CA2042258A1 - Electrodeless hid lamp with microwave power coupler - Google Patents

Electrodeless hid lamp with microwave power coupler

Info

Publication number
CA2042258A1
CA2042258A1 CA002042258A CA2042258A CA2042258A1 CA 2042258 A1 CA2042258 A1 CA 2042258A1 CA 002042258 A CA002042258 A CA 002042258A CA 2042258 A CA2042258 A CA 2042258A CA 2042258 A1 CA2042258 A1 CA 2042258A1
Authority
CA
Canada
Prior art keywords
capsule
lamp
millimeters
excitable
electrodeless
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.)
Granted
Application number
CA002042258A
Other languages
French (fr)
Other versions
CA2042258C (en
Inventor
Walter P. Lapatovich
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.)
Osram Sylvania Inc
Original Assignee
GTE Laboratories Inc
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 GTE Laboratories Inc filed Critical GTE Laboratories Inc
Publication of CA2042258A1 publication Critical patent/CA2042258A1/en
Application granted granted Critical
Publication of CA2042258C publication Critical patent/CA2042258C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/24—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency

Abstract

An electrodeless lamp may be formed with a capsule having a radiant energy transmissive material defining an approximately cylindrical enclosed volume having an external length less than 20.0 millimeters, and an outer diameter less than 8.0 millimeters. The enclosed volume is filled with a lamp fill excitable by a high frequency electromagnetic field to produce radiant energy. The small size capsule produces a particularly efficient, orientation tolerant arc discharge. The arc is then highly stable as to position, yielding a good optical source to design for. The temperature gradient is small, thereby yielding little thermal stress on the capsule. An electrodeless HID headlamp system may be formed with the efficient capsule from a radio frequency source operating from a the power supply of a typical automobile. The headlamp system includes a high frequency power source, a transmission line, a coupler, an excitable lamp fill captured in a lamp capsule, a reflector and a lens.
CA002042258A 1990-05-15 1991-05-09 Electrodeless hid lamp with microwave power coupler Expired - Fee Related CA2042258C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/524265 1990-05-15
US07/524,265 US5070277A (en) 1990-05-15 1990-05-15 Electrodless hid lamp with microwave power coupler

Publications (2)

Publication Number Publication Date
CA2042258A1 true CA2042258A1 (en) 1991-11-16
CA2042258C CA2042258C (en) 2002-02-05

Family

ID=24088480

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002042258A Expired - Fee Related CA2042258C (en) 1990-05-15 1991-05-09 Electrodeless hid lamp with microwave power coupler

Country Status (2)

Country Link
US (1) US5070277A (en)
CA (1) CA2042258C (en)

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US8487543B2 (en) * 2006-10-20 2013-07-16 Luxim Corporation Electrodeless lamps and methods
US8143801B2 (en) 2006-10-20 2012-03-27 Luxim Corporation Electrodeless lamps and methods
US20080211971A1 (en) * 2007-01-08 2008-09-04 Luxim Corporation Color balancing systems and methods
US8159136B2 (en) * 2007-02-07 2012-04-17 Luxim Corporation Frequency tunable resonant cavity for use with an electrodeless plasma lamp
US8084955B2 (en) * 2007-07-23 2011-12-27 Luxim Corporation Systems and methods for improved startup and control of electrodeless plasma lamp using current feedback
WO2009014709A1 (en) 2007-07-23 2009-01-29 Luxim Corporation Reducing arcing in electrodeless lamps
US20090167201A1 (en) * 2007-11-07 2009-07-02 Luxim Corporation. Light source and methods for microscopy and endoscopy
US20100156310A1 (en) * 2008-09-18 2010-06-24 Luxim Corporation Low frequency electrodeless plasma lamp
US8319439B2 (en) * 2008-09-18 2012-11-27 Luxim Corporation Electrodeless plasma lamp and drive circuit
US8304994B2 (en) * 2008-10-09 2012-11-06 Luxim Corporation Light collection system for an electrodeless RF plasma lamp
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Also Published As

Publication number Publication date
US5070277A (en) 1991-12-03
CA2042258C (en) 2002-02-05

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