System and method for compensating for spoke light

Details System and method for compensating for spoke light System and method for compensating for spoke light

2005-08-02

2008-08-12

Sever, Andrew T (Department: 2851)

Optics: image projectors

Color filter

C353S121000, C348S743000, C359S891000

Reexamination Certificate

active

07410262

ABSTRACT:
The disclosed embodiments relate to a system and method for compensating for spoke light in a video unit (10). More specifically, there is provided a method comprising measuring a first light level during a non-spoke time of a color wheel (14) to generate a non-spoke light level; and setting a spoke light compensation value based on the measured non-spoke light level. There is also provided a video unit (10) comprising a light source (12) configured to generate a first light level during a non-spoke time of a color wheel (14), a photodiode assembly (26) configured to measure the first light level to generate a non-spoke light level, and a processor (20) configured to set a spoke light compensation value based on the non-spoke light level.

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