US 10,274,161 B2
LED spot with customizable beam shape, beam color and color uniformity
Michel Cornelis Josephus Marie Vissenberg, Roermond (NL); Elise Claude Valentine Talgorn, Eindhoven (NL); and Manuela Lunz, Waalre (NL)
Assigned to SIGNIFY HOLDING B.V., Eindhoven (NL)
Appl. No. 15/741,348
Filed by PHILIPS LIGHTING HOLDING B.V., Eindhoven (NL)
PCT Filed Jun. 22, 2016, PCT No. PCT/EP2016/064412
§ 371(c)(1), (2) Date Jan. 2, 2018,
PCT Pub. No. WO2017/001259, PCT Pub. Date Jan. 5, 2017.
Claims priority of application No. 15174454 (EP), filed on Jun. 30, 2015.
Prior Publication US 2018/0195684 A1, Jul. 12, 2018
Int. Cl. F21V 3/00 (2015.01); F21V 7/00 (2006.01); F21V 3/04 (2018.01); F21V 9/00 (2018.01); F21V 11/16 (2006.01); F21V 13/10 (2006.01); F21V 13/14 (2006.01); F21K 9/233 (2016.01); B33Y 80/00 (2015.01); F21V 5/04 (2006.01); F21Y 101/00 (2016.01); F21Y 115/00 (2016.01)
CPC F21V 7/0091 (2013.01) [B33Y 80/00 (2014.12); F21K 9/233 (2016.08); F21V 3/04 (2013.01); F21V 9/00 (2013.01); F21V 11/16 (2013.01); F21V 13/10 (2013.01); F21V 13/14 (2013.01); F21V 5/045 (2013.01); F21Y 2101/00 (2013.01); F21Y 2115/00 (2016.08)] 11 Claims
OG exemplary drawing
 
1. A lighting unit comprising a lighting device, wherein the lighting device comprises a light source configured to provide light source light and beam shaping optics configured to shape the light source light into a lighting device beam, wherein the lighting device comprises a window comprising an upstream face directed to the light source and a downstream face, wherein the lighting unit further comprises a beam modifier configured adjacent to the window and configured to intercept at least part of said lighting device beam, wherein the lighting device and the beam modifier are configured to modify said lighting device beam to provide a lighting unit beam downstream from said beam modifier, wherein the beam modifier comprises a printed beam modifying element, and wherein the beam modifying element is configured to intercept up to 80% of a cross-section of said lighting device beam,
wherein the beam modifier comprises a 3D printed beam modifying element and is configured to modify the lighting device beam by one or more of polarization filtering and spectral converting the lighting device beam, and
wherein the beam shaping optics comprises one or more of a lens, a TIR lens, a Fresnel lens, and a reflector.