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GB2381381B - LED lamp - Google Patents

LED lamp

Info

Publication number
GB2381381B
GB2381381B GB0227947A GB0227947A GB2381381B GB 2381381 B GB2381381 B GB 2381381B GB 0227947 A GB0227947 A GB 0227947A GB 0227947 A GB0227947 A GB 0227947A GB 2381381 B GB2381381 B GB 2381381B
Authority
GB
United Kingdom
Prior art keywords
led lamp
lamp
led
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 - Lifetime
Application number
GB0227947A
Other versions
GB2381381A (en
GB0227947D0 (en
Inventor
Hassan Paddy Abdel Salam
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.)
Unisplay SA
Original Assignee
Unisplay SA
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
Priority claimed from GBGB9724507.0A external-priority patent/GB9724507D0/en
Priority claimed from GBGB9820311.0A external-priority patent/GB9820311D0/en
Application filed by Unisplay SA filed Critical Unisplay SA
Priority claimed from GB9825403A external-priority patent/GB2331625B/en
Publication of GB0227947D0 publication Critical patent/GB0227947D0/en
Publication of GB2381381A publication Critical patent/GB2381381A/en
Application granted granted Critical
Publication of GB2381381B publication Critical patent/GB2381381B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/80—Constructional details
    • H10H20/83—Electrodes
    • H10H20/831—Electrodes characterised by their shape
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/80—Constructional details
    • H10H20/81—Bodies
    • H10H20/819—Bodies characterised by their shape, e.g. curved or truncated substrates
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/80—Constructional details
    • H10H20/84—Coatings, e.g. passivation layers or antireflective coatings
    • H10H20/841—Reflective coatings, e.g. dielectric Bragg reflectors
    • H10W90/754—
GB0227947A 1997-11-19 1998-11-19 LED lamp Expired - Lifetime GB2381381B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9724507.0A GB9724507D0 (en) 1997-09-12 1997-11-19 Light source arrangements
GBGB9820311.0A GB9820311D0 (en) 1997-11-19 1998-09-17 Led lamp
GB9825403A GB2331625B (en) 1997-11-19 1998-11-19 led Lamp

Publications (3)

Publication Number Publication Date
GB0227947D0 GB0227947D0 (en) 2003-01-08
GB2381381A GB2381381A (en) 2003-04-30
GB2381381B true GB2381381B (en) 2003-06-11

Family

ID=27269100

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0227947A Expired - Lifetime GB2381381B (en) 1997-11-19 1998-11-19 LED lamp
GB0227463A Expired - Lifetime GB2381380B (en) 1997-11-19 1998-11-19 LED lamp

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0227463A Expired - Lifetime GB2381380B (en) 1997-11-19 1998-11-19 LED lamp

Country Status (1)

Country Link
GB (2) GB2381381B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4055503B2 (en) 2001-07-24 2008-03-05 日亜化学工業株式会社 Semiconductor light emitting device
US7683386B2 (en) 2003-08-19 2010-03-23 Nichia Corporation Semiconductor light emitting device with protrusions to improve external efficiency and crystal growth
DE102004025684B4 (en) * 2004-04-29 2024-08-22 OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung Method for forming a contact structure for electrically contacting an optoelectronic semiconductor chip
DE102004021175B4 (en) * 2004-04-30 2023-06-29 OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung Semiconductor chips for optoelectronics and methods for their manufacture
DE102009047889A1 (en) 2009-09-30 2011-03-31 Osram Opto Semiconductors Gmbh Optoelectronic semiconductor chip and method for adapting a contact structure for the electrical contacting of an optoelectronic semiconductor chip

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0405757A2 (en) * 1989-06-27 1991-01-02 Hewlett-Packard Company High efficiency light-emitting diode
WO1997012386A2 (en) * 1995-09-29 1997-04-03 Siemens Aktiengesellschaft Optoelectronic semiconductor component
US5698865A (en) * 1995-05-13 1997-12-16 Temic Telefunken Microelectronic Gmbh Light-emitting diode
EP0905797A2 (en) * 1997-09-29 1999-03-31 Siemens Aktiengesellschaft Semiconductor light source and method of fabrication

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5309001A (en) * 1991-11-25 1994-05-03 Sharp Kabushiki Kaisha Light-emitting diode having a surface electrode of a tree-like form
JPH07254732A (en) * 1994-03-15 1995-10-03 Toshiba Corp Semiconductor light emitting device
JPH0936431A (en) * 1995-07-13 1997-02-07 Toshiba Corp Semiconductor light emitting device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0405757A2 (en) * 1989-06-27 1991-01-02 Hewlett-Packard Company High efficiency light-emitting diode
US5698865A (en) * 1995-05-13 1997-12-16 Temic Telefunken Microelectronic Gmbh Light-emitting diode
WO1997012386A2 (en) * 1995-09-29 1997-04-03 Siemens Aktiengesellschaft Optoelectronic semiconductor component
EP0905797A2 (en) * 1997-09-29 1999-03-31 Siemens Aktiengesellschaft Semiconductor light source and method of fabrication

Also Published As

Publication number Publication date
GB2381380A (en) 2003-04-30
GB2381381A (en) 2003-04-30
GB0227463D0 (en) 2002-12-31
GB0227947D0 (en) 2003-01-08
GB2381380B (en) 2003-06-18

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20120119 AND 20120125

PE20 Patent expired after termination of 20 years

Expiry date: 20181118