公开(公告)号：US06129439A

公开(公告)日：2000-10-10

申请号：US832324

申请日：1997-03-26

申请人： Janpu Hou ,  Scott M. Zimmerman ,  Karl Wayne Beeson

发明人： Janpu Hou ,  Scott M. Zimmerman ,  Karl Wayne Beeson

IPC分类号： F21V5/02 ,  F21V8/00 ,  G02F1/13357

CPC分类号： G02B6/0053 ,  F21V5/02 ,  F21Y2103/00 ,  G02F2001/133607

摘要： An optical illumination system comprising a waveguide that accepts light generated by a light source and transmits the light via total internal reflection. Attached on one face of the waveguide is an array of microprisms, with each microprism having an light input surface, a light output surface and at least one sidewall which is tilted at an angle from the direction normal to the surface of the waveguide and further comprising at least two planar faces such that light escapes from the waveguide, reflects off the tilted sidewalls and emerges from the microprism as a spatially directed light source. An array of microlenses may be positioned to accept the output of the microprisms so that the light exiting from the microlenses is a substantially collimated light source. The optical illumination system is advantageous for any application that requires a non diffuse or substantially collimated light source that is both energy efficient and contained in a low profile assembly.

摘要翻译： 一种光学照明系统，包括：波导，其接收由光源产生的光并通过全内反射透射光。 附着在波导的一个面上的是微棱镜阵列，其中每个微棱镜具有光输入表面，光输出表面和至少一个侧壁，其与垂直于波导表面的方向倾斜一定角度，还包括 至少两个平面，使得光从波导中逸出，反射离开倾斜的侧壁，并从微棱镜作为空间定向的光源出射。 微透镜阵列可以被定位成接受微棱镜的输出，使得从微透镜出射的光是基本准直的光源。 光学照明系统对于需要非均匀或基本上准直的光源的任何应用都是有利的，其既能量效率又包含在低轮廓组件中。

公开(公告)号：US5555109A

公开(公告)日：1996-09-10

申请号：US394098

申请日：1995-02-24

申请人： Scott M. Zimmerman ,  Karl W. Beeson ,  Janpu Hou ,  John C. Schweyen

发明人： Scott M. Zimmerman ,  Karl W. Beeson ,  Janpu Hou ,  John C. Schweyen

IPC分类号： F21V5/02 ,  F21V8/00 ,  G02B6/00 ,  G02F1/1335

CPC分类号： G02B6/0053 ,  F21V5/02 ,  F21Y2103/00

摘要： An optical illumination system comprising a waveguide that accepts light generated by a diffuse light source and transmits the light via total internal reflection. Attached on one face of the waveguide is an array of microprisms, with each microprism having an light input surface parallel to a light output surface and at least two sidewalls tilted at an angle from the direction normal to the surface of the waveguide such that light escapes from the waveguide, reflects off the tilted sidewalls and emerges from the microprism as a spatially directed light source. An array of microlenses may be positioned to accept the output of the microprisms so that the light exiting from the microlenses is a substantially collimated light source. The optical illumination system is advantageous for any application that requires a non diffuse or substantially collimated that is both energy efficient and contained in a low profile assembly.