US 11,713,862 B2
Lighting systems including diffusers formed with additive manufacturing
Gary Trott, Greensboro, GA (US); David Ferrier, Denver, CO (US); Noel Collver, Canton, GA (US); and Dominic Large, Boulder, CO (US)
Assigned to ABL IP HOLDING LLC, Atlanta, GA (US)
Filed by ABL IP Holding LLC, Atlanta, GA (US)
Filed on Feb. 1, 2021, as Appl. No. 17/164,172.
Claims priority of provisional application 62/967,946, filed on Jan. 30, 2020.
Prior Publication US 2021/0239295 A1, Aug. 5, 2021
Int. Cl. F21V 3/02 (2006.01); F21V 17/16 (2006.01); F21V 17/00 (2006.01); F21V 17/12 (2006.01); B29D 11/00 (2006.01); B33Y 80/00 (2015.01)
CPC F21V 3/02 (2013.01) [B29D 11/00798 (2013.01); B33Y 80/00 (2014.12); F21V 17/002 (2013.01); F21V 17/12 (2013.01); F21V 17/164 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A lighting system comprising:
an upper housing, wherein the upper housing is configured to support a light engine; and
a monolithic diffuser formed by an additive manufacturing process and coupled to the upper housing, wherein the diffuser extends along a longitudinal axis from an upper portion through a central portion and to a lower portion and comprises a diffuser sidewall having an outer surface and an inner surface defining an internal cavity, wherein the central portion of the diffuser is configured to diffuse light emitted by the light engine into the internal cavity in directions radially away from the longitudinal axis, and wherein the upper portion is configured to directly couple to the upper housing with a tool-less connection in order to allow the diffuser to be coupled to and uncoupled from the upper housing by rotating the diffuser in a direction around the longitudinal axis,
wherein the diffuser sidewall comprises visual artifacts formed as byproducts of the additive manufacturing process, wherein the visual artifacts are visible when light passes through the diffuser.