Automatic focusing system for a flying-spot scanner
作者： Gilbert L Hobrough
DOI:
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摘要:
lens.org 参考文章(4)
Hans W Salinger, Focusing adjusting system ,(1952)
Beers George L, Television pickup control system ,(1945)
Arthur H Mankin, Automatic focus control for cathode-ray tubes ,(1947)
Frank N Gillette, Automatic focusing system ,(1958)