US 11,927,789 B2
Wide-area lighting fixture with segmented emission
Sergiy Vasylyev, Elk Grove, CA (US); and Mykola Masalitin, Sacramento, CA (US)
Assigned to S.V.V. TECHNOLOGY INNOVATIONS, INC., Sacramento, CA (US)
Filed by Sergiy Vasylyev, Elk Grove, CA (US); and Mykola Masalitin, Sacramento, CA (US)
Filed on Jul. 28, 2022, as Appl. No. 17/876,474.
Application 17/876,474 is a continuation of application No. 17/386,472, filed on Jul. 27, 2021, granted, now 11,402,564.
Application 17/386,472 is a continuation of application No. 16/780,872, filed on Feb. 3, 2020, granted, now 11,079,533, issued on Aug. 3, 2021.
Application 16/780,872 is a continuation of application No. 16/125,686, filed on Sep. 8, 2018, granted, now 10,591,660, issued on Mar. 17, 2020.
Claims priority of provisional application 62/556,415, filed on Sep. 9, 2017.
Prior Publication US 2022/0365269 A1, Nov. 17, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. F21V 8/00 (2006.01)
CPC G02B 6/0043 (2013.01) [G02B 6/0061 (2013.01); G02B 6/0065 (2013.01); G02B 6/0036 (2013.01); G02B 6/0063 (2013.01); G02B 6/0076 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A lighting fixture with segmented emission, comprising:
a sheet of an optically transmissive material having a first broad-area surface configured for light output, an opposing second broad-area surface extending parallel to the first broad-area surface and configured for light output, a first edge configured for light input, and an opposing second edge;
a first plurality of compact solid-state light sources optically coupled to the first edge;
a plurality of patterned light extraction areas distributed over an area of the sheet of the optically transmissive material and separated from one another and from the first edge by separation areas, each of the plurality of patterned light extraction areas comprising a two-dimensional pattern of light extraction features formed in or on the first or second broad-area surface; and
a housing encasing the first plurality of compact solid-state light sources and the first edge,
wherein a width of at least one of the separation areas is less than a length or width dimension of at least one of the plurality of patterned light extraction areas and at least 10 times greater than a prevalent spacing distance between the light extraction features within the at least one of the plurality of patterned light extraction areas, and wherein an areal density of the light extraction features at a first edge of a first one of the plurality of patterned light extraction areas is less than an areal density of the light extraction features at a central area of the first one of the plurality of patterned light extraction areas.