Pulsed two lamp single light valve display system

DETAILED DESCRIPTION The present invention achieves technical advantages as a two lamp single light valve imaging system.
One lamp is utilized for generating red light, and a second lamp is utilized for generating both blue and green light.
The first lamp is driven at 3.
times.
it rated power rating for 1/3 of a video frame, thus being driven at its average power rating over 1 video frame.
The second lamp is pulse driven at 150% of its rated power rating for 2/3 of a video frame, thus also being driven at its average power rating over 1 video frame.
The illumination system of the present invention comprises a light valve modulating a light beam impinging thereon as a function of an incoming video signal representing a series of video frames.
A first and second lamp generates a first light source and a second light source, respectfully.
Optics direct the first light source and the second light source to the light valve to form the light beam.
A light coloring device colors the first light source a first color, and also alternately colors the second light source a second color and third color.
A lamp driver circuit pulse drives the first lamp when the color device colors the first light source the first color, the lamp driver circuit also pulse driving the second lamp when the color device alternately colors the second light source both the second color and the third color.
The first and second lamps are pulse driven at a peak power level being higher than average power rating of the respective lamp, but wherein the lamps operate at a rated power level over each video frame to last an acceptable life span.
In addition, pulse driving these lamps above their power ratings achieves greater light output for the respective color, thereby achieving a brighter image as formed by the light valve.
The first color is preferably red which is the most deficient color, and the second and third colors being blue and green, respectively.