GB1437033A - Variable intensity warning light - Google Patents

Variable intensity warning light

Info

Publication number
GB1437033A
GB1437033A GB2277873A GB2277873A GB1437033A GB 1437033 A GB1437033 A GB 1437033A GB 2277873 A GB2277873 A GB 2277873A GB 2277873 A GB2277873 A GB 2277873A GB 1437033 A GB1437033 A GB 1437033A
Authority
GB
United Kingdom
Prior art keywords
lamp
intensity
photovoltaic
warning light
ambient light
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
GB2277873A
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 GB1437033A publication Critical patent/GB1437033A/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)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Road Signs Or Road Markings (AREA)

Abstract

1437033 Photo-electric control of lamp intensity EXXON RESEARCH & ENG CO 12 Oct 1972 [17 May 1972] 47134/72 Heading G1A A lamp 8 has its intensity controlled in proportion to the intensity of ambient light by supplying it with power generated by photovoltaic means 10 responsive to the ambient light. The output of the photovoltaic (solar cell) detector(s) 10 may, if desired, be converted to a voltage proportional to intensity before applying it to a voltage cubing circuit 9. If a flashing lamp operation is required, pulse generator 3 is used to interrupt the supply to the lamp 8 from the photovoltaic generator. Excess power generated by the' solar cells may be diverted to charge a battery to be used to power the lamp at night.
GB2277873A 1972-05-17 1973-05-14 Variable intensity warning light Expired GB1437033A (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
GB1437033A true GB1437033A (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 Before (1)

Application Number Title Priority Date Filing Date
GB171776A Expired GB1437034A (en) 1972-05-17 1973-05-14 Automatic flashing lamp device

Country Status (2)

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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986000858A1 (en) * 1984-07-23 1986-02-13 Jeranch International Limited Improvements in 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
WO2012173771A1 (en) * 2011-06-14 2012-12-20 Simplexgrinnell Lp Dual mode led strobe
GB2519354A (en) * 2013-10-18 2015-04-22 Ticknall Solar Solutions Ltd A luminaire configured to illuminate a road sign
US9466186B2 (en) 2011-06-14 2016-10-11 Tyco Fire & Security Gmbh Conditionally variable strobe notification appliance

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986000858A1 (en) * 1984-07-23 1986-02-13 Jeranch International Limited Improvements in 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
WO2012173771A1 (en) * 2011-06-14 2012-12-20 Simplexgrinnell Lp Dual mode led strobe
US8773276B2 (en) 2011-06-14 2014-07-08 Tyco Fire & Security Gmbh Dual mode LED strobe
US9355535B2 (en) 2011-06-14 2016-05-31 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
GB1437034A (en) 1976-05-26
CA1035440A (en) 1978-07-25

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Legal Events

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