Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1982-01-07
1984-07-03
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
358106, 356431, 250341, G01N 2132, H04N 718
Patent
active
044581556
ABSTRACT:
A hot casting, freshly emerging from the mold, is inspected for any surface defects by a revolving line scan camera; the camera is disposed in an annular water-cooled, two-part housing having an inwardly directed annular gap covered by a sheet that revolves with the camera; the camera can look through a small gap of that sheet.
REFERENCES:
patent: 4020949 (1977-05-01), Erdman
patent: 4328488 (1982-05-01), Yhnai et al.
Gruner Hans
Parschat Lothar
Pleschiutschnigg Fritz-Peter
Schrewe Hans
Austin II Ernest
Mannesmann AG
Nelms David C.
Siegemund Ralf H.
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