes:
A head-mounted display device for visually recognizing an image by mounting a device main body containing a virtual image forming optical system comprising an image display element and a magnifying optical unit for enlarging a virtual image of the image formed by the image display element on the head The holding means for holding the apparatus main body on the head, the holding means has elasticity as a whole, and further has a substantially U-shaped portion held along the side surface of the head, A forehead pad for supporting the apparatus body on the forehead of the user, and an arm portion held on the upper head of the user. A head pad for supporting the apparatus main body is disposed on the head behind both ears of the user at both ends.
[0010]
For this reason, it can be worn on a person of any head shape, and the wearing stability, device strength, versatility, and versatility are high. Further, since the contact of the holding portion with the head is only at the head behind the forehead and both ears and the upper part of the head is empty, there is a feeling of opening and there is no feeling of pressure due to tightening around the head. Further, since the back of the head is vacant, the head can be put on the headrest even when sitting on a chair of a moving body such as an airplane, so that a more comfortable posture can be taken. In addition, since the holding portion is supported by the forehead and the head behind both ears, the holding portion can be worn while wearing glasses.
[0011]
Further, in the head-mounted display device of the present invention, the holding means extends to the vicinity of the temporal region along the forehead of the user, and bends and extends downward from the vicinity of the temporal region to extend the user. Since it is characterized by being supported by the head behind both ears, the frictional force of the forehead support is increased, the force acting below the apparatus main body is strong, and the holding force is high. In addition, since it can be worn around the back of the ear, the wearing stability is high.
[0012]
Further, the holding means is characterized by including a structure that can be stretched in the longitudinal direction along the user's head, so that a person of any head size can be worn, and wearing stability is improved. It has excellent versatility and commonality, and has high holding power because it can be worn around the head.
[0013]
Further, the holding means has a rotatable fulcrum on the substantially U-shaped portion and has an arm held on the upper head of the user, so that the holding means is excellent in mounting stability, It is highly versatile and versatile, and it is safe because it can be prevented from falling off when an impact from above is applied. At this time, since the fulcrum of the arm is rotatable, the arm can be rotated according to the shape of the head.
[0014]
Further, in the head-mounted display device of the present application, the arm is extendable and contractible in a longitudinal direction, and at least a contact portion to the head has a cylindrical cross section. It can be worn by people of any size, and is highly versatile and versatile. In addition, by making the contact part to the head a cylindrical cross-section, even when the arm is tilted, it is uniformly supported by the head and the contact area to the head can be reduced, making it comfortable to wear Can be obtained.
[0015]
Further, in the head-mounted display device according to the present application, the holding means has a forehead pad that hits a user's head inside a vertex of the substantially U-shaped portion, and the forehead pad is held at least near the top. It is characterized by being fixed to the means, so that the holding force can be increased by friction between the forehead pad and the forehead part, and it is excellent in mounting stability, and the forehead pad becomes a cushioning material, and the holding part and the user Damage due to collision with the forehead can be prevented.
[0016]
Furthermore, the forehead pad is characterized by being detachably fixed, so that the forehead pad can be replaced, it is hygienic, versatile, excellent in versatility, and when it is deteriorated or damaged. Can be easily exchanged without impairing holding power and mounting stability.
[0017]
Further, since the forehead pad has an opening in the center, discomfort due to close contact between the forehead pad and the forehead is reduced, and the forehead pad can be shaped more along the head, and holding power can be improved. Can be enhanced.
[0019]
In addition, in the head-mounted display device of the present application, the holding means has a head pad at both ends of the substantially U-shaped portion, which hits the head behind both ears of the user, and the head pad is: The head pad serves as a cushioning material when supported by the head behind both ears of the user because it is characterized by including an elastic body on the contact surface to the head, so that the feeling of wearing is good, The damage of the part can be prevented. In addition, since the head pad includes the elastic body on the contact surface with the head, the frictional force can be increased, so that the mounting stability can be further improved.
[0020]
Further, the head pad has a first rotation axis on a center line viewed from a side surface of the substantially U-shaped portion, and a second rotation axis orthogonal to the first rotation axis, It is characterized by being rotatable with respect to the holding means, so that it can be worn on a person with any head shape without impairing the holding force, and has high mounting stability, versatility and versatility.
