WO2021256402A1 - 遮光部材、ヘッドマウントディスプレイ - Google Patents

遮光部材、ヘッドマウントディスプレイ Download PDF

Info

Publication number
WO2021256402A1
WO2021256402A1 PCT/JP2021/022355 JP2021022355W WO2021256402A1 WO 2021256402 A1 WO2021256402 A1 WO 2021256402A1 JP 2021022355 W JP2021022355 W JP 2021022355W WO 2021256402 A1 WO2021256402 A1 WO 2021256402A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
head
shielding member
mounted display
user
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2021/022355
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
嘉由紀 大塚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Interactive Entertainment Inc
Original Assignee
Sony Interactive Entertainment Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Interactive Entertainment Inc filed Critical Sony Interactive Entertainment Inc
Priority to EP21825899.4A priority Critical patent/EP4171020A4/en
Priority to CN202180031001.0A priority patent/CN115443649A/zh
Priority to JP2022531774A priority patent/JP7663574B2/ja
Priority to US18/001,088 priority patent/US12585116B2/en
Publication of WO2021256402A1 publication Critical patent/WO2021256402A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01Head-up displays
    • G02B27/017Head mounted
    • G02B27/0172Head mounted characterised by optical features
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/20Light-tight connections for movable optical elements
    • G02B7/22Extensible connections, e.g. bellows
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01Head-up displays
    • G02B27/017Head mounted
    • G02B27/0176Head mounted characterised by mechanical features
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01Head-up displays
    • G02B27/0149Head-up displays characterised by mechanical features
    • G02B2027/0154Head-up displays characterised by mechanical features with movable elements

