US 12,222,494 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 Dec. 22, 2023, as Appl. No. 18/394,324.
Application 18/394,324 is a continuation of application No. 18/117,139, filed on Mar. 3, 2023, granted, now 11,899,202.
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, issued on Sep. 5, 2023.
Claims priority of provisional application 63/356,130, filed on Jun. 28, 2022.
Prior Publication US 2024/0126072 A1, Apr. 18, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 27/00 (2006.01); F21V 7/04 (2006.01); G02B 3/00 (2006.01); G02B 5/00 (2006.01); G02B 7/00 (2021.01); 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)] 20 Claims
OG exemplary drawing
 
1. An optical assembly comprising:
a base comprising a first surface, a second surface opposite the first surface, and at least one aperture extending through the base from the first surface to the second surface;
at least one lens coupled to the base, the at least one lens having a lens central axis perpendicular to a plane of the base, wherein the at least one lens is attached to the second surface of the base and extends at least partially through the at least one aperture so as to be at least partially exposed on the first surface of the base;
at least one light emitting diode (LED) positioned to emit light into the at least one lens, the at least one LED having an optical axis; and
at least one curved reflector disposed adjacent to the at least one LED such that the at least one LED is at a first side of the at least one curved reflector,
wherein:
the at least one curved 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 at least one curved reflector extending from the base over the at least one of the LEDs such that the second end of the at least one curved reflector extends beyond the optical axis of the at least one LED; and
the at least one curved reflector characterized by at least one of:
a first angle between a first line and a plane of the base, the first line joining a distal end of the at least one lens furthest laterally from the first end of the at least one curved reflector and the second end of the at least one curved reflector located over the lens; and
a second angle between a second line and the plane of the base, the second line joining a point on the at least one lens located at the optical axis of the LED and the second end of the at least one curved reflector located over the lens,
wherein the first angle is in a range between 60° and 90°, and the second angle is in a range between 70° and 130°.