Resources Contact Us Home
Wave mode converter

Image Number 4 for United States Patent #4175830.

Mode converter for electromagnetic, light or infrared waves. This mode converter converts particle non-confining modes to particle confining modes. In a confining mode wave beam the phase of the wave with respect to time at a point of the beam having a given azimuth with respect to the beam axis is proportional to this azimuth. Two types of mode converter are disclosed. In the first type, the wave passes through a block of transparent isotropic material the thickness of which is proportional to the azimuth around the beam axis. In the second type, the converter is formed with triangular or sectoral plates of birefringent material and in each plate the slow and fast axes are given an adequate orientation.

  Recently Added Patents
Three-dimensional shape data processing apparatus and three-dimensional shape data processing method
Error protection for pipeline resources
Pattern transfer apparatus and method for fabricating semiconductor device
Canopy light fixture
User interface for integrating applications on a mobile communication device
Combination of a microorganism and a phytosphingosine derivative, composition, methods of use
Three-term predictive adder and/or subtracter
  Randomly Featured Patents
Means to detect and locate pinching and chafing of conduits
Front portions of a push button lock
Process for the synthesis of perindopril and its pharmaceutically acceptable salts
Spherical surface inspection system
Odorizing mixture for an odorless gas fuel
Apparatus for automatically testing safety light curtain and measuring machine stoppage time
Combined electrical switch and battery powered night light
White light emitting device and method
Razor head, in particular a razor blade unit of a wet razor
Post-processing device and paper processing apparatus