EP0388352A1 - Dispositif pour barrière optique à une seule direction - Google Patents

Dispositif pour barrière optique à une seule direction Download PDF

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Publication number
EP0388352A1
EP0388352A1 EP90810116A EP90810116A EP0388352A1 EP 0388352 A1 EP0388352 A1 EP 0388352A1 EP 90810116 A EP90810116 A EP 90810116A EP 90810116 A EP90810116 A EP 90810116A EP 0388352 A1 EP0388352 A1 EP 0388352A1
Authority
EP
European Patent Office
Prior art keywords
transmitters
transmitter
light barrier
receivers
receiver
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP90810116A
Other languages
German (de)
English (en)
Inventor
Rainer Dipl.-Ing. Schön
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Elesta AG
Original Assignee
Elesta AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Elesta AG filed Critical Elesta AG
Publication of EP0388352A1 publication Critical patent/EP0388352A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
    • G08B13/183—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/18—Prevention or correction of operating errors
EP90810116A 1989-03-15 1990-02-19 Dispositif pour barrière optique à une seule direction Withdrawn EP0388352A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH95889 1989-03-15
CH958/89 1989-03-15

Publications (1)

Publication Number Publication Date
EP0388352A1 true EP0388352A1 (fr) 1990-09-19

Family

ID=4199132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90810116A Withdrawn EP0388352A1 (fr) 1989-03-15 1990-02-19 Dispositif pour barrière optique à une seule direction

Country Status (1)

Country Link
EP (1) EP0388352A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0629370A1 (fr) * 1993-06-11 1994-12-21 Solar Wide Industrial Ltd. Dispositif de surveillance
FR2801401A1 (fr) * 1999-03-17 2001-05-25 British Telecomm Systeme de detection
EP2012144A1 (fr) * 2007-07-05 2009-01-07 Sick Ag Grille lumineuse et procédé destiné au fonctionnement d'une grille lumineuse

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3440427A (en) * 1966-04-12 1969-04-22 Philips Corp Remote control system with a unitary cell bridge circuit
DE2014107A1 (de) * 1970-03-24 1971-10-14 Sarl Thevon Freres Lichtschranke
EP0200186A2 (fr) * 1985-04-30 1986-11-05 Cerberus Ag Barrière photoélectrique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3440427A (en) * 1966-04-12 1969-04-22 Philips Corp Remote control system with a unitary cell bridge circuit
DE2014107A1 (de) * 1970-03-24 1971-10-14 Sarl Thevon Freres Lichtschranke
EP0200186A2 (fr) * 1985-04-30 1986-11-05 Cerberus Ag Barrière photoélectrique

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0629370A1 (fr) * 1993-06-11 1994-12-21 Solar Wide Industrial Ltd. Dispositif de surveillance
FR2801401A1 (fr) * 1999-03-17 2001-05-25 British Telecomm Systeme de detection
FR2801400A1 (fr) * 1999-03-17 2001-05-25 British Telecomm Systeme de detection
EP2012144A1 (fr) * 2007-07-05 2009-01-07 Sick Ag Grille lumineuse et procédé destiné au fonctionnement d'une grille lumineuse

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