Apparatus for identifying articles from received illumination wi

Details Apparatus for identifying articles from received illumination wi Apparatus for identifying articles from received illumination wi

1986-09-15

1988-05-17

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

250223R, G01J 132, G01N 904, G06M 700

Patent

active

047452722

ABSTRACT:
A system for identifying articles in accordance with light transmission through the article includes a light sensor which provides a signal indicative of the light transmission. A circuit responds to the signal and provides an output in accordance with the transmission levels. The output is provided to a control to identify the article and to adjust the illumination level to the article.

REFERENCES:
patent: 3980180 (1976-09-01), Jamieson
patent: 4118654 (1978-10-01), Ohta et al.
patent: 4266675 (1981-05-01), Barwise et al.
patent: 4315245 (1982-02-01), Nakahara et al.
patent: 4406530 (1983-09-01), Hasegawa et al.
patent: 4525735 (1985-06-01), Krufka
patent: 4625871 (1986-12-01), Satake
patent: 4693378 (1987-09-01), Azegami et al.

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