Patent ID: 6857751
Filing Date: 2005-02-22
Classification: G02B,H04N

Abstract:
1. An image display system, comprising: a light source capable of generating an illumination light beam along an illumination path; a spatial light modulator comprised of an array of elements operable to deflect about an axis, said elements operable receive at least a portion of the illumination light beam and to communicate at least some of the illumination light beam received by the modulator along a projection light path; at least one adjustable illumination aperture having an opening larger in a direction parallel to the axis than in a direction perpendicular to the axis and operable to selectively control an amount of the at least a portion of the illumination light beam received by the modulator; and at least one adjustable projection aperture having an opening larger in a direction parallel to the axis than in a direction perpendicular to the axis and operable to selectively control an amount of the light communicated along the projection light path.