GB2108743B - Laser security system - Google Patents

Laser security system

Info

Publication number
GB2108743B
GB2108743B GB08231636A GB8231636A GB2108743B GB 2108743 B GB2108743 B GB 2108743B GB 08231636 A GB08231636 A GB 08231636A GB 8231636 A GB8231636 A GB 8231636A GB 2108743 B GB2108743 B GB 2108743B
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.)
Expired
Application number
GB08231636A
Other versions
GB2108743A (en
Inventor
John Leonard Hughes
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.)
Hughes Technology Pty Ltd
Original Assignee
Hughes Technology Pty Ltd
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 Hughes Technology Pty Ltd filed Critical Hughes Technology Pty Ltd
Publication of GB2108743A publication Critical patent/GB2108743A/en
Application granted granted Critical
Publication of GB2108743B publication Critical patent/GB2108743B/en
Expired 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
    • 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)
  • Burglar Alarm Systems (AREA)
GB08231636A 1981-11-09 1982-11-05 Laser security system Expired GB2108743B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU148481 1981-11-09
AU394282 1982-05-10

Publications (2)

Publication Number Publication Date
GB2108743A GB2108743A (en) 1983-05-18
GB2108743B true GB2108743B (en) 1986-09-10

Family

ID=25609161

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08231636A Expired GB2108743B (en) 1981-11-09 1982-11-05 Laser security system

Country Status (1)

Country Link
GB (1) GB2108743B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2147441A (en) * 1983-09-16 1985-05-09 Frank James Tough Intruder alarm systems
GB8828202D0 (en) * 1988-12-02 1989-01-05 Laser & Aerospace Consultants Laser security system
FR2757980B1 (en) * 1996-12-26 1999-03-05 Sarl Scmd ELECTROSENSITIVE ACCESS CONTROL DEVICE
US6354716B1 (en) * 2000-08-04 2002-03-12 Honeywell International Inc Light curtain device
WO2007034496A2 (en) * 2005-09-26 2007-03-29 Shmuel Shaked Deflected light beam network barrier

Also Published As

Publication number Publication date
GB2108743A (en) 1983-05-18

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee