公开(公告)号：EP0714348A4

公开(公告)日：1998-05-06

申请号：EP94916494

申请日：1994-02-25

申请人： PHYSICAL OPTICS CORP

发明人： PETERSEN JOEL ,  LERNER JEREMY

IPC分类号： B29D11/00 ,  G02B5/02 ,  G02B5/32 ,  G02B19/00 ,  G02F1/1335 ,  G02F1/13357 ,  G03F7/00 ,  G03H1/02 ,  G03H1/04 ,  G03H1/18 ,  G03H1/20 ,  G03F7/04

CPC分类号： G02B5/0252 ,  G02B5/0268 ,  G02B5/0278 ,  G02B5/0284 ,  G02B6/0008 ,  G02B6/06 ,  G02F1/133606 ,  G02F1/133611 ,  G03F7/0005 ,  Y10S362/80

摘要： A light source destructuring and shaping device (6) which both homogenizes and imparts predetermined directionality to light rays emanating from a light source (7) is disclosed. The device comprises a micro-sculpted surface structure which controls the direction in which light propagates after reflection from, or transmission through, the device. The sculpted surface structure also homogenizes light propagating through it with predetermined directionality. The device may be used in any application which requires homogenation of light and which would benefit from being able to impart directionality to light waves propagating from a light source. Applications include existing diffuser applications and applications where it is not practical to use conventional diffusers. The homogenizing and shaping device achieves these with high transmission or reflection efficiency and reduced side lobes.

摘要翻译： 一种用于入射光的均质器，包括：一片可压纹材料，其包括一个微雕刻表面浮雕结构，其（i）控制光传播的方向和（ii）以方向性均匀化光，已经通过复制在可压印片 提供另一种微雕刻表面结构，其中（i）控制光传播的方向和（ii）以方向性均匀化光，另一个微雕刻表面结构已经在具有折射率的光敏介质中形成：（a） 使用相干光在感光介质中产生随机，无序和非平面斑点，相干光已经通过全息漫射器扩散，以便限定光敏介质的折射率的非不连续和平滑变化的变化，平滑 变化的变化将准直光散射成具有平滑亮度变化的受控图案; 和（b）显影光敏介质。 从均质器入射并引导的光被引导到输出区域，均化器控制从均化器发出的光的方向到输出区域，以便相对于输出区域外的区域增加输出区域的亮度 区。