CPC G02B 5/305 (2013.01) [C09J 7/29 (2018.01); C09J 201/02 (2013.01); B32B 2037/1253 (2013.01); B32B 2307/40 (2013.01); B32B 2307/42 (2013.01); B32B 2307/538 (2013.01); B32B 2457/20 (2013.01); B32B 2457/202 (2013.01); C09J 133/00 (2013.01); C09J 133/08 (2013.01); C09J 2301/302 (2020.08); C09K 2323/03 (2020.08); C09K 2323/031 (2020.08); C09K 2323/05 (2020.08); C09K 2323/057 (2020.08); C09K 2323/06 (2020.08); C09K 2323/061 (2020.08)] | 6 Claims |
1. An optical body, comprising:
a birefringent multilayer optical film;
a continuous adhesive layer disposed on a first major surface of the birefringent multilayer optical film; and
a glass or plastic substrate layer attached to the multilayer optical film via the continuous adhesive layer;
wherein the continuous adhesive layer has a thickness less than 20 micrometers; and
wherein the optical body, measured through the glass or plastic substrate layer with an interferometer, has a peak-to-valley surface roughness of less than 50 nm.
|