FR2488429B1 - - Google Patents

Info

Publication number
FR2488429B1
FR2488429B1 FR8017517A FR8017517A FR2488429B1 FR 2488429 B1 FR2488429 B1 FR 2488429B1 FR 8017517 A FR8017517 A FR 8017517A FR 8017517 A FR8017517 A FR 8017517A FR 2488429 B1 FR2488429 B1 FR 2488429B1
Authority
FR
France
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
FR8017517A
Other languages
French (fr)
Other versions
FR2488429A1 (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.)
BLANCHON PATRICK
Original Assignee
BLANCHON PATRICK
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 BLANCHON PATRICK filed Critical BLANCHON PATRICK
Priority to FR8017517A priority Critical patent/FR2488429A1/en
Publication of FR2488429A1 publication Critical patent/FR2488429A1/en
Application granted granted Critical
Publication of FR2488429B1 publication Critical patent/FR2488429B1/fr
Granted 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
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/1895—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using light change detection systems
FR8017517A 1980-08-08 1980-08-08 Light operated burglar detector - uses light sensitive resistor to control switching of transistor in circuit responding only to rapid changes Granted FR2488429A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8017517A FR2488429A1 (en) 1980-08-08 1980-08-08 Light operated burglar detector - uses light sensitive resistor to control switching of transistor in circuit responding only to rapid changes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8017517A FR2488429A1 (en) 1980-08-08 1980-08-08 Light operated burglar detector - uses light sensitive resistor to control switching of transistor in circuit responding only to rapid changes

Publications (2)

Publication Number Publication Date
FR2488429A1 FR2488429A1 (en) 1982-02-12
FR2488429B1 true FR2488429B1 (en) 1983-10-28

Family

ID=9245022

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8017517A Granted FR2488429A1 (en) 1980-08-08 1980-08-08 Light operated burglar detector - uses light sensitive resistor to control switching of transistor in circuit responding only to rapid changes

Country Status (1)

Country Link
FR (1) FR2488429A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5489891A (en) * 1993-01-29 1996-02-06 Noval Controls Sdn Bhd Control means for lighting devices
US5349330A (en) * 1993-01-29 1994-09-20 Diong Chong K Touch programmable illumination means

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR983536A (en) * 1949-02-03 1951-06-25 Safety radio installation

Also Published As

Publication number Publication date
FR2488429A1 (en) 1982-02-12

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Legal Events

Date Code Title Description
ST Notification of lapse