Accession Number : ADD008614

Title :   Light-Scattering Disc Collector.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Geary,Joseph M

Report Date : 16 Jun 1981

Pagination or Media Count : 11

Abstract : A light-scattering disc collector member useable in converting a classical (coherence-dependent) microdensitometer to a linear (mode) microdensitometer that is coherence-independent. The member is made of material that is transmissive, non-absorbing, and high scattering as to light, and it preferably comprises a right circular cylinder which is made opaque (such as with black paint), except for a light-transmissive entrance aperture which is located on one base of the cylinder and which is shaped as an inwardly formed hemispherical dome, and a light-transmissive exit aperture which is located on the other base of the cylinder in geometric alignment with the entrance aperture. When used to convert a classical microdensitometer to a linear microdensitometer, the light-scattering disc collector member replaces the objective of the microscope in the sensor optics assembly of the classical microdensitometer. (Author)

Descriptors :   *Patents, *Densitometers, *Light scattering, *Optical detectors, Linear systems, Hemispheres, Paints, Domes(Structural forms), Disks, Black(Color), Apertures, Optics, Collection, Assembly

Subject Categories : Test Facilities, Equipment and Methods
      Optics
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE