Jeffery R. Parker,Timothy A. McCollum,Robert M. Ezell
申请号：
US13893886
公开号：
US08845176B2
申请日:
2013.05.14
申请国别(地区):
US
年份:
2014
代理人:
摘要：
An optical assembly includes a light emitting panel having a light output surface with non-uniform directional light output distribution, and a light redirecting film located to receive light emitted from the light output surface. The light redirecting film has a pattern of individual non-prismatic optical elements of well defined shape with a total of two surfaces that intersect each other, the shape varying at different locations on the light redirecting film to redistribute the light received from the light output surface within a desired light ray angle distribution.
