Patent ID: 8235532

Claim:
A system for modulating light, comprising: first and second sources of respective different color wavelength light pulses, each source characterized by an approximately linear relationship of lumens per second vs. pulse duration for an initial pulse duration, with the first source pulse characterized by a roll-off following a pulse duration of given time period during which the second source pulse maintains the linear relationship; a spatial light modulator positioned for receiving light from the first and second light sources and having individually controllable image pixel forming elements for modulating the received light in order to form an image; and a controller for controlling on and off pulsing of the first and second light sources in synchronization with control of the modulation of the received light by the image pixel forming elements so that the first and second sources are sequentially pulsed for a color sequencing eye integration time cycle, with the first source being pulsed with pulses of duration less than the given time period and the second source being pulsed with pulses of duration at least some of which are greater than the given time period, and with the sum of the time durations of all pulses of the first and second sources illuminating the spatial light modulator during the eye integration time being approximately the same.