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ULTRASONIC TESTING APPARATUS

  • US 3,699,805 A
  • Filed: 07/26/1968
  • Issued: 10/24/1972
  • Est. Priority Date: 07/26/1968
  • Status: Expired due to Term
First Claim
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1. An ultrasonic lens for focusing ultrasonic wave trains passing therethrough, comprising:

  • a sonic propagating body having a double curved focusing face defined by two different curvatures each extending along a different one of two perpendicular reference axes so that each of tHe ultrasonic wave trains in an ultrasonic beam passing through the focusing face is deflected at a different angle of refraction along each of the reference axes as primarily determined by the different curvature of the focusing face extending along each of the reference axes.

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