Definitions

  • the present invention relates to a light-shielding member and a head-mounted display.
  • a head-mounted display is known to include a light-shielding member (sometimes referred to as a light shield) that reduces external light incident on a user's eye.
  • a light-shielding member sometimes referred to as a light shield
  • the light-shielding member does not have a gap between it and the user's face, and it is preferable that the light-shielding member does not cause discomfort to the user due to the contact pressure on the face.
  • the shape and size of a person's face vary depending on age, gender, race, and the like, and a light-shielding member suitable for faces of various shapes and sizes is desired.
  • the present invention has been made in view of the above problems, and one of the objects thereof is to provide a light-shielding member having reduced contact pressure and a head-mounted display.
  • An example of the light-shielding member proposed in the present disclosure is a light-shielding member that reduces external light incident on the eyes of a user wearing a head-mounted display, and has a mounting portion mounted on the housing of the head-mounted display and the mounting portion. It has a light-shielding wall extending rearward from the portion, and the light-shielding wall is in contact with the periphery of the eye of the user wearing the head-mounted display, and at least a part of the bellows that expands and contracts according to the contact pressure. Included in.
  • An example of the head-mounted display proposed in the present disclosure is a housing, a wearing band extending rearward from the housing and worn on the user's head, and a light-shielding member that reduces external light incident on the user's eyes.
  • the directions indicated by X1 and X2 in the figure are defined as right and left, the directions indicated by Y1 and Y2 in the figure are defined as forward and backward, respectively, and the directions indicated by Z1 and Z2 in the figure are respectively. Upper and lower. Each of these directions indicates a direction as seen by the user wearing the head-mounted display 1. Further, in the following description, the head-mounted display 1 is referred to as an HMD (Head Mounted Display) 1.
  • HMD Head Mounted Display
  • FIG. 1 is a perspective view showing the overall configuration of the HMD according to the present embodiment. As shown in FIG. 1, the HMD 1 has a device main body 10 and a mounting band 20.
  • the mounting band 20 extends rearward from the device main body 10.
  • the wearing band 20 surrounds the user's head.
  • the wearing band 20 is annular, and it is preferable that the user's head is arranged inside the wearing band 20.
  • the apparatus main body 10 accommodates at least the display 11, the right lens 12R and the left lens 12L (see FIG. 6), the display 11, the right lens 12R, and the left lens 12L, and is a housing constituting the appearance of the apparatus main body 10. It has 10a and.
  • the display 11 displays a three-dimensional image.
  • the present invention is not limited to this, and the image displayed by the display 11 may be a two-dimensional image.
  • the display 11 may be, for example, a liquid crystal display device or an organic electroluminescence display device, but the type thereof is not particularly limited.
  • the apparatus main body 10 covers the user's eyes.
  • the housing 10a may be made of, for example, a resin.
  • the mobile terminal may be housed in the device main body 10 and the image light from the display of the housed mobile terminal may be guided to the user's eyes.
  • a smartphone may be used as the mobile terminal.
  • the mounting band 20 may be configured to support the device main body 10 so as to be relatively movable in the front-rear direction with respect to the device main body 10. With such a configuration, the distance between the user's eye and the right lens 12R and the left lens 12L can be adjusted. Along with this, the distance of the light-shielding member 30 described later to the user's face can be adjusted, and the contact pressure on the user's face can be adjusted. Further, the wearing band 20 may have a structure whose length can be adjusted according to the size of the user's head. The wearing band 20 may be worn on the user's head and supports the device main body 10, and is not limited to the configuration shown in FIG. 1.
  • FIG. 2 is a perspective view of the light-shielding member of the present embodiment as viewed diagonally from the front.
  • FIG. 3 is a front view of the light-shielding member of the present embodiment as viewed from the front.
  • FIG. 4 is a perspective view of the light-shielding member of the present embodiment as viewed diagonally from the rear.
  • FIG. 5 is a rear view of the light-shielding member of the present embodiment as viewed from the rear.
  • FIG. 6 is a top view of the light-shielding member of the present embodiment as viewed from above.
  • FIG. 1 is a perspective view of the light-shielding member of the present embodiment as viewed diagonally from the front.
  • FIG. 3 is a front view of the light-shielding member of the present embodiment as viewed from the front.
  • FIG. 4 is a perspective view of the light-shielding member of the present embodiment as viewed diagonally from the rear.
  • FIG. 5 is a rear
  • FIG. 6 schematically shows a part of the internal structure of the apparatus main body 10.
  • FIG. 7 is a bottom view of the light-shielding member of the present embodiment as viewed from below.
  • FIG. 8 is a perspective view of the light-shielding member of the present embodiment as viewed diagonally downward.
  • the light-shielding member 30 is a member provided to block or reduce external light incident on the eyes of the user wearing the HMD1.
  • the light-shielding member 30 may be made of an elastic resin.
  • the light-shielding member 30 is not limited to the one made of resin, and may be made of, for example, a fibrous material (sponge or the like).
  • the light-shielding member 30 includes a mounting portion 31 attached to the housing 10a of the device main body 10.
