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    • 10. 发明授权
    • Light-directing LED apparatus
    • 导光LED装置
    • US07618163B2
    • 2009-11-17
    • US11695483
    • 2007-04-02
    • Kurt S. Wilcox
    • Kurt S. Wilcox
    • F21V5/00
    • F21V31/04F21V5/04F21V17/06F21W2131/103F21W2131/105F21Y2115/10G02B3/02G02B19/0014G02B19/0061G02B27/0955H01L33/54Y10S362/80
    • LED apparatus for illumination toward a preferential side, including a light emitter having at least one LED on a base, a primary lens positioned over the light emitter and having a central axis, and a secondary lens placed with an inner surface surrounding the primary lens. The secondary lens has a base-adjacent lower end defining a main plane substantially perpendicular to the central axis, and a compound outer lens surface with a middle-region reference point defining a reference axis parallel to the central axis. The compound outer lens surface includes (A) a principal perimeter surface centered on the preferential side, the principal perimeter surface (a) projecting to a ridgeline subtending a substantial angle about the central axis, and (b) terminating inwardly at the ridgeline, (B) a middle region containing the reference point and having a concavity thereabout, and (C) a non-principal perimeter surface centered on the non-preferential side and adjoining the middle region and the principal perimeter surface.
    • 用于朝向优先侧照明的LED装置,包括在基座上具有至少一个LED的发光体,位于发光体上方并具有中心轴的主透镜,以及配置有围绕主透镜的内表面的次透镜。 辅助透镜具有限定基本上垂直于中心轴的主平面的基部相邻端,以及具有中心区域参考点的复合外透镜表面,该中间区域参考点限定与中心轴线平行的基准轴线。 复合外透镜表面包括(A)以优先侧为中心的主周边表面,主周边表面(a)突出于脊线绕着中心轴线施加相当大的角度,以及(b)在棱线处向内终止( B)包含参考点并在其周围具有凹度的中间区域,以及(C)以非优先侧为中心并邻接中间区域和主周边表面的非主要周边表面。