US 11,899,202 B2
Extreme cutoff beam control optics
Qi Ai, Peachtree City, GA (US); Jie Chen, Snellville, GA (US); and Craig Eugene Marquardt, Covington, GA (US)
Assigned to ABL IP Holding LLC, Atlanta, GA (US)
Filed by ABL IP Holding LLC, Atlanta, GA (US)
Filed on Mar. 3, 2023, as Appl. No. 18/117,139.
Application 18/117,139 is a continuation in part of application No. 17/686,799, filed on Mar. 4, 2022, granted, now 11,746,989.
Claims priority of provisional application 63/356,130, filed on Jun. 28, 2022.
Prior Publication US 2023/0280585 A1, Sep. 7, 2023
Int. Cl. G02B 27/00 (2006.01); G02B 5/00 (2006.01); F21V 7/04 (2006.01); G02B 7/00 (2021.01); G02B 3/00 (2006.01); F21Y 115/10 (2016.01)
CPC G02B 27/0012 (2013.01) [F21V 7/04 (2013.01); G02B 3/0037 (2013.01); G02B 5/003 (2013.01); G02B 7/003 (2013.01); F21Y 2115/10 (2016.08)] 23 Claims
OG exemplary drawing
 
1. An optical assembly comprising:
a base comprising a first surface, a second surface opposite the first surface, and a plurality of apertures extending through the base from the first surface to the second surface;
a plurality of lenses coupled to the base, each of the lenses having a lens central axis perpendicular to a plane of the base, wherein each lens is attached to the second surface of the base and extends at least partially through a respective one of the plurality of apertures so as to be at least partially exposed on the first surface of the base;
a plurality of light emitting diodes (LEDs), each of the LEDs positioned to emit light into a respective one of the plurality of lenses, each of the LEDs having an optical axis; and
at least one reflector disposed adjacent to at least one of the LEDs such that the at least one of the LEDs is at a first side of the at least one reflector, wherein:
the at least one reflector comprises a first end proximate the base, a second end opposite the first end, and a reflective surface extending at least partially between the first end and the second end, the reflector extending from the base over the at least one of the LEDs such that the second end of the reflector extends beyond the optical axis of that at least one of the LEDs; and
the reflective surface is configured to direct light emitted by the at least one of the LEDs toward the first side and prevent the emitted light from leaking toward a second side of the at least one reflector that is opposite the first side,
wherein the optical axis of the at least one of the LEDs is laterally offset from the lens central axis of the respective one of the lenses in a direction toward the first end of the reflector so as to be located more proximate the first end of the reflector than the lens central axis.