| 发明名称 |
LIGHT-EMITTING DEVICE COMPRISING A HOLLOW RETRO-REFLECTOR |
| 摘要 |
The present invention relates to a light-emitting device (11) comprising a hollow retro reflector (15) having a reflective internal surface comprising at least three surface segments (17a-c) connected at an apex (18); and a solid state light-source (16a-c) attached to said internal surface of the hollow retro reflector and arranged to emit light towards said apex of the hollow retro refector. Various embodiments of the present invention provide uniform light-output from a relatively simple and cheap light-emitting device. |
| 申请公布号 |
US2015131260(A1) |
申请公布日期 |
2015.05.14 |
| 申请号 |
US201314405620 |
申请日期 |
2013.05.24 |
| 申请人 |
KONINKLIJKE PHILIPS N.V. |
发明人 |
Van Delden Martinus Hermanus Wilhelmus Maria;Stofmeel Leon Wilhelmus Godefridus |
| 分类号 |
F21V7/04;F21K99/00;F21V13/10 |
主分类号 |
F21V7/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A light-emitting device comprising:
a hollow retro reflector having a reflective internal surface comprising at least three surface segments connected at an apex; and a solid state light-source, wherein the solid state light-source is for emitting light towards the apex of the hollow retro reflector by being arranged on a respective one of the surface segments such that a projection of its optical axis on the respective one of the surface segments passes through the apex. |
| 地址 |
EINDHOVEN NL |
