GB9207870D0 - Energy efficient light bulb - Google Patents

Energy efficient light bulb

Info

Publication number
GB9207870D0
GB9207870D0 GB929207870A GB9207870A GB9207870D0 GB 9207870 D0 GB9207870 D0 GB 9207870D0 GB 929207870 A GB929207870 A GB 929207870A GB 9207870 A GB9207870 A GB 9207870A GB 9207870 D0 GB9207870 D0 GB 9207870D0
Authority
GB
United Kingdom
Prior art keywords
light bulb
energy efficient
efficient light
energy
bulb
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.)
Withdrawn
Application number
GB929207870A
Other versions
GB2265978A (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.)
CHRISTOPHER J COOP
MIDDLEMAS JOHN M
Original Assignee
CHRISTOPHER J COOP
MIDDLEMAS JOHN M
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 CHRISTOPHER J COOP, MIDDLEMAS JOHN M filed Critical CHRISTOPHER J COOP
Priority to GB9207870A priority Critical patent/GB2265978A/en
Publication of GB9207870D0 publication Critical patent/GB9207870D0/en
Publication of GB2265978A publication Critical patent/GB2265978A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Power Engineering (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
GB9207870A 1992-04-10 1992-04-10 Energy efficient lightbulb Withdrawn GB2265978A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9207870A GB2265978A (en) 1992-04-10 1992-04-10 Energy efficient lightbulb

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9207870A GB2265978A (en) 1992-04-10 1992-04-10 Energy efficient lightbulb

Publications (2)

Publication Number Publication Date
GB9207870D0 true GB9207870D0 (en) 1992-05-27
GB2265978A GB2265978A (en) 1993-10-13

Family

ID=10713784

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9207870A Withdrawn GB2265978A (en) 1992-04-10 1992-04-10 Energy efficient lightbulb

Country Status (1)

Country Link
GB (1) GB2265978A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4438489C2 (en) * 1994-10-28 2000-10-19 Wolfgang Dammert Signal light, especially construction site light or beacon light
GB9605314D0 (en) * 1996-03-13 1996-05-15 Toher C H Non-filament lights
DE19835392A1 (en) * 1998-08-06 2000-02-10 Mannesmann Vdo Ag Control circuit for light emitting diodes
DE19910550A1 (en) * 1999-03-10 2000-09-21 Oezsoy Hakan Light insert for motor vehicle lights enables LED lights to be used in conventional incandescent light socket
WO2000060277A1 (en) * 1999-04-03 2000-10-12 Buenting Gerd Signalling light with light-emitting diode

Also Published As

Publication number Publication date
GB2265978A (en) 1993-10-13

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)