[0021]
In addition, the head pad has a substantially elliptical shape having a major axis in a center line direction viewed from a side surface of the substantially U-shaped portion, and the second pad is located on a side center line of the substantially U-shaped portion. First, it has a third rotation axis orthogonal to the second rotation axis, and is rotatable around the third rotation axis in a direction along a side surface of the substantially U-shaped portion. Therefore, the contact area with the head is large and the wearing feeling is good. In addition, since the long axis of the substantially elliptical shape is rotatable on the side center line of the side surface of the holding portion, it can be worn on a person of any head shape without impairing the holding force, mounting stability, versatility, High commonality.
[0022]
Furthermore, since the head pad has a circuit for voice input / output means inside, the center of gravity of the device main body is moved to the spinal cord side of the user, so that wearing stability can be improved. In addition, the power supply is easily exchanged because it is stored in a position different from the apparatus main body.
[0023]
In addition, since the head pad has a power supply therein, the power supply also serves as a counterbalance for moving the position of the center of gravity backward, so that the mounting stability can be improved and the apparatus main body can be improved. It is easy to replace the power supply because it is stored in another position.
[0024]
Further, since the head pad has a weight that serves as a counterbalance, the head pad functions as a counterbalance that moves the center of gravity backward even when the head pad has no circuit or power supply. , Mounting stability can be improved.
[0025]
Further, the holding means has a hinge portion near the temple portion of the user, the hinge portion is characterized in that the holding means can be tilted only inside the substantially U-shaped portion, The storage ability can be enhanced without affecting the holding power, and the portability is excellent. Furthermore, 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.
[0026]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
(First form)
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 an optical system, and also shows an arrangement of an internal optical system. FIG. 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. 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.
[0027]
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. 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 the axis A4 having a substantially cylindrical cross section.
[0028]
The virtual image forming optical system 3 includes an image display element 9 including a liquid crystal panel 7 and a backlight 8 for irradiating the liquid crystal panel from behind, a reflection mirror 10, and a lens 11 as an enlargement optical unit. The image light formed and emitted by the image display element 9 has its optical path changed by the reflection mirror 10 and is imaged in the user's eye 12 by the lens 11. At this time, if the image forming surface of the image display element 9 is disposed closer to the lens 11 than the object-side focal point of the lens 11 and the eye 12 is disposed near the image-side focal point of the lens 11, a virtual image is formed by the image forming action of the lens 11. An enlarged virtual image 14 of the screen information can be visually recognized on an extension of the optical axis 13 of the optical system 3.
[0029]
In the figure, the apparatus main body 1 is mounted on the head of the user 2 by a holding section via a hinge section A5.
[0030]
As shown in FIG. 4, a frame 26 made of a spring steel plate such as SUS304 is inserted over substantially the entirety of the holding portion, and the vicinity of the top is covered with the protective cover 6, and the left and right sides are covered with the slider 18. When viewed from above, it has a substantially U-shape along the head of the user 2. Also, 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. In addition, 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 an end corresponding to the head behind both ears. In order for the force to work, the forehead pad 16 and the head pad 17 are pressed against the head and held.
[0031]
The forehead pad 16 is shaped so as to cover the forehead in front of the temple portion of the user 2, and a part thereof is engaged with the protective cover 6. The head pad 17 is engaged with the slider 18 and has a substantially elliptical shape having an elastic body in contact with the head and a major axis in the direction of the central axis 19 of the slider 18.
[0032]
As described above, since the entire holding portion is uniformly elastically deformed by the elastic force of the frame 26 inserted substantially in the entire portion, the holding portion can follow any head shape. It can be easily absorbed and has high device strength, versatility and common use. In addition, since it is supported at the three points of the forehead of the user 2 and the head behind both ears, the mounting stability is high. Furthermore, since the upper part of the head and the back part of the head are vacant, there is a feeling of openness, there is no feeling of pressure due to tightening around the head, and even when sitting on a moving chair such as an airplane, the head rests on the headrest. The part can be attached and a more comfortable posture can be taken.
[0033]
Generally, the head shape is substantially spherical, and is curved from the vicinity of both 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 portion of both ears, it is worn so as to wrap around the back of the ear along the shape of the head. it can.
[0034]
Therefore, the present embodiment in which the head pad 17 is disposed below the substantially spherical head in response to the moment which tends to shift the apparatus main body 1 downward, which is dominant with respect to the total weight, has the mounting stability. Is extremely effective. In addition, since the holding portion keeps both ears away, it can be worn even with glasses.
