公开(公告)号：US09806498B2

公开(公告)日：2017-10-31

申请号：US15143653

申请日：2016-05-02

Applicant: TOKYO INSTITUTE OF TECHNOLOGY ,  FUJI XEROX CO., LTD.

Inventor： Fumio Koyama ,  Hamed Dalir ,  Takashi Kondo ,  Naoki Jogan ,  Kazutaka Takeda ,  Hideo Nakayama

IPC: H01S5/183 ,  H01S5/10 ,  H01S5/343 ,  H01S5/022 ,  H01S5/062

CPC classification number: H01S5/1835 ,  H01S5/02284 ,  H01S5/06226 ,  H01S5/1032 ,  H01S5/18302 ,  H01S5/18313 ,  H01S5/18344 ,  H01S5/18394 ,  H01S5/3432

Abstract: A vertical-cavity surface-emitting laser diode includes: a first resonator that has a plurality of semiconductor layers comprising a first current narrowing structure having a first conductive region and a first non-conductor region; a first electrode that supplies electric power to drive the first resonator; a second resonator that has a plurality of semiconductor layers comprising a second current narrowing structure having a second conductive region and a second non-conductive region and that is formed side by side with the first resonator, the second current narrowing structure being formed in same current narrowing layer as the layer where the first current narrowing structure is formed; and a coupling portion as defined herein; and an equivalent refractive index of the coupling portion is smaller than an equivalent refractive index of each of the first resonator and the second resonator.

公开(公告)号：US09350139B2

公开(公告)日：2016-05-24

申请号：US14452053

申请日：2014-08-05

Applicant: TOKYO INSTITUTE OF TECHNOLOGY ,  FUJI XEROX CO., LTD.

Inventor： Fumio Koyama ,  Hamed Dalir ,  Takashi Kondo ,  Naoki Jogan ,  Kazutaka Takeda ,  Hideo Nakayama

IPC: H01S5/00 ,  H01S5/183 ,  H01S5/022 ,  H01S5/062

CPC classification number: H01S5/1835 ,  H01S5/02284 ,  H01S5/06226 ,  H01S5/1032 ,  H01S5/18302 ,  H01S5/18313 ,  H01S5/18344 ,  H01S5/18394 ,  H01S5/3432

Abstract: A vertical-cavity surface-emitting laser diode includes: a first resonator that has a plurality of semiconductor layers comprising a first current narrowing structure having a first conductive region and a first non-conductor region; a first electrode that supplies electric power to drive the first resonator; a second resonator that has a plurality of semiconductor layers comprising a second current narrowing structure having a second conductive region and a second non-conductive region and that is formed side by side with the first resonator, the second current narrowing structure being formed in same current narrowing layer as the layer where the first current narrowing structure is formed; and a coupling portion as defined herein; and an equivalent refractive index of the coupling portion is smaller than an equivalent refractive index of each of the first resonator and the second resonator.

Abstract translation: 垂直腔表面发射激光二极管包括：具有多个半导体层的第一谐振器，包括具有第一导电区域和第一非导体区域的第一电流变窄结构; 提供电力以驱动第一谐振器的第一电极; 具有多个半导体层的第二谐振器，包括具有第二导电区域和第二非导电区域并与第一谐振器并排形成的第二电流变窄结构，第二电流变窄结构形成为相同的电流 窄层作为形成第一电流变窄结构的层; 和如本文所定义的耦合部分; 并且耦合部分的等效折射率小于第一谐振器和第二谐振器中的每一个的等效折射率。

公开(公告)号：US10349831B2

公开(公告)日：2019-07-16

申请号：US15148201

申请日：2016-05-06

Applicant: FUJI XEROX CO., LTD.

