| 摘要 |
A luminaire 31 has a transparent light waveguide 33, which includes a perimeter edge 41, 43, at least one light feed edge portion 41 along its perimeter edge, a visible surface 34, and light extracting means 38. A support structure 49 supports the light waveguide along at least a portion of its perimeter edge, and a light source, such as LEDs 45, is provided for introducing light into the light feed edge portion of the waveguide. Light is extracted from only a portion of the waveguide by the light extracting means. The light extracting means produces one or more luminous areas on a portion of the visible surface of the waveguide, and are positioned on the waveguide such that the luminous area or areas produced thereby give the appearance of a source of light for the luminaire that is substantially detached from the luminaire's support structure. |
