Television – Video display – Color sequential
Reexamination Certificate
2006-06-06
2006-06-06
Miller, John (Department: 2614)
Television
Video display
Color sequential
C348S742000, C348S272000, C348S273000
Reexamination Certificate
active
07057674
ABSTRACT:
A color wheel is disclosed that has at least one segment that occupies, for a given radius, a percentage of the circumference of the wheel at that radius, which percentage varies continuously or in multiple steps from a radially inward point to a radially outer point on the wheel. In one embodiment, the color wheel has a plurality of filter segments adjacent each other around the circumference of the wheel, wherein at least one of the transitions from one filter segment to the next is curved or stepped.A color wheel also is disclosed that has a plurality of filter segments adjacent each other around the circumference of the wheel, wherein at least one of the segments is a higher brightness segment than the others and has sides facing adjacent filter segments that do not lie on the radius of the wheel. A projection system is also disclosed that has a light source, a unique color wheel, a spatial light modulator, and projection optics.
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Huibers Andrew G.
Muir Gregory R.
Richards Peter W.
Miller John
Muir Gregory R.
Reflectivity, INC
Tran Trang U.
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