[0035]
Further, the head pad 17 serves as a cushioning material by making the contact surface with the head an elastic body, so that the head pad 17 has a good wearing feeling and can prevent damage to the head. Further, since the frictional force can be increased, the mounting stability can be further improved.
[0036]
Furthermore, since it has a substantially elliptical shape having a major axis in the above-described direction, the contact area with the head is large and the feeling of wearing is excellent, and the shape is very easy to follow the shape of the head and the wearing stability is excellent.
[0037]
As shown in FIGS. 4A and 4B, the slider 18 extends obliquely downward, has a shaft B20 at the tip on its central axis 19, and fits with the bearing of the slider joint 21. The other end of the slider joint 21 has an axis C23 in a direction 22 orthogonal to the center axis 19 of the slider 18, and further has an axis D25 in the direction 24 orthogonal to the center axis 19 and the axis C23. Mates with bearing.
[0038]
As a result, the head pad 17 rotates around the axis B20 of the slider 18 in conjunction with the slider joint 21, and rotates about the axis C23 of the slider joint 21 29 orthogonally thereto. Furthermore, since it also rotates around the central axis 19 of the slider 18 and around the axis D25 orthogonal to the axis C23, it is possible to follow any head shape. Further, since the shape of the head pad 17 is symmetrical with respect to the axis B20 of the slider 18, a series of operations is smoother.
[0039]
On the other hand, the slider 18 is fitted to the frame 26 and forms a latch between a spring provided inside the slider 18 and a plurality of notches provided on a part of the frame 26. At this time, when a longitudinal force is applied to the slider 18 and the frame 26, the notch position where the spring engages changes, and the slider 18 can be moved in the longitudinal direction 32. Therefore, the holding portion can be changed stepwise from the state shown in FIG. 2 to the state shown in FIG. 4A, and can correspond to any length around the head.
[0040]
Further, the holding portion includes an arm 15 having at least a contact portion with the head having a substantially cylindrical cross section. The arm 15 has a pair of left and right fulcrums 28 on the slider B27 of the pair of sliders 18, is a substantially U-shaped elastic body along the upper head of the user 2, and is similar to the telescopic mechanism of the slider 18. It is stretchable in the longitudinal direction due to its structure. The fulcrum 28 of the arm 15 has a structure as shown in FIGS. 5A and 5B, and rotates 33 around the X axis, 34 around the Y axis, and 34 around the Z axis with respect to the slider 18. 35 is possible, the structure is such that the effect of the elastic deformation of the holding part according to the size of the head does not affect the arm 15, and the storage part is compactly stored by folding it toward the holding part (rotation 33). It is also possible. In addition, 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 there is little influence on the mounting stability due to the difference in physique. Further, since the cross-sectional shape of the arm 15 is made cylindrical at least at the contact part with the head, even if the arm 15 is rotated 33 in the front-rear direction at the fulcrum 28 and placed at any position of the upper head of the user 2, The state of contact with the head is substantially constant, and the wearability is always stable.
[0041]
(Second form)
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 unit, FIG. 7 is a side view, and FIG. 8 is an enlarged view of a forehead pad mounting part. The structure of the holding unit and the internal configuration of the virtual image forming optical system are the same as those in the first embodiment. . In addition, the same components are used for the same components, and the description thereof will be omitted.
[0042]
In the figure, the apparatus main body 1 is mounted on the head of the user 2 by a holding section via a hinge section A5. The holding part is supported by the forehead part 16 of the user 2 with the forehead pad 16 by the same structure as the first embodiment, and is supported by the head pad 17 on the head behind both ears.
[0043]
The forehead pad 16 is made of an elastic material such as rubber, has an opening 38 in the center, and extends to the end of the forehead of the user 2. The two ends 39 have arms 15 rotatably supported and held on the upper head of the user 2. The arm 15 has the same shape and structure as the first embodiment.
[0044]
Furthermore, the center portion of the forehead pad 16 is detachably fixed to the top of the holding portion or the back side of the hinge portion A5 by, for example, a screw 36, and the screw 36 is covered with a cover 37.
[0045]
By providing the opening 38 in the center portion of the forehead pad 16 in this way, discomfort due to close contact between the forehead pad 16 and the forehead is reduced, and the forehead pad 16 which is substantially separated into two is formed in a forehead shape. , The shape can be more shaped along the head, and the holding force can be increased.
