FRESNEL LENS AND OPTICAL DEVICE
    5.
    发明申请
    FRESNEL LENS AND OPTICAL DEVICE 有权
    FRESNEL镜头和光学装置

    公开(公告)号:US20150261008A1

    公开(公告)日:2015-09-17

    申请号:US14725996

    申请日:2015-05-29

    CPC classification number: G02C7/022 G02B3/08 G02C7/02 G02C2202/20

    Abstract: A refractive Fresnel lens used for an optical system including an image plane, which includes a plurality of zone lens surfaces disposed concentrically and a plurality of side wall surfaces each formed between adjacent zone lens surfaces, is characterized in that the side wall surfaces are modulated so as to spatially spread in the image plane noise light due to reflection and/or refraction at the side wall surfaces.

    Abstract translation: 用于包括图像平面的光学系统的折射菲涅尔透镜,其包括同心设置的多个区域透镜表面和各自形成在相邻区域透镜表面之间的多个侧壁表面,其特征在于,侧壁表面被调制为 由于在侧壁表面上由于反射和/或折射而在图像平面上空间扩散噪声光。

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