Resources Contact Us Home
Acoustic lens for use in acoustic microscope

Image Number 13 for United States Patent #4881618.

An acoustic lens for use in an acoustic microscope including a solid state medium for propagating an acoustic wave having a wavelength .lambda. and having opposed end surfaces, an electric-acoustic transducer applied on one end surface of the solid state medium and having a radius a, and a spherical lens portion formed in the other end surface of the solid state medium and having an aperture of a radius w. The length l and the aperture radius w are normalized by the transducer radius a such that Z=l.lambda./a.sup.2 and W=w/a. Values of Z and W are selected from such a region in a first quadrant of the Z-W coordinate system that desired power and/or phase are obtained. The region neighboring the point Z=1 and W=1 is excluded.

  Recently Added Patents
Feature management of a communication device
Content display monitor
Drive apparatus
Wine bottle
Bicycle shifting method
Method of transmitting data using spatial multiplexing
Buildable dinnerware
  Randomly Featured Patents
Markers for dental x-ray film and packets for simplified film mounting
Notebook computer housing
Cap for a pen
On-chip test circuit and method for testing of system-on-chip (SOC) integrated circuits
Assembling electric storage batteries and a clamp therefor
Method of forming shallow junctions by entrapment of interstitial atoms
Personal computer system with bus noise rejection
Fluid separation system
Constant pressure paper press
Electrostatic discharge protection rail clamp with discharge interruption circuitry