公开(公告)号：US20220057640A1

公开(公告)日：2022-02-24

申请号：US17310215

申请日：2020-03-18

申请人： Naoki NAKAMURA ,  Shiori OHSUGI ,  Shigenobu HIRANO ,  Yasuo KATANO ,  Kenji KAMEYAMA ,  Norikazu IGARASHI ,  Aino HASEGAWA ,  Satomi TANAKA ,  Masahiro ITOH ,  Yoshifumi SUDOH ,  Susumu MOMMA ,  Shun OKAZAKI

发明人： Naoki NAKAMURA ,  Shiori OHSUGI ,  Shigenobu HIRANO ,  Yasuo KATANO ,  Kenji KAMEYAMA ,  Norikazu IGARASHI ,  Aino HASEGAWA ,  Satomi TANAKA ,  Masahiro ITOH ,  Yoshifumi SUDOH ,  Susumu MOMMA ,  Shun OKAZAKI

IPC分类号： G02B27/09 ,  G02B27/30

摘要： A virtual image display device includes: an image display element that displays an image to be displayed as a virtual image; a propagation optical system that propagates light from the image display element; and a light guide member that guides the light propagated by the propagation optical system. The light guide member includes: a light beam incident part that introduces light including image information from the propagation optical system into the light guide member; an image extractor that extracts the light including image information from an inside of the light guide member; and an image emitter that emits the light including image information to an outside of the light guide member. The propagation optical system includes one or more optical members each having a curved surface shape that is non-rotationally symmetric with respect to an optical axis.

公开(公告)号：US20220252838A1

公开(公告)日：2022-08-11

申请号：US17588354

申请日：2022-01-31

申请人： Yoshifumi SUDOH ,  Yasuo KATANO ,  Shigenobu HIRANO ,  Masahiro ITOH ,  Naoki NAKAMURA ,  Susumu MOMMA ,  Shun OKAZAKI ,  Masamichi YAMADA ,  Kenji KAMEYAMA ,  Norikazu IGARASHI ,  Aino HASEGAWA ,  Takashi MAKI

发明人： Yoshifumi SUDOH ,  Yasuo KATANO ,  Shigenobu HIRANO ,  Masahiro ITOH ,  Naoki NAKAMURA ,  Susumu MOMMA ,  Shun OKAZAKI ,  Masamichi YAMADA ,  Kenji KAMEYAMA ,  Norikazu IGARASHI ,  Aino HASEGAWA ,  Takashi MAKI

IPC分类号： G02B13/00 ,  H04N5/225 ,  G02B7/02 ,  G02B3/00

摘要： A lens unit includes: a lens group including: an object-side lens closest to an object side in the lens group; an image-side lens closest to an image side in the lens group; and an intermediate lens between the object-side lens and the image-side lens, the object-side lens, the image-side lens, and the intermediate lens being arranged along an optical axis; a first holder holding an edge surface of the object-side lens and an edge surface of the intermediate lens; and a second holder separate from the first holder, the second holder holding the edge surface of the intermediate lens and an edge surface of the image-side lens.

公开(公告)号：US20220026716A1

公开(公告)日：2022-01-27

申请号：US17378812

申请日：2021-07-19

申请人： Yoshifumi SUDOH ,  Naoki NAKAMURA ,  Masahiro ITOH ,  Susumu MOMMA ,  Shun OKAZAKI ,  Shigenobu HIRANO ,  Yasuo KATANO ,  Kenji KAMEYAMA ,  Norikazu IGARASHI ,  Aino HASEGAWA ,  Takashi MAKI ,  Masamichi YAMADA ,  Takemasa TSUTSUI

发明人： Yoshifumi SUDOH ,  Naoki NAKAMURA ,  Masahiro ITOH ,  Susumu MOMMA ,  Shun OKAZAKI ,  Shigenobu HIRANO ,  Yasuo KATANO ,  Kenji KAMEYAMA ,  Norikazu IGARASHI ,  Aino HASEGAWA ,  Takashi MAKI ,  Masamichi YAMADA ,  Takemasa TSUTSUI

IPC分类号： G02B27/01 ,  F21V8/00 ,  G02B3/06 ,  G02B9/14 ,  G02B9/10

摘要： A propagation optical system includes: a first optical system; an intermediate optical element; and a second optical system. The first optical system, the intermediate optical element, and the second optical system being sequentially arranged in a direction from the image display element toward the light guide member along an optical axis. The intermediate optical element has a non-rotationally symmetric curved surface, of which shape is non-rotationally symmetric about the optical axis. A cross-sectional shape, of the non-rotationally symmetric curved surface, in a first plane including the optical axis is non-arc shape. The first plane is a plane in which the non-rotationally symmetric surface has a strongest positive power among planes including the optical axis. The propagation optical system is configured to form, between the first optical system and the second optical system, an intermediate image corresponding to an image displayed on the image display element.

