JPH06315124A - Spectacles type video display device - Google Patents

Abstract

PURPOSE:To provide the spectacles type video display device by which a pair of eyepieces can be fitted simply to the left and the right eyeballs, and also, an optimal installed state of the device main body can be maintained for many hours. CONSTITUTION:To the back side of the device main body 10, an annular head cap 70 for installing the device main body 10 to the face is attached through a two-step hinge 3. In the center of the inside peripheral surface 70a of this head cap 70, a top band 80 for supporting the weight of the device main body 10 and the head cap 70 is provided so as to be freely movable in the vertical direction. Also, on the inside peripheral surface 70a of the head cap 70, a side band 90 for tightening the back of the head is provided. This side band 90 is freely movable in the direction for tightening or loosening the back of the head by each operating knob 91 provided projectingly on the outside peripheral surface 70b side of the head cap 70.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is capable of enlarging and viewing an image such as a video image or a television image displayed on a pair of LCDs (liquid crystal panels) through a pair of eyepieces in a face-worn state. The present invention relates to a spectacle-type image display device that is made possible.

[0002]

2. Description of the Related Art For example, the present applicant has proposed an eyeglass-type image display device capable of viewing video images and the like using an LCD.
It is disclosed in Japanese Patent Application No. 3-251667. This similar structure will be briefly described with reference to FIGS.
Reference numeral 00 denotes an eyeglass-type image display device, which is a substantially casing-type device main body 101 serving as a front frame thereof, and a pair of handles 102, 1 foldably attached to both sides of the device main body 101.
With 02, it looks like a pair of glasses. On the inverted V-shaped nose pad 101a in the lower center of the apparatus body 101,
An inverted V-shaped reflecting mirror 103 is attached. This reflector 1
A fluorescent tube 104 is arranged above 03, and a pair of color liquid crystal panels (image display means) 105, 1 are provided on both sides of the reflecting mirror 103 so as to straddle the nose pad 101a.
05 is erected. In each of the color liquid crystal panels 105, a convex condensing lens 106 is arranged substantially integrally with the color liquid crystal panel 105 via a deflecting plate 107.

A pair of convex eyepieces 108, 108 are arranged on the left and right eyeballs A, A in the apparatus body 101, respectively, and a pair of condenser lenses 106 in the apparatus body 101. , 106 and a pair of eyepieces 10
8, a pair of rectangular plate-shaped reflecting mirrors 109,
109 are arranged respectively. Incidentally, 102a in FIG.
Is an earphone attached to each handle 102.

Then, as shown in FIG. 15, the pair of color liquid crystal panels 10 is mounted on the face by mounting the above-mentioned spectacles type image display device 100 on, for example, a small portable VTR not shown.
The images projected on the lenses 5 and 105 are illuminated by the fluorescent tube 104, and the pair of condenser lenses 106 and 106 to the pair of reflecting mirrors 109 and 109 and the pair of eyepieces 108 and 10 are used.
The image is enlarged and projected on the retinas a of the left and right eyeballs A and A via the image plane 8. That is, the pair of color liquid crystal panels 105, 105
The image formed by is reflected by the pair of reflecting mirrors 109, 109, and the virtual image magnified by the pair of eyepieces 108, 108 comes to the position of the clear vision distance.

[0005]

In the above-mentioned conventional eyeglass-type image display device 100, when the device main body 101 is mounted on the face, the pair of handles 102, 102 are mounted on the left and right outer ears respectively. However, it is difficult to maintain the mounted state of the apparatus main body 101 in a state where the pair of eyepieces 108, 108 are aligned with the positions of the left and right eyeballs A, A. My nose was sore that I couldn't wear it for a long time.

Therefore, the present invention provides a spectacle-type image display device in which a pair of eyepieces can be easily fitted to the positions of the left and right eyeballs to maintain the optimum wearing state of the device body for a long time. .

[0007]

An eyeglass-type image display device in which each image of a pair of image display means provided in the device body is magnified by a pair of eyepieces and projected on the retinas of the left and right eyeballs. In the above, a ring-shaped head cap for mounting the device body on the face is provided on the back side of the device body, and a top band supporting the weight of the device body and the head cap is vertically moved in the center of the opening of the head cap. It is provided freely. Further, a side band for tightening the head is provided on the inner peripheral surface side of the head cap.

