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
Controller for soldering iron
Systems and methods for electronic verification of vehicle insurance coverage
Scalable pixel coverage function-map
Liquid crystal display
Identification of biomarkers in biological samples and methods of using same
Handheld electronic device with text disambiguation employing advanced editing feature
Device and method for generating soft tissue contrast images
  Randomly Featured Patents
Method for crystallization of low molecular weight polycarbonate and method for preparing polycarbonate resin from it
User configurable onboard navigation system crossroad presentation
Needle shield or the like
Method and apparatus for attaching leads
Spring clip
Electronic switch
Two light level ballast
Method for preparing .alpha.-chloroboronic acids from mannitol
P-methylenedioxyphenyl propionitrile derivatives, process for producing same, intermediates used in said process and organoleptic uses of said derivatives and intermediates
Detector for high-energy radiation