Resources Contact Us Home
Liquid crystalline optical filter

Image Number 2 for United States Patent #3942870.

The optical transitions of extrinsically optically active insoluble materials become optically active and circularly dichroic when in contact with optically negative liquid crystalline materials thereby providing unusual and highly advantageous properties. The circularly dichroic optical properties induced in the extrinsically optically active insoluble materials can be utilized for optical filter applications.

  Recently Added Patents
Electronic time stamping apparatus for use with an inground transmitter
Reconfigurable barrel shifter and rotator
Lead frame array package with flip chip die attach
Portable computer
Optical writer and image forming apparatus including same
Dual gate electronic memory cell and device with dual gate electronic memory cells
Meat-containing, strip shaped food product and method of making same
  Randomly Featured Patents
Method for identifying molecular weight of a phosphoric acid monoester compound and an additive for mass spectrometry
Motor controller having multiple command sources
Apparatus for removing and storing semiconductor device trays
Lighted writing device
Container having a snap-on lid
Lighting apparatus
Signal processing system
Fiberglass-reinforced solid plastic drum
Method for reducing a particulate material containing a metal, especially iron ore
Method for planning the journey of a submarine