×

Optically addressed spatial light modulator and method

  • US 5,691,836 A
  • Filed: 07/11/1995
  • Issued: 11/25/1997
  • Est. Priority Date: 07/11/1995
  • Status: Expired due to Fees
First Claim
Patent Images

1. An optically addressed spatial light modulator comprising:

  • a reflective modulator element including a metallic strip mounted above a conductor;

    a detector for detecting incident radiation;

    a focusing unit which focuses a write beam on said detector and a read beam on said reflective modulation element; and

    a circuit receiving a signal output from said detector generated in response to said write beam and altering a modulation characteristic of said reflective modulator element in accordance with said signal, said read beam being modulated in accordance with an amount of alteration of said reflective modulator element,wherein said modulation characteristic is a position of said metallic strip above said conductor, and said circuit alters said position by injecting a charge output in response to said signal into said conductor.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×