Accession Number : AD0663718

Title :   IMAGE SPECTRUM ANALYZER,

Corporate Author : AEROSPACE CORP EL SEGUNDO CALIF EL SEGUNDO TECHNICAL OPERATIONS

Personal Author(s) : Rosten,Philip

Report Date : APR 1967

Pagination or Media Count : 47

Abstract : A scanning device was developed for the purpose of recording a frequency power spectrum in a sample area of a photographic film in the form of a direct read-out. A rotary scanner, using an optical spot sufficiently small to obtain good modulation from a 250 line/mm target, was selected. The signal from the scanner was read out on a frequency analyzer which recorded the power spectrum as a chart trace. The wave form of the scanned film could also be studied in real-time as an oscilloscope trace for immediate analysis. Recorded frequency response at 500 lines/mm was 6 db above background from a random target. (Author)

Descriptors :   (*SPECTRUM ANALYZERS, OPTICAL IMAGES), POWER SPECTRA, PHOTOGRAPHIC FILM, OPTICAL SCANNING, CALIBRATION, FREQUENCY, LIGHT, INTEGRAL TRANSFORMS, PHOTOGRAPHIC IMAGES, INSTRUMENTATION, LASERS, SOURCES

Subject Categories : Test Facilities, Equipment and Methods
      Photography
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE