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Devices and methods for achieving non-contacting white state in interferometric modulators

  • US 8,643,936 B2
  • Filed: 11/30/2011
  • Issued: 02/04/2014
  • Est. Priority Date: 05/04/2011
  • Status: Expired due to Fees
First Claim
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1. An optical device, comprising:

  • a reflector configured to reflect light;

    an absorber positioned relative to the reflector so as to provide a gap between the reflector and the absorber, at least one of the reflector and the absorber movable relative to the other; and

    an optical element disposed with respect to the reflector and the absorber such that when the absorber and the reflector are separated by a non-zero distance of z0 that provides said gap between said absorber and said reflector, incident white light transmitted through the absorber and reflected from the reflector returns to the absorber and passes therethrough as a substantially white color output from the optical device.

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