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
Circuit topology for pulsed power energy harvesting
Display control apparatus and method of creating look-up table
Communication console with component aggregation
Systems and methods for space management in file systems
Wireless communication method and apparatus for supporting reconfiguration of radio link control parameters
Automatic monitoring of flight related radio communications
Reflective directional arrow
  Randomly Featured Patents
Semiconductor wafer manufacturing execution system with recipe distribution management database
Semiconductor memory device and method of verifying the same
Music synthesizing circuit
Method of making an oriented multilayer heat sealable packaging film
Device for controlling a pilot pressure signal
Communication of information between a plurality of network elements
Liquid soap dispenser
System and methods for distributing loads from fluid conduits, including aircraft fuel conduits
System and method for performing calculations using a portable electronic device
Manufacturing process of a hybrid contact-contactless smart card with an antenna support made of fibrous material