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US 8,475,025 B2Granted
Light-emitting device
AssigneeOSRAM Opto Semiconductors GmbH
InventorsHubert Ott, Alfred Lell, Uwe Strauss, Volker Haerle, Norbert Stath
Life of this patent
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Abstract
One embodiment of the invention proposes a light-emitting device comprising a radiation source for the emission of a radiation having at least a first wavelength, and an elongated, curved light-guiding body, into which the radiation emitted by the radiation source is coupled and which couples out light at an angle with respect to its longitudinal axis on account of the coupled-in radiation having the first wavelength.
Claims23
A light-emitting device comprising:
- a radiation source for emission of radiation having at least a first wavelength;
- and
- an elongated, curved light-guiding body, wherein the radiation emitted by the radiation source is coupled into the light-guiding body and wherein the light-guiding body couples out light at an angle with respect to a longitudinal axis of the light-guiding body,
- an optical waveguide, the radiation having the first wavelength being coupled into the light-guiding body via the optical waveguide;
- and
- a detection device that can detect damage to the optical waveguide and/or the light-guiding body.
3 more elements
An illumination device comprising:
- a radiation source for emission of radiation having at least a first wavelength;
- an elongated, curved light-guiding body, wherein the radiation emitted by the radiation source is coupled into the light-guiding body and wherein the light-guiding body couples out light at an angle with respect to its longitudinal axis;
- a housing unit enclosing at least the light-guiding body such that the light coupled out of the light-guiding body can serve as an illumination source;
- an optical waveguide, having the first wavelength being coupled into the light-guiding body via the optical waveguide;
- and
- a detection device that can detect damage to the optical waveguide and/or the light-guiding body.
3 more elements
A display comprising:
- a radiation source for emission of radiation having at least a first wavelength;
- an elongated, curved light-guiding body, wherein the radiation emitted by the radiation source is coupled into the light-guiding body and wherein the light-guiding body couples out light at an angle with respect to its longitudinal axis;
- an optical waveguide, having the first wavelength being coupled into the light-guiding body via the optical waveguide;
- a detection device that can detect damage to the optical waveguide and/or the light-guiding body;
- and
- a screen area located adjacent the light-guiding body.
3 more elements
A light-emitting device comprising:
- a radiation source for emission of radiation having at least a first wavelength;
- an elongated, curved light-guiding body, wherein the radiation emitted by the radiation source is coupled into the light-guiding body and wherein the light-guiding body couples out light at an angle with respect to a longitudinal axis of the light-guiding body;
- and
- a detection device that can detect damage to the light-guiding body.
1 more element
Dependencies are inferred from the claim text.