FR2290717A1 - Dispositif pour la detection par faisceaux optiques commandant des circuits logiques pour assurer une securite inviolable - Google Patents

Dispositif pour la detection par faisceaux optiques commandant des circuits logiques pour assurer une securite inviolable

Info

Publication number
FR2290717A1
FR2290717A1 FR7440181A FR7440181A FR2290717A1 FR 2290717 A1 FR2290717 A1 FR 2290717A1 FR 7440181 A FR7440181 A FR 7440181A FR 7440181 A FR7440181 A FR 7440181A FR 2290717 A1 FR2290717 A1 FR 2290717A1
Authority
FR
France
Prior art keywords
security
detector
optical
light beams
responsive
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Withdrawn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
FR7440181A
Other languages
English (en)
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.)
SAINT LOUP JEAN
Original Assignee
SAINT LOUP JEAN
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 SAINT LOUP JEAN filed Critical SAINT LOUP JEAN
Priority to FR7440181A priority Critical patent/FR2290717A1/fr
Publication of FR2290717A1 publication Critical patent/FR2290717A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
    • F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
    • F16P3/12—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine
    • F16P3/14—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact
    • F16P3/144—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact using light grids
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
FR7440181A 1974-11-05 1974-11-05 Dispositif pour la detection par faisceaux optiques commandant des circuits logiques pour assurer une securite inviolable Withdrawn FR2290717A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7440181A FR2290717A1 (fr) 1974-11-05 1974-11-05 Dispositif pour la detection par faisceaux optiques commandant des circuits logiques pour assurer une securite inviolable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7440181A FR2290717A1 (fr) 1974-11-05 1974-11-05 Dispositif pour la detection par faisceaux optiques commandant des circuits logiques pour assurer une securite inviolable

Publications (1)

Publication Number Publication Date
FR2290717A1 true FR2290717A1 (fr) 1976-06-04

Family

ID=9145731

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7440181A Withdrawn FR2290717A1 (fr) 1974-11-05 1974-11-05 Dispositif pour la detection par faisceaux optiques commandant des circuits logiques pour assurer une securite inviolable

Country Status (1)

Country Link
FR (1) FR2290717A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987004259A1 (fr) * 1986-01-13 1987-07-16 Data Instruments Inc. Systeme de detection d'intrusions dans des machines industrielles en fonctionnement
US4818866A (en) * 1986-01-13 1989-04-04 Data Instruments, Inc. Intrusion detection system for operating industrial machines with variable sensitivity

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987004259A1 (fr) * 1986-01-13 1987-07-16 Data Instruments Inc. Systeme de detection d'intrusions dans des machines industrielles en fonctionnement
US4818866A (en) * 1986-01-13 1989-04-04 Data Instruments, Inc. Intrusion detection system for operating industrial machines with variable sensitivity

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Legal Events

Date Code Title Description
ST Notification of lapse