FR2304128A1 - OPTICAL DEVICE FOR OPTICAL SAFETY BARRIERS - Google Patents

OPTICAL DEVICE FOR OPTICAL SAFETY BARRIERS

Info

Publication number
FR2304128A1
FR2304128A1 FR7508156A FR7508156A FR2304128A1 FR 2304128 A1 FR2304128 A1 FR 2304128A1 FR 7508156 A FR7508156 A FR 7508156A FR 7508156 A FR7508156 A FR 7508156A FR 2304128 A1 FR2304128 A1 FR 2304128A1
Authority
FR
France
Prior art keywords
optical
safety barriers
optical device
barriers
optical safety
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
FR7508156A
Other languages
French (fr)
Other versions
FR2304128B1 (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.)
JAY ELECTRONIQUE SA
Original Assignee
JAY ELECTRONIQUE 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 JAY ELECTRONIQUE SA filed Critical JAY ELECTRONIQUE SA
Priority to FR7508156A priority Critical patent/FR2304128A1/en
Priority to GB848376A priority patent/GB1517424A/en
Priority to IT2081076A priority patent/IT1056837B/en
Priority to DE19762609068 priority patent/DE2609068A1/en
Publication of FR2304128A1 publication Critical patent/FR2304128A1/en
Application granted granted Critical
Publication of FR2304128B1 publication Critical patent/FR2304128B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/12—Beam splitting or combining systems operating by refraction only
    • G02B27/123—The splitting element being a lens or a system of lenses, including arrays and surfaces with refractive power
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/12—Beam splitting or combining systems operating by refraction only
    • G02B27/126—The splitting element being a prism or prismatic array, including systems based on total internal reflection
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/143—Beam splitting or combining systems operating by reflection only using macroscopically faceted or segmented reflective surfaces
    • 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
    • G08B13/184—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 using radiation reflectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
FR7508156A 1975-03-14 1975-03-14 OPTICAL DEVICE FOR OPTICAL SAFETY BARRIERS Granted FR2304128A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7508156A FR2304128A1 (en) 1975-03-14 1975-03-14 OPTICAL DEVICE FOR OPTICAL SAFETY BARRIERS
GB848376A GB1517424A (en) 1975-03-14 1976-03-03 Optical device for an optical safety barrier
IT2081076A IT1056837B (en) 1975-03-14 1976-03-03 OPTICAL DEVICE FOR SAFETY OPTICAL BARRIER
DE19762609068 DE2609068A1 (en) 1975-03-14 1976-03-05 OPTICAL DEVICE FOR PROTECTIVE LIGHT BARRIERS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7508156A FR2304128A1 (en) 1975-03-14 1975-03-14 OPTICAL DEVICE FOR OPTICAL SAFETY BARRIERS

Publications (2)

Publication Number Publication Date
FR2304128A1 true FR2304128A1 (en) 1976-10-08
FR2304128B1 FR2304128B1 (en) 1979-01-05

Family

ID=9152627

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7508156A Granted FR2304128A1 (en) 1975-03-14 1975-03-14 OPTICAL DEVICE FOR OPTICAL SAFETY BARRIERS

Country Status (4)

Country Link
DE (1) DE2609068A1 (en)
FR (1) FR2304128A1 (en)
GB (1) GB1517424A (en)
IT (1) IT1056837B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520137A1 (en) * 1982-01-21 1983-07-22 Deude Rene Analog or digital optical detection system - uses LED's transmitting light to photodiodes in differential amplifier circuit providing output to analog=digital converter

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3139558C2 (en) * 1981-10-05 1987-05-27 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch V light barrier
EP0083431B1 (en) 1981-12-22 1986-03-12 Elesta Ag Elektronik Reflection light barrier with an extended detection range
DE4041363A1 (en) * 1990-12-20 1992-07-02 Hermann Gmbh Co Heinrich Transparent object detection arrangement for moving glass bottles - has two light barriers inclined at acute angle with logic circuit for combining their output signals
DE19730341A1 (en) * 1997-07-15 1999-01-21 Sick Ag Method for operating an opto-electronic sensor arrangement
DE29714438U1 (en) * 1997-08-12 1997-10-16 Sick AG, 79183 Waldkirch Photoelectric barrier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520137A1 (en) * 1982-01-21 1983-07-22 Deude Rene Analog or digital optical detection system - uses LED's transmitting light to photodiodes in differential amplifier circuit providing output to analog=digital converter

Also Published As

Publication number Publication date
GB1517424A (en) 1978-07-12
IT1056837B (en) 1982-02-20
FR2304128B1 (en) 1979-01-05
DE2609068A1 (en) 1976-09-23

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Legal Events

Date Code Title Description
ST Notification of lapse