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    • 3. 发明授权
    • LED
    • US07789537B2
    • 2010-09-07
    • US12248010
    • 2008-10-08
    • Fang-Xiang YuShun-Yuan Jan
    • Fang-Xiang YuShun-Yuan Jan
    • F21V5/00
    • H01L33/54
    • An LED (10) includes a chip with a light-emitting surface (140) and an encapsulation on the chip. The encapsulation has a light output surface (110) facing the light-emitting surface of the chip and has a convex surface (112) surrounding a concave surface (114). A portion of light (30) emitted by the light-emitting surface is refracted divergently via the concave surface to a predetermined area above and around the concave surface, and another portion of light (40) emitted by the light-emitting surface is refracted convergently via the convex surface to the predetermined area.
    • LED(10)包括具有发光表面(140)的芯片和芯片上的封装。 封装具有面向芯片的发光表面的光输出表面(110),并且具有包围凹表面(114)的凸表面(112)。 由发光面发射的光的一部分(30)经由凹面发散折射到凹面的上方和周围的预定区域,并且由发光面发射的另一部分光(40)会收敛地折射 经由凸表面到预定区域。