公开(公告)号：US10209133B2

公开(公告)日：2019-02-19

申请号：US15454223

申请日：2017-03-09

申请人： Kohji Sakai ,  Kazuhiro Akatsu

发明人： Kohji Sakai ,  Kazuhiro Akatsu

IPC分类号： G01N21/00 ,  G01J3/50 ,  G01J3/02 ,  G01J3/10 ,  H01S5/068 ,  H04N9/31 ,  G01J3/46 ,  H01S5/00 ,  H01S5/06 ,  H01S5/0683 ,  H01S5/40 ,  H05B33/08

摘要： A wavelength estimation device including a light detector to receive light emitted from a light source and an estimation unit. The estimation unit estimates a wavelength of the light based on an amount of light received by the light detector.

公开(公告)号：US09925798B2

公开(公告)日：2018-03-27

申请号：US15440907

申请日：2017-02-23

申请人： Naoto Watanabe ,  Toshiaki Tokita ,  Kohji Sakai ,  Nobuaki Kubo ,  Masayuki Muranaka

发明人： Naoto Watanabe ,  Toshiaki Tokita ,  Kohji Sakai ,  Nobuaki Kubo ,  Masayuki Muranaka

IPC分类号： B41J2/47 ,  G02B26/12 ,  G03G15/043 ,  G03G15/00

CPC分类号： B41J2/473 ,  B41J2/471 ,  G02B26/123 ,  G02B26/127 ,  G02B26/129 ,  G03G15/043 ,  G03G15/505

摘要： An optical scanning apparatus includes a light source, an optical deflector having a rotary polygon mirror to deflect a light beam from the light source, a scanning optical system configured to focus the light beam deflected by the optical deflector on a target surface, a sync detecting sensor configured to determine a write start timing on the target surface, and a processing unit configured to correct detection data of the sync detecting sensor based on a measured value of a time needed for one revolution of the rotary polygon mirror.

公开(公告)号：US20170082747A1

公开(公告)日：2017-03-23

申请号：US15371650

申请日：2016-12-07

申请人： KAZUHIRO AKATSU ,  Tadashi Nakamura ,  Kohji Sakai

发明人： KAZUHIRO AKATSU ,  Tadashi Nakamura ,  Kohji Sakai

IPC分类号： G01S17/42 ,  G01S7/484 ,  G01S7/51 ,  G01S17/93

CPC分类号： G01S17/42 ,  G01S7/4815 ,  G01S7/484 ,  G01S7/4868 ,  G01S7/51 ,  G01S17/936 ,  H05B37/0227

摘要： An object detector includes a projector including a light source having a two-dimensionally arranged plurality of light emitter groups, ach of the light emitter groups having a plurality of light emitters, a light receiver which receives light emitted from the projector, and reflected by an object, and a light source driver which lights on and lights off each of the light emitter groups of the light source.

公开(公告)号：US09557563B2

公开(公告)日：2017-01-31

申请号：US14722559

申请日：2015-05-27

申请人： Mitsuo Suzuki ,  Kohji Sakai

发明人： Mitsuo Suzuki ,  Kohji Sakai

IPC分类号： B41J2/45 ,  B41J2/47 ,  G02B26/12 ,  G03G15/04 ,  G03G15/043

CPC分类号： G02B26/127 ,  B41J2/45 ,  B41J2/473 ,  B41J2002/453 ,  G02B26/12 ,  G02B26/123 ,  G03G15/04072 ,  G03G15/0435

摘要： An optical scanning device includes: a light source that emits a laser beam modulated and driven according to an image forming signal; a scanning optical system that includes a polygon mirror to scan a surface of a photoconductor with the laser beam from the light source; a surface identifying unit that associates a sub-scanning position by the polygon mirror with each surface of the polygon mirror; and a light-amount adjusting unit that adjusts a light amount of the light source according to the sub-scanning position, for each surface of the polygon mirror.

