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Acoustic and ultrasound sensor with optical amplification

  • US 5,339,289 A
  • Filed: 04/05/1993
  • Issued: 08/16/1994
  • Est. Priority Date: 06/08/1992
  • Status: Expired due to Fees
First Claim
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1. An acoustic sensor comprising:

  • a first reflective surface responsive to incident sound waves,a light beam incident upon said reflective surface,a reflected light beam which is the reflection of said incident light beam from said first reflective surface,a position sensitive light detector so arranged as to sense the position of said reflected light beam,and optical means for amplifying a movement of said position of said reflected light beam on said position sensitive light detector in response to said incident sound waves.

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