JP2006126590A - Video display device - Google Patents

Video display device Download PDF

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Publication number
JP2006126590A
JP2006126590A JP2004316029A JP2004316029A JP2006126590A JP 2006126590 A JP2006126590 A JP 2006126590A JP 2004316029 A JP2004316029 A JP 2004316029A JP 2004316029 A JP2004316029 A JP 2004316029A JP 2006126590 A JP2006126590 A JP 2006126590A
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Prior art keywords
display device
video display
prism
light
unit
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JP2004316029A
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JP4581632B2 (en
Inventor
Hideaki Haraga
Takashi Igarashi
Tomoaki Tamura
Yuichi Toyoizumi
Haruhiko Yoshimeki
隆史 五十嵐
秀昭 原賀
晴彦 吉目木
知章 田村
友一 豊泉
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Konica Minolta Photo Imaging Inc
コニカミノルタフォトイメージング株式会社
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Priority to JP2004316029A priority Critical patent/JP4581632B2/en
Publication of JP2006126590A publication Critical patent/JP2006126590A/en
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Publication of JP4581632B2 publication Critical patent/JP4581632B2/en
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Abstract

<P>PROBLEM TO BE SOLVED: To realize a video display device with which user's feeling of weariness can be raised by miniaturizing it and by making it lightweight. <P>SOLUTION: A video display device of the present invention is a video display device which is equipped with a light projecting unit 20 which projects video light in a direction of connecting between left and right eyes; an ocular optical unit 10R (having a first prism 11, a hologram element 13 and a second prism 12), which is integrated with the light-projecting unit 20, and which guides video light from the light-projecting unit 20 to either of an eye of the right or the left or to both eyes, and the device is characterized in that the light-projecting unit 20 is mounted on spectacles, while being located between a right lens 10R and a left lens 10L of the spectacles. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an image display device, and more specifically, a head mounted display (HMD) and a head-up display (HUD) that project and display a two-dimensional image on a viewer's eye through a hologram element using a hologram element. The present invention relates to a video display device such as Up Display.

  An image display device such as a head-mounted HMD or HUD includes a light projecting unit that emits image light and an eyepiece optical unit that guides the image light to the user's eyes, and image light projected from the light projecting unit. Is guided to the user's eyes through the eyepiece optical unit, so that the user can observe the image.

  Such a video display device is large and heavy, and the shape and size of the image display device are different from those of general glasses. It was not always easy to use because of a sense of discomfort.

  Therefore, as a recent video display device, with the miniaturization of the light projection unit and the eyepiece optical unit, a video display device provided with a light projection unit by a support such as a clip on the upper or lower part of the spectacle lens, An image display device in which an eyepiece optical unit is dispersed has been devised.

For example, a display unit that includes a display device, an optical system that magnifies and displays a display image created by the display device, and a housing that integrates the display device and the optical system together, and a clamp is attached to the display unit. There is disclosed a small display device that is provided and has the clamp attached to a spectacle lens or a spectacle frame (see Patent Document 1).

  A display device having a spectacle-shaped frame portion, a support portion, and a micro display unit, wherein the support portion is attached to the lower end of the edge portion of the rim portion in the frame portion, and the micro display unit is A display device that is rotatably supported is disclosed (see Patent Document 2).

A signal / image conversion unit that converts an image signal into an image, an image conduction tube that transmits the image signal in the form of an image, and an image display unit that displays an image transmitted by the image conduction tube. A display device is disclosed in which the image conversion unit and the image display unit are coupled using an image transmission tube so as to be spatially separated (see Patent Document 3).
JP 2000-112396 A JP 2003-46903 A JP-A-10-123453

  However, since the light projecting units of the spectacle-mounted or eyeglass-integrated video display device as in Patent Document 1 or 2 are provided on the top and bottom or the left and right of the spectacle lens, the center of gravity of the spectacles is the direction in which the light projecting unit is provided. Since the weight balance of the spectacles collapses, a moment force is generated in the spectacles, and there is a problem that the spectacles are bent or the wearing feeling is deteriorated for the user. Further, even when the light projecting unit and the eyepiece optical unit are separated as in Patent Document 3, the image transmission tube is supported by one pattern of the spectacles, and the vicinity of the one eyeglass lens from the pattern part. Since it is configured to project onto the virtual image optical system provided in the eyeglass, there is a problem that moment force is generated in the glasses, and the wearing feeling is deteriorated for the user.

