IPC分类号：
F21K9/233 | F21V7/00 | F21V29/505 | F21V29/70 | F21V7/04 | F21V7/06 | F21Y103/30 | F21Y107/10 | F21Y115/10
国民经济行业分类号：
C3545 | C3871 | C3976
当前申请(专利权)人：
SIGNIFY HOLDING B.V.
原始申请(专利权)人：
SIGNIFY HOLDING B.V.
当前申请(专利权)人地址：
High Tech Campus 48,5656 AE Eindhoven NL
发明人：
HEIJMANS, MARTINUS, ARNOLDUS, CORNELIS | BURKE, OLIVER, FRANCIS
代理人：
VAN EEUWIJK, ALEXANDER, HENRICUS, WALTHERUS ET AL.
摘要：
The invention provides a light generating system (1000) comprising a housing (500) and a light generating device (100); wherein the light generating device (100) comprises an elongated support (150) and a plurality of light sources (10), wherein the light sources (10) comprise solid state light sources supported by the elongated support (150); wherein the light sources are configured to generate light source light (11); wherein the housing (500) is thermally conductive; wherein the housing (500) comprises a reflective inner surface (510) comprising a staircase profile (520) with n stairs (521), wherein n≥2; wherein the n stairs have a stair length L1; wherein the reflective inner surface (510) is reflective for the light source light (11); wherein the light generating device (100) is mounted on the staircase profile (520) over at least part of the stair length L1 and configured in thermal contact with the housing (500).
技术功效语段：
The technical efficacy of the patent text is that it describes a light generating device that aims to improve the performance and lifespan of the device by effectively cooling the light source and preventing damage to the components in the device.
权利要求：
CLAIMS:
1. A lighting device (1200) selected from the group of a lamp (1) and a luminaire (2) comprising a light generating system (1000); the light generating system (1000) comprising a housing (500) and a light generating device (100), wherein: the light generating device (100) comprises an elongated support (150) and a plurality of light sources (10), wherein the light sources (10) comprise solid state light sources; wherein the light sources (10) are supported by the elongated support (150); wherein the light sources are configured to generate light source light (11); the housing (500) is thermally conductive; wherein the housing (500) comprises a reflective inner surface (510) comprising a staircase profile (520) with n stairs (521), wherein n>2; wherein the n stairs have a stair length LI; wherein the reflective inner surface (510) is reflective for the light source light (11); and the light generating device (100) is mounted on the staircase profile (520) over at least part of the stair length LI and configured in thermal contact with the housing (500);- wherein the light generating device (100) is configured in physical contact with the reflective inner surface (510); wherein the housing (500) comprises a thermally conductive material; wherein the elongated support (150) has a support length L2, wherein O.5<L2/L1<1; and wherein the housing has a thermal conductivity selected from the range of >0.8 W/(m*K); wherein the staircase profile (520) has a tapering spiral shape; wherein the light generating device (100) comprises an elongated LED filament (250), wherein the LED filament (250) comprises a plurality of LED light sources (10) encapsulated by an encapsulant (160) comprising a luminescent material (200).
2. The lighting device (1200) according to claim 1, wherein n is selected from the range of 3-6.
3. The lighting device (1200) according to any one of the preceding claims, wherein the elongated support (150) is mechanically attached to the reflective inner surface (510).
4. The lighting device (1200) according to any one of the preceding claims, wherein the reflective inner surface (510) has a reflection for the light source light (11) in the range of R>85% assuming perpendicular irradiation of the reflective inner surface (510).
5. The lighting device (1200) according to any one of the preceding claims, wherein at least one of the stairs (521) of the staircase profile (520) is tilted relative to a lamp axis (Al) of the light generating system (1000).
6. The lighting device (1200) according to any one of the preceding claims, wherein at least one of the stairs (521) of the staircase profile (520) is in a plane perpendicular a lamp axis (Al) of the light generating system (1000).
7. The lighting device (1200) according to any one of the preceding claims, wherein at least one of the stairs (521) has a parabolic shape.
8. The lighting device (1200) according to any one of the preceding claims, wherein the housing comprises a metal.
9. The lighting device (1200) according to any one of the preceding claims, wherein the light generating device (100) comprises a first end (105) and a second end (106); wherein the light generating system (1000) comprises an electrical connector (1005) for connection with an external source of electrical energy, wherein the first end (105) is configured closer to the electrical connector than the second end (106); wherein the light generating system (1000) comprises electronics (1050) configured in the housing (500); wherein the light generating system (1000) further comprises an electrical connection (1060) between the electronics (1050) and the light generating device (100), wherein the electrical connection (1060) is connected to the light generating device (100) at a position (107) closer to the first end (105) than the second end (106).
10. The lighting device (1200) according to any one of the preceding claims 1-7, wherein the staircase profile comprises concentrically configured stairs (521); wherein the light generating system (1000) comprises at least two light generating devices (100) mounted on at least two of concentrically configured stairs (521).
11. The lighting device (1200) according to claim 9, wherein the light generating system (1000) comprises electronics (1050) as defined in claim 9 configured in the housing (500); wherein the housing (500) comprises a crevice (530), wherein the crevice (530) comprises the electrical connection (1060) as defined in claim 9; wherein the electrical connection (1060) is configured to electrically connect the at least two light generating devices (100).
12. The lighting device (1200) according to any one of the preceding claims 10- 11, wherein the electronics (1050) are configured to individually control the at least two light generating devices (100).
13. The lighting device (1200) according to any one of the preceding claims, wherein the light generating device (100) comprises an elongated printed circuit board (180).