Resources Contact Us Home
Acoustic lens for use in acoustic microscope

Image Number 16 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
Locking flange
Knee guard
Drug delivery system
Reproducible dither-noise injection
Method and system for electronic assistance in dispensing pharmaceuticals
Clusterin antisense therapy for treatment of cancer
Group control method for machine type communication and mobile communication system using the method
  Randomly Featured Patents
Heddle eyelet structure
Partial oxidation carbon removal process
Zoom projection lens
Generalization of the photo process window and its application to OPC test pattern design
Method of stimulating leukemic immune response
Method of manufacturing organic EL device and ink composition for organic EL device
Method and apparatus for computing a sliding sum of absolute differences
Dental analyzer
Method for making a liquid smoke coloring agent solution
Fluid pumps