A LIGHT EMITTING DEVICE
A light emitting device (1) comprising at least one light source (2) adapted for, in operation, emitting first light (13) with a first spectral distribution, a light guide (4) made of a luminescent material and comprising a light input surface (41) and a light exit surface (42) extending in an angle...
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Format | Patent |
Language | English French German |
Published |
27.07.2016
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Subjects | |
Online Access | Get full text |
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Abstract | A light emitting device (1) comprising at least one light source (2) adapted for, in operation, emitting first light (13) with a first spectral distribution, a light guide (4) made of a luminescent material and comprising a light input surface (41) and a light exit surface (42) extending in an angle different from zero to one another, the light guide further comprising a first further surface (46) extending parallel to and arranged opposite to the light exit surface, wherein the light guide is adapted for receiving the first light (13) with the first spectral distribution at the light input surface, converting at least a part of the first light with the first spectral distribution to second light (14) with a second spectral distribution, guiding the second light with the second spectral distribution to the light exit surface and coupling the second light with the second spectral distribution out of the light exit surface. The light emitting device further comprises a phosphor element (77) arranged adjacent to the first further surface and a reflective element (76) arranged adjacent the phosphor element opposite to the first further surface (46). The phosphor element is adapted for converting light incident from the light guide to third light (17) with a third spectral distribution and the light guide (40) is furthermore adapted for receiving the third light (17) with the third spectral distribution at the first further surface (46), guiding the third light (46) with the third spectral distribution to the light exit surface (42) and coupling the third light with the third spectral distribution out of the light exit surface. |
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AbstractList | A light emitting device (1) comprising at least one light source (2) adapted for, in operation, emitting first light (13) with a first spectral distribution, a light guide (4) made of a luminescent material and comprising a light input surface (41) and a light exit surface (42) extending in an angle different from zero to one another, the light guide further comprising a first further surface (46) extending parallel to and arranged opposite to the light exit surface, wherein the light guide is adapted for receiving the first light (13) with the first spectral distribution at the light input surface, converting at least a part of the first light with the first spectral distribution to second light (14) with a second spectral distribution, guiding the second light with the second spectral distribution to the light exit surface and coupling the second light with the second spectral distribution out of the light exit surface. The light emitting device further comprises a phosphor element (77) arranged adjacent to the first further surface and a reflective element (76) arranged adjacent the phosphor element opposite to the first further surface (46). The phosphor element is adapted for converting light incident from the light guide to third light (17) with a third spectral distribution and the light guide (40) is furthermore adapted for receiving the third light (17) with the third spectral distribution at the first further surface (46), guiding the third light (46) with the third spectral distribution to the light exit surface (42) and coupling the third light with the third spectral distribution out of the light exit surface. |
Author | DE BOER, Dirk Kornelis Gerhardus BIJLSMA, Albert HANNEN, Gerardus Everardus Marie EGGINK, Hendrik Jan VAN BOMMEL, Ties GRUHLKE, Stefan Willi Julius HIKMET, Rifat Ata Mustafa CHESTAKOV, Dmitri Anatolievich |
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DocumentTitleAlternate | DISPOSITIF ÉMETTEUR DE LUMIÈRE LICHTEMITTIERENDE VORRICHTUNG |
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Snippet | A light emitting device (1) comprising at least one light source (2) adapted for, in operation, emitting first light (13) with a first spectral distribution, a... |
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SubjectTerms | ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM BASIC ELECTRIC ELEMENTS BLASTING CINEMATOGRAPHY ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY ELECTROGRAPHY FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING HOLOGRAPHY LIGHT SOURCES NOT OTHERWISE PROVIDED FOR LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATINGELEMENTS LIGHTING MECHANICAL ENGINEERING NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE NON-PORTABLE LIGHTING DEVICES OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAPHY PHYSICS SEMICONDUCTOR DEVICES STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR SYSTEMS THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS |
Title | A LIGHT EMITTING DEVICE |
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