发明名称 Collimating optical device and system
摘要 There is provided a light-guide, compact collimating optical device, including a light-guide having a light-waves entrance surface, a light-waves exit surface and a plurality of external surfaces, a light-waves reflecting surface carried by the light-guide at one of the external surfaces, two retardation plates carried by light-guides on a portion of the external surfaces, a light-waves polarizing beamsplitter disposed at an angle to one of the light-waves entrance or exit surfaces, and a light-waves collimating component covering a portion of one of the retardation plates. A system including the optical device and a substrate, is also provided.
申请公布号 US9417453(B2) 申请公布日期 2016.08.16
申请号 US201414149058 申请日期 2014.01.07
申请人 LUMUS LTD. 发明人 Amitai Yaakov
分类号 G02B5/30;G02B27/28;G02B27/01;G02B6/34;G02B6/27;G02B5/04;G02B23/02;H04N13/04;G02B27/22;G02B27/14;F21V8/00;G02B27/26;G02B27/30;G02F1/01;G02B6/00 主分类号 G02B5/30
代理机构 代理人
主权项 1. An optical system, comprising: a light-transmitting substrate having at least two external major surfaces parallel to each other and edges; an optical element for coupling light-waves into the substrate by internal reflection from the major surfaces; at least one partially reflecting surface, located in the substrate for coupling the light-waves out of the substrate, the partially reflecting surface being non-parallel to the major surfaces of the substrate; and at least one optical device, optically cemented at an interface plane to one of the major external surfaces of the substrate; wherein light-waves of the light-waves coupled into the substrate by internal reflection are trapped inside the substrate, are substantially reflected from the interface plane by internal reflection and impinge on the interface plane from within one of the external major surfaces of the substrate, the interface plane coated with angular sensitive coating for trapping the light-waves inside the substrate by high reflectance from at least one of the external major surfaces of the substrate, and wherein the angular sensitive coating having high reflectance at all incident angles larger than 47° and low reflectance at all incident angles smaller than 15° for an entire chromatic region between 460 nm and 640 nm.
地址 Rehovot IL
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