[0008]

Since the device body is suspended from the top band of the head cap, the top band moves up and down by mounting the device body in front of the face and moving the device body up and down. As a result, the pair of eyepieces of the apparatus body can be easily adjusted to the positions of the left and right eyeballs.
In addition, the optimum wearing state of the apparatus body is maintained for a long time by the side band.

[0009]

Embodiments of the present invention will be described in detail below with reference to the drawings.

In FIGS. 1 and 12, reference numeral 1 denotes a spectacle-type image display device, which is a substantially casing-type (goggle-type) device main body 10 which is located in front of the face when worn on the head and serves as a spectacle part.
An optical visual device 2 which is housed in the device body 10 and includes a backlight 20 and a pair of optical vision units 30 and 30, and a two-stage hinge 3 which is located rearward from the center of the upper part of the back (rear) surface of the device body 10. And an annular head cap 70 for mounting the apparatus body 10 on the face.

As shown in FIG. 1, the main body 10 of the apparatus is a front cabinet 11 made of opaque synthetic resin and having an inverted U-shaped vertical section.
And a rear cabinet 12 which is made of an opaque synthetic resin and which has a U-shaped vertical cross section and which is joined to the rear peripheral edge of the front cabinet 11 to form a hollow casing. In the central recess 13 of the upper piece 11a of the front cabinet 11 and the central recess 14 of the upper piece 12a of the rear cabinet 12, the front hinge portion 3a of the two-stage hinge 3 covered with the front and rear covers 4 and 5 is provided. positioned. This front hinge part 3a is
It has a front-sided V-shape and is rotatably supported at the center of a metal base plate 6. Incidentally, the hinge portion 3b on the rear side of the two-stage hinge 3
Is rotatably supported on the front side of a head cap 70, which will be described later, and includes hinge portions 3a, 3b in front of and behind the two-stage hinge 3.
The position of the apparatus main body 10 can be adjusted in the front-rear direction with respect to the head cap 70 via the spring plate portion 3c supporting the.

The lower piece 12b of the rear cabinet 12
A nose relief portion 15 recessed in a substantially triangular shape is formed in the center of the, and a wide eyepiece window portion 16 is formed in the rear portion 12c. As shown in FIG. 7, a transparent window plate 17 made of transparent synthetic resin is fitted to the eyepiece window portion 16 of the rear cabinet 12. The transparent window plate 17 has a predetermined curvature or angle and is curved so that both sides 17a, 17a thereof are curved outward. Thereby, the external light C from the rear piece 12c side of the rear cabinet 12 is transmitted to the transparent window plate 1
Even when reflected by 7, the reflected light C ₁ does not enter the left and right eyeballs A, A.

As shown in FIGS. 1 and 6, the optical visual device 2 is mounted between the both side pieces 6a, 6a of the base plate 6. The backlight 20 of the optical visual device 2 includes a reflector 21 that is made of a synthetic resin and has a substantially semi-cylindrical shape that also serves as a frame by mirror-finishing the curved surface of the inner surface.
One long fluorescent lamp 22 arranged in the center of the inner surface of 1,
A power supply unit 24 is connected to one side of the reflector 21 via a connector 23. As shown in FIG. 6, the both side portions 21a, 21a of the reflector 21 are attached to the pair of vertical bent portions 6b, 6b on the front side of the both side piece portions 6a, 6a of the base plate 16 by screws or the like not shown.

As shown in FIGS. 1 to 3, the pair of optical vision units 30 and 30 of the optical vision device 2 includes the base plate 6 described above.
It is slidably supported along a pair of metal rod-shaped shafts 31, 31 which are hung around the upper and lower sides of the both side pieces 6a, 6a. That is, the pair of optical vision units 30 and 30 include a pair of left and right lens barrels 40 and 40 slidably supported by the pair of shafts 31 and 31, and
The pair of lens barrels 40, 40 are composed of a pair of casing-type holders 50, 50 joined hermetically to the rear ends of the lens barrels 40, 40. The pair of optical vision units 30 and 30 are arranged along the pair of shafts 31 and 31 by a pair of interpupillary adjustment knobs 7 and 7 slidably provided on the lower piece portion 12b of the rear cabinet 12 of the apparatus body 10. Horizontal approach,
It can be separated.

