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    • 1. 发明授权
    • Optical scanning device and image forming apparatus
    • 光学扫描装置和图像形成装置
    • US07969460B2
    • 2011-06-28
    • US12489728
    • 2009-06-23
    • Kazuhiro AkatsuYasuyuki ShibayamaTakeshi Mochizuki
    • Kazuhiro AkatsuYasuyuki ShibayamaTakeshi Mochizuki
    • B41J15/14B41J27/00
    • G03G15/326G02B26/123G03G15/0435G03G2215/0404
    • Disclosed is an optical scanning device including a light source including multiple light-emitting elements, the multiple light-emitting elements being arranged in a linear manner, a collimator lens to collimate a light beam from the light source, a light-deflecting device to deflect a light beam having passed through the collimator lens to a medium to be scanned and scan the medium with the light beam, and a rear optical system arranged in an optical path between the collimator lens and the medium to be scanned, wherein the collimator lens deviates an image surface in a direction opposite to an image surface deviation on the medium to be scanned by a nearly same amount as the image surface deviation, the image surface deviation being caused by a change of an image height of the light source, and the change being caused by the rear optical system.
    • 公开了一种光学扫描装置,包括:包括多个发光元件的光源,多个发光元件以直线方式布置;准直透镜,用于准直来自光源的光束;光偏转装置,其偏转 已经通过准直透镜的光束到要被扫描的介质并用光束扫描介质;以及后光学系统,布置在准直透镜和待扫描介质之间的光路中,其中准直透镜偏离 在与要扫描的介质上的图像表面偏离相反的方向上的图像表面与图像表面偏差几乎相同的量,图像表面偏差是由光源的图像高度的变化引起的,以及变化 由后方光学系统引起。
    • 2. 发明授权
    • Light scanner and image formation apparatus therewith
    • 光扫描器及图像形成装置
    • US06842274B2
    • 2005-01-11
    • US10288447
    • 2002-11-06
    • Kazuhiro AkatsuTakeshi Mochizuki
    • Kazuhiro AkatsuTakeshi Mochizuki
    • B41J2/44B41J2/47G02B26/10G02B26/12H04N1/113G02B26/08
    • B41J2/473G02B26/123
    • A light scanner has a light source 1 of a two-dimensional array consisting of a plurality of light source elements, a coupling lens system 2 for collimating a light flux from the light source 1, a shaping lens system (cylindrical lens 4 and lens 5) for shaping the light flux, light beam deflection means 6 for deflecting and scanning the post-shaped light flux, and a scanning lens system 7 for forming an image of the deflected and scanned light flux on a scanned medium 8. Assuming that the focal length of the coupling lens system 2 is f, a slit 3 for limiting the subscanning direction width as a member for shielding a part of the light flux is placed at a location at a distance of about f from the coupling lens system 2 in an opposite direction to the light source 1.
    • 光扫描器具有由多个光源元件组成的二维阵列的光源1,用于准直来自光源1的光束的耦合透镜系统2,整形透镜系统(柱面透镜4和透镜5 ),用于使光束成形,用于偏转和扫描后形光束的光束偏转装置6,以及用于在扫描介质8上形成偏转和扫描光束的图像的扫描透镜系统7.假设焦点 耦合透镜系统2的长度为f,用于将辅助扫描方向宽度限制为用于屏蔽光束的一部分的部件的狭缝3以相对于耦合透镜系统2的距离耦合透镜系统2的大约f的距离 光源1的方向。
    • 6. 发明申请
    • Multi-beam image forming apparatus
    • 多光束成像装置
    • US20060139441A1
    • 2006-06-29
    • US11293108
    • 2005-12-05
    • Katsuhiro OnoJunshin SakamotoTakeshi Mochizuki
    • Katsuhiro OnoJunshin SakamotoTakeshi Mochizuki
    • B41J2/455
    • B41J2/473
    • A multi-beam image forming apparatus includes: first and second semiconductor laser arrays each having n laser elements; a multi-beam generation unit that generates 2n laser beams by synthesizing laser beams generated by the first and second semiconductor laser arrays; a beam detection unit that generates synchronous detection signals to obtain synchronous scanning of the respective laser beams; and a control unit. The beam detection unit includes first and second beam detection units disposed substantially at a same position in a main scanning direction and adjacently disposed in a sub-scanning direction. The n laser beams of the first and second semiconductor laser arrays are detected by the first and second beam detection unit, respectively. The control unit controls image formation start positions of the 2n laser beams on the basis of the synchronous detection signals output from the first and the second beam detection units.
    • 多光束图像形成装置包括:具有n个激光元件的第一和第二半导体激光器阵列; 多光束产生单元,通过合成由第一和第二半导体激光器阵列产生的激光束产生2n个激光束; 光束检测单元,其产生同步检测信号以获得各激光束的同步扫描; 和控制单元。 光束检测单元包括基本上设置在主扫描方向上的相同位置并相邻地设置在副扫描方向上的第一和第二光束检测单元。 第一和第二半导体激光器阵列的n个激光束分别由第一和第二光束检测单元检测。 控制单元基于从第一和第二光束检测单元输出的同步检测信号来控制2n个激光束的图像形成开始位置。