METHOD AND APPARATUS FOR BIDIRECTIONAL CONTROL OF THE COLOR AND DIFFUSION OF A LIGHT BEAM

摘要

A light fixture (100, 600) includes first and second flexible materials (710 and 720) coupled to first and second scrolling mechanisms (750 and 760) that move the material in first and second directions to position a selected portion of the first and second flexible materials in first and second parts (730 and 740) of a light beam (112) from the fixture. A device coupled to the first and second mechanisms may move the first and second mechanisms in third and fourth directions so that third and fourth parts (942 and 944) of the light beam do not pass through the first and second flexible materials. The third and fourth directions are different than the first and second directions. Different areas of the first and second flexible materials may produce different colors. The light fixture may also include a third scrolling mechanism (110) coupled to a flexible diffusion material, to diffuse at least a part of the light beam by a predetermined amount.