As shown in FIGS. 7 and 8, each lens barrel 40 has three holding portions 41a, which are inserted into the respective shafts 31 at the top thereof.
A cylindrical outer lens barrel 41 made of synthetic resin in which 41a and 41b are integrally formed by projection, and a screw portion 41c formed on the front side of the inner peripheral surface of the outer lens barrel 41 and a screw formed on the front side of the outer peripheral surface side. An inner lens barrel 42 made of synthetic resin, which is movable in the front-rear direction with respect to the outer lens barrel 41 by screwing the portion 42c, and two spacing cylinders 44a made of synthetic resin on the inner peripheral surface of the inner lens barrel 42, 44b and three aspherical lenses 43a, 43, which are hermetically fitted via a cylindrical lens holder lid 45 made of synthetic resin.
It is composed of an eyepiece lens 43 composed of b and 43c, and a disk-shaped transparent panel 46 made of acrylic resin that is hermetically fitted to the peripheral edge portion 41d on the rear side of the outer lens barrel 41. Positioning of the inner lens barrel 42 with respect to the outer lens barrel 41 in the front-back direction is as follows.
It is designed to be held by a set screw 47. As a result, the color liquid crystal panel 5 of the eyepiece 43, which will be described later, is provided.
The focus position adjustment for the third image display surface 53a is performed. The lens holder lid 45 is screwed to the rear side of the inner peripheral surface of the inner lens barrel 42 so that the eyepiece lens 43 does not rattle. Further, the transparent panel 46 is located at a position deviated from the focus position of the eyepiece lens 43.

As shown in FIGS. 5 to 8, each casing-type holder 50 is made of a synthetic resin casing-type holder main body 51 whose rear (rear) surface side is opened in a substantially rectangular shape, and a rear surface of the holder main body 51. The holder cover 52 made of synthetic resin covering the opening forms a hollow casing. A transmission type color liquid crystal panel (hereinafter abbreviated as LCD) 53 as image display means is provided in the holder 50 via a position adjusting mechanism 60 so that the image display surface (image display portion) 53a is moved vertically and horizontally. It is stored in such as adjustable. L on the front of the holder body 51
A rectangular hole 51a is formed at a position facing the image display surface 53a of the CD 53, and a transparent panel 54 made of acrylic resin is hermetically fitted in the hole 51a. The transparent panel 54 is located outside the focal point of the eyepiece lens 43. Further, a cylindrical rib 51b integrally formed on the front side of the holder body 51 is formed.
Is hermetically fitted and joined to the peripheral edge portion 41d on the rear side of the outer lens barrel 41 of the lens barrel 40.

Further, as shown in FIG. 8, the holder lid 5
A rectangular hole 52a is formed at a position facing the image display surface 53a of the second LCD 53. A diffusion plate 55 is fitted in the hole portion 52a. Further, as shown in FIGS. 3 and 8, LCD drive substrates 57 are attached to the corners of the four corners of the holder lid 52 through the columns 56. The reflector 21 of the backlight 20 is inserted between the holder lid 52 and the LCD drive substrate 57.
Reference numeral 58 in FIG. 8 is a flexible substrate extending from the LCD drive substrate 57.

As shown in FIGS. 5 and 6, the position adjusting mechanism 60
Is interposed between the upper piece portion (one piece portion) 51c of the holder body 51 of the casing-shaped holder 50 and the upper surface of the LCD 53 to place the LCD 53 on the lower piece portion (the other piece portion) 51d side of the holder body 51. A leaf spring (elastic member) 61 made of metal that is pressed and urged to both sides of the lower piece portion 51d of the holder main body 51 is screwed to move the LCD 53 in a direction of pushing or separating the LCD spring 61 side. The LCD 53 is placed between the pair of adjustment screws (operation members) 62, the inner piece (one piece) 51e of the holder body 51 and one side surface of the LCD 53, and the LCD 53 is placed on the outer piece of the holder body 51. The other leaf portion 51f is made of a metal leaf spring (elastic member) 63 that is biased toward the side, and the outer leaf portion 51 of the holder body 51.
The adjusting screw (operating member) 64 is screwed in the center of f to move the LCD 53 in the direction of pressing or separating the LCD 53 toward the plate spring 63 side. As a result, each adjusting screw 64, 62, 62 of the position adjusting mechanism 60 is rotated (in the case of the adjusting screw 64, it is rotated by a driver or the like inserted through the opening 6c formed in the side piece 6a of the base plate 6). Then, the position of the image display surface 53a of the LCD 53 with respect to each holder main body 51 can be adjusted in the horizontal direction, the vertical direction, and the tilt direction.

