EP0962955A3 - Lamp and manufacturing method thereof - Google Patents

Lamp and manufacturing method thereof Download PDF

Info

Publication number
EP0962955A3
EP0962955A3 EP99109885A EP99109885A EP0962955A3 EP 0962955 A3 EP0962955 A3 EP 0962955A3 EP 99109885 A EP99109885 A EP 99109885A EP 99109885 A EP99109885 A EP 99109885A EP 0962955 A3 EP0962955 A3 EP 0962955A3
Authority
EP
European Patent Office
Prior art keywords
pressure
lamp
glass
side tube
compressed
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Withdrawn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
EP99109885A
Other languages
German (de)
French (fr)
Other versions
EP0962955A2 (en
Inventor
Yuriko Kaneko
Makoto Horiuchi
Mamoru Takeda
Masato Yosida
Yoshitaka Kurimoto
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of EP0962955A2 publication Critical patent/EP0962955A2/en
Publication of EP0962955A3 publication Critical patent/EP0962955A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/32—Sealing leading-in conductors
    • H01J9/323—Sealing leading-in conductors into a discharge lamp or a gas-filled discharge device
    • H01J9/326—Sealing leading-in conductors into a discharge lamp or a gas-filled discharge device making pinched-stem or analogous seals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
    • H01J61/366—Seals for leading-in conductors
    • H01J61/368—Pinched seals or analogous seals

Abstract

A lamp made of a tube having a light emission portion glass (1) and a side tube portion glass (2) that extends from the light emission portion glass. The lamp has a sealed electrode assembly having an electrical current supply line (3) with one end portion connected to a metal foil (4). A first portion of the side tube portion where an electrical current supply line is located is heated and this portion is compressed by a first pressure. A second portion of the side tube portion where a metal foil is located is heated and this portion is compressed by a second pressure. The second pressure is made larger than the first pressure.
EP99109885A 1998-05-25 1999-05-20 Lamp and manufacturing method thereof Withdrawn EP0962955A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP14269098 1998-05-25
JP14269098 1998-05-25
JP10778099 1999-04-15
JP11107780A JP2000048718A (en) 1998-05-25 1999-04-15 Lamp and manufacture of lamp

Publications (2)

Publication Number Publication Date
EP0962955A2 EP0962955A2 (en) 1999-12-08
EP0962955A3 true EP0962955A3 (en) 2002-02-13

Family

ID=26447769

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99109885A Withdrawn EP0962955A3 (en) 1998-05-25 1999-05-20 Lamp and manufacturing method thereof

Country Status (2)

Country Link
EP (1) EP0962955A3 (en)
JP (1) JP2000048718A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010024089A1 (en) * 2000-03-23 2001-09-27 Duffy Mark E. Outer seals for shrink-sealed metal halide arc tubes
WO2003036682A1 (en) * 2001-10-26 2003-05-01 Toto Ltd. High-pressure discharge lamp, its crystallization/blacking suppression method, and illumination apparatus

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3685880A (en) * 1970-07-06 1972-08-22 Gen Electric Manufacture of lamps of the compact arc discharge type
JPH05159743A (en) * 1991-12-03 1993-06-25 Koito Mfg Co Ltd Arc tube and manufacture thereof
JPH0817346A (en) * 1994-06-29 1996-01-19 Stanley Electric Co Ltd Sealing method for bulb
US5598063A (en) * 1992-12-16 1997-01-28 General Electric Company Means for supporting and sealing the lead structure of a lamp
DE19710204A1 (en) * 1996-03-12 1997-10-30 Koito Mfg Co Ltd Arc-discharge tube with glass tube made of quartz used for lighting
EP0866488A1 (en) * 1997-03-17 1998-09-23 Matsushita Electric Industrial Co., Ltd. High-pressure discharge lamp and manufacturing method thereof
JPH1167093A (en) * 1997-08-26 1999-03-09 Iwasaki Electric Co Ltd Manufacture of short-arc discharge lamp

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3685880A (en) * 1970-07-06 1972-08-22 Gen Electric Manufacture of lamps of the compact arc discharge type
JPH05159743A (en) * 1991-12-03 1993-06-25 Koito Mfg Co Ltd Arc tube and manufacture thereof
US5598063A (en) * 1992-12-16 1997-01-28 General Electric Company Means for supporting and sealing the lead structure of a lamp
JPH0817346A (en) * 1994-06-29 1996-01-19 Stanley Electric Co Ltd Sealing method for bulb
DE19710204A1 (en) * 1996-03-12 1997-10-30 Koito Mfg Co Ltd Arc-discharge tube with glass tube made of quartz used for lighting
EP0866488A1 (en) * 1997-03-17 1998-09-23 Matsushita Electric Industrial Co., Ltd. High-pressure discharge lamp and manufacturing method thereof
JPH1167093A (en) * 1997-08-26 1999-03-09 Iwasaki Electric Co Ltd Manufacture of short-arc discharge lamp

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 017, no. 549 *
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 05 *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 08 *

Also Published As

Publication number Publication date
JP2000048718A (en) 2000-02-18
EP0962955A2 (en) 1999-12-08

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