Aero-optics at shorter wavelengths
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Author
Contributions
- Naval Postgraduate School (U.S.) - Contributor
Publication
1980 - Naval Postgraduate School, Monterey, California, California
Language
English
Word Count
5,750 words, Guess
Page Count
23 pages
Identifiers
- Internet Archiveaeroopticsatshor00fuhs
- OCLC Control Number82221286
- Open LibraryOL25510798M
Description
Using the optical system equation, the impact of a change in wavelength is determined. The rms phase variation at output aperture is critical and must be reduced by an amount equivalent to reduction in wavelength. If turret size is scaled with wavelength, the distortion due to the inviscid flow remains constant. Decreased wavelength offers the flexibility of greatly reduced turret weight, volume, and aerodynamic drag. Multiple turrets become feasible on an aircraft. The distortion due to the turbulent boundary layer becomes magnified by reduction of wavelength; however, if the turbulent boundary layer originates on the turret and if the turret is scaled, the boundary layer thickness decreases. Distortion becomes less significant in this case.
Subjects
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