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
Once daily formulations of tetracyclines
Method and apparatus for complementing an instrument panel by utilizing augmented reality
Compositions for inhibiting NADPH oxidase activity
Tomlinson Harashima precoding with additional receiver processing in a multi-user multiple-input multiple-output wireless transmission system
Spread spectrum communication system and transmission power control method therefor
Containers having radio frequency identification tags and method of applying radio frequency identification tags to containers
Early kill removal graphics processing system and method
  Randomly Featured Patents
Ultrasound treatment system
Hard disk drive mounting structure and computer incorporating the same
Multiple-light cold-cathode tube lighting device
Method and apparatus for positioning an input image into interlaced video
Single oscillator FSK pulsed radar receiving transmitter
System and method for tracking, monitoring, and supporting self-procuring principals in real estate transactions
System and method for uplink data and control signal transmission in MIMO wireless systems
System & method for monitoring & diagnosing faults in environmentally controlled containers, such system and method being especially adapted for remote computer controlled monitoring of numero
Magnetostrictive actuator
Pawl brake assembly for an electric motor