Lighting device with pump light source and phosphor arrangement
AssigneeOSRAM GmbH
InventorHenning Rehn
Life of this patent
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Abstract
In various embodiments, a lighting device is provided. The lighting device may include: a pump light source; a phosphor arrangement; and a light control element arranged between the pump light source and the phosphor arrangement; wherein the light control element is configured to split the pump light beam into a reflected part and a transmitted part and for controlling the ratio between reflected part and transmitted part; and wherein the phosphor arrangement includes at least one phosphor which can be irradiated with the reflected part and/or transmitted part of the pump light of the pump light source and emits said pump light again at least partly in a wavelength-converted fashion.
Claims15
A lighting device, comprising:
- a pump light source;
- a phosphor arrangement;
- and
- a light control element arranged between the pump light source and the phosphor arrangement;
- wherein the light control element is configured to split the pump light beam into a reflected part and a transmitted part and for controlling the ratio between reflected part and transmitted part;
- and
- wherein the phosphor arrangement comprises at least one phosphor which can be irradiated with at least one of the reflected part and transmitted part of the pump light of the pump light source and emits said pump light again at least partly in a wavelength-converted fashion.
A method for operating a lighting device,
- the lighting device comprising:
- a pump light source;
- a phosphor arrangement;
- and
- a light control element arranged between the pump light source and the phosphor arrangement;
- wherein the light control element is configured to split the pump light beam into a reflected part and a transmitted part and for controlling the ratio between reflected part and transmitted part;
- and
- wherein the phosphor arrangement comprises at least one phosphor which can be irradiated with the reflected part and/or transmitted part of the pump light of the pump light source and emits said pump light again at least partly in a wavelength-converted fashion;
- the method comprising:
- controlling a ratio of that part of the pump light which is reflected by the light control element to the transmitted part of the pump light.
Dependencies are inferred from the claim text.