Patent ID: 7286278
Filing Date: 2007-10-23
Classification: B81B,B81C,B82Y,G02B,H01L

Abstract:
1. A spatial light modulator comprising: a lower semiconductor substrate comprising circuitry and electrodes; an upper light transmissive substrate bonded in spaced apart relationship to the lower substrate; an intermediate substrate disposed between the upper and lower substrates and having an open area for defining a gap between the semiconductor substrate and the light transmissive substrate; within the gap being disposed a rectangular active area comprising an array of reflective mirrors, wherein the mirrors have mirror edges that are neither parallel nor perpendicular to edges of the active area; a light blocking material on the upper light transmissive substrate and provided as a rectangular mask; and wherein the mirrors comprise substantially square mirror plates and torsion hinges that allow the mirror plates to move relative to the upper and lower substrates.