公开(公告)号：US20220099968A1

公开(公告)日：2022-03-31

申请号：US17425345

申请日：2020-02-25

申请人： Yuuki SATOH ,  Kazuhiro FUJITA

发明人： Yuuki SATOH ,  Kazuhiro FUJITA

IPC分类号： G02B27/01 ,  G02B27/00 ,  G03B21/28

摘要： A projector includes an image forming unit configured to emit image light that forms an image and an imaging optical system configured to form an image by reflecting the image light. S magnification power at a point of the imaging optical system where the image light is incident and optical-path length between the image forming unit and the imaging optical system is short is made higher than a magnification power at a point of the imaging optical system where the image light is incident and the optical-path length between the image forming unit and the imaging optical system is long.

公开(公告)号：US20200150433A1

公开(公告)日：2020-05-14

申请号：US16658168

申请日：2019-10-21

申请人： Yuuki SATOH ,  Kazuhiro FUJITA ,  Maiko YASUI

发明人： Yuuki SATOH ,  Kazuhiro FUJITA ,  Maiko YASUI

IPC分类号： G02B27/01 ,  G02B26/08 ,  G02B26/10 ,  G02B5/10

摘要： A display device, a display system, and a mobile object. The display device includes an image forming unit through which image light exits, an imaging optical system having a reflection plane and configured to form an image by reflecting the image light on the reflection plane, and a housing accommodating the image forming unit and the imaging optical system. The housing has a transmissive area through which the image light reflected by the imaging optical system passes through, and an inclination of the reflection plane is changed to reduce a project area of the reflection plane. The project area is projected to outside of the housing through the transmissive area. The display system includes the display device, and a reflector configured to reflect the image light reflected by the imaging optical system. The mobile object includes the display system, and the reflector is a front windshield.

公开(公告)号：US20220410608A1

公开(公告)日：2022-12-29

申请号：US17777621

申请日：2020-12-11

申请人： Rie HIRAYAMA ,  Shigeaki IMAI ,  Hiroto TACHIBANA ,  Nobuyuki ARAI ,  Yoichi ICHIKAWA ,  Hirotoshi NAKAYAMA ,  Shohta KOBASHIGAWA ,  Asato TAMURA ,  Takuei NISHIO ,  Kazuhiro FUJITA ,  Muneaki IWATA

发明人： Rie HIRAYAMA ,  Shigeaki IMAI ,  Hiroto TACHIBANA ,  Nobuyuki ARAI ,  Yoichi ICHIKAWA ,  Hirotoshi NAKAYAMA ,  Shohta KOBASHIGAWA ,  Asato TAMURA ,  Takuei NISHIO ,  Kazuhiro FUJITA ,  Muneaki IWATA

IPC分类号： B41M5/26 ,  B29C49/24 ,  B41M5/24 ,  B65D1/02

摘要： A substrate having a first pattern formed on a surface or in an inside of the substrate, or on the surface and in the inside of the substrate, wherein the first pattern is constituted by an aggregate of second patterns.

公开(公告)号：US20220299852A1

公开(公告)日：2022-09-22

申请号：US17692208

申请日：2022-03-11

申请人： Kasumi NAKAMURA ,  Yohei TAKANO ,  Kazuhiro FUJITA ,  Takashi SASAKI ,  Shigeaki IMAI ,  Makoto HIRAKAWA

发明人： Kasumi NAKAMURA ,  Yohei TAKANO ,  Kazuhiro FUJITA ,  Takashi SASAKI ,  Shigeaki IMAI ,  Makoto HIRAKAWA

IPC分类号： G03B21/20 ,  G02B26/00

摘要： A light source device includes: a first light source to emit first color light; a second light source to emit second color light; a wavelength conversion unit to convert at least a portion of the first color light into a third color light; a light incident element to which the first color light, the second color light, and the third color light enter; a first filter to reflect the first color light toward the wavelength conversion unit; and a second filter to reflect the second color tight toward the light incident element. The first filter and the second filter are separately disposed on an optical path of the third color light between the wavelength conversion unit and the light incident element.

公开(公告)号：US20220118553A1

公开(公告)日：2022-04-21

申请号：US17500968

申请日：2021-10-14

申请人： Hideji MIYANISHI ,  Rie HIRAYAMA ,  Kazuhiro FUJITA

发明人： Hideji MIYANISHI ,  Rie HIRAYAMA ,  Kazuhiro FUJITA

IPC分类号： B23K26/359 ,  B23K26/08

摘要： A pattern formation apparatus is configured to irradiate each of a plurality of base materials being conveyed, with laser such that one of a light path length and a beam size at a position of the plurality of base materials is approximately constant, to form a pattern on a surface of each of the plurality of base materials.