As shown in FIGS. 1 and 12, the head cap 70 is formed of synthetic resin in an annular shape, and portions 71, 71 facing both ears extend downward in a substantially U shape.
Headphones 72 are built in the inner surface of each portion 71. In addition, the inner peripheral surface (opening) 70 of the head cap 70
In the front and rear of the center of a facing each other, there are projecting portions 73, 7 having a substantially rectangular tube shape.
4 are formed integrally with each other. A top band 80 for supporting the weight of the apparatus main body 10 and the head cap 70 is provided between the front and rear projections 73 and 74 so as to be vertically movable. That is, as shown in FIG. 11, the top band 80 has front and rear hinge shafts 82, 8
3, a metal plate spring 81, a cushioning member 84 including a sponge member that wraps the leaf spring 81, and a cover 85 that covers the cushioning member 84. The front shaft 82 of the leaf spring 81 is pivotally supported by the front protrusion 73 of the head cap 70, and the rear shaft 83 is formed in a groove-shaped opening formed in the rear protrusion 74 of the head cap. It is loosely fitted in the portion 74a and is supported so as to be movable in the front-rear direction.

Further, as shown in FIGS. 9 and 12, a side band 90 for tightening the occipital region is provided on the rear side of the inner peripheral surface 70a of the head cap 70. The side band 90 is movable to the front pad 75 side affixed to the front side of the inner peripheral surface 70a of the head cap 70 by a pair of operation knobs 91, 91 projecting from both sides of the outer peripheral surface 70b of the head cap 70. It is arranged. That is, the middle sliders 92 of the respective operation knobs 91 are slidably arranged along the slit-like long groove holes 76 formed in the central upper portions of both sides of the head cap 70. Each end of the side band 90 is connected to the slider 93. Further, a leaf spring-shaped ratchet 94 is attached to an upper portion of each middle slider 92, and an upper mountain portion 94a of the ratchet 94 is detachably engaged with a valley portion 77 formed in the ceiling of each of the long groove holes 76. Has become. Thereby, the distance between the front pad 75 and the side band 90 can be freely changed and the distance can be maintained.

According to the eyeglass-type image display device 1 of the above embodiment, before assembling the pair of optical vision units 30 and 30, the LCD 53 in the case-shaped holder 50 forming a part of each unit 30 is As shown in FIG. 5, the adjustment screw 64 of the position adjusting mechanism 60 can be moved laterally with respect to the holder main body 51, and the pair of adjustment screws 62, 62 move the LCD 53 upward relative to the holder main body 51. And can be moved in the tilt direction. With these, LC for the holder body 51
It is possible to easily adjust each position of the D53 in the horizontal direction, the vertical direction, and the tilt direction.

Further, as shown in FIG. 6, even after each optical vision unit 30 is assembled, a pair of LCDs 53,
The position of 53 can be easily adjusted. That is, the pair of left and right case-shaped holders 50, 50 have a symmetrical shape with respect to the center of each optical vision unit 30, and the adjustment screws 64 provided on the lateral sides of the case-shaped holders 50 are used to adjust the respective holders. Even after the optical vision unit 30 is assembled, it can be adjusted from the outside. At this time, both side portions 6a of the base plate 6,
Adjusting screw 6 through each driver through each opening 6c of 6a
LCD for each holder body 51 by turning 4
The lateral position of 53 can be adjusted. further,
Since there is nothing wrong with adjusting the lower side of each optical vision unit 30, each holder main body 51 can be rotated by rotating a pair of adjusting screws 62, 62 provided on the lower side of each casing-type holder 50. In contrast, the position of the LCD 53 in the vertical direction and the tilt direction can be adjusted. As a result, even after the optical visual unit 30 is assembled, the LCDs 53 in the pair of left and right case-shaped holders 50, 50 are assembled.
Are simultaneously adjusted in the left-right direction, the up-down direction, and the tilt direction by a total of six adjusting screws 62 and 64. As a result, relative alignment of the image display surfaces 53a, 53a of the pair of left and right LCDs 53, 53 can be easily performed.

As described above, since the display position of the image display surface (screen) 53a of each LCD 53 can be adjusted without depending on the dimensional accuracy and the assembly accuracy of the case-shaped holder 50, the size of the case-shaped holder 50 can be adjusted. The tolerance can be increased, and the dimensional tolerance of the shaft 31 and the like involved in the assembly can be increased. As a result, the component cost and the manufacturing cost can be kept low. Also,
Since the screen positions of the pair of left and right LCDs 53, 53 can be adjusted even after the pair of optical vision units 30, 30 are assembled, it is not necessary to adjust the position for each of the left and right lens barrels 40. All you have to do is adjust it in one step at the same time after assembly.

