GB2216334B - Light source - Google Patents

Light source

Info

Publication number
GB2216334B
GB2216334B GB8903809A GB8903809A GB2216334B GB 2216334 B GB2216334 B GB 2216334B GB 8903809 A GB8903809 A GB 8903809A GB 8903809 A GB8903809 A GB 8903809A GB 2216334 B GB2216334 B GB 2216334B
Authority
GB
United Kingdom
Prior art keywords
light source
source
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 - Fee Related
Application number
GB8903809A
Other versions
GB8903809D0 (en
GB2216334A (en
Inventor
Rolf Sverre Bergman
John Martain Davenport
Richard Lowell Hansler
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.)
General Electric Co
Original Assignee
General Electric 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22563708&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=GB2216334(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by General Electric Co filed Critical General Electric Co
Publication of GB8903809D0 publication Critical patent/GB8903809D0/en
Publication of GB2216334A publication Critical patent/GB2216334A/en
Application granted granted Critical
Publication of GB2216334B publication Critical patent/GB2216334B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/84—Lamps with discharge constricted by high pressure
    • H01J61/86—Lamps with discharge constricted by high pressure with discharge additionally constricted by close spacing of electrodes, e.g. for optical projection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/17—Discharge light sources
    • F21S41/173—Fluorescent light sources

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Discharge Lamp (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
GB8903809A 1988-02-18 1989-02-20 Light source Expired - Fee Related GB2216334B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15743688A 1988-02-18 1988-02-18

Publications (3)

Publication Number Publication Date
GB8903809D0 GB8903809D0 (en) 1989-04-05
GB2216334A GB2216334A (en) 1989-10-04
GB2216334B true GB2216334B (en) 1992-09-23

Family

ID=22563708

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8903809A Expired - Fee Related GB2216334B (en) 1988-02-18 1989-02-20 Light source

Country Status (6)

Country Link
JP (2) JPH027347A (en)
CA (1) CA1301238C (en)
DE (1) DE3904926C2 (en)
FR (1) FR2627627B1 (en)
GB (1) GB2216334B (en)
NL (1) NL193231C (en)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6653801B1 (en) 1979-11-06 2003-11-25 Matsushita Electric Industrial Co., Ltd. Mercury-free metal-halide lamp
JPH0760603B2 (en) * 1989-07-19 1995-06-28 株式会社小糸製作所 Vehicle headlights
US4968916A (en) * 1989-09-08 1990-11-06 General Electric Company Xenon-metal halide lamp particularly suited for automotive applications having an improved electrode structure
DE3933540C2 (en) * 1989-10-07 1999-04-01 Bosch Gmbh Robert Headlights with a variable position of a light source arranged therein for motor vehicles
US5198727A (en) * 1990-02-20 1993-03-30 General Electric Company Acoustic resonance operation of xenon-metal halide lamps on unidirectional current
US5144201A (en) * 1990-02-23 1992-09-01 Welch Allyn, Inc. Low watt metal halide lamp
GB2245417B (en) * 1990-04-20 1994-06-08 Koito Mfg Co Ltd Discharge lamp device
US5220235A (en) * 1990-04-20 1993-06-15 Koito Manufacturing Co., Ltd. Discharge lamp device
US5107165A (en) * 1990-11-01 1992-04-21 General Electric Company Initial light output for metal halide lamp
DE4132530A1 (en) * 1991-09-30 1993-04-01 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh HIGH PRESSURE DISCHARGE LAMP WITH LOW POWER
JP2878520B2 (en) * 1992-03-17 1999-04-05 株式会社小糸製作所 Arc tube for discharge lamp device
JP2761155B2 (en) * 1992-07-08 1998-06-04 株式会社小糸製作所 Discharge lamp device for light source of automotive lamp
DE69402641T2 (en) * 1993-08-03 1997-08-21 Ushio Electric Inc Cadmium discharge lamp
RU2074454C1 (en) * 1995-08-01 1997-02-27 Акционерное общество закрытого типа Научно-техническое агентство "Интеллект" Method for generation of light and discharge lamp which implements said method
EP0837492A3 (en) * 1996-10-16 1998-05-27 Osram Sylvania Inc. High intensity discharge lamp with intermediate pressure xenon fill gas
JPH11238488A (en) 1997-06-06 1999-08-31 Toshiba Lighting & Technology Corp Metal halide discharge lamp, metal halide discharge lamp lighting device and lighting system
KR20010024584A (en) * 1998-09-16 2001-03-26 모리시타 요이찌 Anhydrous silver halide lamp
JP3655126B2 (en) * 1999-06-14 2005-06-02 株式会社小糸製作所 Metal halide lamp
DE10101508A1 (en) * 2001-01-12 2002-08-01 Philips Corp Intellectual Pty High pressure gas discharge lamp for vehicle head lamps, includes proportion of indium iodide or thallium iodide determining color coordinates of light produced
KR100824336B1 (en) * 2001-08-27 2008-04-22 스탠리 일렉트릭 컴퍼니, 리미티드 Metal Halide Lamp
EP1432011B1 (en) 2001-09-27 2008-12-03 Harison Toshiba Lighting Corp. High-pressure discharge lamp, high-pressure discharge lamp operaring device, and headlamp device for automobiles
DE10222954A1 (en) * 2002-05-24 2003-12-04 Philips Intellectual Property High-pressure gas discharge lamp
DE10234758B4 (en) * 2002-07-30 2006-02-16 Sli Lichtsysteme Gmbh Low power metal halide lamp
JP4311319B2 (en) * 2004-09-22 2009-08-12 ウシオ電機株式会社 Short arc type discharge lamp
GB2420220B (en) * 2004-11-10 2009-10-14 Gen Electric Ceramic metal halide lamps
US7772750B2 (en) * 2006-08-24 2010-08-10 General Electric Company Large PAR lamp exhibiting excellent color with improved efficacy and life
JP2008234953A (en) * 2007-03-20 2008-10-02 Iwasaki Electric Co Ltd High-pressure mercury lamp
DE202010004441U1 (en) 2010-03-31 2010-06-24 Osram Gesellschaft mit beschränkter Haftung High pressure discharge lamp for vehicle headlights
US20210331252A1 (en) * 2018-07-31 2021-10-28 Hewlett-Packard Development Company, L.P. Selectively melt micron-sized particles using micro-mirrors

