Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Laser sensitometer using multiple-prism beam expansion and a polarizer










Image Number 3 for United States Patent #6236461.

An electro-optical apparatus particularly suitable for exposing a sample of light sensitive material to provide a graded series of exposures of different intensity levels. The apparatus includes a light source, beam shaping optics, and a rotatable polarizer. The light source provides a Gaussian beam of light directed along an optical axis. The beam shaping optics are disposed in the optical path and are adapted to expand the Gaussian beam of light into an elongated beam of light and to project the elongated beam of light along the optical axis toward a sample. The rotatable polarizer, disposed in the optical path intermediate the light source and the beam shaping optics, is rotated to vary the intensity level of the beam of light.








 
 
  Recently Added Patents
Display screen or portion thereof with icon
Apparatus and method for defending against internet-based attacks
Dynamic retrieval of installation packages when installing software
Process for removing hydrazine from hydroxlyamine solutions
Low-complexity q-ary LDPC decoder
High-pressure discharge lamp and projector having the high-pressure lamp
Lubricating oil compositions for internal combustion engines
  Randomly Featured Patents
Supply units having an associated electronically-readable memory device
Neural network-type data processing system recognizing a predetermined shape using inhibitory connections
Anisotropic conductive film for microconnections
Organic disposer and method of controlling the same
Spare tire cover for an automobile
Two speed axle assembly
Liquid crystal module having a pair of lamp frames with latching leg pieces
Method for forming a single crystal silicon layer
Ferric fortification system
Type II mid-infrared quantum well laser