CA879965A - Systeme de cellule photoelectrique - Google Patents

Systeme de cellule photoelectrique

Info

Publication number
CA879965A
CA879965A CA879965A CA56239A CA879965A CA 879965 A CA879965 A CA 879965A CA 879965 A CA879965 A CA 879965A CA 56239 A CA56239 A CA 56239A CA 879965 A CA879965 A CA 879965A
Authority
CA
Canada
Prior art keywords
photoelectrique
cellule
systeme
cellule photoelectrique
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.)
Expired
Application number
CA879965A
Inventor
Provost Claude
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.)
J A PROVOST Inc
Original Assignee
J A PROVOST Inc
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 J A PROVOST Inc filed Critical J A PROVOST Inc
Priority to CA879965A priority Critical patent/CA879965A/en
Application granted granted Critical
Publication of CA879965A publication Critical patent/CA879965A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/10—Detecting, e.g. by using light barriers
    • G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver
    • G01V8/14—Detecting, e.g. by using light barriers using one transmitter and one receiver using reflectors
    • 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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
CA879965A 1969-07-04 1969-07-04 Systeme de cellule photoelectrique Expired CA879965A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA879965A CA879965A (en) 1969-07-04 1969-07-04 Systeme de cellule photoelectrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA879965A CA879965A (en) 1969-07-04 1969-07-04 Systeme de cellule photoelectrique

Publications (1)

Publication Number Publication Date
CA879965A true CA879965A (en) 1971-08-31

Family

ID=4085432

Family Applications (1)

Application Number Title Priority Date Filing Date
CA879965A Expired CA879965A (en) 1969-07-04 1969-07-04 Systeme de cellule photoelectrique

Country Status (1)

Country Link
CA (1) CA879965A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2184896A1 (en) * 1972-05-18 1973-12-28 Sick Optik Elektronik Erwin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2184896A1 (en) * 1972-05-18 1973-12-28 Sick Optik Elektronik Erwin

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