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    • 3. 发明授权
    • Multi-lens light emitting diode
    • 多镜头发光二极管
    • US07153000B2
    • 2006-12-26
    • US10957650
    • 2004-10-05
    • Jung Kyu ParkYoung Sam ParkHun Joo HahmYoung June JeongHyung Suk Kim
    • Jung Kyu ParkYoung Sam ParkHun Joo HahmYoung June JeongHyung Suk Kim
    • F21V3/02
    • H01L33/58G02F1/133603H01L33/54Y10S362/80
    • A multi-lens LED has multiple lenses and an intermediate layer interposed between the multiple lenses in order to radiate light emitted from an LED chip in a desired direction and/or at a desired beam angle. The first lens is centered behind the LED chip when seen in the propagation direction of light. The second lens has a concave structure and surrounds the first lens. The intermediate layer is interposed between the first and second lenses, so that light emitted from the LED chip can be radiated at a wide beam angle. When provided in the form of a hemisphere, the multi-lens LED can be attached, e.g., to a wall or a ceiling for interior lighting. On the other hand, when provided in the form of a semicylinder, the multi-lens LEDs can be arranged in arrays to be used, e.g., as a light source of an LCD backlight apparatus.
    • 多透镜LED具有多个透镜和介于多个透镜之间的中间层,以便沿期望的方向和/或以期望的光束角辐射从LED芯片发射的光。 当在光的传播方向上观察时,第一透镜位于LED芯片的后面。 第二透镜具有凹形结构并围绕第一透镜。 中间层介于第一透镜和第二透镜之间,使得从LED芯片发出的光能够以宽的光束角度被辐射。 当以半球的形式提供时,多透镜LED可以例如附接到墙壁或天花板上用于室内照明。 另一方面,当以半圆柱形式提供时,多透镜LED可以排列成阵列以用作例如LCD背光装置的光源。