DD131409A1 - Licht-oder infrarot-schrankensystem - Google Patents

Licht-oder infrarot-schrankensystem

Info

Publication number
DD131409A1
DD131409A1 DD20089177A DD20089177A DD131409A1 DD 131409 A1 DD131409 A1 DD 131409A1 DD 20089177 A DD20089177 A DD 20089177A DD 20089177 A DD20089177 A DD 20089177A DD 131409 A1 DD131409 A1 DD 131409A1
Authority
DD
German Democratic Republic
Prior art keywords
light
locking system
infrared locking
infrared
locking
Prior art date
Application number
DD20089177A
Other languages
German (de)
English (en)
Inventor
Tomas Vacha
Original Assignee
Prerovske Strojirny Np
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 Prerovske Strojirny Np filed Critical Prerovske Strojirny Np
Publication of DD131409A1 publication Critical patent/DD131409A1/xx

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)
  • Burglar Alarm Systems (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Optical Communication System (AREA)
DD20089177A 1976-09-08 1977-09-05 Licht-oder infrarot-schrankensystem DD131409A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS581276A CS183859B1 (en) 1976-09-08 1976-09-08 Directional flat-light or infraprotecting mains transmitters and recrivers arrangement

Publications (1)

Publication Number Publication Date
DD131409A1 true DD131409A1 (de) 1978-06-21

Family

ID=5403718

Family Applications (1)

Application Number Title Priority Date Filing Date
DD20089177A DD131409A1 (de) 1976-09-08 1977-09-05 Licht-oder infrarot-schrankensystem

Country Status (5)

Country Link
CS (1) CS183859B1 (cs)
DD (1) DD131409A1 (cs)
DE (1) DE2740069A1 (cs)
GB (1) GB1561424A (cs)
PL (1) PL110999B2 (cs)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2842007B1 (fr) * 2002-07-08 2004-08-27 Schneider Electric Ind Sa Barriere lumineuse
US6872932B2 (en) 2003-07-23 2005-03-29 Schneider Electric Industries Sas Light curtain

Also Published As

Publication number Publication date
PL110999B2 (en) 1980-08-30
DE2740069A1 (de) 1978-03-09
PL200451A1 (pl) 1978-04-10
CS183859B1 (en) 1978-07-31
GB1561424A (en) 1980-02-20

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Legal Events

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