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    • 6. 发明专利
    • Scanning optical device, image forming device, and manufacturing method for reflective member
    • 扫描光学装置,图像形成装置和反射构件的制造方法
    • JP2014115515A
    • 2014-06-26
    • JP2012270305
    • 2012-12-11
    • Canon Incキヤノン株式会社
    • KIMURA KAZUMI
    • G02B26/10B41J2/44G02B5/08G02B13/00H04N1/113
    • C23C14/5886C23C14/18G02B26/10G03G15/0435Y10T29/49885
    • PROBLEM TO BE SOLVED: To provide a scanning optical device which has a reflective member with a reduced size and improved durability and can be manufactured at reduced costs, and to provide a manufacturing method for the reflective member.SOLUTION: A scanning optical device includes: a deflector which deflects and sweeps a light beam from a light source in a main scanning direction; an incident optical system which guides the light beam from the light source to the deflector; an image forming optical system which forms an image from the light beam from the deflector on a scanning surface; and a reflective member which is located in an optical path of the light beam deflected and swept in the main scanning direction by the deflector to reflect a portion of the deflected and swept light beam. The reflective member has a reflective surface for reflecting the deflected and swept light beam, first end faces parallel to the main scanning direction, and second end faces perpendicular to the main scanning direction. The second end faces are more corrosion resistant than the first end faces.
    • 要解决的问题:提供一种扫描光学装置,其具有尺寸减小和耐久性改善并且可以以低成本制造的反射构件,并提供反射构件的制造方法。解决方案:扫描光学装置包括: 偏转器,其在主扫描方向上偏转并扫描来自光源的光束; 入射光学系统,其将光束从光源引导到偏转器; 图像形成光学系统,其在来自所述偏转器的光束在扫描表面上形成图像; 以及反射构件,其位于通过偏转器在主扫描方向上偏转和扫掠的光束的光路中,以反射偏转和扫掠的光束的一部分。 反射构件具有用于反射偏转和扫掠光束的反射表面,第一端面平行于主扫描方向,第二端面垂直于主扫描方向。 第二端面比第一端面更耐腐蚀。