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：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：US20150078767A1

公开(公告)日：2015-03-19

申请号：US14477168

申请日：2014-09-04

申请人： Susumu MOMMA ,  Koji Masuda ,  Hidemasa Suzuki

发明人： Susumu MOMMA ,  Koji Masuda ,  Hidemasa Suzuki

IPC分类号： G03G15/20

CPC分类号： G03G15/2032 ,  G03G21/1685

摘要： A fixing device that fixes a toner image carried on a transfer sheet onto the transfer sheet includes a fixing belt that relatively moves, with its surface being in contact with the toner image during the fixing operation, with respect to the transfer sheet, surface information detecting devices that determine surface information of the fixing belt, a surface condition changing roller that is arranged so as to be capable of coming into contact with and separating from the fixing belt and abrades the surface of the fixing belt in contact with the fixing belt, and a surface condition changing controller that controls the contact and separation of the surface condition changing roller with and from the fixing belt based on detection results obtained by the surface information detecting devices.

摘要翻译： 将承载在转印片上的调色剂图像固定在转印纸上的定影装置包括相对于转印纸张相对移动的定影带，其表面与定影操作期间的调色剂图像接触，表面信息检测 确定定影带的表面信息的装置，布置成能够与定影带接触并与定影带分离并磨损与定影带接触的定影带的表面的表面状态改变辊，以及 表面状态变更控制部，根据表面信息检测装置得到的检测结果，控制表面状态变更辊与定影带的接触分离。

公开(公告)号：US20150063844A1

公开(公告)日：2015-03-05

申请号：US14473385

申请日：2014-08-29

申请人： Koji MASUDA ,  Susumu MOMMA ,  Hidemasa SUZUKI

发明人： Koji MASUDA ,  Susumu MOMMA ,  Hidemasa SUZUKI

IPC分类号： G03G15/20

CPC分类号： G03G15/2017 ,  G03G2215/2032

摘要： An image forming apparatus includes a fixing member, at least one reflective optical sensor, a heat shielding member, and a processor. The fixing member fixes an image on a recording medium moving in a first axis direction. At least one reflective optical sensor emits light toward the fixing member and receives light reflected by the fixing member. The heat shielding member is arranged between the fixing member and the at least one reflective optical sensor, has a light passing part through which light directed to the fixing member from the at least one reflective optical sensor and light reflected by the fixing member and directed to the at least one reflective optical sensor passes, and prevents heat transfer from the fixing member to the at least one reflective optical sensor. The processor is configured to obtain a surface state of the fixing member on the basis of an output signal from the at least one reflective optical sensor.

摘要翻译： 图像形成装置包括固定构件，至少一个反射光学传感器，隔热构件和处理器。 固定构件将图像固定在沿第一轴线方向移动的记录介质上。 至少一个反射光学传感器朝向固定构件发射光并接收由固定构件反射的光。 隔热构件设置在固定构件和至少一个反射光学传感器之间，具有光通过部分，从至少一个反射光学传感器引导到定影构件的光以及由固定构件反射的光被引导到 所述至少一个反射光学传感器通过并防止从所述固定构件到所述至少一个反射光学传感器的热传递。 处理器被配置为基于来自至少一个反射光学传感器的输出信号获得固定构件的表面状态。

公开(公告)号：US20150331374A1

公开(公告)日：2015-11-19

申请号：US14812625

申请日：2015-07-29

申请人： Koji MASUDA ,  Hidemasa SUZUKI ,  Susumu MOMMA

发明人： Koji MASUDA ,  Hidemasa SUZUKI ,  Susumu MOMMA

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G15/2053 ,  G03G15/55

摘要： An image forming apparatus includes a charging device configured to uniformly charge a surface of a photoconductive element; an image writing device configured to write an image in the charged photoconductive element by light to form an electrostatic latent image; a developing device configured to visualize the formed electrostatic latent image as a toner image; a transfer device configured to transfer the toner image to a sheet recording medium; a fixing device configured to fix the transferred toner image onto the medium; and a surface information detecting device configured to detect surface information of a fixing member of the fixing device. The surface information detecting device radiates optical spots on a surface of the fixing member in a direction crossing a conveying direction, receives reflected light of each optical spot, and detects the surface information of the fixing device based on the detection results of the reflective lights.

摘要翻译： 图像形成装置包括：充电装置，其被配置为对光电导元件的表面均匀充电; 图像写入装置，被配置为通过光在所述带电光电元件中写入图像以形成静电潜像; 配置成将所形成的静电潜像可视化为调色剂图像的显影装置; 配置成将调色剂图像转印到片材记录介质上的传送装置; 定影装置，被配置为将转印的调色剂图像固定到介质上; 以及表面信息检测装置，被配置为检测所述定影装置的固定构件的表面信息。 表面信息检测装置在与输送方向交叉的方向上照射固定部件的表面上的光点，接收每个光点的反射光，并根据反射光的检测结果来检测定影装置的表面信息。