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：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：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：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：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：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：US20240201501A1

公开(公告)日：2024-06-20

申请号：US18540914

申请日：2023-12-15

申请人： Aino HASEGAWA ,  Shigenobu HIRANO ,  Yasuo KATANO ,  Masahiro ITOH ,  Takashi MAKI ,  Yoshifumi SUDOH

发明人： Aino HASEGAWA ,  Shigenobu HIRANO ,  Yasuo KATANO ,  Masahiro ITOH ,  Takashi MAKI ,  Yoshifumi SUDOH

IPC分类号： G02B27/01

CPC分类号： G02B27/0172 ,  G02B2027/0178

摘要： A head-mounted display includes a light source to emit image light; and an optical component disposed opposite to a head, the optical component has multiple reflective surfaces arrayed in a first direction to reflect the image light to an eye in the head. At least two of the multiple reflective surfaces are disposed in a second direction tilted with respective to the first direction.

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：US20200252513A1

公开(公告)日：2020-08-06

申请号：US16776521

申请日：2020-01-30

申请人： Yuuki NAKADA ,  Hajime TSUKAHARA ,  Hiroki SHIRADO ,  Ayumu HASHIMOTO ,  Tomohiko ONO ,  Tatsuya OZAKI ,  Hiroshi KUBO ,  Yoshiaki NAGAO ,  Kimiharu YANAGISAWA ,  Masahiro ITOH

发明人： Yuuki NAKADA ,  Hajime TSUKAHARA ,  Hiroki SHIRADO ,  Ayumu HASHIMOTO ,  Tomohiko ONO ,  Tatsuya OZAKI ,  Hiroshi KUBO ,  Yoshiaki NAGAO ,  Kimiharu YANAGISAWA ,  Masahiro ITOH

IPC分类号： H04N1/00

摘要： An inclination detecting device includes processing circuitry. The processing circuitry is configured to detect, in image information that is an image of an object imaged by an imaging device at an imaging position where a background member forms a background, a first boundary between the background member and a shadow of the object at detection positions in at least one of main-scanning and sub-scanning directions on an outline of the object; detect a second boundary between the object and the shadow of the object at detection positions in at least one of the main-scanning and sub-scanning directions on the outline of the object in the image information; detect a boundary group including detection results of the second boundary at the detection positions; and detect an inclination of the object in the image information from detection results of the first boundary, the second boundary, and the boundary group.

公开(公告)号：US20160370460A1

公开(公告)日：2016-12-22

申请号：US15180560

申请日：2016-06-13

申请人： Shu TAKAHASHI ,  Koji MASUDA ,  Masahiro ITOH ,  Yasuhiro NIHEI ,  Takeshi UEDA ,  Takeshi OGAWA ,  Hiroaki TANAKA ,  Shiori OHSUGI

发明人： Shu TAKAHASHI ,  Koji MASUDA ,  Masahiro ITOH ,  Yasuhiro NIHEI ,  Takeshi UEDA ,  Takeshi OGAWA ,  Hiroaki TANAKA ,  Shiori OHSUGI

IPC分类号： G01S7/483 ,  G01S17/88

CPC分类号： G01S7/483 ,  G01S17/10 ,  G01S17/88 ,  G01S17/89 ,  G01S17/936

摘要： A sensor includes a light source to emit a pulse light, a light receiver to receive light, emitted from the light source and reflected from an object, a range information acquisition unit to calculate information of a range to the object based on light emission timing at the light source and light reception timing at the light receiver and a speed of the pulse light emitted from the light source, and a pulse controller to control a pulse pattern of the pulse light emitted from the light source based on the range information calculated by the range information acquisition unit.

摘要翻译： 传感器包括发射脉冲光的光源，从光源发射并从物体反射的光接收器的光接收器，范围信息获取单元，基于来自物体的发光定时计算对象的范围的信息 在光接收器处的光源和光接收定时以及从光源发射的脉冲光的速度，以及脉冲控制器，用于基于由光源计算的范围信息来控制从光源发射的脉冲光的脉冲图案 范围信息采集单元。