Light barrier with feedback control

Details Light barrier with feedback control Light barrier with feedback control

2011-07-05

2011-07-05

Sohn, Seung C (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S222100, C250S208400, C340S556000

Reexamination Certificate

active

07973273

ABSTRACT:
The present invention relates to a light barrier for the monitoring of a light path having a base assembly of a first transmitter emitting a light signal and a first receiver generating an output signal for a control. In accordance with the invention, the light barrier has an active reflector assembly having a second receiver for the reception of the light signal emitted by the first transmitter and a second transmitter for the transmission of a feedback signal in dependence on the received light signal.

REFERENCES:
patent: 3746863 (1973-07-01), Pronovost
patent: 3932742 (1976-01-01), Freudenschuss et al.
patent: 3972021 (1976-07-01), Leitz et al.
patent: 1294856 (1969-05-01), None
patent: 100 18 948 (2000-11-01), None
patent: 10 2007 024210 (2008-11-01), None
patent: 20 2007 014 387 (2009-02-01), None
patent: 0391883 (1995-06-01), None
patent: 2012144 (2009-01-01), None

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