Opto-electronic sensor

Details Opto-electronic sensor Opto-electronic sensor

1997-04-18

2000-07-18

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Ultraviolet light responsive means

250373, 250365, 2503601, 2503581, 250301, 436 1, 422 55, G01N 2190

Patent

active

060910712

ABSTRACT:
An opto-electronic sensor for recognizing transparent articles, such as, for example, glass bodies, plastic bodies, or foils. The sensor includes at least one transmitter for transmitting light signals into a monitored region, at least one receiver for receiving the transmitted light signals, and at least one evaluation unit for the evaluation of the received signals. The transmitter is designed for the transmission of the light signals in the UV range. At least one reference transmitter is provided for the transmission of light signals into the monitored region. The light signals transmitted by the reference transmitter lie in a different frequency range from the light signals transmitted by the transmitter.

REFERENCES:
patent: 4359640 (1982-11-01), Geiger
patent: 5134278 (1992-07-01), Nelen
patent: 5327356 (1994-07-01), Lang et al.
patent: 5331167 (1994-07-01), Hoshino et al.
patent: 5436459 (1995-07-01), Koch et al.
patent: 5498872 (1996-03-01), Steadman
patent: 5663791 (1997-09-01), Smith

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