FR2293698A1 - Detecteur de presence d'objets par emission d'infrarouges - Google Patents

Detecteur de presence d'objets par emission d'infrarouges

Info

Publication number
FR2293698A1
FR2293698A1 FR7439724A FR7439724A FR2293698A1 FR 2293698 A1 FR2293698 A1 FR 2293698A1 FR 7439724 A FR7439724 A FR 7439724A FR 7439724 A FR7439724 A FR 7439724A FR 2293698 A1 FR2293698 A1 FR 2293698A1
Authority
FR
France
Prior art keywords
detector
signal treatment
signal
emission
diode emitter
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.)
Granted
Application number
FR7439724A
Other languages
English (en)
Other versions
FR2293698B3 (fr
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.)
GRENOBLE SARL SEAT
Original Assignee
GRENOBLE SARL SEAT
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 GRENOBLE SARL SEAT filed Critical GRENOBLE SARL SEAT
Priority to FR7439724A priority Critical patent/FR2293698A1/fr
Publication of FR2293698A1 publication Critical patent/FR2293698A1/fr
Application granted granted Critical
Publication of FR2293698B3 publication Critical patent/FR2293698B3/fr
Granted 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

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
FR7439724A 1974-12-04 1974-12-04 Detecteur de presence d'objets par emission d'infrarouges Granted FR2293698A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7439724A FR2293698A1 (fr) 1974-12-04 1974-12-04 Detecteur de presence d'objets par emission d'infrarouges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7439724A FR2293698A1 (fr) 1974-12-04 1974-12-04 Detecteur de presence d'objets par emission d'infrarouges

Publications (2)

Publication Number Publication Date
FR2293698A1 true FR2293698A1 (fr) 1976-07-02
FR2293698B3 FR2293698B3 (fr) 1977-08-26

Family

ID=9145555

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7439724A Granted FR2293698A1 (fr) 1974-12-04 1974-12-04 Detecteur de presence d'objets par emission d'infrarouges

Country Status (1)

Country Link
FR (1) FR2293698A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0988779A1 (fr) * 1998-09-23 2000-03-29 Dickey-john Corporation Dispositif pour détecter/compter des articles qui réflechissent l'infrarouge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0988779A1 (fr) * 1998-09-23 2000-03-29 Dickey-john Corporation Dispositif pour détecter/compter des articles qui réflechissent l'infrarouge
US6373057B1 (en) 1998-09-23 2002-04-16 Dickey-John Corporation Infrared reflective article counting/detecting device

Also Published As

Publication number Publication date
FR2293698B3 (fr) 1977-08-26

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Legal Events

Date Code Title Description
ST Notification of lapse