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    • 1. 发明申请
    • FLAT AND THIN LED-BASED LUMINARY PROVIDING COLLIMATED LIGHT
    • 平面和薄型LED基础提供集合光
    • US20100237359A1
    • 2010-09-23
    • US12377564
    • 2007-09-12
    • Hugo J. CornelissenWillem L. IjzermanMichel C. J. M. Vissenberg
    • Hugo J. CornelissenWillem L. IjzermanMichel C. J. M. Vissenberg
    • H01L27/15
    • G02B6/0068F21W2131/402G02B6/0028G02B6/0053G02B6/0073
    • A light-emitting device (100), comprising a plurality of light emitting diodes (107) arranged spaced apart from each other on a substrate (108), is provided. The device further comprises a light guide plate (101) having a front surface (102) and an opposing back surface (103) that is provided with an array of protrusions (104) extending towards said substrate. The light guide plate is arranged such that light-emitting diodes emits light towards light receiving faces (105) of the protrusions (104). Further, collimators (110) are arranged between the light emitting diodes and the light receiving faces, to collimate the light before it enters the light guide plate.The light from the plurality of LEDs will be transmitted in to the light guide plate and will be distributed therein before exiting the light guide plate via the front side thereof. Thus, the present invention provides a light-emitting device that provides well-distributed and collimated light from a plurality of point light sources.
    • 提供了一种发光器件(100),包括在衬底(108)上彼此间隔开布置的多个发光二极管(107)。 该装置还包括具有前表面(102)和相对的后表面(103)的导光板(101),该背面设置有朝向所述基板延伸的突起阵列(104)。 导光板被布置成使得发光二极管朝向突起(104)的光接收面(105)发光。 此外,准直器(110)布置在发光二极管和光接收面之间,以在入射到导光板之前准直光。 来自多个LED的光将被传输到导光板,并且将在其中经由其前侧离开导光板之前分布在其中。 因此,本发明提供了一种从多个点光源提供分布均匀和准直的光的发光装置。