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    • 1. 发明申请
    • Optical scanning device and image forming apparatus having the same
    • 光学扫描装置及其成像装置
    • US20080100920A1
    • 2008-05-01
    • US11976754
    • 2007-10-26
    • Jun NAKAI
    • Jun NAKAI
    • G02B27/30G02B27/62
    • G02B26/124
    • Provided is an optical scanning device that can consistently obtain a light beam having a desired beam spot diameter without allowing an aperture to block parallel ray to be admitted, and that can be manufactured at lower cost. The optical scanning device has a light source that emits laser light, a collimator lens that converts the laser light emitted from the light source into parallel ray, and a lens holder that holds the collimator lens and has an aperture portion for fairing the laser light, the aperture portion being formed integrally with the lens holder. The optical scanning device also may have a collimator lens having a lens surface with which an aperture portion for fairing the laser light is brought into close contact.
    • 提供了一种光学扫描装置,其可以一致地获得具有期望的束斑直径的光束,而不允许孔径阻挡平行射线以被允许,并且可以以较低的成本制造。 光扫描装置具有发射激光的光源,将从光源发射的激光转换为平行光的准直透镜,以及保持准直透镜并具有用于使激光整流的开口部的透镜保持器, 开口部与透镜保持架一体形成。 光学扫描装置还可以具有准直透镜,该准直透镜具有透镜表面,用于使激光整流的开口部分与透镜表面紧密接触。