Patent ID: 7692844
Filing Date: 2010-04-06
Classification: B82Y,G01J,G02B,G02F,G06F,G09G,H01Q

Abstract:
1. An interference modulator comprising: a first wall; a second wall separated from the first wall by a fluid-filled gap, the second wall configured to be movable such that it can be driven between a first state and a second state in a direction generally perpendicular to the first wall to change the volume of the gap, and further configured to form a contact position in the second state in which the first wall and the second wall are essentially adjacent to one another; an optical interference cavity defined by the first wall and the second wall; and an aperture in the movable second wall sized to allow fluid to flow into or out of the gap as the volume of the gap changes to control damping of the movable wall.