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91. 发明授权

US09817123B2 Object detector and sensor 有权
公开(公告)号：US09817123B2
公开(公告)日：2017-11-14
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 , H05B37/02 , G01S17/93 , G01S7/481 , G01S7/484 , G01S7/486 , G01S7/51
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.

92. 发明授权

US09568605B2 Object detector and sensor 有权
标题翻译：物体检测器和传感器
公开(公告)号：US09568605B2
公开(公告)日：2017-02-14
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 , G01S17/93 , G01S7/481 , G01S7/484 , G01S7/486
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。

93. 发明申请

US20160061955A1 OPTICAL SCANNER, OBJECT DETECTOR, AND SENSING APPARATUS 有权
标题翻译：光学扫描仪，对象检测器和感应装置
公开(公告)号：US20160061955A1
公开(公告)日：2016-03-03
申请号：US14813321
申请日：2015-07-30
申请人： Shigeaki Imai , Masataka Uehira , Kohji Sakai , Tadashi Nakamura , Yukio Itami
发明人： Shigeaki Imai , Masataka Uehira , Kohji Sakai , Tadashi Nakamura , Yukio Itami
IPC分类号： G01S17/93 , G01S17/06 , G01S17/58
CPC分类号： G01S17/936 , G01S7/4817 , G01S7/484 , G01S17/10 , G01S17/42 , G01S17/58
摘要： An optical scanner is provided including a light source configured to emit light, a light source driving device configured to drive the light source, a light deflector having at least one rotating reflection plane and configured to deflect the light emitted from the light source to a scanning area, and a light detector configured to output a signal to control a timing at which scanning of the scanning area by the light deflected by the light deflector starts, where the light detector and the scanning area are sequentially scanned in a single scanning by one reflection plane of the light deflector, and the light source driving device drives the light source using a first driving method when the light scans the light detector, and drives the light source using a second driving method that is different from the first driving method when the light scans the scanning area.
摘要翻译：提供了一种光学扫描器，包括配置成发光的光源，被配置为驱动光源的光源驱动装置，具有至少一个旋转反射平面并被配置为使从光源发射的光偏转到扫描的光偏转器区域，以及光检测器，被配置为输出信号以控制由光偏转器偏转的光开始扫描区域的扫描的定时，其中光检测器和扫描区域在单次扫描中通过一次反射被顺序地扫描并且当光扫描光检测器时，光源驱动装置使用第一驱动方法驱动光源，并且当光照不同于第一驱动方法时使用与第一驱动方法不同的第二驱动方法来驱动光源扫描扫描区域。

94. 发明授权

US08441513B2 Light source device and image forming apparatus 有权
标题翻译：光源装置和图像形成装置
公开(公告)号：US08441513B2
公开(公告)日：2013-05-14
申请号：US12881348
申请日：2010-09-14
申请人： Kohji Sakai
发明人： Kohji Sakai
IPC分类号： B41J27/00 , B41J2/435
CPC分类号： G02B27/20 , G03B27/54 , H04N1/1135 , H04N1/12 , H04N2201/0082
摘要： A light source device includes a surface emitting laser, a surface emitting laser holding unit on which the surface emitting laser is mounted, a parallel plate that is arranged on a light path of a light flux from the surface emitting laser so that the light flux enters into one surface thereof, and that is made of a transparent material, and a holder having a through hole that functions as a light path of the light flux from the surface emitting laser, wherein the surface emitting laser holding unit is brought into contact with the holder, the parallel plate is fixedly bonded to the holder, and a part of the through hole of the holder is sealed with the surface emitting laser holding unit and the parallel plate.
摘要翻译：光源装置包括表面发射激光器，其上安装有表面发射激光器的表面发射激光器保持单元，平行板，其布置在来自表面发射激光器的光通量的光路上，使得光束进入由透明材料制成的一个表面，以及具有用作来自表面发射激光的光束的光路的通孔的保持器，其中表面发射激光器保持单元与平行板固定在支架上，并且保持器的通孔的一部分用表面发射激光器保持单元和平行板密封。

95. 发明授权

US08009342B2 Optical scanning device, image forming apparatus, and controlling method 有权
标题翻译：光学扫描装置，成像装置和控制方法
公开(公告)号：US08009342B2
公开(公告)日：2011-08-30
申请号：US12901768
申请日：2010-10-11
申请人： Kohji Sakai
发明人： Kohji Sakai
IPC分类号： G02B26/08
CPC分类号： G02B26/123 , B41J2/455 , B41J2/473 , G02B26/127 , G03G15/04072 , G03G15/0435 , G03G15/326 , G06K15/1209
摘要： An optical scanning device includes a vertical cavity surface emitting laser, a driving unit that controls modulation driving, a coupling optical system that couples a beam, an aperture that is configured to define a beam spot diameter, a deflecting unit that deflects a laser beam incoming, and a scanning optical system that guides the laser beam, wherein the driving unit controls so as to satisfy conditions 1 and 2 below: condition 1: P1>P100, condition 2: Wm
摘要翻译：光学扫描装置包括垂直腔表面发射激光器，控制调制驱动的驱动单元，耦合光束的耦合光学系统，被配置为限定光束光斑直径的孔径，使激光束入射偏转的偏转单元以及引导激光束的扫描光学系统，其中驱动单元控制以满足以下条件1和2：条件1：P1> P100，条件2：Wm

96. 发明申请

US20090059333A1 Optical scanning apparatus, and image forming apparatus 失效
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：US20090059333A1
公开(公告)日：2009-03-05
申请号：US12219529
申请日：2008-07-23
申请人： Kohji Sakai
发明人： Kohji Sakai
IPC分类号： G02B26/10
CPC分类号： G02B26/124 , G02B7/008 , G02B27/0037 , G02B27/4227 , G02B27/4283
摘要： An optical scanning apparatus includes a semiconductor laser and a first optical element that are fixed on a single continuous member. A second optical element, which is a diffraction optical element, has a diffracting surface in which an elliptical groove is formed and which includes a diffracting portion power such that a change in the beam waist position in a main scan direction and a sub-scan direction due to temperature variation in the optical scanning apparatus becomes substantially zero. The member on which the semiconductor laser and the first optical element are fixed has a linear coefficient of expansion such that the ellipticity of the elliptical groove increases.
摘要翻译：光学扫描装置包括固定在单个连续构件上的半导体激光器和第一光学元件。作为衍射光学元件的第二光学元件具有衍射面，其中形成有椭圆形槽，并且包括衍射部分的力，使得在主扫描方向和副扫描方向上的光束腰部位置的变化由于光学扫描装置的温度变化大致为零。半导体激光器和第一光学元件固定的部件具有线性膨胀系数，使得椭圆形槽的椭圆度增加。

97. 发明授权

US07330296B2 Synchronous detector, optical scanner, and image forming apparatus 有权
标题翻译：同步检测器，光学扫描仪和图像形成装置
公开(公告)号：US07330296B2
公开(公告)日：2008-02-12
申请号：US10758212
申请日：2004-01-16
申请人： Kohji Sakai
发明人： Kohji Sakai
IPC分类号： G02B26/08
CPC分类号： H04N1/0473 , H04N1/113
摘要： A synchronous detector detects timing of scanning by an optical scanner in an image forming apparatus. The optical scanner has a light source that emits a light beam, a deflecting unit that deflects the light beam, a scanning optical element that focuses the light beam deflected by the deflecting unit onto a surface to be scanned. The synchronous detector includes a photoreceiver, and a synchronous optical element that focus the light beam deflected by the deflecting unit onto the photoreceiver. The synchronous optical element satisfies a relationship fm
摘要翻译：同步检测器检测图像形成装置中的光学扫描器的扫描定时。光学扫描器具有发射光束的光源，使光束偏转的偏转单元，将由偏转单元偏转的光束聚焦到待扫描表面上的扫描光学元件。同步检波器包括光接收器和将由偏转单元偏转的光束聚焦到光接收器上的同步光学元件。同步光学元件满足关系fm

98. 发明授权

US06903855B2 Multi-beam scanning method, apparatus and multi-beam light source device achieving improved scanning line pitch using large light emitting points interval 失效
标题翻译：多光束扫描方法，装置和多光束光源装置，使用大的发光点间隔实现改进的扫描线间距
公开(公告)号：US06903855B2
公开(公告)日：2005-06-07
申请号：US09969982
申请日：2001-10-03
申请人： Magane Aoki , Kohji Sakai
发明人： Magane Aoki , Kohji Sakai
IPC分类号： G02B26/12 , G02B26/08
CPC分类号： B41J2/473 , G02B26/123 , Y10S359/90
摘要： A multi-beam scanning method for scanning a scanning surface with a plurality of beams which are formed into a plurality of beam spots separated from each other in a sub scanning direction includes providing n number of semiconductor laser array units, each of the n number of semiconductor laser array units having m number of light emitting points, where n is not equal to 1 and m is not equal to 1, coupling light beams emitted from the light emitting points of the semiconductor laser arrays, synthesizing the coupled beams with a beam synthesizing device to obtain m×n number of beams and deflecting the m×n number of beams at substantially the same time such that the deflected beams are impinged on the scanning surface.
摘要翻译：一种用于扫描具有在副扫描方向上彼此分离的多个光束点的多个光束的扫描表面的多光束扫描方法包括提供n个半导体激光器阵列单元，每个n个具有m个发光点的半导体激光器阵列单元，其中n不等于1，m不等于1，耦合从半导体激光器阵列的发光点发射的光束，将合并光束与光束合成装置，以获得m×n个数量的光束并且在基本上相同的时间处偏转m×n个光束，使得偏转的光束撞击在扫描表面上。