公开(公告)号：US20220066177A1

公开(公告)日：2022-03-03

申请号：US17462109

申请日：2021-08-31

申请人： Yohei TAKANO ,  Shigeaki IMAI ,  Kazuhiro FUJITA ,  Makoto HIRAKAWA

发明人： Yohei TAKANO ,  Shigeaki IMAI ,  Kazuhiro FUJITA ,  Makoto HIRAKAWA

IPC分类号： G02B13/16 ,  G02B5/00 ,  G02B7/02 ,  G02B13/22 ,  G02B26/08 ,  G03B21/00

摘要： An image projection apparatus includes: a light source; an image display element including multiple micromirrors arranged in two dimensions, the multiple micromirrors forming an image display plane, each micromirror having a reflecting surface; and a projection optical system. Conditional expressions (1) and (2) below are satisfied: θ1≥14 (deg)  (1) 1.2

公开(公告)号：US20210136336A1

公开(公告)日：2021-05-06

申请号：US17085193

申请日：2020-10-30

申请人： Yohei TAKANO ,  Kazuhiro FUJITA ,  Kasumi NAKAMURA

发明人： Yohei TAKANO ,  Kazuhiro FUJITA ,  Kasumi NAKAMURA

IPC分类号： H04N9/31 ,  G03B21/20

摘要： A light-source device includes an excitation light source, an optical member, and a wavelength converter. The excitation light source is configured to emit first color light. The optical member has a reflecting surface configured to reflect the first color light emitted from the excitation light source. The wavelength converter includes a wavelength conversion member on which the first color light reflected by the optical member is incident. The wavelength conversion member is configured to convert at least part of the first color light into second color light having a wavelength different from a wavelength of the first color light and emit the second color light. A center of the first color light on the reflecting surface of the optical member does not intersect with a light flux of the first color light emitted from the wavelength converter.

公开(公告)号：US20200183157A1

公开(公告)日：2020-06-11

申请号：US16316288

申请日：2017-03-10

申请人： Yuuki SUZUKI ,  Kenichiroh SAISHO ,  Masato KUSANAGI ,  Takuro YASUDA ,  Kazuhiro FUJITA ,  Keita KATAGIRI ,  Hiroshi YAMAGUCHI

发明人： Yuuki SUZUKI ,  Kenichiroh SAISHO ,  Masato KUSANAGI ,  Takuro YASUDA ,  Kazuhiro FUJITA ,  Keita KATAGIRI ,  Hiroshi YAMAGUCHI

IPC分类号： G02B27/01 ,  B60R11/02 ,  B60K35/00

摘要： An HUD apparatus is configured to irradiate light for forming an image on a transmissive reflector provided in a movable body, and to display a virtual image in a display area to overlap the virtual image with scenery outside the movable body. A given distance range in the scenery from a reference point that is set in the movable body is included in the display area, and a difference between a first convergence angle to a target object (e.g., road surface) that is present in the given distance range and a second convergence angle to the virtual image displayed in the display area is at most one degree.

公开(公告)号：US20180024425A1

公开(公告)日：2018-01-25

申请号：US15547901

申请日：2016-02-09

申请人： Kazuhiro FUJITA ,  Takahiro KADO

发明人： Kazuhiro FUJITA ,  Takahiro KADO

IPC分类号： G03B21/20 ,  G03B21/16

摘要： This invention is concerning an illumination device that can obtain illumination light efficiently. An illumination device 1 used in, for example, a projection display apparatus includes a light source and a light tunnel 14. The light tunnel 14 includes a light incident port 15, a light emission port 16, a light guide path 17, a reflection surface 20 surrounding the light guide path 17, a phosphor layer 19 that generates fluorescent light LF having a different wavelength range from that of excitation light LE when being excited by the excitation light LE, a condensing optical system 13 that diverges the excitation light LE in the vicinity of the light incident port 15 and guides the diverged light into the light tunnel 14 to irradiate the phosphor layer 19, and a wavelength selection element that reflects the fluorescent light LF toward the light emission port 16.

公开(公告)号：US20150042963A1

公开(公告)日：2015-02-12

申请号：US14444124

申请日：2014-07-28

申请人： Takehiro NISHIMORI ,  Kazuhiro FUJITA ,  Toshiharu MURAI ,  Tatsuya TAKAHASHI

发明人： Takehiro NISHIMORI ,  Kazuhiro FUJITA ,  Toshiharu MURAI ,  Tatsuya TAKAHASHI

IPC分类号： G03B21/16 ,  F21V29/02 ,  F21V29/00 ,  F21K99/00

CPC分类号： G03B21/16 ,  G03B21/204 ,  H04N9/3111 ,  H04N9/3144

摘要： A light source device includes: a first light emitting unit including a light emitting element that emits light having a predetermined wavelength range; a second light emitting unit including a wavelength conversion member that receives the light from the light emitting element and emits light having a different wavelength range different than the predetermined wavelength range; an optical unit configured to define a path of the light emitted from the light emitting element and a path of the light emitted from the wavelength conversion member; an air blowing unit configured to generate a cooling air; and a passage forming member configured to form a passage through which the cooling air flows, the passage being in contact with both of the first light emitting unit and the second light emitting unit.

摘要翻译： 光源装置包括：第一发光单元，包括发射具有预定波长范围的光的发光元件; 第二发光单元，其包括波长转换构件，其接收来自所述发光元件的光并发射具有不同于所述预定波长范围的不同波长范围的光; 光学单元，被配置为限定从所述发光元件发射的光的路径和从所述波长转换构件发射的光的路径; 构造成产生冷却空气的送风单元; 以及通道形成构件，其构造成形成冷却空气流过的通道，所述通道与所述第一发光单元和所述第二发光单元两者接触。