Lighting apparatus
AssigneeOSRAM GmbH
InventorsVolker Gäbler, Jan Oliver Drumm
Life of this patent
Estimating the term…
Abstract
A lighting apparatus including a light generating device and at least one light wavelength conversion element and also at least one light directing means is provided. The light generating device and the at least one light directing means are configured in such a way that linearly polarized light is generated and directed from different directions to the at least one light wavelength conversion element, such that the linearly polarized light impinges on a surface of the at least one light wavelength conversion element from different directions in each case at an angle of incidence which corresponds to a Brewster angle, wherein the polarization direction of the linearly polarized light is parallel to the plane of incidence thereof.
Claims13
A lighting apparatus comprising:
- a light generating device;
- at least one light wavelength conversion element;
- and
- at least one light directing means;
- wherein the at least one light wavelength conversion element, the light generating device, and the at least one light directing means are arranged on a common carrier;
- wherein a reflection surface of the at least one light directing means is inclined relative to a mounting surface of the common carrier in each case by an angle W that is calculated as W=45°+WB/2, wherein WB denotes a Brewster angle of the at least one light wavelength conversion element;
- wherein the light generating device and the at least one light directing means are configured in such a way that linearly polarized light is generated and directed from different directions to the at least one light wavelength conversion element, such that the linearly polarized light impinges on a surface of the at least one light wavelength conversion element from different directions in each case at an angle of incidence which corresponds to a Brewster angle, wherein the polarization direction of the linearly polarized light is parallel to the plane of incidence thereof.
A headlight comprising at least one lighting apparatus, the lighting apparatus comprising,
- a light generating device,
- at least one light wavelength conversion element, and
- at least one light directing means,
- wherein the at least one light wavelength conversion element, the light generating device, and the at least one light directing means are arranged on a common carrier;
- wherein a reflection surface of the at least one light directing means is inclined relative to a mounting surface of the common carrier in each case by an angle W that is calculated as W=45°+WB/2, wherein WB denotes a Brewster angle of the at least one light wavelength conversion element;
- wherein the light generating device and the at least one light directing means are configured in such a way that linearly polarized light is generated and directed from different directions to the at least one light wavelength conversion element, such that the linearly polarized light impinges on a surface of the at least one light wavelength conversion element from different directions in each case at an angle of incidence which corresponds to a Brewster angle, wherein the polarization direction of the linearly polarized light is parallel to the plane of incidence thereof.
A lighting apparatus comprising:
- a light generating device comprising a plurality of laser light sources;
- at least one light wavelength conversion element;
- and
- at least one light directing means assigned to each laser light source of the laser light sources;
- wherein the at least one light wavelength conversion element, the light generating device, and the at least one light directing means are arranged on a common carrier;
- wherein the plurality of laser light sources are arranged around the at least one light wavelength conversion element, along at least one fictitious closed mathematical curve, on a mounting surface of the common carrier, and where each laser light source of the plurality of laser light sources and the at least one light directing means assigned thereto are arranged collinearly with the at least one light wavelength conversion element;
- wherein the light generating device and the at least one light directing means are configured in such a way that linearly polarized light is generated and directed from different directions to the at least one light wavelength conversion element, such that the linearly polarized light impinges on a surface of the at least one light wavelength conversion element from different directions in each case at an angle of incidence which corresponds to a Brewster angle, wherein the polarization direction of the linearly polarized light is parallel to the plane of incidence thereof.
Dependencies are inferred from the claim text.