GB1437034A - Automatic flashing lamp device - Google Patents

Automatic flashing lamp device

Info

Publication number
GB1437034A
GB1437034A GB171776A GB171776A GB1437034A GB 1437034 A GB1437034 A GB 1437034A GB 171776 A GB171776 A GB 171776A GB 171776 A GB171776 A GB 171776A GB 1437034 A GB1437034 A GB 1437034A
Authority
GB
United Kingdom
Prior art keywords
lamp
level
flashing
ambient
intensity
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
GB171776A
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
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 Exxon Research and Engineering Co filed Critical Exxon Research and Engineering Co
Publication of GB1437034A publication Critical patent/GB1437034A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
    • G08B5/38—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources using flashing light
    • 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

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Road Signs Or Road Markings (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

1437034 Flashing lamp intensity control EXXON RESEARCH & ENG CO 14 May 1973 [17 May 1972] 01717/76 Divided out of 1437033 Heading G1A A flashing lamp control arrangement comprises lamp means 1, 2 emitting light at two intensity levels (i.e a single dual-filament lamp or two separate lamps), a pulse generator 3 arranged to intermittently supply power to the lamp means to cause flashing thereof, a photo-conductive detector 5 monitoring the ambient light level and causing a transistorized switching circuit 4 to switch the lamp means to the high intensity level when the ambient level rises above a predetermined threshold (i.e. during the day) and to a low intensity level when the ambient level is below the threshold (i.e. during the night). The pulse generator may be an oscillator or an astable multi-vibrator as detailed in Fig. 2 (not shown). Detector 5 may be a Cd S or Cd Se device.
GB171776A 1972-05-17 1973-05-14 Automatic flashing lamp device Expired GB1437034A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25406172A 1972-05-17 1972-05-17

Publications (1)

Publication Number Publication Date
GB1437034A true GB1437034A (en) 1976-05-26

Family

ID=22962790

Family Applications (2)

Application Number Title Priority Date Filing Date
GB171776A Expired GB1437034A (en) 1972-05-17 1973-05-14 Automatic flashing lamp device
GB2277873A Expired GB1437033A (en) 1972-05-17 1973-05-14 Variable intensity warning light

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB2277873A Expired GB1437033A (en) 1972-05-17 1973-05-14 Variable intensity warning light

Country Status (2)

Country Link
CA (1) CA1035440A (en)
GB (2) GB1437034A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8418717D0 (en) * 1984-07-23 1984-08-30 Jeranch International Ltd Warning apparatus
EP0239653A1 (en) * 1986-03-29 1987-10-07 TELETTRA Telefonia Elettronica e Radio S.p.A. System for feeding and controlling low intensity obstruction lights
US8773276B2 (en) 2011-06-14 2014-07-08 Tyco Fire & Security Gmbh Dual mode LED strobe
US9466186B2 (en) 2011-06-14 2016-10-11 Tyco Fire & Security Gmbh Conditionally variable strobe notification appliance
GB2519354A (en) * 2013-10-18 2015-04-22 Ticknall Solar Solutions Ltd A luminaire configured to illuminate a road sign

Also Published As

Publication number Publication date
CA1035440A (en) 1978-07-25
GB1437033A (en) 1976-05-26

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Legal Events

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