Polarized light beam source in a vehicle headlight
    1.
    发明授权
    Polarized light beam source in a vehicle headlight 失效
    汽车前大灯中的极化光束源

    公开(公告)号:US3935444A

    公开(公告)日:1976-01-27

    申请号:US502761

    申请日:1974-09-03

    CPC分类号: G02B27/285 F21S48/114

    摘要: A polarizer structure for a headlight includes an interference-type polarizer followed by an absorption-type polarizer. The interference-type polarizer in one form of the invention is constituted by rectangular plate polarizing sections in a zigzag arrangement, so that the apex angle formed by adjacent polarizing sections is always 90.degree. while the angle of each polarizing section to the optic axis is 45.degree.. In another form of the invention, the polarizer sections are arranged in a diverging louvre arrangement provided with reflecting layers between the polarizing sections, both the polarizing sections and the reflecting layers at an angle of 45.degree. with the optic axis.

    摘要翻译: 用于头灯的偏振器结构包括干涉型偏振器以及吸收型偏振器。 本发明的一种形式的干涉型偏振片由Z字形排列的矩形板偏振片构成,相邻偏振片所形成的顶角为90度,偏光片与光轴的角度为45度 DEG。 在本发明的另一形式中,偏振器部分布置在发散的百叶窗装置中,在偏振部分之间设置反射层,偏振部分和反射层与光轴呈45度角。