IPC分类号：
F21V7/00 | F21V15/01 | F21V3/00 | F21S8/04 | F21V7/04 | F21K9/62 | F21Y115/10 | F21Y105/18
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：
DE GIER, RONALD, CORNELIS | DEFLANDRE, THOMAS | FRANCK, PETER, JOHN | VERHOEVEN, MARK, JOHANNES, ANTONIUS | KIM, JAMES, JEHONG
代理机构：
VERWEIJ, PETRONELLA DANIËLLE
摘要：
The invention provides a lighting unit (1000) comprising a light mixing chamber (100) defined by faces (110) and an edge face (130), wherein a height (H) of the light mixing chamber (100) defined by a distance between the faces (110) is smaller than a first length (L1) of the light mixing chamber (100), wherein the lighting unit comprises a plurality of light sources (10) configured to provide light source light (11) in the light mixing chamber (100), wherein at least one of the faces (110) comprises a plurality of chamber openings (141) for escape of at least part of the light source light (11) from the light mixing chamber (100), wherein the lighting unit (1000) further comprises a plurality of beam shaping elements (150), with each beam shaping element (150) configured downstream from a corresponding chamber opening (141), and wherein the beam shaping elements (150) comprise reflectors (200).
技术问题语段：
The technical problem addressed by the patent is how to create thin luminaires that can output light in a controlled, shapeable, and directed manner through a mixing chamber with an array of apertures and optics. These characteristics can be achieved by controlling the shapes, sizes, and positions of the apertures and optics in relation to each other.
技术功效语段：
The patent text discusses the growing popularity of slim downlights in the market and how they are easy to install. These downlights have a unique design that allows for a large light emitting surface with a minimal height. This design also results in a high luminance intensity at higher viewing angles. However, it can be difficult to achieve the desired quality level of light for these thin downlights. The technical effect of this patent is to provide a solution for generating the desired quality of light for slim downlights.
权利要求：
1. A lighting unit (1000) comprising a light mixing chamber (100) defined by faces (110) and an edge face (130), wherein a height (H) of the light mixing chamber (100) defined by a distance between the faces (110) is smaller than a first length (L1) of the light mixing chamber (100), wherein the lighting unit comprises a plurality of at least ten light sources (10) configured to provide light source light (11) in the light mixing chamber (100), wherein at least one of the faces (110) comprises a plurality of chamber openings (141) for escape of at least part of the light source light (11) from the light mixing chamber (100), wherein the chamber openings have a length equivalent to the thickness of the face comprising said chamber openings, and have a shape and/or diameter that varies with the length, wherein the lighting unit (1000) further comprises a plurality of beam shaping elements (150), with each beam shaping element (150) configured downstream from a corresponding chamber opening (141), and wherein the beam shaping elements (150) comprise reflectors (200), wherein the plurality of at least ten light sources (10) are configured in an evenly distributed manner at the edge face (130) and are configured to provide said light source light (11) having an optical axis (O) perpendicular to the height (H), and wherein the beam shaping elements (150) are configured in a pseudo random pattern.
2. The lighting unit (1000) according to claim 1, wherein the reflectors (200) comprise first reflector openings (201) configured aligned with the chamber openings (141) for receipt of light source light (11) escaping from the light mixing chamber (100) and comprising second reflector openings (202) for escape of beam shaped light (1001).
3. The lighting unit (1000) according to claim 2, wherein at least part of reflector faces (210) between said first reflector openings (201) and said second reflector openings (202) comprise a metallic mirror material (245).
4. The lighting unit (1000) according to any one of the preceding claims, wherein the face (110) comprising said plurality of chamber openings (141) and the plurality of beam shaping elements (150), are comprised by a single unit (161).
5. The lighting unit (1000) according to any one of the preceding claims, wherein the face (110) comprising said plurality of chamber openings (141) and at least part of the edge face (130) are comprised by a single unit (162).
6. The lighting unit (1000) according to any one of the preceding claims, wherein the equivalent diameter of the chamber openings increase with increasing distance from the chamber opening in the face..
7. The lighting unit (1000) according to any one of the preceding claims, wherein at least one of the faces (110) comprises elements (171) configured to redirect light source light (11) within the light mixing chamber (100).
8. The lighting unit (1000) according to any one of the preceding claims, wherein the face (110) comprising the plurality of chamber openings (141) comprises in the range of 0.01-100 chamber openings / cm2, and wherein the lighting unit (1000) has a ratio of the first length (L1) to the height (H) of 5≤L1/H≤100.
9. The lighting unit (1000) according to any one of the preceding claims, wherein the chamber openings (141) have equivalent diameters selected from the range of 0.2-20 mm.
10. The lighting unit (1000) according to claim 9, wherein the equivalent diameters of the chamber openings (141) vary as function of the distance from the edge face (130).
11. The lighting unit (1000) according to any one of the preceding claims 2 to 10, wherein there is a non-zero distance between the chamber openings and first openings of the beam shaping elements.
12. The lighting unit (1000) according to any one of the preceding claims, wherein the beam shaping elements (150) are configured in a phyllotaxis pattern.
13. The lighting unit (1000) according to any one of the preceding claims, wherein the lighting mixing chamber (100) further comprises one or more air openings (341) configured at one or more of the edge face (130) and a face (110) not comprising the plurality of chamber openings (141).
14. The lighting unit (1000) according to any one of the preceding claims, wherein one or more of the edge face (130) and the face (110) comprising the plurality of chamber openings (141) comprises a thermally conductive material.