| 摘要 |
An improvement suitable for incorporation into a lighting fixture having a plurality of light source means for emitting light rays and at least one reflector wherein the one reflector superposes the light source means in a partially circumscribing, radially spaced relationship about the axis of symmetry of the lighting fixture to receive light rays and to project them onto a work surface. The improvement is a second reflector in axial alignment with, and rotatably mounted about, the axis of symmetry. The second reflector is positioned beneath the light source means and has a plurality of distinct surface sections, each of the surface sections being associated with one of the light source means for receiving the light rays emitted therefrom and projecting the light rays onto the one reflector. Each surface section has two radially adjacent portions. One portion has a textured finish for diffusing the light rays and the other portion has a specular finish for intensifying the light rays. The second reflector can be rotated to selectively position either the textured portion or the specular portion beneath each light source means to permit selective adjustment of the pattern and intensity of light rays projected from the lighting fixture.
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