  An object of the present invention is to realize a video display device that can be reduced in size and weight and improve a user's wearing feeling.

The invention according to claim 1 is a projection unit that projects image light in a direction connecting the left and right eyes;
An eyepiece optical unit that is integrated with the light projecting unit and guides image light from the light projecting unit to one or both of the left and right eyes, It is characterized in that it is an image display device characterized in that it is located between and attached to the glasses.

  According to a second aspect of the present invention, in the video display device according to the first aspect, the eyepiece optical unit is formed integrally with the spectacle lens.

  According to a third aspect of the present invention, in the video display device according to the first aspect, the eyepiece optical unit is formed separately from the eyeglass lens.

  According to a fourth aspect of the present invention, in the video display device according to the third aspect, the eyepiece optical unit is disposed inside the spectacle lens.

  According to a fifth aspect of the present invention, in the video display device according to the third aspect, the eyepiece optical unit is disposed outside the spectacle lens.

  According to a sixth aspect of the present invention, in the video display device according to any one of the third to fifth aspects, an engagement member is provided between the left and right spectacle lenses in the spectacles, and the engagement member is interposed therebetween. The light projecting unit is configured to be detachable from the glasses.

  According to a seventh aspect of the present invention, in the video display device according to the sixth aspect of the present invention, the video display device further includes a cover unit that can be attached to and detached from the glasses via the engaging member.

  According to an eighth aspect of the present invention, in the video display device according to any one of the first to seventh aspects, the eyepiece optical unit includes a prism that diffracts the video light from the light projecting unit and guides it to the eye. And the prism is formed using a reflection film of a hologram.

  According to the first aspect of the present invention, since the light projecting unit is positioned between the left and right spectacle lenses and attached to the spectacles, the right and left weight balance of the spectacles can be improved, and thus the wearing feeling of the spectacles can be improved. Can be improved.

  According to the second aspect of the present invention, it is possible to realize an image display device that can obtain the same effect as the first aspect and that is less uncomfortable with the user's surroundings.

  According to the third aspect of the present invention, the same effects as those of the first aspect can be obtained, and even if the combination with the spectacle lens having the spectacle lens that the user normally uses is used, It is possible to realize a video display device that balances the left and right weights.

  According to the fourth aspect of the invention, the same effect as in the third aspect can be obtained, and the eyepiece optical unit can be arranged inside the spectacle lens.

  According to the fifth aspect of the present invention, the same effect as in the third aspect can be obtained, and the eyepiece optical unit can be disposed outside the spectacle lens.

  According to the sixth aspect of the present invention, the same effect as in any one of the third to fifth aspects can be obtained, and when video display is unnecessary, it can be used as normal glasses. it can.

  According to the seventh aspect of the invention, the same effect as that of the sixth aspect can be obtained. In addition, when the projector unit is not attached, it can be used as ordinary glasses without a sense of incongruity.

  According to the eighth aspect of the present invention, the same effect as in any one of the first to seventh aspects can be obtained, and the difference in the amount of light transmission between the reflection film portion of the hologram and the surrounding prism portion. Therefore, it is easy to observe both the image and the outside world.

[Embodiment 1]
Hereinafter, Embodiment 1 of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a perspective view of a video display device 1 according to the first embodiment.
As shown in FIG. 1, in the video display device 1, prisms 10 </ b> R and 10 </ b> L as eyeglass lenses are connected by a light projecting unit 20, and the light projecting unit 20 has a pair of left and right nose pads that are hung on the user's nose. 31R and 31L are attached. At both ends of the prisms 10R and 10L, temple portions 32R and 32L that extend to the user's ear are extended. The light projecting unit 20 is connected to the cable 41 for power supply and signal supply from the operation unit 40. With such a configuration, the prisms 10R and 10L are arranged in front of the left and right eyes of the user.

  In the first embodiment, the operation unit 40 and the light projecting unit 20 are shown as separately provided. However, the operation unit 40 may be provided together with the light projecting unit 20.

