US 12,092,836 B2
Optical element and optical system
Tasso R. M. Sales, Rochester, NY (US)
Assigned to VIAVI SOLUTIONS INC., Chandler, AZ (US)
Filed by VIAVI SOLUTIONS INC., San Jose, CA (US)
Filed on Oct. 23, 2019, as Appl. No. 16/661,620.
Claims priority of provisional application 62/751,311, filed on Oct. 26, 2018.
Prior Publication US 2020/0133012 A1, Apr. 30, 2020
Int. Cl. G02B 27/09 (2006.01); G02B 5/02 (2006.01)
CPC G02B 27/0927 (2013.01) [G02B 5/0215 (2013.01); G02B 27/0916 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An optical element comprising:
a body of optical material; and
a plurality of microstructures along a surface of the body, wherein each microstructure of the plurality of microstructures has a sag profile; and
wherein each microstructure is a modified geometric shape with four concave outer boundaries if viewed from an overhead view of the surface of the body from a point directly above the microstructure, wherein each of the four concave outer boundaries inwardly curves toward a center of the microstructure;
wherein the plurality of microstructures are randomly distributed along the surface.