  • the mounting portion 31 may be an annular shape that surrounds the right lens 12R and the left lens 12L housed in the housing 10a when viewed from the rear. Further, the mounting portion 31 may be detachably configured with respect to the housing 10a. For example, a plurality of locking projections are formed on the front portion of the mounting portion 31, and the locking projections are fitted into the plurality of grooves formed in the housing 10a so that the light-shielding member 30 can be attached to the housing 10a. On the other hand, it should be possible to attach it.
  • the present invention is not limited to this, and the mounting portion 31 may be formed by being fixed to the housing 10a by two-color molding or insert molding.
  • the light-shielding member 30 includes a light-shielding wall 32 extending rearward from the mounting portion 31.
  • the light-shielding wall 32 extends rearward from the attachment portion 31 so as to come into contact with the periphery of the eye of the user wearing the HMD 1.
  • the light-shielding member 30 exhibits a function of light-shielding or dimming external light incident on the eyes of the user wearing the HMD1.
  • the mounting portion 31 and the light-shielding wall 32 may be integrated.
  • the light-shielding wall 32 includes an upper portion 321, a right portion 322R, and a left portion 322L.
  • the upper portion 321 is a portion that comes into contact with the upper side of the eye of the user wearing the HMD1.
  • the right portion 322R is a portion that comes into contact with the right side of the right eye of the user wearing the HMD1.
  • the left portion 322L is a portion that comes into contact with the left side of the left eye of the user wearing the HMD1.
  • the light-shielding wall 32 includes a right connecting portion 325R connecting the upper portion 321 and the right portion 322R, and a left connecting portion 325L connecting the upper portion 321 and the left portion 322L.
  • the portions corresponding to the upper portion 321, the right portion 322R, the left portion 322L, the right connecting portion 325R, and the left connecting portion 325L are shown by broken lines, respectively.
  • the light-shielding wall 32 is composed of one member, and the boundary of each part is not strictly defined.
  • the light-shielding wall 32 has a bellows that comes into contact with the periphery of the eye of the user wearing the HMD 1 and expands and contracts according to the contact pressure.
  • a bellows is provided over the entire circumference of the light-shielding wall 32. That is, an example is shown in which bellows are provided in each of the upper portion 321, the right portion 322R, the left portion 322L, the right connecting portion 325R, and the left connecting portion 325L.
  • the bellows are formed by alternating mountain and valley sections.
  • a bellows formed by alternately forming four mountain strips M1 to M4 and three valley strips G1 to G3 is shown.
  • the reference numerals of the mountain and valley sections are shown only in FIG.
  • the number of mountain strips and valley strips is not limited to this, and may be larger or smaller than in the illustrated example.
  • notches CR and CL are provided in the innermost mountain strip portion M1 of the bellows of the right portion 322R and the left portion 322L.
  • the cutouts CR and CL are provided in front of the ear of the user wearing the HMD1 and have a predetermined width in the vertical direction. Since the notches CR and CL are provided in this way, even when the user wears the HMD1 while wearing the spectacles, the temple of the spectacles interferes with the right portion 322R and the left portion 322L of the light shielding wall 32. This can prevent the shape of the light-shielding wall 32 from being deformed and a gap between the light-shielding wall 32 and the user's face. Further, by preventing the temple of the spectacles from interfering with the right portion 322R and the left portion 322L of the light-shielding wall 32, the user can wear the HMD1 without discomfort even when the spectacles are worn. Will be.
  • the cutouts CR and CL are provided at least in a portion including the innermost mountain and valley portions of the right portion 322R and the left portion 322L.
  • the cutouts CR and CL may be provided so as to straddle the innermost mountain strip portion M1 and the valley strip portion G1 adjacent to the mountain strip portion M1.
  • the valley portion is the innermost of the bellows of the right portion 322R and the left portion 322L, it is preferable that the notch CR and CL are provided in the innermost valley portion.
  • the width W3 of the bellows of the right connecting portion 325R and the left connecting portion 325L in the top view is changed to the width W1 of the bellows of the upper portion 321 and the right portion 322R and the left portion.
  • the width of the bellows of 322L was made wider than W2. Due to such a configuration, when the user wears the HMD1, the user's head first comes into contact with the right connecting portion 325R and the left connecting portion 325L. As a result, the right connecting portion 325R and the left connecting portion 325L are compressed and deformed.
  • the right connecting portion 325R and the left connecting portion 325L are compressed and deformed, the right portion 322R moves to the left and the left portion 322L moves to the right. That is, the right portion 322R and the left portion 322L move in the directions indicated by the arrows in FIGS. 6 and 7. As a result, the user's head is sandwiched between the right portion 322R and the left portion 322L. Specifically, the right portion 322R contacts the right side of the user's right eye with a predetermined contact pressure, and the left portion 322L contacts the left side of the user's left eye with a predetermined contact pressure.
  • the right portion 322R moves to the left due to the bending of the light shielding wall 32 at the boundary (inflection point) between the right portion 322R and the right connecting portion 325R.
  • the left portion 322L moves to the right due to the bending of the light shielding wall 32 at the boundary (inflection point) between the left portion 322L and the left connecting portion 325L.
  • the right connecting portion 325R connects the upper portion 321 and the right portion 322R so that the right portion 322R is closer to the user's face as the contact pressure with respect to the right connecting portion 325R increases.
