The components of a night viewer using infra-red radiation are noted as an external objective, pick-up screen, detector, cooler, pre-amplifier and main amplifier, light-emitting diode display and ocular lens. The most novel item in the arrangement is the detector which takes the form of a small window of special alloy material, typically InSb, HgCdTe or PbSnTe. The cooler uses a liquid nitrogen circuit, using a thermodynamic cycle incorporating the Joule-Thomson effect. Some applications in military, civil and industrial fields are quoted, and sample pictures illustrated.
Principles of infra-red night viewers
Funktionsprinzipien von IR-Nachtsichtgeraeten
Titel niederlaendisch
Polytechnisch Tijdschrift. Editie Elektrotechniek, Elektronica ; 33 , 5 ; 257-261
1978
5 Seiten
Article (Journal)
Dutch
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