US 11,725,804 B2
Micro LED sheet with small spheres to enable digital beam shaping
Michel Cornelis Josephus Marie Vissenberg, Roermond (NL)
Assigned to SIGNIFY HOLDING B.V., Eindhoven (NL)
Appl. No. 17/599,984
Filed by SIGNIFY HOLDING B.V., Eindhoven (NL)
PCT Filed Apr. 6, 2020, PCT No. PCT/EP2020/059736
§ 371(c)(1), (2) Date Sep. 29, 2021,
PCT Pub. No. WO2020/207957, PCT Pub. Date Oct. 15, 2020.
Claims priority of application No. 19168159 (EP), filed on Apr. 9, 2019.
Prior Publication US 2022/0178517 A1, Jun. 9, 2022
Int. Cl. F21V 14/04 (2006.01); F21V 5/00 (2018.01); F21V 5/04 (2006.01); H05B 47/17 (2020.01); F21Y 115/10 (2016.01)
CPC F21V 14/04 (2013.01) [F21V 5/002 (2013.01); F21V 5/041 (2013.01); H05B 47/17 (2020.01); F21Y 2115/10 (2016.08)] 15 Claims
OG exemplary drawing
 
1. A lighting device comprising a first 2D arrangement of a plurality n of light sources and a second 2D arrangement of a plurality m of beam shaping elements configured downstream of the light sources, wherein:
the light sources are configured to generate light source light, wherein the n light sources comprises a plurality k of individually controllable subsets of light sources, wherein the beam shaping elements are configured to shape a beam of the light source light of then light sources, and wherein n≥16, m≥4, n/m>1, and k≤n/2;
upstream of each beam shaping element light sources are configured of different individually controllable subsets, and wherein two or more of the beam shaping elements have different spatial configurations relative to the light sources that are configured upstream of the respective beam shaping elements;
wherein the light sources comprise solid state light sources having first dimensions d1 selected from the group of a first length, a first width, a first diagonal length, and a first diameter, wherein the beam shaping elements comprise light transmissive elements having second dimensions d2 selected from the group of a second length, a second width, a second diagonal length, and a second diameter, wherein d2≥4*d1, and
wherein the beam shaping elements comprise spheres.