US 12,332,464 B2
Optical device with at least one infrared reflective material
Johannes P. Seydel, Petaluma, CA (US); John Edward Book, Santa Rosa, CA (US); Alberto Argoitia, Santa Rosa, CA (US); Kangning Liang, Santa Rosa, CA (US); and Jaroslaw Zieba, Santa Rosa, CA (US)
Assigned to VIAVI SOLUTIONS INC., Chandler, AZ (US)
Filed by VIAVI SOLUTIONS INC., San Jose, CA (US)
Filed on Jan. 26, 2021, as Appl. No. 17/158,865.
Prior Publication US 2022/0236464 A1, Jul. 28, 2022
Int. Cl. G02B 5/20 (2006.01); B29D 11/00 (2006.01); G02B 5/02 (2006.01); G02B 5/26 (2006.01)
CPC G02B 5/208 (2013.01) [B29D 11/0074 (2013.01); G02B 5/0242 (2013.01); G02B 5/26 (2013.01); G02B 2207/101 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An optical device, comprising:
a first selective light modulator layer comprising infrared transparent particles;
a microstructured layer including a plurality of beads; and
an infrared reflective layer in a continuous form between the first selective light modulator layer and the microstructured layer,
wherein the infrared reflective layer is coated on the beads and is configured to conform to the microstructured layer to provide Lambertian reflection of infrared light; and wherein the beads are between the first selective light modulator layer and a second selective light modulator layer.