[0046]
Further, since the arm 15 can be worn so as to cover the forehead of the user 2, the feeling of wearing is excellent, and the arm 15 is rotatably supported at both ends of the forehead pad 16, so that the arm 15 is supported on the head. Occasionally, the forehead pad 16 is pulled toward the head of the user 2, the frictional force between the forehead pad 16 and the forehead is increased, and the mounting stability is increased, so that reliable mounting can be realized.
[0047]
Further, since the forehead pad 16 is fixed in the vicinity of the substantially U-shaped top of the holding portion, the forehead pad 16 is prevented from being displaced from the apparatus main body 1, and the user 2 can move the forehead pad 16 to a desired position. By setting, a good virtual image can be stably recognized.
[0048]
In addition, the forehead pad 16 serves as a cushioning material, and can be prevented from being damaged by collision between the holding part 6 and the forehead of the user 2.
[0049]
Further, by removing the screws 36 for fixing the forehead pad 16, the forehead pad 16 can be replaced, which is hygienic, excellent in versatility and common use, and easily replaced even when deteriorated or damaged. It does not impair holding power and mounting stability.
[0050]
The same effect can be obtained even if the means for fixing the forehead pad 16 is a hook or the like.
Also, the opening is not limited to the shape shown in this embodiment.
[0051]
(Third form)
FIG. 9 is a schematic view illustrating a third embodiment of the present invention. FIG. 9 is an enlarged view of the head pad. The structure of the holding unit and the internal configuration of the virtual image forming optical system are the same as those of the first and second embodiments. In addition, the same components are used for the same components, and the description thereof will be omitted.
[0052]
In the figure, the head pad 17 has a substantially elliptical shell shape, and accommodates a circuit 40 for voice input / output means on one side and a power supply 41 on the opposite side. The contact surface to the head is an elastic body, and the positional relationship of the head pad 17 is the same as in the first embodiment.
[0053]
By storing the voice input / output circuit 40 and the power supply 41 inside the head pad 17, when the head-mounted display device is used as a PC monitor, work can be performed by voice input instead of keyboard input. It is suitable as a monitor of a portable terminal or the like that performs the above.
[0054]
By the way, humans balance their bodies based on the spinal cord. 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 an optical engine, is dominant with respect to the total weight. May be affected. It is therefore desirable that the center of gravity of the device be as close as possible to the spinal cord.
[0055]
According to this embodiment, since a part of the components is stored on 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 mounting stability can be improved. Furthermore, since it is stored in a position different from that of the apparatus main body 1, replacement of the voice input / output circuit 40 and replacement of the power supply 41 are easy, and convenience such as repair is high.
[0056]
Further, even when the voice input / output unit is not used, the weight serving as a counterbalance is stored in the head pad 17 to play the role of a counterbalance that shifts the position of the center of gravity backward, and the mounting stability is improved. Can be enhanced.
[0057]
(Fourth form)
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 explanatory views of the operation 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 the same as those of the first, second, and third embodiments. In addition, the same components are used for the same components, and the description thereof will be omitted.
[0058]
In the figure, the holding portion has a hinge portion 42 near both temples of the user 2, and the holding portion is divided into a holding portion A43 and two holding portions B44. That is, the above-mentioned frame 26 inserted over the entire holding portion is also divided into three near the hinge portion B42.
[0059]
As shown in FIG. 12, the hinge part B42 includes a hinge fitting A45 fixed to both ends of the holding part A43, a hinge fitting B46 fixed to the end of the holding part B44, a hinge fitting A45 and a hinge fitting B46. And a pin 27 penetrating inside the substantially U-shape.
[0060]
Also, as shown in FIG. 11A, the end of the holding portion A43 and the end of the holding portion B44 form an angle such that they come into contact when the hinge portion B42 is opened.
Further, the slider 18 is arranged on the holding portion B46 side, and is formed to be expandable and contractible similarly to the above-described embodiment.
[0061]
As a result, the hinge portion B42 can rotate inside the substantially U-shaped shape as shown in FIG. 11B, but does not rotate outside the state shown in FIG. 11A.
[0062]
In addition, when the holding portion of the interpolated frame 26 tries to open beyond the state shown in FIG. 11A, the holding portions are in contact with each other as described above. The elastic force can be generated evenly over substantially the entirety.
