Patent ID: 7916390
Filing Date: 2011-03-29
Classification: G02B,G03F,Y10T

Abstract:
1. A monolithic polarizing controlled angle diffuser, comprising: a system having at least two parallel, continuous planar surfaces: a controlled angle diffuser pattern for providing an angular distribution at an illumination plane, the controlled angle diffuser pattern being on one of the at least two parallel continuous surfaces, the controlled angle diffuser pattern including at least two controlled angle diffuser elements integral with the one of the at least two continuous surfaces, each controlled diffuser element outputting different angular distributions, the at least two controlled angle diffuser elements defining a monolithic controlled angle diffuser pattern; and a polarizing pattern on one of the at least two parallel continuous surfaces, the polarizing pattern including at least two polarizing elements, each polarizing element corresponding to a respective controlled angle diffuser element, the at least two polarizing elements outputting polarizations rotated with respect to one another, the at least two polarizing elements defining a monolithic polarizing pattern.