公开(公告)号：US20210165221A1

公开(公告)日：2021-06-03

申请号：US16950365

申请日：2020-11-17

申请人： Aino HASEGAWA ,  Shigenobu HIRANO ,  Yasuo KATANO ,  Kenji KAMEYAMA ,  Norikazu IGARASHI ,  Naoki NAKAMURA ,  Yoshifumi SUDOH ,  Masahiro ITOH ,  Shun OKAZAKI ,  Susumu MOMMA

发明人： Aino HASEGAWA ,  Shigenobu HIRANO ,  Yasuo KATANO ,  Kenji KAMEYAMA ,  Norikazu IGARASHI ,  Naoki NAKAMURA ,  Yoshifumi SUDOH ,  Masahiro ITOH ,  Shun OKAZAKI ,  Susumu MOMMA

IPC分类号： G02B27/01 ,  G02B6/42 ,  G02B27/64

摘要： A head-mounted display device includes a display element to display an image; a light guide member to emit the image displayed on the display element to an eye of a wearer; a housing including an optical system to guide image light of the image displayed on the display element to the light guide member; and an adjustment member provided on a side of the light guide member opposite to the optical system, and to bend the housing on a side opposite to a face of the wearer.

公开(公告)号：US20230280592A1

公开(公告)日：2023-09-07

申请号：US18008183

申请日：2021-06-09

申请人： Naoki NAKAMURA ,  Masahiro ITOH ,  Susumu MOMMA ,  Shigenobu HIRANO ,  Yoshifumi SUDOH ,  Shun OKAZAKI ,  Yasuo KATANO ,  Kenji KAMEYAMA ,  Norikazu IGARASHI ,  Masamichi YAMADA ,  Aino HASEGAWA ,  Takashi MAKI

发明人： Naoki NAKAMURA ,  Masahiro ITOH ,  Susumu MOMMA ,  Shigenobu HIRANO ,  Yoshifumi SUDOH ,  Shun OKAZAKI ,  Yasuo KATANO ,  Kenji KAMEYAMA ,  Norikazu IGARASHI ,  Masamichi YAMADA ,  Aino HASEGAWA ,  Takashi MAKI

IPC分类号： G02B27/01 ,  F21V8/00

CPC分类号： G02B27/0172 ,  G02B6/0018 ,  G02B2027/0123 ,  G02B2027/0118

摘要： A light guide member (300) includes a boundary surface (304) configured to reflect image light guided to the boundary surface (304) and emit the image light outside the light guide member (300), an opposing surface (306) parallel to the boundary surface (304), the opposing surface (306) facing the boundary surface (304), a first inclined surface (305) having an inclination in which a distance between the first inclined surface (305) and the boundary surface (304) decreases in a guiding direction of the image light, and a second inclined surface (307) between the opposing surface (306) and the first inclined surface (305), the second inclined surface (307) inclined at a different angle with the first inclined surface (305) in the guiding direction.

公开(公告)号：US20230003931A1

公开(公告)日：2023-01-05

申请号：US17781715

申请日：2021-01-06

申请人： Naoki NAKAMURA ,  Masahiro ITOH ,  Yoshifumi SUDOH ,  Susumu MOMMA ,  Shun OKAZAKI ,  Shigenobu HIRANO ,  Yasuo KATANO ,  Kenji KAMEYAMA ,  Norikazu IGARASHI ,  Aino HASEGAWA

发明人： Naoki NAKAMURA ,  Masahiro ITOH ,  Yoshifumi SUDOH ,  Susumu MOMMA ,  Shun OKAZAKI ,  Shigenobu HIRANO ,  Yasuo KATANO ,  Kenji KAMEYAMA ,  Norikazu IGARASHI ,  Aino HASEGAWA

IPC分类号： F21V8/00 ,  G02B27/01

摘要： A light guide includes light guiding members including first and second light guiding members, an optical entrance having a plane on which the light is incident, a light guiding unit to guide the light incident on the optical entrance with repeated reflection, a light beam ejection unit to eject the light to an outside of the light guide, and an extraction unit to reflect the light guided by the light guiding unit toward the light beam ejection unit. The light guiding members guide and eject a light, and the second light guiding member is bonded to, at least, the light guiding unit of the first light guiding member.

