GB8927405D0 - Laser security system - Google Patents

Laser security system

Info

Publication number
GB8927405D0
GB8927405D0 GB898927405A GB8927405A GB8927405D0 GB 8927405 D0 GB8927405 D0 GB 8927405D0 GB 898927405 A GB898927405 A GB 898927405A GB 8927405 A GB8927405 A GB 8927405A GB 8927405 D0 GB8927405 D0 GB 8927405D0
Authority
GB
United Kingdom
Prior art keywords
security system
laser security
laser
security
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.)
Withdrawn
Application number
GB898927405A
Other versions
GB2226134A (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.)
FOULKES THOMAS L
Original Assignee
FOULKES THOMAS L
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 FOULKES THOMAS L filed Critical FOULKES THOMAS L
Publication of GB8927405D0 publication Critical patent/GB8927405D0/en
Publication of GB2226134A publication Critical patent/GB2226134A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
GB8927405A 1988-12-02 1989-12-04 Laser beam security barrier Withdrawn GB2226134A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888828202A GB8828202D0 (en) 1988-12-02 1988-12-02 Laser security system

Publications (2)

Publication Number Publication Date
GB8927405D0 true GB8927405D0 (en) 1990-01-31
GB2226134A GB2226134A (en) 1990-06-20

Family

ID=10647873

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888828202A Pending GB8828202D0 (en) 1988-12-02 1988-12-02 Laser security system
GB8927405A Withdrawn GB2226134A (en) 1988-12-02 1989-12-04 Laser beam security barrier

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB888828202A Pending GB8828202D0 (en) 1988-12-02 1988-12-02 Laser security system

Country Status (1)

Country Link
GB (2) GB8828202D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7119680B2 (en) 2003-12-11 2006-10-10 At&T Corp. FSOC/radio intrusion detection system
ITVI20040192A1 (en) 2004-07-30 2004-10-30 Astron Fiamm Safety S A INTEGRATED TRAFFIC SAFETY SYSTEM, PARTICULARLY IN LOW VISIBILITY CONDITIONS, AND METHOD OF USE OF SUCH SYSTEM

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3623057A (en) * 1969-05-14 1971-11-23 Phinizy R B Laser perimeter intrusion detection system
US3688298A (en) * 1970-05-13 1972-08-29 Security Systems Inc Property protection system employing laser light
US3711846A (en) * 1971-02-08 1973-01-16 Holobeam Segment locating intrusion alarm system
US3739372A (en) * 1971-10-27 1973-06-12 Holobeam Optical intrusion alarm system
US3898639A (en) * 1972-08-24 1975-08-05 Hrand M Muncheryan Security surveillance laser system
US3825916A (en) * 1972-10-20 1974-07-23 California Crime Technological Laser fence
US3965355A (en) * 1974-10-23 1976-06-22 Maccabee Bruce S Low power infrared laser intrusion systems
US3987428A (en) * 1975-06-16 1976-10-19 The Raymond Lee Organization, Inc. Optical laser security system
GB2108743B (en) * 1981-11-09 1986-09-10 Hughes Technology Pty Ltd Laser security system
WO1984004986A1 (en) * 1983-06-03 1984-12-20 Hughes Technology Pty Ltd A multi-laser security curtain
DE3707978C1 (en) * 1987-03-12 1988-03-17 Sick Optik Elektronik Erwin Light curtain

Also Published As

Publication number Publication date
GB8828202D0 (en) 1989-01-05
GB2226134A (en) 1990-06-20

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)