The prism 10L has a flat plate shape and is formed of a single member.
The prism 10R has a flat plate shape like the prism 10L. However, the prism 10R is not a single member, but includes a first prism 11, a second prism 12, and a hologram element 13 that is a hologram reflection film. The first prism 11 and the second prism 12 constituting the prism 10R have complementary shapes, and are joined so that there is no gap and the surface is continuous.
The prism 10L, the first prism 11, and the second prism 12 are made of the same material, and there is no difference in refractive index between these three members. In addition, the prisms 10 </ b> R and 10 </ b> L are provided with attachment holes for connection to the light projecting unit 20.

  Except that the first prism 11 has an end portion that is not joined to the second prism 12, the prisms 10R and 10L are symmetric like a general spectacle lens.

  A user wearing the video display device 1 of the present invention in front of his / her face observes the outside through the prisms 10R and 10L.

  The light projecting unit 20 is mounted between the left and right prisms 10R and 10L, and projects image light onto the first prism 11 in a direction connecting the left and right eyes.

FIG. 2 shows a cross-sectional view of the prism 10R and the light projecting unit 20 in the first embodiment.
As shown in FIG. 2, the light projecting unit 20 includes a light source 21, a condenser lens 22, a display panel 23, a housing 24, and the like.

  The light source 21 is composed of a light emitting diode (LED) or the like, and emits irradiation light to the display panel 23. The condensing lens 22 condenses the light from the light source 21 and uniformly guides it to the entire surface of the display panel 23. The display panel 23 is composed of a transmissive liquid crystal display (LCD), displays an image to be displayed to the user, and is inclined with respect to the surface 11 a of the first prism 11. .

  The housing 24 covers and holds the light source 21, the condenser lens 22, and the display panel 23, and supports the nose pad portion 31 and the prisms 10R and 10L. The housing 24 includes connecting portions 25R and 25L for supporting the prisms 10R and 10L.

  The connecting portion 25R sandwiches one end of the prism 10R, and a bolt 25a is inserted into the mounting hole 14 provided in the prism 10R from one end of the connecting portion 25R. The bolt 25a is screwed to the other end of the coupling portion 25R, and is further screwed to the nut 25b. Since the connecting portion 25L for supporting the prism 10L has the same configuration, illustration and description thereof are omitted.

  For the light emission of the light source 21 and the video display on the display panel 23, power and video signals are supplied by the operation unit 40.

The first prism 11 is made of transparent glass or resin.
The portion of the first prism 11 on the side where light is projected from the display panel 23 has a wedge shape that is thicker on the light projecting unit 20 side than on the temple 32R side. The part shape of the first prism 11 joined to the second prism 12 is made so that the front surface (surface far from the eye E) approaches the rear surface (surface close to the eye E) toward the center of the prism 10R. It has a wedge shape. The front surface of the wedge-shaped portion (the bonding surface with the second prism 12) is a flat surface, and the hologram element 13 is formed on this flat surface.
The hologram element 13 is positioned immediately in front of the user's eye E when the video display device 1 is mounted.

The first prism 11 guides the image light from the display panel 23 to the user's eye E, and displays a virtual image of the image displayed on the display panel 23.
The first prism 11 guides the image light from the display panel 23 from the surface 11a of the first prism 11 to the hologram element 13 while totally reflecting the light from the front surface and the rear surface a plurality of times. The hologram element 13 diffracts the guided light to make it enter the eye E while making it a light beam close to parallel light. Thereby, the virtual image of the image displayed on the display panel 23 is displayed on the user's eye E.

  The hologram element 13 hardly acts on light from the outside world, and the virtual image is observed while being superimposed on the central portion of the outside world image. Further, by using the hologram element 13, the prism 10R has a so-called high see-through characteristic in which a difference in light transmission amount between the reflection film portion of the hologram and the peripheral prism portion is small, and observation of both the image and the outside world is achieved. Becomes easier.

  In this way, the first prism 11, the second prism 12, and the hologram element 13 constitute an eyepiece optical unit having translucency.

  The video display device 1 according to the first embodiment is configured to display a video on the right eye, but may be configured to display a video on the left eye. It may be configured to display.

  In this way, the weight balance between the left and right of the spectacles is achieved by adopting a configuration in which the light projecting unit 20 that projects the image light in the direction connecting the left and right females is positioned between the prisms 10R and 10L and attached to the spectacles. Thus, it is possible to realize the video display apparatus 1 with improved wearing feeling. Further, since the eyepiece optical unit is integrally formed as the prism 10R, it is possible to realize the video display device 1 with less discomfort to the user's surroundings.

[Embodiment 2]
Hereinafter, the second embodiment of the present invention will be described in detail with reference to the drawings.
The video display device according to the second embodiment is a video display device combined with eyeglasses such as eyesight correction glasses or sunglasses that are used to correct the user's vision. Parts similar to those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

FIG. 3 shows a partial cross-sectional view of the spectacle lens and the light projecting unit 20 according to the second embodiment.
In the partial cross-sectional view of the video display device of the second embodiment shown in FIG. 3, a vision correction lens 50R as an eye lens for the right eye and a prism 60 as an eyepiece unit are formed as separate bodies. The prism 60 is arranged on the inner side of the vision correction lens 50R (the side close to the eye with respect to the vision correction lens 50R, hereinafter referred to as the front of the user).

  The light projecting unit 20 includes a light source 21, a condenser lens 22, a display panel 23, a housing 26, and the like.

  The housing 26 covers and holds the light source 21, the condensing lens 22, and the display panel 23, and also includes a pair of left and right nose pads 31R (the nose pad portion 31L is not shown), a vision correction lens 50R, and a vision correction lens for the left eye. (Not shown), the prism 60 is supported. The housing 26 includes a vision correction lens 50R, a connection portion 26R for supporting the prism 60, and a connection portion (not shown) for supporting the vision correction lens for the left eye.

  The connecting portion 26R sandwiches one end of the vision correction lens 50R and the prism 60, and the bolt 26a is inserted from one end of the connecting portion 26R into the mounting hole 51 provided in the vision correction lens 50R and the mounting hole 64 provided in the prism 60. Is done. The bolt 26a is screwed to the other end of the coupling portion 26R, and is further screwed to the nut 26b. Since the connecting part for supporting the left eye vision correction lens is substantially the same as the structure in which the connecting part 25L of the first embodiment supports the left eye prism 10L, illustration and description thereof are omitted.

  The vision correction lens 50R is provided with an attachment hole 51 for being connected to the connecting portion 26R.

The prism 60 has a flat plate shape, and includes a first prism 11, a hologram element 13, and a third prism 61. The first prism 11 and the third prism 61 constituting the prism 60 have complementary shapes, and are joined so that there is no gap and the surface is continuous.
The first prism 11 and the third prism 61 are made of the same material, and there is no difference in refractive index between them. The prism 60 is provided with attachment holes 64 for connecting to the connecting portion 26R.

  In order to reduce the size and weight, the prism 60 preferably has the smallest size according to the shape of the hologram element 13. A user wearing the video display device of the second embodiment in front of his / her eyes can observe the outside world and the video through the prism 60 and the vision correction lens 60R.

Since the site | part shape of the 1st prism 11 joined with the 3rd prism 61 is the same as that of Embodiment 1, description is abbreviate | omitted.
The first prism 11, the third prism 61, and the hologram element 13 constitute a translucent eyepiece optical unit.

  FIG. 4 shows another example of a partial cross-sectional view of the spectacle lens projection unit 20 according to the second embodiment. 4 is a partial cross-sectional view of another example of the video display device according to the second embodiment, in which a vision correction lens 50R as an eye lens for the right eye and a prism 60 as an eyepiece unit are formed separately. The configuration shown in FIG. 3 is the same as that shown in FIG. 3 except that the prism 60 is arranged outside the vision correction lens 50R (the side far from the eye with respect to the vision correction lens 50R, hereinafter referred to as the user's eye). Therefore, detailed description is omitted.

  The video display device according to the second embodiment is configured to display video on the right eye, but may be configured to display video on the left eye, and displays video on both eyes. It may be configured to.

  In this way, even when combined with spectacle lenses that are usually used by users, the left and right weight balance of the spectacles can be improved while correcting vision, and the wearing feeling is improved. A video display device can be realized.

