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
Fuel cell module
Multi-mode 3-dimensional image display apparatus
Method and apparatus for detection of the remote origin fraction of radon present in a measuring site
Hybrid fin field-effect transistor structures and related methods
Image forming apparatus and system connectable with an authorization apparatus via a communications network, the image forming apparatus comprising an apparatus control section, an initial inq
Perspective runway system
Plastic floor-wall transition methods, materials, and apparatus
  Randomly Featured Patents
Using different network addresses for different components of a network-based presentation
Process for preparing heat-curable, water-dilutable coating compositions for coating metal substrates
Acoustic resonator and filter
Audio amplifier
Liquid crystal display
Physiological preparation containing loaded cells in suspension and a magnetic agent for local concentration thereof in a living body
Connectorized optical module package and method using same with internal fiber connections
Method of dynamic protection and its apparatus
Semiconductor device and fabrication method thereof
Exercise shroud