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Two dimensional electro-optic modulator and applications therefor

  • US 4,480,899 A
  • Filed: 10/08/1981
  • Issued: 11/06/1984
  • Est. Priority Date: 10/08/1981
  • Status: Expired due to Fees
First Claim
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1. An electro-optic modulator for spatially modulating a light beam essentially simultaneously in two dimensions in accordance with input voltages, said modulator comprisingan electro-optic element, anda two dimensional planar array of individually addressable electrodes intimately associated with a reflective surface of said electro-optic element for coupling fringe electric fields into said electro-optic element in response to said input voltages, andmeans for applying a light beam to said modulator at a grazing angle of incidence with respect to the reflective surface of said electro-optic element, said light beam illuminating said surface over an area which is essentially coextensive with said electrode array whereby said light beam is spatially modulated essentially simultaneously in two dimensions in accordance with said input voltages.

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