Pulsating infrared radiation source
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United States of America Patent
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Jun 15, 1993
Grant Date -
N/A
app pub date -
Nov 21, 1991
filing date -
May 26, 1989
priority date (Note) -
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Abstract
Pulsating infrared radiation source 50, which is so thin as to make its thermally stored energy less than the energy radiated during each pulse. This makes the source cooled by its own heat emission. Such sources have thicknesses commensurate with the wavelengths of infrared radiation. To avoid interference effects, the source's optical thickness may be made to equal a multiple of half wavelengths of the desired radiation. With the source mounted in a housing 53, efficient radiative cooling is obtained using windows 54 and 55 to each side. This makes it possible to extract infrared radiation from either face of the source.
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