Patent ID: 11946639
Assignee: SIGNIFY HOLDING B.V.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A lighting device, comprising
an enclosure with a first axis, A, and a second axis B, oriented perpendicular to each other, wherein the enclosure comprises a back surface and a front surface separated from each other in a direction parallel to the second axis, B, by a plurality of partitioning elements (130a-f) to form within the enclosure a plurality of sub-spaces arranged next to each other in a direction parallel to the first axis, A, wherein each sub-space comprises a first reflective inner surface and a second reflective inner surface, for all sub-spaces the second reflective inner surface being located opposite to the first reflective inner surface in a same direction parallel to the first axis, A,
wherein each sub-space further comprises a light source arranged to emit light towards the front surface with a light output, the light output comprising light beams in a blue wavelength range of 400-490 nm and in a non-blue wavelength range of 490-700 nm, a first part of the light output being incident on the first reflective inner surface of the sub-space and a second part of the light output being incident on the second reflective inner surface of the sub-space,
wherein, for light within the blue wavelength range, the first reflective inner surface has a first blue reflectance and the second reflective inner surface has a second blue reflectance, the first blue reflectance being more than 20% and the second blue reflectance being less than 20%.