US 12,136,689 B2
Hybrid lens for controlled light distribution
Eric Tarsa, Goleta, CA (US); Kurt Wilcox, Libertyville, IL (US); Bin Hou, Schaumburg, IL (US); and Ted Lowes, Lompoc, CA (US)
Assigned to CREE LIGHTING USA LLC, Racine, WI (US)
Filed by CREE LIGHTING USA LLC, Racine, WI (US)
Filed on Apr. 7, 2022, as Appl. No. 17/715,441.
Application 17/715,441 is a continuation of application No. 17/343,030, filed on Jun. 9, 2021, granted, now 11,313,532.
Application 17/715,441 is a continuation of application No. 16/937,015, filed on Jul. 23, 2020, granted, now 11,393,961.
Application 17/343,030 is a continuation of application No. 16/831,369, filed on Mar. 26, 2020, granted, now 11,060,694, issued on Jul. 13, 2021.
Application 16/937,015 is a continuation of application No. 16/587,771, filed on Sep. 30, 2019, granted, now 10,804,448, issued on Oct. 13, 2020.
Application 16/831,369 is a continuation of application No. 15/483,199, filed on Apr. 10, 2017, granted, now 10,619,823, issued on Apr. 14, 2020.
Application 16/587,771 is a continuation of application No. 15/483,096, filed on Apr. 10, 2017, granted, now 10,468,566, issued on Nov. 5, 2019.
Prior Publication US 2022/0231207 A1, Jul. 21, 2022
Int. Cl. H01L 33/58 (2010.01); F21V 5/00 (2018.01); F21V 5/04 (2006.01); F21V 7/00 (2006.01); F21Y 115/10 (2016.01); G02B 19/00 (2006.01); H01L 25/075 (2006.01)
CPC H01L 33/58 (2013.01) [F21V 5/007 (2013.01); F21V 5/045 (2013.01); F21V 7/0091 (2013.01); G02B 19/0028 (2013.01); G02B 19/0061 (2013.01); G02B 19/0066 (2013.01); G02B 19/0071 (2013.01); F21Y 2115/10 (2016.08); H01L 25/0753 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An optic for distribution of light from a vertical light emitter axis, the optic comprising:
an outer surface having a convex profile extending continuously over a centerline of the optic; and
adjacent annular facets forming an interior cavity for covering or receiving the light emitter, the annular facets having an orientation relative to the vertical light emitter axis at one or more angles supporting redirection of light received from the light emitter by total internal reflection, the redirection dispersing the redirected light from the vertical light emitter axis, wherein the annular facets terminate at distinct sets of linearly extending stepwise discontinuities on an inner surface of the optic.