Inventor： Kazuyuki Matsushita ,  Kazutaka Takeda ,  Kohei Yukawa ,  Hideaki Ozawa ,  Taku Kinoshita ,  Hideo Nakayama

IPC: A61B3/14 ,  A61B3/117 ,  A61B5/1455 ,  A61B5/145 ,  A61B3/00

Abstract: An optical measuring instrument 1 is equipped with an optical system 20 to be used for measuring a characteristic of the aqueous humor in the anterior chamber 13 of an eyeball 10 of a measurement subject person and a holding unit 50 which holds the optical system 20 etc. The optical system 20 is equipped with a light emitting system 20A and a photodetecting system 20B. An optical path 28 is set so that light emitted from the light emitting system 20A passes through (traverses) the anterior chamber 13 and is detected by the photodetecting system 20B in a state that the eyeball 10 is turned outward.

公开(公告)号：US09400342B2

公开(公告)日：2016-07-26

申请号：US13870418

申请日：2013-04-25

Applicant: FUJI XEROX CO., LTD.

Inventor： Hiroyuki Hotta ,  Hideo Nakayama

IPC: G01V8/20

CPC classification number: G01V8/20

Abstract: A detection apparatus includes: plural light emitting sections that are disposed in a row and that emit parallel light to a passage region, over which an object passes, in a time-staggered manner; one or more light receiving sections that receive the parallel light reflected by or having transmitted through the object, a number of the light receiving sections being less than a number of the light emitting sections; and a detection section that detects at least one of edges of the object and edges of a portion of the object with a different reflectivity or transmittance in accordance with an intensity distribution of the parallel light received by the light receiving sections.

Abstract translation: 一种检测装置，包括：多个发光部，其配置成一行，并且以对时间交错的方式对物体通过的通过区域发出平行的光; 一个或多个光接收部分，其接收由物体反射或透过物体的平行光，多个光接收部分小于多个发光部分; 以及检测部，其根据由所述受光部所接收的所述平行光的强度分布，以不同的反射率或透射率来检测所述被检体的物体的一部分的边缘和边缘的边缘。

公开(公告)号：US10438993B2

公开(公告)日：2019-10-08

申请号：US15790623

申请日：2017-10-23

Applicant: FUJI XEROX CO., LTD.

Inventor： Junichiro Hayakawa ,  Akemi Murakami ,  Hideo Nakayama ,  Tsutomu Otsuka

IPC: H01L27/15 ,  F21V8/00 ,  G02B6/02 ,  H01L33/10 ,  H01L33/14 ,  G02B6/42

Abstract: A light emitting element array includes plural light emitting elements connected in parallel to each other by a wiring connected to a terminal that supplies a current. Each of the light emitting elements is disposed at a position of a predetermined path length along a path of the current flowing from the terminal through the wiring. The plural light emitting elements include, in a mixed form, one or more first light emitting elements each having a non-shielded light emission aperture and one or more second light emitting elements each having a shielded light emission aperture. At least one of the first light emitting elements is disposed at a position of the longest path length. At least one of the second light emitting elements is disposed at a position of the shortest path length.

公开(公告)号：US09059362B2

公开(公告)日：2015-06-16

申请号：US13841513

申请日：2013-03-15

Applicant: FUJI XEROX CO., LTD.

Inventor： Taku Kinoshita ,  Takashi Kondo ,  Kazutaka Takeda ,  Hideo Nakayama

IPC: H01L29/06 ,  H01L33/14 ,  B41J2/45 ,  G03G15/04 ,  H01L33/00

CPC classification number: H01L33/14 ,  B41J2/45 ,  G03G15/04054 ,  H01L33/0016 ,  H01L33/145

Abstract: A light emitting element includes a semiconductor substrate, and an island structure formed on the semiconductor substrate. The island structure includes a light-emitting-unit thyristor and a current confinement structure. The light-emitting-unit thyristor includes stacked semiconductor layers having a pnpn structure. The current confinement structure includes a high-resistance region and a conductive region, and confines carriers in the conductive region.

Abstract translation: 发光元件包括半导体衬底和形成在半导体衬底上的岛状结构。 岛结构包括发光单元晶闸管和电流限制结构。 发光单元晶闸管包括具有pnpn结构的堆叠半导体层。 电流限制结构包括高电阻区域和导电区域，并且在导电区域中限制载流子。

公开(公告)号：US10177532B2

公开(公告)日：2019-01-08

申请号：US15783009

申请日：2017-10-13

Applicant: FUJI XEROX CO., LTD.

