| 摘要 |
This invention relates to a LED luminaire (101) having a structure that provides indirect output light. The luminaire has a light transmissive front plate (103), a back plate (111), which is arranged opposite to the front plate, a plurality of LEDs (109), and a plurality of reflectors (113), which are arranged in an array at a front surface (115) of the back plate. The LEDs emit light towards the back plate. Each reflector comprises a collimator (114) surrounding a portion (117) of the back plate, which portion is diffusely reflective. The collimator is arranged to reflect light emitted from at least one of the LEDs towards the diffusely reflective portion, and the collimator is arranged to collimate light reflected from that portion towards the front plate. |
