New apparent distance-detecting equation for low-light-level imaging system

The fundamental conception of the detection range of a low-light-level imaging system is described. Based on the common apparent distance detecting equation, a more practicable and reliable equation is established by using factors such as atmospheric transmissivity, spectral matching factor, and so...

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Bibliographic Details
Published in:Optical Engineering 2004-02, Vol.43 (2), p.415-419
Main Authors: Liu, Lei, Chang, Benkang
Format: Article
Language:English
Subjects:
apparent distance detecting equation
atmospheric transmissivity
low-light-level night vision system
photocathode
spectral matching factor
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Summary:The fundamental conception of the detection range of a low-light-level imaging system is described. Based on the common apparent distance detecting equation, a more practicable and reliable equation is established by using factors such as atmospheric transmissivity, spectral matching factor, and so on. The relations of these parameters, which have an influence on performance of the system, are analyzed. Finally, some approaches are proposed for better estimates of the field performance and optimization of the design of night vision system. ©
ISSN:0091-3286
1560-2303
DOI:10.1117/1.1637610