Patent ID: 6396620
Filing Date: 2002-05-28
Classification: B81B,B81C,G02B

Abstract:
An electromagnetic radiation shutter driven by electrostatic forces, comprising:a stationary membrane capable of allowing electromagnetic radiation transmission therethrough; a first flexible membrane comprising an electrode element and at least one biasing element, wherein the first flexible membrane includes a fixed portion attached to the underside of the stationary membrane and a distal portion adjacent to the fixed portion and released from the underside of the stationary membrane; and a second flexible membrane comprising an electrode element and at least one biasing element, wherein the second flexible membrane includes a fixed portion attached to the topside of the stationary membrane and a distal portion adjacent to the fixed portion and released from the topside of the stationary membrane, whereby a voltage differential established between the electrode element of the first flexible membrane and the electrode element of the second flexible membrane moves said first and second flexible membranes relative to said stationary membrane to thereby deflect electromagnetic radiation.