IPC分类号：
F21V8/00 | F21K9/60 | F21K9/64
国民经济行业分类号：
C4350 | C3874 | C4090 | C3879
当前申请(专利权)人：
SIGNIFY HOLDING B.V.
原始申请(专利权)人：
PHILIPS LIGHTING HOLDING B.V.
发明人：
HIKMET, RIFAT, ATA, MUSTAFA | VAN BOMMEL, TIES | DE BOER, DIRK, KORNELIS, GERHARDUS
代理人：
MALLENS, ERIK, PETRUS, JOHANNES ET AL.
摘要：
The invention provides a lighting device (1) comprising (i) a plurality of sets (310) of each one or more light sources (10) configured to provide light source light (11), and (ii) a plurality of luminescent elements (5), each luminescent element (5) comprising an elongated luminescent body (100) having a radiation input face (111) for receipt of the light source light (11), each luminescent element (5) comprising a luminescent material (120) for conversion of at least part of the light source light (11) into luminescent material light (8), and each luminescent element (5) have an luminescent element exit window (12) for the luminescent material light (8); wherein the luminescent elements (5) are configured in a configuration wherein an average distance (d1) between neighboring luminescent bodies (100) is larger than a shortest luminescent element exit window distance (d2) between the neighboring luminescent element exit windows (12), thereby defining an interspace (320) between the neighboring luminescent bodies (100).
技术问题语段：
The technical problem addressed in this patent is to provide a lighting device with a higher light concentration factor and/or a larger surface from which light may escape, by using a pixelated luminescent rod configuration with multiple light sources and luminescent elements. This configuration allows for pixelated light and avoids cross-talks, while also providing a heat sink for each light source for efficient heat dissipation.
技术功效语段：
The invention is a lighting device that uses a concentrator to convert short wavelength light into longer wavelengths in a high refractive index material. The device has multiple light sources and luminescent elements arranged in a tapered configuration to provide high brightness light. The technical effect of the invention is to provide a lighting device with even higher light concentration and a larger surface from which light may escape.
权利要求：
CLAIMS:
1. A lighting device (1) comprising (i) a plurality of sets (310) of each one or more light sources (10) configured to provide light source light (11), and (ii) a plurality of luminescent elements (5), each luminescent element (5) comprising an elongated luminescent body (100) having a radiation input face (1 11) for receipt of the light source light (11), a first face (141) and a second face (142), wherein the distance between the first face (141) and the second face (142) defines a length (L) of the elongated luminescent body (100) and the radiation input face (11 1) extending between the first face (141) and the second face (142), wherein each luminescent element (5) comprising a luminescent material (120) for conversion of at least part of the light source light (1 1) into luminescent material light (8), and each luminescent element (5) having a luminescent element exit window (12) for escape of the luminescent material light (8) from the luminescent element (5), the second face (142) comprising said luminescent exit window (12); wherein the luminescent elements (5) are configured in a tapered configuration wherein a shortest distance (dl) between the first faces (141) of neighboring luminescent bodies (100) is larger than a shortest luminescent element exit window distance (d2) between the neighboring luminescent element exit windows (12), thereby defining an interspace (320) between the neighboring luminescent bodies (100), and wherein the luminescent element exit windows (12) of the plurality of luminescent elements (5) are configured in a matrix. 2. The lighting device (1) according to claim 1, further comprising one or more heat sinks (330), wherein the one or more heat sinks (330) are at least partly configured in one or more interspaces (320).
3. The lighting device (1) according to claim 2, wherein one or more sets (310) of light sources (10) are in physical contact with one or more of the heat sinks (330).
4. The lighting device (1) according to any one of the preceding claims 2-3, wherein the one or more heat sinks (330) are wedge shaped with wedge faces (331) facing neighboring luminescent bodies (100).
5. The lighting device (1) according to any one of the preceding claims, wherein neighboring luminescent bodies (100) are configured under a mutual angle selected from the range of 5-60°.
6. The lighting device (1) according to any one of the preceding claims, comprising at least four luminescent elements (5), configured with the luminescent element exit window (12) in an nxm matrix, wherein n>2 and wherein m>2. 7. The lighting device (1) according to any one of the preceding claims, wherein the luminescent element exit windows (12) are configured in a plane.
8. The lighting device (1) according to any one of the preceding claims, wherein one or more luminescent elements (5) further comprise one or more optical extension elements (1 113) configured downstream of a radiation exit window (1 12) of the luminescent body (100), and wherein the one or more optical extension element (11 13) comprises the one or more luminescent element exit windows (12).
9. The lighting device (1) according to any one of the preceding claims, wherein the luminescent element exit windows (12) have identical sizes.
10. The lighting device (1) according to any one of the preceding claims, wherein the elongated luminescent bodies (100) have radiation exit windows (1 12), wherein one or more of the luminescent element exit windows (12) comprises one or more of the radiation exit windows (1 12) or wherein one or more luminescent element exit windows (12) are configured in a light receiving relationship with one or more radiation exit windows (112).
11. The lighting device (1) according to any one of the preceding claims, further comprising an optical element (24) configured downstream of one or more luminescent element exit windows (12), wherein the optical element (24) is configured for one or more of (i) facilitating extraction of luminescent material light (8) via the one or more luminescent element exit windows (12) to the optical element (24), and (ii) beam shaping luminescent material light (8) emanating from the one or more luminescent element exit windows (12).
12. The lighting device (1) according to claim 11, wherein a single optical element (24) is configured downstream of all luminescent element exit windows (12).
13. The lighting device (1) according to any one of the preceding claims 1 1-12, wherein the optical element (24) is selected from the group of a collimator and a lens.
14. A lighting system (1000) comprising one or more lighting devices (1) according to any one of the preceding claims, and a control system , wherein two or more luminescent element (5) are configured to provide luminescent material light (120) with different spectral distributions, and wherein the control system is configured to control one or more sets (310) of light sources (10)
15. A projection system (1000) or a luminaire (1 100) comprising the lighting device (1) according to any one of the preceding claims 1-13 or the lighting system according to claim 14.