[Embodiment 3]
The third embodiment of the present invention will be described below in detail with reference to the drawings.
The video display device 3 according to the third embodiment is a video display device 3 in which a light projecting unit and an eyepiece optical unit can be attached to and detached from a user's glasses. Parts similar to those in the first or second embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

FIG. 5 is a perspective view of the video display device 3 according to the third embodiment.
As shown in FIG. 5, the vision correction lenses 50R and 50L as the eyeglass lenses of the video display device 3 are connected by a socket part 210 as an engaging member, and the socket part 210 has a nose pad to be hung on the user's nose. The portions 31R and 31L are attached. At both ends of the vision correction lenses 50R and 50L, temple portions 32R and 32L that extend to the user's ear are extended.

  The socket part 210 has connection parts 211R and 211L for supporting the vision correction lenses 50R and 50L, and a wedge-shaped concave joint surface 212 to which the cover unit 220 and the light projecting unit 230 can be attached and detached, and the vision correction lens 50R, It is provided between 50L.

  The cover unit 220 includes a wedge-shaped convex joint surface 222 joined to the concave joint surface 212 of the socket part 210. The cover unit 220 is a cover that covers the concave joint portion 212 of the socket portion 210 when the light projecting unit 230 is removed from the socket portion 210. Thereby, even if it is a case where the light projection unit 230 is not mounted | worn, it can be used without a sense of incongruity as normal spectacles.

  The light projecting unit 230 includes a wedge-shaped convex joint surface 232 joined to the concave joint surface 212 of the socket part 210. The light projecting unit 230 supports the prism 60 of the eyepiece optical system. The light projecting unit 230 is connected to the cable 41 for power supply and signal supply from the operation unit 40. By attaching the light projecting unit 230 to the socket part 210, the prism 60 is arranged in front of the user's eyes.

  In the present embodiment, the socket portion 210 is provided with a wedge-shaped concave joint surface, and the cover unit 220 and the light projecting unit 230 are each provided with a wedge-shaped convex joint surface, but the cover unit 220 is provided via the socket portion 210. As long as the light projecting unit 230 is detachable, another configuration may be used.

FIG. 6 is a partial cross-sectional view of the vision correction lens 50R, the prism 60, and the light projecting unit 20 according to the third embodiment.
As shown in FIG. 6, the vision correction lens 50 </ b> R supported by the socket part 210 and the temple part 32 </ b> R is disposed in front of the user's eyes and supported by the prism 60 and the light projecting unit 210 attached to the socket part 210. The prism 60 is arranged behind the vision correction lens 50R.

  The light projecting unit 20 includes a light source 21, a condenser lens 22, a display panel 23, a housing 27, and the like, and is configured to be detachable from the socket unit 210.

  The housing 27 covers and holds the light source 21, the condenser lens 22, and the display panel 23, and supports the prism 60. The housing 27 is formed with a connecting portion 27R for supporting the prism 60, and a convex joint surface 232 joined to the concave joint surface 212 of the socket portion 210 on the outer peripheral surface of the housing 27.

  The connecting portion 27R sandwiches one end portion of the prism 60, and the bolt 27a is fitted into the mounting hole 64 provided in the prism 60 from one end of the connecting portion 27R. The bolt 27a is screwed to the other end of the connecting portion 27R, and is further screwed to the nut 27b.

  The prism 60 is an eyepiece optical unit composed of the first prism 11, the third prism 61, and the hologram element 13. The prism 60 is the same as in the second embodiment except that an attachment hole 67 for connection to the connection portion 27R is provided. Since the configuration is substantially the same, detailed description is omitted.

  The vision correction lenses 50 </ b> R and 50 </ b> L are provided with attachment holes 51 for being connected to the connection parts 211 </ b> R and 211 </ b> L of the socket part 210, respectively.

  The connecting portion 211R of the socket portion 210 is screwed into the mounting hole 51 provided in the vision correction lens 50R from one end of the connecting portion 27R with the screw 211a. Since the connecting portion 211L for supporting the vision correction lens 50L has the same configuration, illustration and description thereof are omitted.

  Note that the vision correction lens 50R is not limited to the configuration in which the prism 60 is disposed in front of the eye, and the prism 60 may be disposed in front of the eye, and the vision correction lens 50R may be disposed in the rear of the eye.

  The video display device 3 according to the third embodiment is configured to display a video on the right eye, but may be configured to display a video on the left eye. It may be configured to display. In the present invention, a colorless or colored flat glass or flat resin (so-called dummy lens) having the same shape and having no visual acuity correction function can be used instead of the visual acuity correction lens.

