Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1977-03-01
1979-03-27
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
356435, 356443, G01N 2130
Patent
active
041467981
ABSTRACT:
An ink feed measuring device comprising a luminuous plate and a light receiving plate constructed so as to hold a photographic film of a printed matter between the two plates, the luminuous plate having one or more electro-luminescent plates and the light receiving plate having a plurality of photoelectric elements corresponding to the sectioned areas of the photographic film, wherein ink feed volume corresponding to each sectioned area of the photographic film is measured based on the amount of light transmitted through the sectioned areas of the film.
REFERENCES:
patent: 2333759 (1943-11-01), Akelaitis
patent: 3241472 (1966-03-01), Robertson
patent: 3252035 (1966-05-01), Buck
patent: 3790275 (1974-02-01), Huboi et al.
Shiba Noriyuki
Yoshida Shu
Nelms David C.
Tokyo Kikai Seisakusho Ltd.
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