Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Electronic devices with voice command and contextual data processing capabilities
Instrumenting configuration and system settings
Epoxy composition for encapsulating an optical semiconductor element
MiR 204, miR 211, their anti-miRs, and therapeutic uses of same
Wireless communication system, associated methods and data structures
Image forming apparatus
Device and method for adjusting a chrominance signal based on an edge strength
  Randomly Featured Patents
Bubble bat
Window frame extrusion
Electrical connector
Driving process of enlarged tunnel
Processes for the preparation of 4-[[4-[[4-(2-cyanoethenyl)-2,6-dimethylphenyl]amino]-2-pyrimidinyl]amino]- benzonitrile
Oscillating weight for a watch
Method of inhibiting voltage suppression lithium/fluorinated carbon batteries
Process for layering sheets of food material
High pressure gas cleaning purge of a dry process vacuum pump
Glow plug with O-ring seal