Accession Number : ADD014211

Title :   Interferometric Surface Distortion Detector.

Descriptive Note : Patent Application, Filed 20 Apr 89,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Scotese, Arthur E ; Huang, Shih L ; Gaetano, Armando J

Report Date : 20 Apr 1989

Pagination or Media Count : 14

Abstract : Portable shadow moire apparatus is disclosed for indiscriminately manipulating the grid and light source thereof over a specimen surface, with the grid oriented substantially in parallel therewith and in close proximity thereto. Self aligning support is provided on such apparatus, along with height adjustability for that support. Utilization of very high density grids is made possible by such apparatus to enhance the detection sensitivity thereof. Light source direction variability is also provided to control the magnitude of detectable distortion. Patent applications. (JHD)

Descriptors :   *OPTICAL DETECTORS, *INTERFEROMETRY, *PATENT APPLICATIONS, *MOIRE EFFECTS, OPTICAL DETECTION, DISTORTION, GRIDS, HIGH DENSITY, LIGHT SOURCES, SENSITIVITY, SURFACES, VARIATIONS

Subject Categories : Test Facilities, Equipment and Methods
      Air Condition, Heating, Lighting & Ventilating

Distribution Statement : APPROVED FOR PUBLIC RELEASE