摘要翻译： 光学扫描装置包括：光源，发射根据图像形成信号调制和驱动的激光束; 扫描光学系统，其包括用来自光源的激光束扫描光电导体的表面的多面镜; 表面识别单元，其将多面镜的副扫描位置与多面镜的每个表面相关联; 以及光量调节单元，用于对所述多面镜的每个表面调整根据所述副扫描位置的所述光源的光量。

公开(公告)号：US20150160341A1

公开(公告)日：2015-06-11

申请号：US14554498

申请日：2014-11-26

申请人： Kazuhiro AKATSU ,  Tadashi Nakamura ,  Kohji Sakai

发明人： Kazuhiro AKATSU ,  Tadashi Nakamura ,  Kohji Sakai

IPC分类号： G01S17/42 ,  H05B37/02 ,  G01B11/24

CPC分类号： G01S17/42 ,  G01S7/4815 ,  G01S7/484 ,  G01S7/4868 ,  G01S7/51 ,  G01S17/936 ,  H05B37/0227

摘要： An object detector includes a projector including a light source having a two-dimensionally arranged plurality of light emitter groups, each of the light emitter groups having a plurality of light emitters, a light receiver which receives light emitted from the projector, and reflected by an object, and a light source driver which lights on and lights off each of the light emitter groups of the light source.

摘要翻译： 一种物体检测器包括：投影仪，包括具有二维布置的多个发光体组的光源，每个发光体组具有多个发光体;受光器，接收从投影仪发出的光，并由 物体和光源驱动器，其点亮并点亮光源的每个发光体组。

公开(公告)号：US20130250029A1

公开(公告)日：2013-09-26

申请号：US13783898

申请日：2013-03-04

申请人： Nobuaki KUBO ,  Toshiaki Tokita ,  Kohji Sakai ,  Naoto Watanabe ,  Tomohiro Nakajima ,  Yorichika Ishiyama

发明人： Nobuaki KUBO ,  Toshiaki Tokita ,  Kohji Sakai ,  Naoto Watanabe ,  Tomohiro Nakajima ,  Yorichika Ishiyama

IPC分类号： B41J2/435

CPC分类号： G03G15/04036 ,  G03G15/0435 ,  G03G21/1666

摘要： An exposure device to expose an exposure element includes a light source; an optical system to guide light emitted from the light source to the exposure element; and an optical housing, configured with a plurality of plates, to support the light source and the optical system. At least one of the plurality of plates configuring the optical housing is formed with a plurality of grooves on each of a first face and a second face with a given pitch on the one of the plurality of plates, the first face and the second face being opposite faces with each other. The plurality of grooves are arranged by shifting the center of each of grooves formed on the first face and the center of each of grooves formed on the second face.

摘要翻译： 用于曝光曝光元件的曝光装置包括光源; 用于将从光源发射的光引导到曝光元件的光学系统; 以及配置有多个板的光学壳体，以支撑光源和光学系统。 构成光学壳体的多个板中的至少一个在多个板之一上形成有在第一面和第二面的每一个上具有给定间距的多个槽，第一面和第二面为 相反的面对面。 多个凹槽通过使形成在第一面上的每个凹槽的中心和形成在第二面上的每个凹槽的中心偏移而布置。

公开(公告)号：US20130076851A1

公开(公告)日：2013-03-28

申请号：US13624182

申请日：2012-09-21

申请人： Naoto WATANABE ,  Toshiaki Tokita ,  Kohji Sakai ,  Nobuaki Kubo

发明人： Naoto WATANABE ,  Toshiaki Tokita ,  Kohji Sakai ,  Nobuaki Kubo

IPC分类号： B41J2/435 ,  G02B26/08

CPC分类号： G02B26/123 ,  B41J2/473 ,  G02B27/0018

摘要： An optical scanning device scanning scan target surfaces in a first direction with light includes: a light source emitting first and second light beams corresponding to two of the scan target surfaces; an optical deflector including a reflection surface on which the emitted first and second light beams are obliquely incident while being separated from each other in a second direction perpendicular to the first direction, and deflecting the first and second light beams; a scanning lens disposed on respective optical paths of the deflected first and second light beams; and a branching optical element transmitting therethrough most of the first light beam transmitted through the scanning lens, and reflecting most of the second light beam transmitted through the scanning lens. The deflected first and second light beams intersect between the optical deflector and the branching optical element, when projected on a plane perpendicular to the first direction.

摘要翻译： 用光扫描第一方向的扫描目标表面的光扫描装置包括：发射对应于两个扫描目标表面的第一和第二光束的光源; 光偏转器，其包括反射面，发射的第一光束和第二光束在垂直于第一方向的第二方向上彼此分离并倾斜入射，并且偏转第一和第二光束; 设置在偏转的第一和第二光束的相应光路上的扫描透镜; 以及分支光学元件，透射通过扫描透镜的第一光束的大部分，并且反射透过扫描透镜的大部分第二光束。 当投影在垂直于第一方向的平面上时，偏转的第一和第二光束在光学偏转器和分支光学元件之间相交。

