Patent ID: 11920744
Assignee: SIGNIFY HOLDING B.V.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  G | IPC F

Claim 0:
1. A light generating system comprising a light generating device, a luminescent material layer, and optics, wherein:
the light generating device is configured to generate polarized laser radiation;
the luminescent material layer comprises a luminescent material configured in a light-receiving relationship with the light generating device and configured to convert at least part of the polarized laser radiation into luminescent material radiation;
the light generating system is configured to generate in an operational mode system light at least comprising the luminescent material radiation;
the optics comprise first optics and second optics; wherein the first optics are configured to change the polarization of the polarized laser radiation, and wherein the second optics have one or more of (i) a polarization dependent transmission and (ii) a polarization dependent reflection for the polarized laser radiation; and
the light generating device and the optics are configured such that, relative to an optical path of the luminescent material radiation emanating from the luminescent material, the second optics are configured downstream from the first optics and the luminescent material, wherein
the luminescent material layer and the light generating device are configured in the transmissive mode, wherein the first optics comprises a half-wave retarder configured to alter a first polarization into a second polarization, and wherein the second optics comprises a semi-transparent mirror transmissive for the second polarization and non-transmissive for the first polarization.