[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

FR2603386B1 - Procede et appareil de surveillance par recoupement de faisceaux lumineux - Google Patents

Procede et appareil de surveillance par recoupement de faisceaux lumineux

Info

Publication number
FR2603386B1
FR2603386B1 FR8612394A FR8612394A FR2603386B1 FR 2603386 B1 FR2603386 B1 FR 2603386B1 FR 8612394 A FR8612394 A FR 8612394A FR 8612394 A FR8612394 A FR 8612394A FR 2603386 B1 FR2603386 B1 FR 2603386B1
Authority
FR
France
Prior art keywords
monitoring
light beams
overlaying light
overlaying
beams
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
FR8612394A
Other languages
English (en)
Other versions
FR2603386A1 (fr
Inventor
Enzo Di Benedetto
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.)
COMETA SA
Original Assignee
COMETA SA
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 COMETA SA filed Critical COMETA SA
Priority to FR8612394A priority Critical patent/FR2603386B1/fr
Publication of FR2603386A1 publication Critical patent/FR2603386A1/fr
Application granted granted Critical
Publication of FR2603386B1 publication Critical patent/FR2603386B1/fr
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
    • G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Electric Clocks (AREA)
FR8612394A 1986-09-03 1986-09-03 Procede et appareil de surveillance par recoupement de faisceaux lumineux Expired FR2603386B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8612394A FR2603386B1 (fr) 1986-09-03 1986-09-03 Procede et appareil de surveillance par recoupement de faisceaux lumineux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8612394A FR2603386B1 (fr) 1986-09-03 1986-09-03 Procede et appareil de surveillance par recoupement de faisceaux lumineux

Publications (2)

Publication Number Publication Date
FR2603386A1 FR2603386A1 (fr) 1988-03-04
FR2603386B1 true FR2603386B1 (fr) 1989-03-10

Family

ID=9338674

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8612394A Expired FR2603386B1 (fr) 1986-09-03 1986-09-03 Procede et appareil de surveillance par recoupement de faisceaux lumineux

Country Status (1)

Country Link
FR (1) FR2603386B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3803033A1 (de) * 1988-02-02 1989-08-10 Sick Erwin Gmbh Lichtschrankengitter
DE102008056458A1 (de) * 2007-11-07 2009-07-23 Cedes Ag System zur Festellung eines Objekts in einer Überwachungsfläche

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3805061A (en) * 1973-04-23 1974-04-16 Tyco Laboratories Inc Object detecting apparatus
US3970846A (en) * 1973-10-29 1976-07-20 Xenex Corporation Presence detecting system with self-checking
DE2424013A1 (de) * 1974-05-17 1975-11-27 Endl Gmbh & Co Elektronik Anordnung zur verkettung beruehrungsloser melde- und schutzeinrichtungen
SE456952B (sv) * 1982-12-16 1988-11-14 Innovationsteknik Inst Ab Mikrodatorstyrd ljusridaa

Also Published As

Publication number Publication date
FR2603386A1 (fr) 1988-03-04

Similar Documents

Publication Publication Date Title
PT84365A (fr) Procede et appareil d:extrusion
BE887806A (fr) Appareil et procede de photometrie
FR2603475B3 (fr) Appareil et procede d'evacuation de la fumee d'un laser
FR2551222B1 (fr) Appareil et procede de diagraphie
FR2485734B1 (fr) Procede et appareil de detection de defauts
IT1248623B (it) Apparato e metodo per monitorizzare potenza
FR2632230B1 (fr) Procede et appareillage de rivetage
BE881016A (fr) Procede et appareil de calcination
FR2607354B1 (fr) Procede et dispositif de pollinisation
FR2606498B1 (fr) Procede et appareil de sechage de plaquettes par centrifugation
FR2569837B1 (fr) Procede et appareil de production d'un faisceau d'energie
FR2492297B1 (fr) Procede et appareil de forage par electro-erosion
FR2562086B1 (fr) Appareil de surveillance de micro-organismes
BE885938A (fr) Procede et appareil de forgeage
FR2640786B1 (fr) Procede et appareillage de surveillance automatique d'un site
FR2506018B1 (fr) Procede et appareil de controle d'articles en forme de tiges
BE865376A (fr) Procede et appareil pour la fabrication de non-tisses
FR2600806B1 (fr) Procede et appareil de detection de signal de commande
FR2602444B1 (fr) Procede et appareil de reglage d'une atmosphere de soudage
FR2597290B1 (fr) Procede et appareil de fabrication de faisceaux de conducteurs
FR2613559B1 (fr) Appareil de modulation par impulsions codees differentielle et son procede de fonctionnement
FR2653301B1 (fr) Procede et dispositif de bridage industriel de volailles.
FR2533155B1 (fr) Appareil et procede de soudage en bout par etincelage
BE871554R (fr) Procede et dispositif pour la surveillance de courts-circuits
BE865542A (fr) Procede et dispositif pour la surveillance de courts-circuits

Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse