| 摘要 |
A variable focus indirect lighting fixture has a pair of first reflectors with each reflector arranged to substantially surround a light source, and a second variable focus reflector positioned in front of the first reflectors. Each of the first reflectors has an opening arranged to provide direct rumination from the light source. The second reflector is positioned in front of each opening of the pair of first reflectors to receive and reflect the lumination from each light source passing through each opening. The second reflector has a pair of inner, concave surfaces arranged such that each inner surface faces a respective opening of the first reflectors and is arranged to receive and reflect the lumination from the respective light source passing through the opening of each of the first reflectors. The inner surfaces are aligned along a center line of the second reflector between the pair of first reflectors. The center line is adjustable to modify the concavity of the inner surfaces of the second reflector. Adjustment of the center line varies the focus of the light output reflected from the second reflector of the fixture.
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