Patent ID: 7116378
Filing Date: 2006-10-03
Classification: H04N

Abstract:
1. A color sequencing system for receiving visible light having a significant luminance across the visible light spectrum and for selectively transmitting light with an emphasis on different portions of the spectrum, the system comprising: a segmented color wheel having four segments, with three of the segments being primarily transmissive in only a portion of the wavelength spectrum of visible light, the portion for each of the three segments not being identical, and with a fourth segment being broadly transmissive across the wavelength spectrum of visible light, the broadly-transmissive segment having a transmittance at some wavelengths of visible light that is different from a transmittance at some other wavelengths of visible light so as to provide a desired color of light transmitted therethrough; and a base to which the color wheel is rotatably mounted; wherein the color sequencing system is optimized for use with a particular light source by selecting the transmittance of the broadly-transmissive segment so as to provide a light output that is substantially uniform across the wavelength spectrum of visible light after the light from the light source has passed through the broadly-transmissive segment.