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    • 5. 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。
    • 10. 发明授权
    • Optical scanning apparatus and image forming apparatus
    • 光学扫描装置和图像形成装置
    • US07016093B2
    • 2006-03-21
    • US11024622
    • 2004-12-30
    • Takeshi MochizukiSusumu TateyamaKazutaka Setoma
    • Takeshi MochizukiSusumu TateyamaKazutaka Setoma
    • G02B26/08
    • G02B13/0005
    • In an optical scanning apparatus, a light beam emitted from a light source is deflected and scanned by a light deflecting member, and then scanned and imaged with substantial speed uniformity onto a medium to be scanned by a scanning optical element. The apparatus is configured so that, when the angle formed by the light beam that is deflected and scanned and the optical axis of the scanning optical element is θ, the amount of positional deviation due to deviation from speed uniformity of the light beam on the medium to be scanned is ε(θ), the spatial scan density on the medium to be scanned is P, and the maximum of an absolute value of the angle θ is θo, an expression of |dε(θ)/dθ|≦5.0×10/Pθo holds.
    • 在光学扫描装置中,从光源发射的光束被光偏转构件偏转和扫描,然后以显着的速度均匀性扫描和成像,由扫描光学元件扫描。 该装置被配置为使得当由被偏转和扫描的光束形成的角度和扫描光学元件的光轴为θ时,由于光束在介质上的速度均匀性的偏离而导致的位置偏差量 要扫描的是epsilon(theta),要扫描的介质上的空间扫描密度为P,角度θ的绝对值的最大值为θo,| depsilon(θ)/dθ|≤= 5.0的表达式 x10 / Pthetao持有。