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    LENS WITH MULTIPLE PROTRUSIONS
    14.
    发明申请
    LENS WITH MULTIPLE PROTRUSIONS 审中-公开
    镜头与多个突出

    公开(公告)号：US20110157726A1

    公开(公告)日：2011-06-30

    申请号：US12835742

    申请日：2010-07-14

    Applicant: YU-SHU CHEN ,  AN-CHI WEI ,  CHIH-CHUNG TSAO ,  SHAN-JU LIN

    Inventor： YU-SHU CHEN ,  AN-CHI WEI ,  CHIH-CHUNG TSAO ,  SHAN-JU LIN

    IPC: G02B3/08

    CPC classification number: G02B3/08 ,  F24S23/31 ,  Y02E10/40

    Abstract: A non-imaging lens includes a transparent member, a first Fresnel lens portion and a second Fresnel lens portion. The transparent member includes a first surface and a second surface. The first Fresnel lens portion includes a plurality of first saw-toothed protrusions concentrically defined on the first surface. The second Fresnel lens portion includes a plurality of second saw-toothed protrusions concentrically defined on the first surface. The second saw-toothed protrusions are defined around the first saw-toothed protrusions. Each of radii of curvature of the second saw-toothed protrusions is different from each of radii of curvature of the first saw-toothed protrusions.

    Abstract translation: 非成像透镜包括透明构件，第一菲涅尔透镜部分和第二菲涅尔透镜部分。 透明构件包括第一表面和第二表面。 第一菲涅尔透镜部分包括同心地限定在第一表面上的多个第一锯齿状突起。 第二菲涅尔透镜部分包括同心地限定在第一表面上的多个第二锯齿状突起。 第二锯齿形突起围绕第一锯齿突起限定。 第二锯齿形突起的每个曲率半径与第一锯齿形突起的每个曲率半径不同。

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