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Tunable optical filter

  • US 20040027671A1
  • Filed: 08/09/2002
  • Published: 02/12/2004
  • Est. Priority Date: 08/09/2002
  • Status: Active Grant
First Claim
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1. A tunable optical filter comprising:

  • a first optical portion;

    a second optical portion located a distance from the first optical portion;

    at least one deformable membrane actuator that is configured to alter the distance between the first optical portion and the second optical portion, the deformable membrane actuator located outside of an optical volume that is defined by the location of the first optical portion and the location of the second optical portion.

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