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Color Projection Display using Silicon Micromechanics and Optical Interference

IP.com Disclosure Number: IPCOM000055327D
Original Publication Date: 1980-Jun-01
Included in the Prior Art Database: 2005-Feb-13

Publishing Venue

IBM

Related People

Authors:
Brodsky, MH Hartstein, AM [+details]

Abstract

A color projection deformographic display can be achieved by modifying the light reflection element of a silicon micromechanical array. The metallic reflective coating on the deflection element is further coated with a thin transparent dielectric in order to give rise to optical interference. As the direction of reflection changes due to the deflection of the element, the dielectric overcoating will cause the reflected beam to have a different color. It is necessary only to coordinate the thickness and dielectric constant of the overcoating in order that the range of deflection angles possible corresponds to the full spectrum of visible colors.