[0063]
Now, the above-mentioned hinge portion B42 is arranged near the left and right temples of the user 2, but generally the distance between the human temples is sufficiently longer than the distance from the temple 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, when the holding portion is folded inside the substantially U-shape by the hinge portion B42, it is possible to fold the holding portion most compactly as shown in FIG. Further, at this time, the elastic force and the expansion / contraction effect required for the holding section as described above can be formed without any influence.
[0064]
Therefore, it is possible to enhance the storage capacity without affecting the holding force, and the portability is excellent. Furthermore, 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]
【The invention's effect】
As described above, the head-mounted display device of the present invention includes:
The entire holding part is a substantially U-shaped elastic body along the outer periphery of the user's head, and the head is supported by the user's forehead and the back of both ears. It can be worn by humans, and has high mounting stability, device strength, versatility and versatility. Further, since the contact of the holding portion with the head is only at the head behind the forehead and both ears and the upper part of the head is empty, there is a feeling of opening and there is no feeling of pressure due to tightening around the head. Further, since the back of the head is vacant, the head can be put on the headrest even when sitting on a chair of a moving body such as an airplane, so that a more comfortable posture can be taken. In addition, since the holding portion is supported by the forehead and the head behind both ears, the holding portion can be worn while wearing glasses.
[0066]
Furthermore, the holding portion extends along the forehead of the user to near the temporal region, bends downward from near the temporal region and extends, and is supported by the head behind the user's both ears. The frictional force of the portion increases, and the force acting below the apparatus main body is strong, and the holding force is high. In addition, since it can be worn around the back of the ear, the wearing stability is high.
[0067]
In addition, the holding part is stretchable in the longitudinal direction along the user's head, so it can be worn on people of any head size, and is excellent in mounting stability, versatility, and versatility In addition, since it can be worn around the head, it has high holding power.
[0068]
In addition, by adding an arm that is held on the upper head of the user, it has excellent mounting stability, high versatility and common use, and it can be prevented from falling off when an impact from above is applied, and it is safe. . At this time, since the fulcrum of the arm is rotatable, the arm can be rotated according to the shape of the head.
[0069]
Further, since the arm can be extended and contracted in the longitudinal direction, the arm can be worn on a person having any head size, and the versatility and common use are high. In addition, by making the contact part to the head a cylindrical cross-section, even when the arm is tilted, it is uniformly supported by the head and the contact area to the head can be reduced, making it comfortable to wear Can be obtained.
[0070]
Further, since the forehead pad is fixed to the holding portion, it is possible to prevent the device and the forehead pad from shifting. Further, the holding force can be increased by friction between the forehead pad and the forehead portion, and the mounting stability is excellent. In addition, the forehead pad serves as a cushioning material, and damage due to collision between the holding portion and the user's forehead can be prevented.
[0071]
In addition, since the forehead pad is detachably fixed, the forehead pad can be replaced, it is sanitary, it is versatile and excellent in versatility, and it can be easily replaced even when it is deteriorated or damaged, and it is retained Power and mounting stability are not impaired.
[0072]
Further, by providing the opening in the forehead pad, discomfort due to the close contact between the forehead pad and the forehead can be reduced, the shape can be more shaped along the head, and the holding power can be increased.
[0074]
Further, when the head is supported by the head behind both ears of the user, the head pad serves as a cushioning material, so that the feeling of wearing is good and the head can be prevented from being damaged. In addition, since the head pad includes the elastic body on the contact surface with the head, the frictional force can be increased, so that the mounting stability can be further improved.
[0075]
In addition, since the holding part has a rotation axis on the center line viewed from the side and orthogonal to it, and is freely rotatable, it can be worn on people with any head shape without impairing the holding force High mounting stability, versatility and versatility.
[0076]
In addition, since it has a substantially elliptical shape having a major axis in the direction of the center line as viewed from the side surface of the holding portion, the contact area with the head is large and the feeling of wearing is good. In addition, the long axis of the substantially elliptical shape, which is substantially elliptical, is rotatable on the center line of the side surface of the holding part, so that it can be worn on any person with any head shape without impairing the holding force, and the mounting stability High commonality and versatility.
[0077]
Further, by storing the circuit for the 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. In addition, since it is stored at a position different from the apparatus main body, the convenience of circuit replacement and repair is high.
[0078]
Similarly, by storing the power supply inside, it also plays the role of a counterbalance that also moves the center of gravity rearward, which can enhance the mounting stability and, because it is stored in a different position from the device main body, Replacement of power supply is easy.
