Control device and process for the contactless control of a unit

Details Control device and process for the contactless control of a unit Control device and process for the contactless control of a unit

1995-03-01

1997-09-16

Le, Que

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

2502221, 340556, H01J 4014

Patent

active

056683669

ABSTRACT:
An electronic control device for the contactless control of a unit, e.g., a plumbing unit, especially a urinal, with at least one transmitter for sending directed light signals, and with a receiving device. The receiving device receives signals reflected from a scanned object and sends them to a circuit acting on the unit. The transmitter and the receiving device form an optical triangulation arrangement, wherein reflections are received from the background and from a predetermined detection zone to mask the said background.

REFERENCES:
patent: 4733081 (1988-03-01), Mizukami
patent: 4879461 (1989-11-01), Philipp
patent: 4903009 (1990-02-01), D'Ambrosia et al.
patent: 4970384 (1990-11-01), Kambe et al.
patent: 4972070 (1990-11-01), Laverty, Jr.

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