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    • 47. 发明申请
    • Light collimator and lighting unit comprising such light collimator
    • 光准直仪和包括这种光准直仪的照明单元
    • US20130322116A1
    • 2013-12-05
    • US13985060
    • 2012-02-20
    • Fetze PijlmanMichel Cornelis Josephus Marie Vissenberg
    • Fetze PijlmanMichel Cornelis Josephus Marie Vissenberg
    • F21V8/00
    • G02B6/0035G02B6/0041G02B6/0061
    • The invention provides a light collimator (1) comprising (a) an elongated light waveguide (100) having a waveguide longitudinal axis (101), a waveguide length (wl), a waveguide width (ww) and a waveguide height (wh); the waveguide height (wh) defined by the height between a first waveguide surface (151) and a second waveguide surface (152), the waveguide (100) having an aspect ratio of the waveguide length (wl) and the waveguide width (ww) wl/ww>1; the waveguide comprising a plurality of elongated cavities (110); each cavity (110) comprises a cavity longitudinal axis (111), a cavity length (cl), a cavity width (cw) and a cavity height (ch); each cavity having an aspect ratio of the cavity length (cl) and the cavity width (cw) cl/cw>1, wherein the cavity longitudinal axes (111) of the plurality of cavities (110) are perpendicular to the waveguide longitudinal axis (101); and (b) a diffuse reflective layer (200) adjacent to the second waveguide surface. The invention further provides a lighting unit (2) using such collimator (1).
    • 本发明提供一种光准直仪(1),其包括:(a)具有波导纵轴(101),波导长度(w1),波导宽度(ww)和波导高度(wh)的细长光波导(100) 由第一波导表面(151)和第二波导表面(152)之间的高度限定的波导高度(wh),波导长度(w1)和波导宽度(ww)的纵横比的波导(100) wl / ww> 1; 所述波导包括多个细长空腔(110); 每个空腔(110)包括空腔纵向轴线(111),空腔长度(cl),腔体宽度(cw)和空腔高度(ch); 每个空腔具有空腔长度(cl)和空腔宽度(cw)cl / cw> 1的纵横比,其中多个空腔(110)的空腔纵向轴线(111)垂直于波导纵向轴线 101); 和(b)邻近第二波导表面的漫反射层(200)。 本发明还提供一种使用这种准直仪(1)的照明单元(2)。
    • 48. 发明授权
    • Flat and thin LED-based luminary
    • 平坦而薄的LED基灯具
    • US08511878B2
    • 2013-08-20
    • US12445312
    • 2007-10-12
    • Michel Cornelis Josephus Marie VissenbergWillem Lubertus Ijzerman
    • Michel Cornelis Josephus Marie VissenbergWillem Lubertus Ijzerman
    • F21F7/04
    • G02B6/0011G02B6/0015G02B6/0021G02B6/0031G02B6/0035G02F1/133603G02F1/133605H01L33/60
    • A light emitting device is provided, comprising a light guide plate (100) and at least one light emitting diode (110). An array of mutually spaced apart reflective surface elements (103, 103′) is arranged between said back surface (102) and said front surface (103). The reflective surface elements (103, 103′) are non-parallel relative to said back surface (101) and front surface (102), and have a front side (104) facing said front surface (102) and a back side (105) facing said back surface (101). The back surface (105) of a reflective surface element (103) faces the front surface (104) of an adjacent reflective surface element (103′). The at least one light emitting diode (110) is arranged to emit light into a region (111) between two adjacent ones of said reflective surface elements (103, 103′). Since the reflective surface elements are located within the light guide, both the back surface and the front surface of the light guide plate may be made flat. This flat surface may easily be kept clean from dust and dirt.
    • 提供了一种发光器件,包括导光板(100)和至少一个发光二极管(110)。 在所述后表面(102)和所述前表面(103)之间布置有相互间隔开的反射表面元件(103,103')的阵列。 反射面元件(103,103')相对于所述后表面(101)和前表面(102)不平行,并且具有面向所述前表面(102)的前侧(104)和背面(105) )朝向所述后表面(101)。 反射表面元件(103)的背面(105)面向相邻的反射表面元件(103')的前表面(104)。 所述至少一个发光二极管(110)布置成将光发射到两个相邻的所述反射表面元件(103,103')之间的区域(111)中。 由于反射表面元件位于光导内,导光板的后表面和前表面都可以是平坦的。 该平坦表面可以容易地保持清洁而不受灰尘和污垢的干扰。