  As described above, the socket unit 210 is provided between the left and right vision correction lenses, and the light projecting unit 230 and the cover unit 220 are detachably provided via the socket unit 210. An image display device that can be improved and has an improved wearing feeling can be realized.

  Further, the present invention is not limited to the contents of the above embodiment, and can be appropriately changed without departing from the gist of the present invention.

1 is a perspective view of a video display device 1 according to Embodiment 1. FIG. A partial cross-sectional view of the prism 10R and the light projecting unit 20 in the first embodiment is shown. A partial cross-sectional view of the spectacle lens and the light projection unit 20 in the second embodiment is shown. Another example of a partial cross-sectional view of the spectacle lens light projecting unit 20 according to the second embodiment is shown. The perspective view of the video display apparatus 3 in this Embodiment 3 is shown. A partial cross-sectional view of the vision correction lens 50R, the prism 60, and the light projecting unit 20 in the third embodiment is shown.

Explanation of symbols

1, 3 Video display device 10R, 10L Prism 11 First prism 11a Surface 12 Second prism 13 Hologram element 20 Projection unit 21 Light source 22 Condensing lens 23 Display panels 24, 26 Housings 25a, 26a, 27a Bolts 25b, 26b, 27b Nut 25R, 25L, 26R, 27R Connecting portion 31R, 31L Nose pad portion 32R, 32L Temple portion 40 Operation unit 41 Cable 50R, 50L Vision correction lens 51, 64 Mounting hole 61 Third prism 210 Socket portion 211R, 211L Connecting portion 211a Screw 212 Concave surface 220 Cover unit 222 Convex surface 230 Projection unit 232 Convex surface E Eye

Claims (8)

  1. A light projecting unit that projects image light in a direction connecting the left and right eyes;
    An eyepiece optical unit that is integrated with the light projecting unit and guides image light from the light projecting unit to one or both of the left and right eyes,
    The light projecting unit is located between the right and left spectacle lenses of the spectacles and is attached to the spectacles;
    A video display device characterized by the above.
  2. The video display device according to claim 1,
    The eyepiece optical unit is formed integrally with the eyeglass lens;
    A video display device characterized by the above.
  3. The video display device according to claim 1,
    The eyepiece optical unit is formed separately from the eyeglass lens;
    A video display device characterized by the above.
  4. The video display device according to claim 3.
    The eyepiece optical unit is disposed inside the spectacle lens;
    A video display device characterized by the above.
  5. The video display device according to claim 3.
    The eyepiece optical unit is disposed outside the eyeglass lens;
    A video display device characterized by the above.
  6. In the video display device according to any one of claims 3 to 5,
    An engaging member is provided between the left and right eyeglass lenses in the glasses, and the light projecting unit is configured to be detachable from the glasses via the engaging member.
    A video display device characterized by the above.
  7. The video display device according to claim 6,
    Having a cover unit detachable from the glasses via the engaging member;
    A video display device characterized by the above.
  8. In the video display device according to any one of claims 1 to 7,
    The eyepiece optical unit includes a prism that diffracts image light from the light projecting unit and guides the light to an eye, and the prism is formed using a hologram reflection film;
    A video display device characterized by the above.
JP2004316029A 2004-10-29 2004-10-29 Video display device Active JP4581632B2 (en)

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WO2008081971A1 (en) * 2006-12-28 2008-07-10 Scalar Corporation Head mount display
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JP2010517090A (en) * 2007-01-25 2010-05-20 ローデンストック.ゲゼルシャフト.ミット.ベシュレンクテル.ハフツング Glasses and spectacle lenses for data reflection
JP2013073187A (en) * 2011-09-29 2013-04-22 Seiko Epson Corp Virtual image displaying device and manufacturing method of the same
JP2013186230A (en) * 2012-03-07 2013-09-19 Seiko Epson Corp Virtual image display device
WO2016118370A1 (en) * 2015-01-20 2016-07-28 Microsoft Technology Licensing, Llc Head-mounted display device with stress-resistant components
JP2016157135A (en) * 2016-04-13 2016-09-01 セイコーエプソン株式会社 Virtual image display device
WO2018003205A1 (en) * 2016-06-27 2018-01-04 富士フイルム株式会社 Spectacles with image display function

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