公开(公告)号：US08170058B2

公开(公告)日：2012-05-01

申请号：US12349985

申请日：2009-01-07

申请人： Kota Tanaka ,  Kohji Sakai ,  Fumihiro Fukae ,  Hitoshi Naoe ,  Atsuhiro Doi

发明人： Kota Tanaka ,  Kohji Sakai ,  Fumihiro Fukae ,  Hitoshi Naoe ,  Atsuhiro Doi

IPC分类号： H04J3/16

CPC分类号： H04L67/141 ,  H04L67/14

摘要： A communications device is provided which receives data frames in FIR communications mode even if the device has failed to normally receive a connect frame in SIR communications mode.A communications device according to the invention includes an incoming frame processing section for receiving an SNRM frame and UI frames in different frame formats. The SNRM frame contains a setting for a connection for data communications. The UI frames contain data. The communications device also includes a reception processing section and connect command notification sections. The reception processing section renders a light reception section stand by for reception of the UI frames in FIR communications mode. The connect command notification sections generate a connect command for output to an upper layer. The connect command enables establishing of the same connection when a data frame is received from another communications device as when a connect frame was received from the other communications device.

摘要翻译： 提供一种通信设备，即使在SIR通信模式中设备未能正常接收连接帧，也以FIR通信模式接收数据帧。 根据本发明的通信设备包括用于接收不同帧格式的SNRM帧和UI帧的输入帧处理部分。 SNRM帧包含用于数据通信的连接的设置。 UI框架包含数据。 通信设备还包括接收处理部分和连接命令通知部分。 接收处理部分使得光接收部分待机以在FIR通信模式中接收UI帧。 连接命令通知部分生成连接命令以输出到上层。 当从另一个通信设备接收到数据帧时，connect命令使得能够建立相同的连接，就像从其他通信设备接收到连接帧时一样。

公开(公告)号：US08169455B2

公开(公告)日：2012-05-01

申请号：US12685768

申请日：2010-01-12

申请人： Kohji Sakai ,  Yoshinori Hayashi

发明人： Kohji Sakai ,  Yoshinori Hayashi

IPC分类号： H01S5/068 ,  H01S5/0683 ,  B41J2/447 ,  B41J2/455 ,  B41J2/47

CPC分类号： G02B26/127 ,  G02B26/123

摘要： In an optical scanning device including a vertical cavity surface emitting laser (VCSEL), an optical scanning device controls so as to satisfy P1 Ws, where P1 is light intensity obtained when a period of time corresponding to a minimum pixel unit (referred to as “T1”) has elapsed after start of illumination; P100 is light intensity obtained when a period of time 100 T1 has elapsed after the start of illumination; Wm is the static beam spot diameter in the main-scanning direction; and Ws is the static beam spot diameter in the sub-scanning direction.

摘要翻译： 在包括垂直腔面发射激光器（VCSEL）的光学扫描装置中，光学扫描装置控制以满足P1 Ws，其中P1是当对应于最小像素单位的时间段 （简称“T1”）在照明开始后已经过去了 P100是在开始照射后经过了一段时间100T1时获得的光强度; Wm是主扫描方向上的静态束斑直径; Ws是副扫描方向上的静态束斑直径。

公开(公告)号：US08077369B2

公开(公告)日：2011-12-13

申请号：US13152989

申请日：2011-06-03

申请人： Kohji Sakai ,  Yoshinori Hayashi ,  Takeshi Ueda ,  Daisuke Ichii ,  Kenichiroh Saisho

发明人： Kohji Sakai ,  Yoshinori Hayashi ,  Takeshi Ueda ,  Daisuke Ichii ,  Kenichiroh Saisho

IPC分类号： G02B26/08

CPC分类号： G02B27/42 ,  G02B26/124 ,  G02B27/4227 ,  G02B27/4283

摘要： An optical scanning device includes a first optical system for guiding light beams emitted from a plurality of light emitting units to an optical deflector, and a second optical system for focusing the light beams to optically scan a surface to be scanned. At least one of the first optical system and the second optical system includes a resin lens having a diffractive surface. The diffractive surface includes a diffractive portion and a refractive portion. A power of the diffractive portion and a power of the refractive portion cancel each other.

摘要翻译： 光学扫描装置包括用于将从多个发光单元发射的光束引导到光学偏转器的第一光学系统和用于聚焦光束以光学扫描要扫描的表面的第二光学系统。 第一光学系统和第二光学系统中的至少一个包括具有衍射面的树脂透镜。 衍射面包括衍射部分和折射部分。 衍射部分的功率和折射部分的功率彼此抵消。