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1052612A (en) * 1964-03-03
GB1109135A (en) * 1964-07-16 1968-04-10 Philips Electronic Associated Improvements in and relating to super high pressure mercury vapour discharge lamps
GB2132011A (en) * 1982-12-01 1984-06-27 Philips Nv Gas discharge lamp

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3398312A (en) * 1965-11-24 1968-08-20 Westinghouse Electric Corp High pressure vapor discharge lamp having a fill including sodium iodide and a free metal
US4023059A (en) * 1972-06-05 1977-05-10 Scott Anderson High pressure light emitting electric discharge device
US4199701A (en) * 1978-08-10 1980-04-22 General Electric Company Fill gas for miniature high pressure metal vapor arc lamp
JPS5533724A (en) * 1978-08-31 1980-03-10 Toshiba Corp Metal vapor discharge lamp
JPS5676157A (en) * 1979-11-28 1981-06-23 Ushio Inc Mercury rare gas discharge lamp
JPS5691368A (en) * 1979-12-24 1981-07-24 Toshiba Corp Metal halide lamp
JPS56126244A (en) * 1980-03-06 1981-10-03 Toshiba Corp Metal halide lamp
JPS56143650A (en) * 1980-04-08 1981-11-09 Toshiba Corp Metal halide lamp
JPS59180949A (en) * 1983-03-30 1984-10-15 Toshiba Corp Metal vapor discharge lamp
JPS6070655A (en) * 1983-09-26 1985-04-22 Matsushita Electronics Corp Small-sized high pressure discharge lamp device
JPS60123863U (en) * 1984-01-25 1985-08-21 株式会社東芝 Small high pressure metal vapor discharge lamp
NL191257C (en) * 1984-02-27 1995-04-18 Philips Nv Headlight system.
US4574219A (en) * 1984-05-25 1986-03-04 General Electric Company Lighting unit
US4612475A (en) * 1984-10-09 1986-09-16 General Electric Company Increased efficacy arc tube for a high intensity discharge lamp
DE3506295A1 (en) * 1985-02-22 1986-08-28 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München COMPACT HIGH PRESSURE DISCHARGE LAMP
JPS6293851A (en) * 1985-10-18 1987-04-30 Toshiba Corp Headlight for vehicle
JPS61180105A (en) * 1986-02-06 1986-08-12 Kawaguchiko Seimitsu Kk Manufacture of spacer of digital length measuring instrument
NL8600813A (en) * 1986-03-28 1987-10-16 Philips Nv SWITCHING DEVICE FOR OPERATING A HIGH-PRESSURE DISCHARGE LAMP.
US4754373A (en) * 1986-10-14 1988-06-28 General Electric Company Automotive headlamp

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1052612A (en) * 1964-03-03
GB1109135A (en) * 1964-07-16 1968-04-10 Philips Electronic Associated Improvements in and relating to super high pressure mercury vapour discharge lamps
GB2132011A (en) * 1982-12-01 1984-06-27 Philips Nv Gas discharge lamp

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Lamps and lighting" 3rd edition Cayless and Marsden, pub. Edward Arnold 1983 pages 210-223 *

Also Published As

Publication number Publication date
NL8900395A (en) 1989-09-18
CA1301238C (en) 1992-05-19
JPH027347A (en) 1990-01-11
FR2627627A1 (en) 1989-08-25
DE3904926C2 (en) 1995-03-09
FR2627627B1 (en) 1994-05-27
DE3904926A1 (en) 1989-08-31
NL193231C (en) 1999-03-03
JPH0550097B2 (en) 1993-07-28
GB8903809D0 (en) 1989-04-05
GB2216334A (en) 1989-10-04
JP3213181B2 (en) 2001-10-02
NL193231B (en) 1998-11-02
JPH07169441A (en) 1995-07-04

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Legal Events

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

Effective date: 20060220