发明名称 Light collimator and lighting unit comprising such light collimator
摘要 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).
申请公布号 US2013322116(A1) 申请公布日期 2013.12.05
申请号 US201213985060 申请日期 2012.02.20
申请人 PIJLMAN FETZE;VISSENBERG MICHEL CORNELIS JOSEPHUS MARIE;KONINKLIJKE PHILIPS N.V. 发明人 PIJLMAN FETZE;VISSENBERG MICHEL CORNELIS JOSEPHUS MARIE
分类号 F21V8/00 主分类号 F21V8/00
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