Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Dynamic diffractive optical transform










Image Number 11 for United States Patent #7009581.

A dynamic diffractive optical transform. An electric field pattern is created across a body of material, the material being characterized in that it has an optical transmission property which varies in response to of an electric potential applied across a portion thereof. The electric field pattern is created such that the resulting profile of the transmission property is an arbitrary shape which produces a desired diffraction pattern that may not be physically realizable in conventional refractive optics or is a Fresnel lens-like construct derived from a refractive optical element. This is done by selectively applying electric potentials to transparent electrode pairs having liquid crystal material therebetween and preferably relatively small proportions in relation to the relevant wavelength of light, so as to create variations in phase delay that are aperiodic, have other than fifty percent spatial duty factor or have multiple levels of phase delay. The transform is embodied in an optical scanner, an adaptive lens, and an optical switch.








 
 
  Recently Added Patents
Integrated bug tracking and testing
Dual-box location aware and dual-bitmap voltage domain aware on-chip variation techniques
System and method for self service marketing research
Method of targeting hydrophobic drugs to vascular lesions
Family of pain producing substances and methods to produce novel analgesic drugs
Vehicle driving assistance apparatus
Non-volatile memory and method having efficient on-chip block-copying with controlled error rate
  Randomly Featured Patents
Panel lifter pry bar
Editing, creating, and verifying reorganization of flowchart, and transforming between flowchart and tree diagram
Reader/writer for IC cards
Controlled release formulations of Ranitidine
Techniques for directory server integration
Simulator for an oil well circulation system
Method for minimizing environmental release of toxic compounds in the incineration of wastes
Predictive rake receiver for CDMA mobile radio systems
Pillow assembly with adjustable girth and elastic center panel
Eye finding and tracking system