US RE50,569 E1
Asymmetric linear LED luminaire design for uniform illuminance and color
Fangxu Dong, Austin, TX (US); and An Mao, Austin, TX (US)
Assigned to Lutron Technology Company LLC, Coopersburg, PA (US)
Filed by Lutron Technology Company LLC, Coopersburg, PA (US)
Filed on Dec. 22, 2021, as Appl. No. 17/558,830.
Application 17/558,830 is a continuation of application No. 16/152,106, filed on Oct. 4, 2018, granted, now RE48873.
Application 16/152,106 is a reissue of application No. 14/516,818, filed on Oct. 17, 2014, granted, now 9,458,972, issued on Oct. 4, 2016.
Application 17/558,830 is a reissue of application No. 14/516,818, filed on Oct. 17, 2014, granted, now 9,458,972, issued on Oct. 4, 2016.
This patent is subject to a terminal disclaimer.
Int. Cl. F21V 9/00 (2018.01); F21K 9/60 (2016.01); F21K 99/00 (2016.01); F21S 8/00 (2006.01); F21S 8/04 (2006.01); F21V 5/00 (2018.01); F21V 5/04 (2006.01); F21V 7/00 (2006.01); F21V 7/06 (2006.01); F21V 7/22 (2018.01); F21V 7/28 (2018.01); F21Y 101/00 (2016.01); F21Y 103/10 (2016.01); F21Y 113/13 (2016.01); F21Y 115/10 (2016.01)
CPC F21V 5/045 (2013.01) [F21K 9/60 (2016.08); F21S 8/036 (2013.01); F21S 8/046 (2013.01); F21V 5/008 (2013.01); F21V 7/0008 (2013.01); F21V 7/0025 (2013.01); F21V 7/005 (2013.01); F21V 7/06 (2013.01); F21V 7/28 (2018.02); F21Y 2101/00 (2013.01); F21Y 2103/10 (2016.08); F21Y 2113/13 (2016.08); F21Y 2115/10 (2016.08)] 20 Claims
OG exemplary drawing
 
[ 11. A linear LED fixture, comprising:
a plurality of LED light sources arranged linearly on a substrate forming a first plane, each of the plurality of LED light sources having a respective spherical cap lens disposed thereupon, wherein the spherical cap lens includes a base radius that is less than the spherical radius;
a lens body;
an outside lens disposed along a second plane parallel to the first plane; and
a first reflective surface, that includes:
a plurality of parabolic surfaces, the plurality of parabolic surfaces to reflect a first portion of light emitted by the plurality of LED light sources through the lens body to provide a first non-collimated light source; and
a plurality of convex surfaces, at least some of the plurality of convex surfaces to reflect a second portion of light emitted by the plurality of LED light sources through the outside lens to provide a second non-collimated light source. ]