GB1524564A - Apparatus for detecting the presence of objects in light beams - Google Patents

Apparatus for detecting the presence of objects in light beams

Info

Publication number
GB1524564A
GB1524564A GB38096/75A GB3809675A GB1524564A GB 1524564 A GB1524564 A GB 1524564A GB 38096/75 A GB38096/75 A GB 38096/75A GB 3809675 A GB3809675 A GB 3809675A GB 1524564 A GB1524564 A GB 1524564A
Authority
GB
United Kingdom
Prior art keywords
output
light
photo
connector
pulses
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
GB38096/75A
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.)
TELUB AB
Original Assignee
TELUB AB
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 TELUB AB filed Critical TELUB AB
Publication of GB1524564A publication Critical patent/GB1524564A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • G01B11/245—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures using a plurality of fixed, simultaneously operating transducers
    • 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)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Geophysics And Detection Of Objects (AREA)
GB38096/75A 1974-09-20 1975-09-16 Apparatus for detecting the presence of objects in light beams Expired GB1524564A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7411856A SE385746B (sv) 1974-09-20 1974-09-20 Anordning for detektering av ett i en ljusrida inforbart objekt

Publications (1)

Publication Number Publication Date
GB1524564A true GB1524564A (en) 1978-09-13

Family

ID=20322190

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38096/75A Expired GB1524564A (en) 1974-09-20 1975-09-16 Apparatus for detecting the presence of objects in light beams

Country Status (5)

Country Link
CH (1) CH592929A5 (enExample)
DE (1) DE2541846A1 (enExample)
GB (1) GB1524564A (enExample)
NL (1) NL7511114A (enExample)
SE (1) SE385746B (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177503A (en) * 1985-06-12 1987-01-21 John Peter Hughes Guard system
GB2180642A (en) * 1985-08-29 1987-04-01 Hochiki Co Counting the number of moving bodies
WO1988000745A1 (en) * 1986-07-24 1988-01-28 Keith Jeffrey Gate Detection system
GB2221294A (en) * 1988-07-26 1990-01-31 Formula Systems Ltd Detection circuitry
CN116381810A (zh) * 2023-03-08 2023-07-04 浙江联和机电科技有限公司 光幕接收装置和光幕发射装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2648631C2 (de) * 1976-10-27 1986-07-10 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Lichtelektrische Schranke mit Paaren von lichtelektrischen Sendern und Empfängern
DE3208527C2 (de) * 1981-04-11 1985-06-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Einrichtung zum Steuern von Arbeitsgeräten, insbesondere von Gebläsen, Bürsten, Düsen oder dgl. in einer automatischen Fahrzeugwaschanlage
SE456952B (sv) * 1982-12-16 1988-11-14 Innovationsteknik Inst Ab Mikrodatorstyrd ljusridaa

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177503A (en) * 1985-06-12 1987-01-21 John Peter Hughes Guard system
GB2180642A (en) * 1985-08-29 1987-04-01 Hochiki Co Counting the number of moving bodies
WO1988000745A1 (en) * 1986-07-24 1988-01-28 Keith Jeffrey Gate Detection system
GB2221294A (en) * 1988-07-26 1990-01-31 Formula Systems Ltd Detection circuitry
WO1990001173A1 (en) * 1988-07-26 1990-02-08 Formula Systems Limited Detection circuitry
US5053616A (en) * 1988-07-26 1991-10-01 Formula Systems Limited Photoelectric array detection circuitry with dual gating means
GB2221294B (en) * 1988-07-26 1993-03-03 Formula Systems Ltd Detection circuitry
CN116381810A (zh) * 2023-03-08 2023-07-04 浙江联和机电科技有限公司 光幕接收装置和光幕发射装置

Also Published As

Publication number Publication date
NL7511114A (nl) 1976-03-23
DE2541846A1 (de) 1976-04-08
SE385746B (sv) 1976-07-19
SE7411856L (sv) 1976-03-22
CH592929A5 (enExample) 1977-11-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee