PHOTHIC RECONNAISSANCE TERRAIN ILLUMINANTS.
Abstract
This investigatory work was directed toward the achievement of liquid-cooled tubular xenon sources suitable for use as continuous (d-c) sources for night terrain illumination. The most useful lamp-reflector design for night aerial strip photography should produce a rectangular beam of light whose intensity is contoured over its cross section in such a way as to produce uniform exposure over the extremes of the film plate. It is shown that by introducing a cylindrical parabolic reflector with a line source mounted at its focus, light can easily be directed into a rectangular beam. Work was done on the design of a water-cooled 7-mm bore, 3-in. arc length lamp. Investigation was also made into the material and configuration for suitable electrodes, low RFI starting methods, spectral measurement of the output of such a lamp, and the design and fabrication of a tailored beam reflector.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 1964
- Accession Number
- AD0607704
Entities
People
- A. B. White
- P. Bruce Newell
Organizations
- EG&G