FR2262896A1 - Automatic light switch actuated by ambient light conditions - employing photocell to monitor ambient light - Google Patents

Automatic light switch actuated by ambient light conditions - employing photocell to monitor ambient light

Info

Publication number
FR2262896A1
FR2262896A1 FR7406764A FR7406764A FR2262896A1 FR 2262896 A1 FR2262896 A1 FR 2262896A1 FR 7406764 A FR7406764 A FR 7406764A FR 7406764 A FR7406764 A FR 7406764A FR 2262896 A1 FR2262896 A1 FR 2262896A1
Authority
FR
France
Prior art keywords
ambient light
photocell
employing
switch actuated
stage
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
FR7406764A
Other languages
French (fr)
Other versions
FR2262896B3 (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.)
SCIT
Original Assignee
SCIT
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 SCIT filed Critical SCIT
Priority to FR7406764A priority Critical patent/FR2262896A1/en
Publication of FR2262896A1 publication Critical patent/FR2262896A1/en
Application granted granted Critical
Publication of FR2262896B3 publication Critical patent/FR2262896B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The AC lighting circuit (L1, L2) is supplied from a DC supply stage (1) via a detector stage (2) responsive to the ambient lighting conditions. The detector (2) comprises a voltage divider, with a photocell, and a release stage, comprising a relaxation pulse generator (4), responds to a given voltage threshold across the divider, to operate a relay (5) for the lighting circuit (L1, L2). Preferably a time circuit (3) employing resistors and capacitors is inserted between the voltage divider and the release stage. A capacitor can be used to filter the regulated supply and also used as the charge storage element for the relaxation pulse generator (4).
FR7406764A 1974-02-28 1974-02-28 Automatic light switch actuated by ambient light conditions - employing photocell to monitor ambient light Granted FR2262896A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7406764A FR2262896A1 (en) 1974-02-28 1974-02-28 Automatic light switch actuated by ambient light conditions - employing photocell to monitor ambient light

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7406764A FR2262896A1 (en) 1974-02-28 1974-02-28 Automatic light switch actuated by ambient light conditions - employing photocell to monitor ambient light

Publications (2)

Publication Number Publication Date
FR2262896A1 true FR2262896A1 (en) 1975-09-26
FR2262896B3 FR2262896B3 (en) 1976-12-10

Family

ID=9135563

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7406764A Granted FR2262896A1 (en) 1974-02-28 1974-02-28 Automatic light switch actuated by ambient light conditions - employing photocell to monitor ambient light

Country Status (1)

Country Link
FR (1) FR2262896A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3008340A1 (en) * 1980-03-05 1981-09-17 Micheel, Ewald, 4450 Lingen Daylight actuated light switch control circuit - has triac and delay device between two comparators, with one comparator connected to switch at other comparator
DE3018946A1 (en) * 1980-05-17 1981-11-26 Dieter 4020 Mettmann Christiansen SINGLE CELL SWITCH FOR AUTOMATICALLY CONTROLLED LIGHTING SYSTEMS
DE3029191A1 (en) * 1980-08-01 1982-02-18 Dieter 4020 Mettmann Christiansen Centrally controlled lighting installation for public buildings - has switches for individual lights allowing their operation independently of central switch
EP0069182A1 (en) * 1981-07-02 1983-01-12 Gaston Gavarret Security device for electronic apparatuses and especially for television receivers
EP0040339B1 (en) * 1980-05-17 1985-08-07 Dieter Christiansen A centrally controlled lighting installation having a plurality of individually-switchable individual light points, central switch elements and individual light switches therefor
WO2009060250A1 (en) * 2007-11-07 2009-05-14 Mariano Penagos Consuegra System and device for controlling the turning on, turning off and consumption of power in lights
CN111124011A (en) * 2019-12-20 2020-05-08 代孟奇 Light-operated digital adjustable full-automatic curtain opening and closing control device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3008340A1 (en) * 1980-03-05 1981-09-17 Micheel, Ewald, 4450 Lingen Daylight actuated light switch control circuit - has triac and delay device between two comparators, with one comparator connected to switch at other comparator
DE3018946A1 (en) * 1980-05-17 1981-11-26 Dieter 4020 Mettmann Christiansen SINGLE CELL SWITCH FOR AUTOMATICALLY CONTROLLED LIGHTING SYSTEMS
EP0040339B1 (en) * 1980-05-17 1985-08-07 Dieter Christiansen A centrally controlled lighting installation having a plurality of individually-switchable individual light points, central switch elements and individual light switches therefor
DE3029191A1 (en) * 1980-08-01 1982-02-18 Dieter 4020 Mettmann Christiansen Centrally controlled lighting installation for public buildings - has switches for individual lights allowing their operation independently of central switch
EP0069182A1 (en) * 1981-07-02 1983-01-12 Gaston Gavarret Security device for electronic apparatuses and especially for television receivers
WO2009060250A1 (en) * 2007-11-07 2009-05-14 Mariano Penagos Consuegra System and device for controlling the turning on, turning off and consumption of power in lights
CN111124011A (en) * 2019-12-20 2020-05-08 代孟奇 Light-operated digital adjustable full-automatic curtain opening and closing control device

Also Published As

Publication number Publication date
FR2262896B3 (en) 1976-12-10

Similar Documents

Publication Publication Date Title
FR2262896A1 (en) Automatic light switch actuated by ambient light conditions - employing photocell to monitor ambient light
GB1135287A (en) Improvements relating to minimum voltage warning apparatus
JPS57152025A (en) Safety device for computer
GB1490866A (en) Light responsive detectors
DE3863537D1 (en) DEVICE WITH A PHOTOCELL FOR RETRACTING THE TENSION SPRING.
JPS51117623A (en) Dimmer electronic light quantity insufficiency warning unit
JPS56123559A (en) Safety device for copy machine using flash lamp
FR2345802A1 (en) AC contactor with release delay - has excitation coil bridged by rectifier and capacitor in series and thyristor parallel to rectifier
JPS5348727A (en) Discharge flash device
JPS55162881A (en) Rectification circuit for two power sources
GB1558075A (en) Stabilized dc voltage supply device
JPS5371252A (en) Dc constant voltage power supply
GB1405388A (en) Irradiation device provided with a gas and or vapour discharge tube
FR2447555A1 (en) Electronic circuit for liq. level measurement - utilises capacitor charged and discharged with constant current for comparison with reference
GB1213386A (en) Battery condition indicator
GB871929A (en) Starting and operating device for electric discharge lamps
GB1331845A (en) Flasher light signalling device
GB1329670A (en) Power supply circuit
DE3784862D1 (en) ELECTRICITY DEVICE.
JPS56128016A (en) Stop device of start of oscillator
JPS57160365A (en) Monitoring system for thyristor
FR2426382A1 (en) Discharge lamp stability circuit - has series inductance shunted by switch and is fed from auto-transformer
JPS5658316A (en) Automatic tuner of variable capacitor type
JPS5322347A (en) Analogue memory circuit
JPS54146479A (en) Device for lighting on discharge lamp

Legal Events

Date Code Title Description
ST Notification of lapse