US 12,078,541 B2
Optical device with a folded optical path
William D. Houck, Santa Rosa, CA (US); and Steven Saxe, Santa Rosa, CA (US)
Assigned to VIAVI Solutions Inc., Chandler, AZ (US)
Filed by VIAVI Solutions Inc., Chandler, AZ (US)
Filed on Jul. 21, 2023, as Appl. No. 18/356,589.
Application 18/356,589 is a continuation of application No. 17/123,691, filed on Dec. 16, 2020, granted, now 11,740,131.
Prior Publication US 2024/0019307 A1, Jan. 18, 2024
Int. Cl. G01J 3/50 (2006.01); G02B 5/20 (2006.01); G02B 6/42 (2006.01); G02B 17/02 (2006.01)
CPC G01J 3/50 (2013.01) [G02B 6/4215 (2013.01); G02B 17/023 (2013.01); G02B 5/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical device, comprising:
an aperture;
a diffusive optical element positioned on an exterior surface of the optical device and disposed over the aperture;
an optical filter; and
an optical conduit disposed between the aperture and the optical filter,
wherein a width of a first end of the optical conduit corresponds to a width of the diffusive optical element,
wherein a width of a second end of the optical conduit corresponds to a width of the optical filter, and
wherein a folded optical path traverses an internal region of the optical conduit.