Next, when the spectacle-type image display device 1 is mounted on the face and used, the device body 10 is brought to the front of the face by wearing the head cap 70 on the head. When the eyepiece window portion 16 of the apparatus body 10 is viewed through the transparent window plate 17, a pair of L's are displayed by a portable video player or the like.
The image projected on the image display surface 53a of each of the CDs 53, 53 is illuminated by the fluorescent lamp 22 and the pair of eyepieces 4
Each retina a of the left and right eyeballs A and A is magnified through 3, 43
Projected on. Since the positions of the respective image display surfaces 53a of the pair of LCDs 53, 53 are relatively aligned left and right, the screens of the pair of LCDs 53, 53 are displayed at the same position, and there is no discomfort even when used for a long time. Does not get worse.

At this time, since the weight of the apparatus main body 10 is applied to the head through the top band 80 of the head cap 70, the top band 80 receives a reaction force from the head, and the leaf spring 81 of the top band 80 shows It is bent upward at 11 as indicated by the dotted line. At this time, the shaft 83 attached to the rear end side of the leaf spring 81 moves forward in the opening 74a. Since the elastic force of the leaf spring 81 that has been pushed and bent here and the weight of the apparatus body 10 are set to be balanced, the apparatus body 10 is suspended by the top band 80 in a balanced state. Thereby, the device body 10 can be moved vertically with respect to the head,
The positions of the pair of eyepieces 43, 43 of the apparatus body 10 can be adjusted to optimal vertical positions for the left and right eyeballs A, A. Further, when the operation knob 91 shown in FIGS. 9 and 12 is moved to the front side at the optimum position of the apparatus main body 10, the side band 90 does not loosen by tightening the occipital region,
The positions of the pair of eyepieces 43, 43 of the apparatus body 10 can be held at optimal positions for the left and right eyeballs A, A.

As shown in FIG. 7, the transparent window plate 17 attached to the eyepiece window portion 16 of the apparatus main body 10 has its both sides 17a, 17a curved outward with respect to the left and right eyeballs A, A. The external light C from the periphery of the rear cabinet 12 of the apparatus body 10 is reflected by the transparent window plate 17 because the curved window has a curvature or an angle. However, since the transparent window plate 17 has an angle, the reflected light C ₁ is between the left and right eyeballs A, A (inside)
It becomes difficult to enter the left and right eyeballs A and A. As a result, unnecessary light other than the image on each LCD 53 does not enter each eyeball A, and the transparent window plate 17
Through this, the image on each LCD 53 becomes easy to see. Since the reflection of the transparent window plate 17 can be prevented only by bending the transparent window plate 17, the cost can be easily increased without increasing the cost. Furthermore, since it is not necessary to raise a wall around the eyepiece window portion 16 of the rear cabinet 12 or to adopt a complicated structure for covering the face, it is possible to reduce the cost of the entire eyeglass-type image display device 1. .

Further, each lens barrel 4 constituting a pair of optical vision units 30.30 provided in the apparatus main body 10.
Since the 0 and the case-shaped holder 50 have a closed structure, it is difficult for dust and the like to enter the lens barrel 40 and the case-shaped holder 50. Further, even if dust or the like adheres to the transparent panel 46 of the lens barrel 40 or the transparent panel 54 of the casing-type holder 50, the positions of the transparent panel 46 of the lens barrel 40 and the transparent panel 54 of the casing-type holder 50. Are arranged at positions deviated from the focus position of the eyepiece lens 43, so that adhering substances such as dust and dust are blurred and hardly visible, and do not affect the images projected on the retinas a of the left and right eyeballs A and A. Further, the cylindrical rib 51b formed integrally with the holder main body 51 of the case-shaped holder 50 is integrally fitted and joined to the peripheral edge portion 41d on the rear side of the outer lens barrel 41 of the lens barrel 40 in a hermetically sealed manner. Since each optical vision unit 30 is configured, the lens barrel 4 can be used for maintenance, inspection, and repair of the eyepiece lens 43, the LCD 53, and the like.
It is only necessary to disassemble or replace each block of the 0 or the housing-type holder 50, and it is difficult for dust and the like to enter into each block when reassembling each block.

