Invention Grant
US08081367B2 Layered dimmer system 失效
分层调光系统

Layered dimmer system
Abstract:
A dimmer wheel which is formed to absorb large amounts of light and to disperse the light that is absorbed. The dimmer wheel has a bottom surface that is irregular, and a reflective material in that bottom surface to scatter the light. A light absorbing material also receives some of the light.
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