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1. 发明授权

US08848009B2 Optical scanning device and image forming apparatus 有权
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：US08848009B2
公开(公告)日：2014-09-30
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： B41J2/385 , B41J2/435 , B41J15/14 , B41J27/00 , G02B26/08 , G02B26/10 , G02B26/12 , B41J2/47 , G02B27/00
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。

2. 发明授权

US08786658B2 Exposure device and image forming apparatus 失效
标题翻译：曝光装置和图像形成装置
公开(公告)号：US08786658B2
公开(公告)日：2014-07-22
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： B41J15/14 , B41J27/00
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中的每一个上具有给定间距的多个槽，第一面和第二面是相反的面对面。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。

3. 发明授权

US09625711B2 Optical scanning apparatus and image forming device 有权
公开(公告)号：US09625711B2
公开(公告)日：2017-04-18
申请号：US13718514
申请日：2012-12-18
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： G02B26/12 , B41J2/47
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.

4. 发明授权

US08922863B2 Optical scanning device and image forming apparatus 有权
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：US08922863B2
公开(公告)日：2014-12-30
申请号：US13608216
申请日：2012-09-10
申请人： Toshiaki Tokita , Nobuaki Kubo , Naoto Watanabe , Kohji Sakai
发明人： Toshiaki Tokita , Nobuaki Kubo , Naoto Watanabe , Kohji Sakai
IPC分类号： G02B26/08 , B41J2/47 , G03G15/043 , G02B26/12 , G02B3/00 , G02B5/30
CPC分类号： B41J2/473 , G02B3/0075 , G02B5/3058 , G02B26/123 , G03G15/0435
摘要： An optical scanning device separately scanning plural scan target surfaces in a first direction with light includes: a light source unit configured to emit first and second light beams mutually different in polarization state; an optical deflector configured to rotate around an axis parallel to a second direction perpendicular to the first direction, and deflect the emitted light beams; an imaging optical element provided on respective optical paths of the deflected light beams; a polarization adjustment element provided on the optical paths of the light beams transmitted through the imaging optical element, and configured to correct respective changes in polarization state of the light beams occurring during the transmission of the light beams through the imaging optical element; and a polarization separation element provided on the optical paths of the light beams emitted from the polarization adjustment element, and configured to separate the light beams from each other.
摘要翻译：利用光分别在第一方向上扫描多个扫描目标表面的光学扫描装置包括：光源单元，被配置为发射极化状态彼此不同的第一和第二光束; 光学偏转器，被配置为围绕平行于与第一方向垂直的第二方向的轴线旋转，并偏转发射的光束; 设置在偏转光束的相应光路上的成像光学元件; 偏振调节元件，设置在通过成像光学元件透射的光束的光路上，并且被配置为校正在通过成像光学元件的光束透射期间发生的光束的偏振状态的变化; 以及偏振分离元件，设置在从偏振调节元件发射的光束的光路上，并且被配置为将光束彼此分离。

5. 发明授权

US09925798B2 Optical scanning apparatus and image forming device 有权
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.

6. 发明申请

US20130250029A1 EXPOSURE DEVICE AND IMAGE FORMING APPARATUS 失效
标题翻译：曝光装置和图像形成装置
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。

7. 发明申请

US20130076851A1 OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：光学扫描装置和图像形成装置
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。

8. 发明授权

US10302767B2 Object detector and sensor 有权
公开(公告)号：US10302767B2
公开(公告)日：2019-05-28
申请号：US15729324
申请日：2017-10-10
申请人： Kazuhiro Akatsu , Tadashi Nakamura , Kohji Sakai
发明人： Kazuhiro Akatsu , Tadashi Nakamura , Kohji Sakai
IPC分类号： G01S17/42 , G01S7/486 , H05B37/02 , G01S17/93 , G01S7/481 , G01S7/484 , G01S7/51
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.

9. 发明授权

US10148064B2 Semiconductor laser driving apparatus, optical scanning apparatus, object detection apparatus, and mobile apparatus 有权
公开(公告)号：US10148064B2
公开(公告)日：2018-12-04
申请号：US15058730
申请日：2016-03-02
申请人： Kohji Sakai , Masataka Uehira , Shigeaki Imai , Tadashi Nakamura
发明人： Kohji Sakai , Masataka Uehira , Shigeaki Imai , Tadashi Nakamura
IPC分类号： H01S5/042 , G01S17/10 , G01S17/42 , G01S7/484 , G01S7/497 , G02B26/12 , G01S17/02 , G01S17/93 , G01S7/481
摘要： A semiconductor laser driving apparatus for driving a semiconductor laser serving as a light source for optical scanning, the semiconductor laser driving apparatus includes: first and second switching elements that are each capable of switching energization of the semiconductor laser ON/OFF; a first pulse generation unit that intermittently outputs first driving pulses to the first switching element in a first time slot; and a second pulse generation unit that outputs a second driving pulse to the second switching element in a second time slot different from the first time slot.

10. 发明授权

US10031228B2 Object detecting apparatus 有权
公开(公告)号：US10031228B2
公开(公告)日：2018-07-24
申请号：US14523042
申请日：2014-10-24
申请人： Kohji Sakai , Tadashi Nakamura
发明人： Kohji Sakai , Tadashi Nakamura
IPC分类号： G01C3/08 , G01S17/02 , G01S17/42 , G01S17/58 , G01S17/93 , G01S7/481 , G01S7/484 , G06K9/00 , G06K9/20 , G08G1/16
摘要： An object detecting apparatus includes: a light projection unit that is an array light source in which each of a plurality of light emission areas emits light, an optical scanning unit that performs scanning with the light, which is emitted from the light projection unit, in a first direction, and a light receiving unit that receives reflected light which is the light, with which the scanning is performed, being reflected by an object, and an object information acquiring unit that detects presence/absence of the object based on emission timing at which the light is emitted from the light projection unit and light receiving timing at which the light receiving unit receives the reflected light.

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