Furthermore, as shown in FIG. 8, a fluorescent lamp 22 is arranged on the surface of the housing-shaped holder 50 opposite to the transparent panel 54 via a reflector 21, and the fluorescent lamp 22 and the housing-shaped holder 50 are arranged. Since the LCD 53 inside and the eyepiece lens 43 inside the lens barrel 40 are respectively arranged on the linear optical axis C ₀ , each optical visual unit 30 can be made compact and lightweight, and the spectacle type image display device 1 can be made compact. The weight can be reduced.

According to the above embodiment, the top band 8
0 is movable in the vertical direction by means of a leaf spring 81 and a rear shaft 83. However, like a top band 80 'of another embodiment shown in FIG. 13, a pair of rubber bands 86 are provided in front of and behind a base material 81'. , 86 may be provided and the respective rubber bands 86 may be expanded and contracted to move the top band 80 ′ in the vertical direction.

[0030]

As described above, according to the present invention, each image of the pair of image display means provided in the main body of the apparatus is magnified by the pair of eyepieces and projected on the retinas of the left and right eyeballs. In the spectacles-type image display device described above, an annular head cap for mounting the device body on the face is provided on the back side of the device body, and the weight of the device body and the head cap is supported in the center of the opening of the head cap. Since the top band is provided so as to be movable in the vertical direction, the pair of eyepieces of the apparatus body can be easily adjusted to the optimum vertical position for the left and right eyeballs.

Further, since the side band for tightening the head is provided on the inner peripheral surface side of the head cap, the optimum mounting state of the apparatus main body can be maintained for a long time, and the apparatus can withstand long-term use. You can

Further, the side band is movably provided on the inner peripheral surface side of the head cap by the operation knob projecting on the outer peripheral surface side of the head cap, so that the tightened state of the head cap on the head is outside. It can be adjusted more easily. As a result, it is possible to easily mount the apparatus main body and adjust the positions of the images on the pair of image display means, and improve the usability.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an eyeglass-type image display device showing an embodiment of the present invention.

FIG. 2 is a perspective view of an optical visual device used in the eyeglass-type image display device.

FIG. 3 is a perspective view of the optical visual device as viewed from the back side.

FIG. 4 is a rear view of the lens barrels used in the pair of optical vision units of the optical vision device.

FIG. 5 is a cross-sectional view of a casing-type holder used for the pair of optical vision units.

FIG. 6 is an explanatory view showing a cross section of a main part of the pair of optical vision units.

FIG. 7 is a cross-sectional view of the optical visual device arranged in the device body of the eyeglass-type image display device.

FIG. 8 is a vertical cross-sectional view of the optical vision unit.

FIG. 9 is a perspective view of a head cap used in the eyeglass-type image display device.

FIG. 10 is a sectional view around the operation knob of the head cap.

FIG. 11 is a sectional view of a top band of the head cap.

FIG. 12 is a perspective view of the eyeglass-type image display device.

FIG. 13 is a sectional view of a top band of a head cap of another embodiment.

FIG. 14 is a schematic configuration diagram of a conventional eyeglass-type image display device.

FIG. 15 is a perspective view showing a usage state of a conventional eyeglass-type image display device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Glasses type image display device 10 ... Device main body 43, 43 ... A pair of eyepieces 53, 53 ... A pair of LCDs (a pair of image display means) 70 ... Head cap 70a ... Inner peripheral surface (opening) 70b ... Outer peripheral surface 80 ... Top band 90 ... Side band 91 ... Operation knob A ... Eyeball a ... Retina

Claims (3)

[Claims] 1. A spectacle-type image display device in which each image of a pair of image display means provided in the device body is magnified by a pair of eyepieces and projected on the retinas of the left and right eyeballs. An annular head cap for mounting the device body on the face is provided on the back side of the body, and a top band for supporting the weight of the device body and the head cap is provided at the center of the opening of the head cap so as to be vertically movable. An eyeglass-type image display device characterized by the above. 2. The spectacles-type image display device according to claim 1, wherein a side band for tightening a head is provided on the inner peripheral surface side of the head cap. 3. The spectacle-type image display device according to claim 2, wherein the side band is movably provided on the inner peripheral surface side of the head cap by an operation knob protruding on the outer peripheral surface side of the head cap. A characteristic eyeglass-type image display device.