[0079]
Further, even when the head pad does not have a circuit and a power supply, by storing the weight therein, it plays a role of a counter balance that moves the position of the center of gravity backward, and can enhance the mounting stability.
[0080]
Further, since the holding portion can be tilted only inward in the vicinity of the user's temple portion, the storage capacity can be increased without affecting the holding force, and the portability is excellent. Furthermore, 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.
[Brief description of the drawings]
FIG. 1 is a schematic front view showing a first embodiment of the present invention.
FIG. 2 is a schematic side view showing a first embodiment of the present invention.
FIG. 3 is an enlarged view of an optical system according to the first embodiment of the present invention.
4A and 4B are structural diagrams of a slider portion showing a first embodiment of the present invention, wherein FIG. 4A is a configuration diagram of a slider and a head pad, and FIG. 4B is an enlarged view of a head pad.
5A and 5B are structural diagrams of an arm fulcrum portion according to an embodiment of the present invention, wherein FIG. 5A is an explanatory diagram of a fulcrum position of the arm, and FIG. 5B 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 according to a second embodiment of the present invention.
FIG. 9 is an enlarged view of a head pad portion according to a third embodiment of the present invention.
FIG. 10 is a schematic top view showing a fourth embodiment of the present invention.
FIGS. 11A and 11B are enlarged views of a hinge portion showing a fourth embodiment of the present invention, wherein FIG. 11A is a closed state diagram of the holding unit, and FIG. 11B is an open state diagram of the holding unit.
FIG. 12 is a configuration diagram of a hinge portion representing a fourth embodiment of the present invention.
[Explanation of symbols]
1 Device body
2 users
3 Virtual image forming optical system
4 axis A
5 Hinge A
6 Protective cover
7 LCD panel
8 Backlight
9 Image display device
10 Reflection mirror
11 lenses
12 eyes
13 Optical axis
14 Virtual Image
15 arm
16 forehead pad
17 Head 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 frames
27 pin
28 fulcrum
29 Around axis B
30 around axis C
31 around axis D
32 longitudinal direction
33 Rotation around X axis
34 Rotation around Y axis
35 Rotation around Z axis
36 screws
37 cover
38 opening
39 both ends
40 Audio input / output circuit
41 power supply
42 Hinge B
43 Holder A
44 Holder B
45 Hinge bracket A
46 Hinge bracket B

Claims (10)

A head-mounted display device for visually recognizing an image by mounting a device main body containing a virtual image forming optical system comprising an image display element and a magnifying optical unit for enlarging a virtual image of the image formed by the image display element on the head And
The holding means for holding the apparatus main body on the head includes a substantially U-shaped portion which is entirely elastic and is held along the side surface of the head; And an arm that is held
A forehead pad for supporting the device body on the forehead of the user at the top of the substantially U-shaped portion, and a head behind the user's both ears at both ends of the substantially U-shaped portion. A head pad for supporting the device main body at a portion of the head-mounted display device. The holding means extends to the vicinity of the temporal region along the forehead of the user, bends and extends downward from the vicinity of the temporal region, and is supported by the head behind both ears of the user. The head-mounted display device according to claim 1, wherein The head-mounted display device according to claim 1, wherein the forehead pad is detachably fixed. The head-mounted display device according to claim 1, wherein the forehead pad has an opening in a central portion. The head pad, a first rotation axis on a center line viewed from the side of the substantially U-shaped portion,
A second rotation axis orthogonal to the first rotation axis,
The head-mounted display device according to claim 1, wherein the display device is rotatable with respect to the holding unit. The head pad has a substantially elliptical shape having a major axis in a center line direction viewed from a side surface of the substantially U-shaped portion, and the first and second portions are positioned on a side center line of the substantially U-shaped portion. It has a third rotation axis orthogonal to the second rotation axis, and is rotatable around the third rotation axis in a direction along the side surface of the substantially U-shaped portion. Item 2. A head-mounted display device according to Item 1. The head-mounted display device according to claim 1, wherein the head pad has a circuit for voice input / output means inside. The head-mounted display device according to claim 1, wherein the head pad has a power supply therein. The head-mounted display device according to claim 1, wherein the head pad has a weight serving as a counterbalance. The holding means has a hinge near the temple of the user,
The head-mounted display device according to claim 1, wherein the hinge part allows the holding unit to be tilted only inside the substantially U-shaped part.

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