Resources Contact Us Home
Polarizer device

Image Number 7 for United States Patent #5295009.

The polarizer comprises a layer of cholesteric liquid crystal with Grandjean structure disposed in the path of the light and in which the light in a given wavelength range is reflected with selective and circular polarization or is transmitted with reversed direction of rotation, and a mirror which reversed the direction of rotation of the circular-polarized light. The component reflected by the mirror is also transmitted. If the liquid crystal layer is concentric with the source of natural light and the mirror is spherical, the result is a source of circular polarized light. A projection system is obtained by a combination of two of the aforementioned polarizers, one serving as a polarizer and one as an analyzer, and an interposed liquid crystal display cell for modulating the intensity of the polarized light.

  Recently Added Patents
Polarity switching member of dot inversion system
DMAPN having a low DGN content and a process for preparing DMAPA having a low DGN content
Extreme ultraviolet light source device and method for generating extreme ultraviolet light
5-HT.sub.3 receptor modulators, methods of making, and use thereof
Manipulation of an alternative respiratory pathway in photo-autotrophs
Heat shield and laminated glass
RF power amplifier circuit with mismatch tolerance
  Randomly Featured Patents
Generation of gas in a lab-on-a-chip environment
Skewer for automobile bicycle racks
Self-oscillating mixer circuit
Schlumbergera plant named `THOR-LIVIA`
Snap together badge and clip
Coil assembly
Selection of communication channel in a digital cordless telephone
Television receiver and control program for the television receiver
On-line editing associated with controller engine instances
Vehicular accessory driving apparatus