Patent ID: 8133638
Filing Date: 2012-03-13
Classification: B29D,G02B

Abstract:
1. An all-polymer zero-order grating microstructure device that exhibits a zero-order reflection under white light, the device comprising a first polymer having a first refractive index of greater than 1.70 and configured as a microstructure embedded within a second polymer having a second refractive index wherein the microstructure is configured as a row of a plurality of separated and parallel grating lines being adjacently positioned to each other in a single plane, and each grating line is encapsulated and surrounded by said second polymer, each of the polymers of the first and second polymers at least translucent to white light with the proviso that the refractive index of the first polymer is at least 0.20 greater than the refractive index of the second polymer.