公开(公告)号：US20150316764A1

公开(公告)日：2015-11-05

申请号：US14703944

申请日：2015-05-05

Applicant: LightMachinery Inc.

Inventor： John H. Hunter ,  Ian J. MILLER ,  Shane BOISCLAIR ,  Edward S. WILLIAMS ,  Chris WIMPERIS ,  Vaz ZASTERA

IPC: G02B27/00 ,  G02B27/42 ,  G02B1/11

CPC classification number: G02B27/144 ,  G02B1/11 ,  G02B6/29358 ,  G02B27/0087 ,  G02B27/4205

Abstract: A virtual image phase array (VIPA) includes two parallel surfaces, a first highly-reflective surface with a highly-reflective coating, and a second partially-reflective surface. The first highly-reflective surface also requires an input zone with an anti-reflection coating, which abuts the highly-reflective coating, with a transition zone therebetween. Light enters the VIPA through the input zone, and reflects back and forth between the highly and partially reflective surfaces, gradually leaking out through the partially reflective surface. To minimize the transition zone and thereby minimize the input angle of incidence and maximize the number of reflections per unit of length, the substrate coated with the highly-reflective coating is subsequently polished at an acute angle resulting in the transition zone having the same sharp angle.

Abstract translation: 虚像相位阵列（VIPA）包括两个平行表面，具有高反射涂层的第一高反射表面和第二部分反射表面。 第一高反射表面还需要具有防反射涂层的输入区，该防反射涂层邻接高反射涂层，其间具有过渡区。 光通过输入区域进入VIPA，并在高度和部分反射的表面之间来回反射，并逐渐从部分反射的表面渗出。 为了使过渡区域最小化，从而最小化入射入射角度并使每单位长度的反射数量最大化，随后用高反射涂层涂覆的基底以锐角抛光，导致具有相同锐角的过渡区域 。