99. 发明授权

US06856438B2 Optical scanning lens and apparatus capable of effectively generating accurately-pitched light spots, and image forming apparatus using the same 有权
标题翻译：能够有效地产生精确调色的光斑的光学扫描透镜和装置，以及使用其的成像装置
公开(公告)号：US06856438B2
公开(公告)日：2005-02-15
申请号：US10382489
申请日：2003-03-07
申请人： Kenichi Takanashi , Kohji Sakai
发明人： Kenichi Takanashi , Kohji Sakai
IPC分类号： B41J2/44 , G02B3/00 , G02B13/00 , G02B13/18 , G02B26/10 , G02B26/12 , G02B27/00 , H04N1/036 , H04N1/113 , G02B26/08
CPC分类号： G02B27/0031 , G02B26/123
摘要： An optical scanning lens used in a multi-beam scanning optical apparatus including a first mechanism reforming the light beams into line images, a deflecting mechanism reforming the light beams into multiple scanning beams, and a second mechanism reforming the multiple scanning beams into scanning light spots running on a recording surface. The optical scanning lens has a refractive index profile and is included in the second optical mechanism, and satisfies a formula (m−1)×PLs×V/WLs≦2.3×10−6, where m is a number of light emission points, PLs is a pitch of the multiple beams, V represents the refractive index profile, W [mm] represents an effective recording width of the recording surface, and WLs represents an effective range of the optical scanning lens in the sub-scanning direction corresponding to the effective recording width W. An optical scanning apparatus or image forming apparatus may use the optical scanning apparatus.
摘要翻译：一种用于多光束扫描光学装置中的光学扫描透镜，包括将光束重新形成线图像的第一机构，将光束重新形成多个扫描光束的偏转机构，以及将多个扫描光束重新形成扫描光点的第二机构在录音表面上运行。光学扫描透镜具有折射率分布并且包括在第二光学机构中，并且满足公式（m-1）xPLsxV / WLs <= 2.3×10 -6，其中m是发光点的数量，PL 是多个光束的间距，V表示折射率分布，W [mm]表示记录表面的有效记录宽度，WLs表示与扫描方向对应的光学扫描透镜的有效范围，记录宽度W.光学扫描装置或图像形成装置可以使用光学扫描装置。

100. 发明授权

US06781729B2 Optical scanning system with unvarying image surface under environmental temperature change 有权
标题翻译：光学扫描系统在环境温度变化下具有不变的图像表面
公开(公告)号：US06781729B2
公开(公告)日：2004-08-24
申请号：US10207241
申请日：2002-07-30
申请人： Seizo Suzuki , Hiromichi Atsuumi , Kohji Sakai
发明人： Seizo Suzuki , Hiromichi Atsuumi , Kohji Sakai
IPC分类号： G02B2608
CPC分类号： G02B26/125 , G02B26/124 , G02B27/0031 , Y10S359/90
摘要： An optical scanning device employing a scanning imaging optical system that includes a first optical system configured to receive a light flux emitted from a light source, and a second optical system configured to condense the light flux to form a long linear image in a main scanning direction in a vicinity of a deflecting surface of an optical deflector. Also includes is a third optical system configured to condense a light flux deflected by the optical deflector toward a scanned surface to form an optical beam spot on the scanned surface so that a maximum value &Dgr;Mmax and a minimum value &Dgr;Mmin of an amount of change &Dgr;M in an image-surface curvature in the main scanning direction at each image height in an effective writing region with respect to a change &Dgr;T in an environmental temperature satisfy a condition of |(&Dgr;Mmax−&Dgr;Mmin)/&Dgr;T|
摘要翻译：一种采用扫描成像光学系统的光学扫描装置，包括被配置为接收从光源发射的光束的第一光学系统和被配置为冷凝光束以在主扫描方向上形成长线性图像的第二光学系统在光偏转器的偏转表面附近。还包括第三光学系统，其被配置为将由光学偏转器偏转的光束朝向扫描表面冷凝，以在扫描表面上形成光束斑点，使得ΔM的最大值ΔMmax和ΔMmin的最小值DeltaMmin在相对于环境温度的变化DeltaT，在有效写入区域中的每个图像高度处的主扫描方向上的图像表面曲率满足条件|（ΔMmax-ΔMmin）/ΔT| <0.01（mm /℃））。

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