Patent ID: 7553033

Claim:
A projector, comprising: a light source to emit light; a spatial light modulator to modulate the light from the light source in accordance with an image signal; a light-intensity measuring section to measure light intensity; a light-source controller to control the light source; and a projector lens to project the light modulated by the spatial light modulator; the spatial light modulator including a plurality of movable mirror elements reflecting the light from the light source in a direction of the projector lens or in a direction other than that of the projector lens; the light-intensity measuring section including a plurality of light-intensity measuring elements corresponding to a plurality of solid-state light-emitting elements and measuring the light intensity of the light reflected in the direction other than that of the projector lens; the plurality of solid-state light-emitting elements including a first color solid-state light-emitting element that emits light in a first wavelength range and a second color solid-state light-emitting element that emits light in a second wavelength range different from the first light wavelength range; and the light source controller controlling intensity of light emitted by the first color solid-state light-emitting element and intensity of light emitted by the second color solid-state light-emitting element for each color light in accordance with a signal from the light-intensity measuring section.