Inventor： Junichiro Hayakawa ,  Akemi Murakami ,  Hideo Nakayama ,  Tsutomu Otsuka

IPC: H01S5/183 ,  H01S5/042 ,  H01S5/42 ,  H01S5/30 ,  H01S5/343 ,  H01S5/068 ,  H01S5/022 ,  H01S5/026 ,  H01S5/028 ,  H01S5/0683

Abstract: A light emitting element array includes plural light emitting elements connected in parallel to each other by a wiring connected to a terminal configured to supply a current. The number of light emitting elements which have the shortest path length among path lengths on the wiring from the terminal to the respective light emitting elements along a path of the current is one.

公开(公告)号：US09851293B2

公开(公告)日：2017-12-26

申请号：US15138646

申请日：2016-04-26

Applicant: FUJI XEROX CO., LTD.

Inventor： Kazutaka Takeda ,  Kazuyuki Matsushita ,  Kohei Yukawa ,  Hideaki Ozawa ,  Taku Kinoshita ,  Hideo Nakayama

IPC: G01N21/21 ,  G01N21/31 ,  G01N33/49

CPC classification number: G01N21/21 ,  G01N21/31 ,  G01N33/492 ,  G01N2021/3129

Abstract: A concentration calculation system calculates a concentration of the optically active substance based on a formula. The formula includes a first function representing wavelength dependence of an optical rotation of a first optically-active substance, and a second function representing wavelength dependence of an optical rotation of a second optically-active substance. In the first function, concentration of the first optically-active substance has an unknown value, and an inherent value for defining a characteristic of optical rotatory dispersion of the first optically-active substance is a known value or an unknown value within a certain limited range. In the second function, an inherent value for defining a characteristic of optical rotatory dispersion of the second optically-active substance is an unknown value. The concentration of the first optically-active substance is calculated based on the formula and optical rotations of measurement target respectively corresponding to a plurality of wavelengths, by using a least-squares method.

公开(公告)号：US09936874B2

公开(公告)日：2018-04-10

申请号：US15475365

申请日：2017-03-31

Applicant: FUJI XEROX CO., LTD.

Inventor： Saori Nishizaki ,  Taku Kinoshita ,  Kazutaka Takeda ,  Hideaki Ozawa ,  Kazuyuki Matsushita ,  Kohei Yukawa ,  Sho Kimura ,  Hideo Nakayama

IPC: G03B29/00 ,  A61B3/16 ,  A61B5/145 ,  A61B5/1455

CPC classification number: A61B3/165 ,  A61B3/117 ,  A61B5/14532 ,  A61B5/1455 ,  A61B5/6821

Abstract: An optical measurement apparatus includes: an emission section that emits light such that the light travels across an anterior chamber of an eyeball of a measurement subject; a light reception section that receives light that is emitted from the emission section and travels across the anterior chamber; and a positioning section that performs positioning of one of the emission section and the light reception section at a position where skin on a periphery of an inner canthus of the eyeball is squeezed into an eye socket accommodating the eyeball.

公开(公告)号：US10484087B2

公开(公告)日：2019-11-19

申请号：US15727098

申请日：2017-10-06

Applicant: FUJI XEROX CO., LTD.

Inventor： Akemi Murakami ,  Junichiro Hayakawa ,  Hideo Nakayama ,  Tsutomu Otsuka

IPC: H04B10/08 ,  H04B10/07 ,  H04B10/50 ,  H04B10/2507 ,  H04B10/80 ,  H04L7/00 ,  H01S5/0625 ,  H04B10/66 ,  H01S5/00 ,  H01S5/42 ,  H01S5/022 ,  H01S5/026 ,  H01S5/028 ,  H01S5/0683 ,  H01S5/183 ,  H01S5/343

Abstract: An optical transmission device includes a first light emitting element, a second light emitting element, and a detection unit. The first light emitting element is configured to emit light. The second light emitting element is configured to emit light. The second light emitting element is connected in parallel with the first light emitting element and is configured to deteriorate earlier than the first light emitting element. The detection unit is configured to detect whether the second light emitting element is deteriorated.