  • the left connecting portion 325L connects the upper portion 321 and the left portion 322L so that the left portion 322L is closer to the user's face as the contact pressure with respect to the left connecting portion 325L increases.
  • the right portion 322R and the right connecting portion 325R extend diagonally rearward to the right in the top view.
  • the left portion 322L and the left connecting portion 325L extend diagonally rearward to the left. That is, in the top view, the light-shielding wall 32 has a substantially V-shape. Due to such a shape, the face of the HMD1 user is more likely to come into contact with the light-shielding wall 32 as compared with the configuration in which the right portion 322R, the right connecting portion 325R, the left portion 322L, and the left connecting portion 325L extend straight rearward. .. Therefore, it is possible to suppress the formation of a gap between the user's face and the light-shielding wall 32.
  • the right portion 322R and the left portion 322L move so as to be close to the user's face, whereby the right portion 322R and the right portion 322R and the left portion 322L are moved. It is possible to prevent outside light from entering through the gap between the left portion 322L and the user's face. As a result, it is possible to prevent external light from being incident on the user's eyes.
  • the light-shielding wall 32 includes a bellows that expands and contracts according to the contact pressure, so that the contact pressure applied to the user's face is alleviated. As a result, the discomfort caused by the contact of the light-shielding wall 32 can be suppressed.
  • the light-shielding member 30 includes a nose accommodating portion 35 in which the nose of the user wearing the HMD 1 is accommodated under the light-shielding member 30.
  • the nose accommodating portion 35 has a shape protruding forward, and is provided so as to fit into a recess (not shown) formed in the lower part of the housing 10a with the light-shielding member 30 attached to the housing 10a. good.
  • the light-shielding member 30 since the light-shielding member 30 includes the nose accommodating portion 35, it is possible to suppress the discomfort caused by the nose of the user wearing the HMD 1 interfering with the light-shielding wall 32.
  • the nasal accommodating portion 35 includes a front portion 351F, a right portion 351R, and a left portion 351L, and the lower portion and the rear portion thereof are open.
  • the nose of the user wearing the HMD1 will be arranged in the space R surrounded by the front portion 351F, the right portion 351R, and the left portion 351L.
  • the nose accommodating portion 35 is provided in the first right shading portion 352R provided at the rear end of the right portion 351R so as to cover the rear of the space R, and the first provided in the left portion 351L so as to cover the rear of the space R. Includes the left shading portion 352L.
  • the first right light-shielding portion 352R and the first left light-shielding portion 352L may be in the form of a sheet. In the present embodiment, as shown in FIG. 4 and the like, the first right light-shielding portion 352R and the first left light-shielding portion 352L are separated from each other in the left-right direction, and extend in the vertical direction between them. A slit is formed.
  • the nose of the user wearing the HMD1 will be accommodated in the space R through the slit formed between the first right light-shielding portion 352R and the first left light-shielding portion 352L.
  • the nose accommodating portion 35 includes the first right shading portion 352R and the first left shading portion 352L, so that the gap between the right portion 351R and the left portion 351L of the nose accommodating portion 35 and the user's nose. It is possible to suppress the entry of external light from the nose. As a result, it is possible to prevent external light from being incident on the user's eyes.
  • the nose accommodating portion 35 has a second right light-shielding portion 355R arranged in front of the first right light-shielding portion 352R and a second left light-shielding portion 355L arranged in front of the first left light-shielding portion 352L. And include.
  • the second right light-shielding portion 355R and the second left light-shielding portion 355L may be in the form of a sheet.
  • the second right light-shielding portion 355R and the second left light-shielding portion 355L are arranged so as to divide the space R into two spaces in the front-rear direction. Further, the second right light-shielding portion 355R and the second left light-shielding portion 355L are separated from each other in the left-right direction, and a slit extending in the vertical direction is formed between them.
  • the user's nose is formed between the first right light-shielding portion 352R and the first left light-shielding portion 352L. It will be accommodated in the space R via the slit and the slit formed between the second right light-shielding portion 355R and the second left light-shielding portion 355L. With such a configuration, it is possible to further suppress the entry of external light through the gap between the right portion 351R and the left portion 351L of the nose accommodating portion 35 and the user's nose.
  • the HMD 1 when used by a user with a small head, it is possible to suppress the incident of external light on the user's eyes, and as a result, the immersive feeling can be improved. ..
  • the immersive feeling when used by a user with a large head, it is possible to prevent the user from feeling uncomfortable due to the contact pressure of the light-shielding member 30.
  • the light-shielding member 30 shown in the present embodiment is an example, and the light-shielding wall 32 may include at least a part of a bellows that expands and contracts according to the contact pressure.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
PCT/JP2021/022355 2020-06-17 2021-06-11 遮光部材、ヘッドマウントディスプレイ Ceased WO2021256402A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP21825899.4A EP4171020A4 (en) 2020-06-17 2021-06-11 LIGHT-SHIELDING ELEMENT AND HEAD-MOUNTED DISPLAY
CN202180031001.0A CN115443649A (zh) 2020-06-17 2021-06-11 遮光构件和头戴式显示器
JP2022531774A JP7663574B2 (ja) 2020-06-17 2021-06-11 遮光部材、ヘッドマウントディスプレイ
US18/001,088 US12585116B2 (en) 2020-06-17 2021-06-11 Light-shielding member and head-mounted display

