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Proceedings Paper

New inline field tester on visual distance of night vision instrument with faint light
Author(s): Zhibin Chen; Yong Zhang
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Paper Abstract

An important problem in-line visual distance testing of night vision instrument with faint light under the condition of field environment is put forward on the basis of practical use in this paper. Based on theoretical analysis through visual distance evaluation, some key parameter which affects visual distance testing are pointed out. And practically mathematical model used to evaluate visual distance is built up. Some problems which require the instrument with small volume, lightweight, long focal length of parallel light pipe to simulate target and high quality imagery etc. have been solved by using Carthegreen's design techniques, faint light luminous devices and high accuracy processing technology to resolve pattern etc. in this instrument. Also, by adding lightproof black cavity and using computer testing technique, the testing accuracy and computerization is greatly improved.

Paper Details

Date Published: 10 August 1998
PDF: 4 pages
Proc. SPIE 3558, Automated Optical Inspection for Industry: Theory, Technology, and Applications II, (10 August 1998); doi: 10.1117/12.318372
Show Author Affiliations
Zhibin Chen, none (China)
Yong Zhang, none (China)


Published in SPIE Proceedings Vol. 3558:
Automated Optical Inspection for Industry: Theory, Technology, and Applications II
Shenghua Ye, Editor(s)

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