US 12,078,824 B2
Diffusive optical device
Kangning Liang, Santa Rosa, CA (US); Jaroslaw Zieba, Santa Rosa, CA (US); and Tasso Sales, Pittsford, NY (US)
Assigned to VIAVI Solutions Inc., Chandler, AZ (US)
Filed by VIAVI Solutions Inc., San Jose, CA (US)
Filed on Mar. 10, 2021, as Appl. No. 17/197,799.
Prior Publication US 2022/0291426 A1, Sep. 15, 2022
Int. Cl. G02B 5/02 (2006.01); G02B 1/04 (2006.01)
CPC G02B 5/021 (2013.01) [G02B 1/04 (2013.01); G02B 5/0273 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A diffusive optical device, comprising:
a glass substrate;
a first polymer layer disposed on a first surface of the glass substrate,
wherein:
the first polymer layer includes a plurality of adhesion promoter molecules, and
the plurality of adhesion promoter molecules include at least one adhesion promoter molecule that includes a molecularly flexible spacer; and
a second polymer layer disposed on the first polymer layer,
wherein:
a refractive index of the first polymer layer is different than a refractive index of the second polymer layer, and
a non-uniform surface of the second polymer layer is configured to interface with free space.