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Human-readable, bi-state environmental sensors based on micro-mechanical membranes

  • US 7,852,491 B2
  • Filed: 03/31/2008
  • Issued: 12/14/2010
  • Est. Priority Date: 03/31/2008
  • Status: Expired due to Fees
First Claim
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1. A sensor, comprising:

  • an interferometric modulator, the modulator configured to permanently actuate in response to a presence of at least one selected chemical, wherein the actuation of the interferometric modulator is visually detectable.

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