公开(公告)号：US20230039870A1

公开(公告)日：2023-02-09

申请号：US17876543

申请日：2022-07-29

申请人： Susumu MOMMA ,  Naoki NAKAMURA ,  Masahiro ITOH ,  Yoshifumi SUDOH ,  Shigenobu HIRANO ,  Yasuo KATANO

发明人： Susumu MOMMA ,  Naoki NAKAMURA ,  Masahiro ITOH ,  Yoshifumi SUDOH ,  Shigenobu HIRANO ,  Yasuo KATANO

IPC分类号： G02B6/42 ,  G02B27/01

摘要： A light guide includes: a light guide board configured to allow light incident on an optical entrance to propagate through the light guide board, the light guide board including: the optical entrance; a first face; and at least one partial reflection layer within the light guide board and tilted to the first face. The at least one partial reflection layer is configured to reflect a part of light incident on the at least one partial reflection layer at an incident angle of greater than or equal to a critical angle θr to allow the reflected light to exit the light guide board through the first surface while transmitting therethrough a remainder of the light incident on the at least one partial reflection layer. Formula below is satisfied: θr=sin−1(n2/n1) where θr is the critical angle; n1 is a refractive index of the light guide board; and n2 is a refractive index of the at least one partial reflection layer.

公开(公告)号：US20190004235A1

公开(公告)日：2019-01-03

申请号：US16126397

申请日：2018-09-10

申请人： Shiori OHSUGI ,  Takashi KUBOTA ,  Takanobu OSAKA ,  Naoki NAKAMURA

发明人： Shiori OHSUGI ,  Takashi KUBOTA ,  Takanobu OSAKA ,  Naoki NAKAMURA

IPC分类号： F21V8/00 ,  G02B27/01

摘要： A light guide for a virtual image device to guide and emit image light output from an image display element to display a virtual image. The light guide includes a light-guide member and an optical member. The light-guide member includes an incidence portion to receive the image light and an exit portion to emit the image light to an outside, and a reflective portion inclined relative to the incidence portion to guide the image light received by the incidence portion into the light guide. The light-guide member also includes an extraction portion including first planes each inclined relative to the exit portion and second planes each parallel with the exit portion, to guide the image light from each first plane to the exit portion and extract the image light. The optical member includes a parallel plane and an inclined portion.

公开(公告)号：US20170192239A1

公开(公告)日：2017-07-06

申请号：US15394157

申请日：2016-12-29

申请人： Naoki NAKAMURA ,  Toshiaki TOKITA ,  Shiori OHSUGI ,  Takashi KUBOTA

发明人： Naoki NAKAMURA ,  Toshiaki TOKITA ,  Shiori OHSUGI ,  Takashi KUBOTA

IPC分类号： G02B27/01 ,  F21V8/00

CPC分类号： G02B27/0172 ,  G02B6/0011 ,  G02B6/0036 ,  G02B6/0038 ,  G02B6/0053 ,  G02B2027/0125

摘要： A light guide includes a light-guide member including an incidence portion through which image light emitted from an image display element enters the light-guide member; an exit portionthrough which the image light exits the light-guide member to an outside of the light-guide member; a retroreflection portion to reverse a direction of travel of the image light guided through the light-guide member; and an extraction portion to guide the image light reversed by the retroreflection portion to the exit portion. The retroreflection portion has a plurality of surfaces.

公开(公告)号：US20170090094A1

公开(公告)日：2017-03-30

申请号：US15270678

申请日：2016-09-20

申请人： Shiori OHSUGI ,  Takashi KUBOTA ,  Takanobu OSAKA ,  Naoki NAKAMURA

发明人： Shiori OHSUGI ,  Takashi KUBOTA ,  Takanobu OSAKA ,  Naoki NAKAMURA

IPC分类号： F21V8/00 ,  G02B27/01

CPC分类号： G02B6/0035 ,  G02B6/00 ,  G02B6/003 ,  G02B6/0058 ,  G02B27/0172 ,  G02B2027/0125

摘要： A light guide for a virtual image device to guide and emit image light output from an image display element to display a virtual image. The light guide includes a light-guide member and an optical member. The light-guide member includes an incidence portion to receive the image light and an exit portion to emit the image light to an outside, and a reflective portion inclined relative to the incidence portion to guide the image light received by the incidence portion into the light guide. The light-guide member also includes an extraction portion including first planes each inclined relative to the exit portion and second planes each parallel with the exit portion, to guide the image light from each first plane to the exit portion and extract the image light. The optical member includes a parallel plane and an inclined portion.