Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Electro-optical interferometric microdensitometer system










Image Number 10 for United States Patent #5255069.

There is disclosed an interferometric system including electro-optical apparatus and method for examining and characterizing ultra fine details of various specimens such as a piece of photographic film. The method includes illuminating a specimen with a thin wide substantially pure Gaussian light beam, detecting the interfering patterns of light from the specimen, and characterizing ultra fine details of elements of the specimen by means of the detected light patterns. The apparatus includes a laser, a magnifying telescope, a multi-prism beam expander, and a linear array of photo-diodes. Signals from the photo-diodes are displayed on an optical multichannel analyzer (OMA) to provide a waveform characteristic of ultra fine elements of the specimen. Both "near-field" and "far-field" characterizations are possible and details of elements having diameters of the order of the wavelength of the light used (e.g., about 0.6 .mu.m) are detected.








 
 
  Recently Added Patents
Elastic wave device having a capacitive electrode on the piezoelectric substrate
Steering lock driving circuit and steering lock device
Method and system for filtering home-network content
Data modulation for groups of memory cells
Reoccuring keying system
Content reproduction apparatus and content processing method therefor
Semiconductor device and method of manufacturing the same
  Randomly Featured Patents
Data ring for vertical tube rotor
Low power protocol for wireless terminal peer-to-peer communications
Analytical server integrated in a process control network
Ceramic capacitors and dielectric compositions
Seed corn detasseling machine
Semiconductor manufacturing method and semiconductor manufacturing apparatus
Use of anti-prolactin agents to treat proliferative conditions
Media editing system with improved effect management
Process for improving material thickness distribution within a molded bottle and a bottle therefrom
Individual selective-calling receiver with reduced number of switches