US 12,111,026 B2
Lighting device for illuminating a surface
Bartel Marinus Van De Sluis, Eindhoven (NL); Michel Cornelis Josephus Marie Vissenberg, Roermond (NL); Marcellinus Petrus Carolus Michael Krijn, Eindhoven (NL); and Leendert Teunis Rozendaal, Valkenswaard (NL)
Assigned to SIGNIFY HOLDING, B.V., Eindhoven (NL)
Appl. No. 17/768,733
Filed by SIGNIFY HOLDING B.V., Eindhoven (NL)
PCT Filed Oct. 16, 2020, PCT No. PCT/EP2020/079152
§ 371(c)(1), (2) Date Apr. 13, 2022,
PCT Pub. No. WO2021/074358, PCT Pub. Date Apr. 22, 2021.
Claims priority of application No. 19203984 (EP), filed on Oct. 18, 2019.
Prior Publication US 2024/0142074 A1, May 2, 2024
Int. Cl. F21S 10/02 (2006.01); F21V 14/04 (2006.01); F21Y 103/10 (2016.01); F21Y 107/50 (2016.01); F21Y 113/10 (2016.01)
CPC F21S 10/026 (2013.01) [F21V 14/04 (2013.01); F21Y 2103/10 (2016.08); F21Y 2107/50 (2016.08); F21Y 2113/10 (2016.08)] 15 Claims
OG exemplary drawing
 
1. A lighting device for illuminating a surface, the lighting device comprising:
a first light source configured to emit a first light beam in a first direction, wherein the first light beam has a first spectral power distribution,
a second light source configured to emit a second light beam in a second direction that is not parallel to the first direction, wherein the second light beam has a second spectral power distribution and wherein the second spectral power distribution is different from the first spectral power distribution, and
a light-delimiting element adjustable relative to at least one of the first light source and the second light source,
wherein the light-delimiting element is configured to delimit the first light beam and the second light beam to thereby modify an area of overlap on the surface of the first light beam and the second light beam by forming a boundary of the light separating the first light beam and the second light beam, such that the first light source is configured to illuminate a first region of the surface, and the second light source is configured to illuminate a second region of the surface, the second region adjoining the first region.