| 摘要 |
Disclosed is an LED-based luminaire (10, 110, 210, 310, 410, 510, 610, 710) including an optic surrounding a plurality of LEDs (140, 240, 340, 440, 540, 640a/b, 740). The optic may include a plurality of interior reflective surfaces for mixing light output of the LEDs and also include a transmissive diffuser (30, 130, 230, 330, 430, 530, 630a/b, 730a/b) through which interiorly reflected light output of the LEDs exits the LED-based luminaire. |
| 主权项 |
1. An LED-based luminaire, comprising:
a lower reflective surface; a plurality of LEDs atop said lower reflective surface; a blocking reflective surface provided over said LEDs past a zenith of said LEDs and extending toward a rear reflective surface, said blocking reflective surface having a lower end and an upper end, said lower end being more distal said rear reflective surface than said upper end is to said rear reflective surface and said lower end being more proximal said lower reflective surface than said upper end is to said lower reflective surface; a transmissive diffuser extending over said blocking reflective surface;
wherein said blocking reflective surface is interposed between said lower reflective surface and said transmissive diffuser; andwherein at least some of a light output from said LEDs is reflected by said blocking reflective surface, said lower reflective surface, then said rear reflective surface prior to passing through said transmissive diffuser. |
