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
Triple-action pest control formulation and method
Linear jet ionizer
Mobile computing terminal
Charge domain filter and method thereof
Far field telemetry operations between an external device and an implantable medical device during recharge of the implantable medical device via a proximity coupling
Method of sheet alignment and method of post-processing comprising the same and method of image formation
  Randomly Featured Patents
Open web
Liquid crystal display device and manufacturing method thereof
Rinse aid compositions with improved characteristics
Semiconductor device and method for fabricating the same
Aqueous printing inks having improved freeze-thaw properties
Magnetic absolute angular position sensor for valves controlled by electric part-turn actuators
Full follow-up type servo-system
Adhesive sealant composition
Semiconductor laser drive circuit and light beam scanning system using semiconductor laser
Method and system for distributing software in a telecommunications network