10 August 1998 Television automatic video-line tester
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The linearity of telescope video-line is an important character for geodetic instruments and micrometer- telescopes. The instrument of 1 inch video-line tester, invented by University of Shanghai for Science and Technology, has been adopted in related instrument criterion and national metering regulation. But in optical and chemical reading with visual alignment, it can cause subjective error and can not give detailed data and so on. In this paper, the author put forward an improvement for video-line tester by using CCD for TV camera, displaying and processing CCD signal through computer, and auto-testing, with advantage of objectivity, reliability, rapid speed and less focusing error.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Zhaoxiang Ge, Zhaoxiang Ge, Dongsheng Tang, Dongsheng Tang, Binghua Feng, Binghua Feng, } "Television automatic video-line tester", Proc. SPIE 3558, Automated Optical Inspection for Industry: Theory, Technology, and Applications II, (10 August 1998); doi: 10.1117/12.318374; https://doi.org/10.1117/12.318374

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