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020-104858 2020-06-17
JP2020104858 2020-06-17

Publications (1)

Publication Number Publication Date
WO2021256402A1 true WO2021256402A1 (ja) 2021-12-23

Family

ID=79268049

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/022355 Ceased WO2021256402A1 (ja) 2020-06-17 2021-06-11 遮光部材、ヘッドマウントディスプレイ

Country Status (5)

Country Link
US (1) US12585116B2 (https=)
EP (1) EP4171020A4 (https=)
JP (1) JP7663574B2 (https=)
CN (1) CN115443649A (https=)
WO (1) WO2021256402A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024178468A1 (en) * 2023-02-28 2024-09-06 ResMed Pty Ltd Positioning, stabilising, and interfacing structures and system incorporating same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115509012B (zh) * 2022-09-28 2025-04-08 许昌学院 一种头戴式虚拟现实设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08140014A (ja) * 1994-11-11 1996-05-31 Nintendo Co Ltd 接顔型画像表示装置
CN104880823A (zh) * 2015-05-07 2015-09-02 青岛歌尔声学科技有限公司 一种头戴显示装置
WO2016136657A1 (ja) 2015-02-27 2016-09-01 株式会社ソニー・インタラクティブエンタテインメント ヘッドマウントディスプレイ

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07301762A (ja) 1994-05-09 1995-11-14 Olympus Optical Co Ltd 頭部装着型映像表示装置
CN104739576A (zh) 2013-12-25 2015-07-01 天津金阳科技有限公司 一种眼罩
CN203773162U (zh) 2014-04-14 2014-08-13 黃通兵 一种可平行折叠的头戴立体成像装置
SE538390C2 (en) * 2014-11-27 2016-06-07 Mobile Vr Sweden Ab Device for viewing stereoscopic 3D images
CN105607261B (zh) 2016-03-11 2018-01-23 北京小鸟看看科技有限公司 一种虚拟现实头盔的遮光透气结构
JP6881896B2 (ja) * 2016-04-20 2021-06-02 キヤノン株式会社 頭部装着装置および把持装置
CN206039055U (zh) * 2016-09-30 2017-03-22 潍坊歌尔电子有限公司 头戴式电子产品眼罩及头戴式电子产品
CN108459413B (zh) * 2017-02-22 2021-10-08 宏达国际电子股份有限公司 头戴式显示装置
CN208384229U (zh) 2017-09-11 2019-01-15 深圳多哚新技术有限责任公司 一种虚拟现实设备的脸托配件
WO2019054621A1 (ko) 2017-09-18 2019-03-21 주식회사 룩시드랩스 헤드 마운트 디스플레이 장치

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08140014A (ja) * 1994-11-11 1996-05-31 Nintendo Co Ltd 接顔型画像表示装置
WO2016136657A1 (ja) 2015-02-27 2016-09-01 株式会社ソニー・インタラクティブエンタテインメント ヘッドマウントディスプレイ
CN104880823A (zh) * 2015-05-07 2015-09-02 青岛歌尔声学科技有限公司 一种头戴显示装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4171020A4

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024178468A1 (en) * 2023-02-28 2024-09-06 ResMed Pty Ltd Positioning, stabilising, and interfacing structures and system incorporating same

Also Published As

Publication number Publication date
JP7663574B2 (ja) 2025-04-16
CN115443649A (zh) 2022-12-06
EP4171020A1 (en) 2023-04-26
EP4171020A4 (en) 2024-07-17
US12585116B2 (en) 2026-03-24
JPWO2021256402A1 (https=) 2021-12-23
US20230213768A1 (en) 2023-07-06

Similar Documents

Publication Publication Date Title
CN110955048B (zh) 头部佩戴型显示装置
CN109387944B (zh) 用于头戴式显示器的能移除面部界面
JP6868034B2 (ja) アイウェアケース
JP7488939B2 (ja) ヘッドマウントディスプレイ、減光部材
WO2018221387A1 (ja) ヘッドマウントディスプレイ
WO2021256402A1 (ja) 遮光部材、ヘッドマウントディスプレイ
JP2021157165A (ja) ヘッドマウントディスプレイ装置用眼鏡フレーム
US10911864B2 (en) Head-mounted display apparatus and acoustic device
CN113448094B (zh) 头部佩戴型显示装置
KR20190043615A (ko) 헤드 마운트 디스플레이
JP2015108798A (ja) 二重装着式の保護メガネ
JP7734059B2 (ja) 遮光部材、ヘッドマウントディスプレイ
CN120195885A (zh) 智能眼镜
JPWO2021256402A5 (https=)
JP7789772B2 (ja) ヘッドパッド、ヘッドマウントディスプレイ
KR20160003517U (ko) 착용감이 개선된 헤드 마운트 디스플레이 장치
US10670869B2 (en) Head-mounted display apparatus
JP2009000193A (ja) 水中メガネ
US20240224440A1 (en) Front pad and head-mounted display
KR101864084B1 (ko) 헤드마운트 디스플레이 장치
JP7014471B2 (ja) 透過型表示装置の取付方法
WO2020003756A1 (ja) 頭部装着型ディスプレイ
JP6860170B2 (ja) 透過型表示装置、マスク、及び、透過型表示装置の取付方法
JPWO2018138777A1 (ja) 画像表示装置
JP3188924U (ja) 二重装着式の保護メガネ

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21825899

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2022531774

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2021825899

Country of ref document: EP

Effective date: 20230117

WWG Wipo information: grant in national office

Ref document number: 18001088

Country of ref document: US