| 摘要 |
A light fitting for mounting on a ceiling includes one or more tubular lamps (16, 18) carried in a supporting structure (12) which has for the or each respective lamp a first light outlet (52, 54) through which light is emitted generally downwards and a second light outlet (40, 42) around the same level as the lamp through which light is emitted generally horizontally and upwardly for illuminating the ceiling and upper wall areas of a room. Predetermined zones of the room are shielded from light directly from the lamp(s) by longitudinal light obstructing means (26,56,28,58) intermediate the first and second outlets. Louvres (60, 61, 62) and reflectors (46, 50) are used for light output optimisation and directional control. The fitting is particularly useful in hospital wards where the light obstructed zones are arranged to coincide with bed head regions thus preventing glare to patients, and in offices for preventing reflections from VDU screens. <IMAGE> |
