US 12,222,097 B2
Lighting system
Ludovicus Johannes Lambertus Haenen, Sint Oedenrode (NL); Olexandr Valentynovych Vdovin, Maarheeze (NL); Hugo Johan Cornelissen, Escharen (NL); and Martinus Petrus Joseph Peeters, Weert (NL)
Assigned to SIGNIFY HOLDING, B.V., Eindhoven (NL)
Appl. No. 18/691,230
Filed by SIGNIFY HOLDING B.V., Eindhoven (NL)
PCT Filed Sep. 12, 2022, PCT No. PCT/EP2022/075266
§ 371(c)(1), (2) Date Mar. 12, 2024,
PCT Pub. No. WO2023/041480, PCT Pub. Date Mar. 23, 2023.
Claims priority of application No. 21196589 (EP), filed on Sep. 14, 2021.
Prior Publication US 2024/0410547 A1, Dec. 12, 2024
Int. Cl. F21V 5/00 (2018.01); F21Y 105/12 (2016.01); F21Y 115/10 (2016.01); F21Y 115/30 (2016.01)
CPC F21V 5/007 (2013.01) [F21Y 2105/12 (2016.08); F21Y 2115/10 (2016.08); F21Y 2115/30 (2016.08)] 15 Claims
OG exemplary drawing
 
1. A lighting system configured for providing a beam of light having a predefined shape, wherein the lighting system comprises nF system sections, wherein nF≥2, wherein each system section comprises a light source array section, a collimator section, and a Koehler integrator section, wherein:
for each of the system sections applies:
the light source array section comprises a plurality of section light sources configured to provide light source light;
the Koehler integrator section comprises a section entrance face and a section exit face, wherein the section entrance face comprises a plurality of section entrance lenslets shaped according to an section entrance surface pattern, and wherein the section exit face comprises a plurality of section exit lenslets shaped according to a section exit surface pattern, and wherein the section entrance face is configured in a light receiving relationship with the plurality of section light sources via the collimator section;
each of the plurality of section light sources have a light emitting surface, wherein the light emitting surface has a first axis of elongation A1 and an aspect ratio RS, wherein RS>1;
each first axis of elongation A1 has an angle αA1 to an averaged first direction of the axes of elongation A1, wherein αA1≤5°;
the section entrance surface pattern comprises a section entrance tessellation of an entrance lenslet shape, wherein the entrance lenslet shape has a rotational symmetry of order nA, wherein nA≥2, wherein the entrance lenslet shape has an entrance aspect ratio R1, and wherein R1≤RS;
the section exit surface pattern comprises a section exit tessellation of an exit lenslet shape, wherein the exit lenslet shape approximates the light emitting surface by being superimposable such that an intersection between the exit lenslet shape and the light emitting surface covers at least 90% of the exit lenslet shape and at least 90% of the light emitting surface, wherein the exit lenslet shape has an exit aspect ratio R2, wherein R2 is selected from the range of 0.8*RS-1.2*RS; and
at least two system sections of the system sections are rotated relative to another for (360°/nA)k+(360/*nA)*nI for improving the roundedness of the beam of light, wherein nI is a non-negative integer, and wherein k is selected from the range of 2-12, and
wherein the aspect ratio RS of a shape is defined as the ratio of the longest side to the smallest side of the smallest rectangle realization encompassing the shape.