EP0451997A3 - Metal vapor discharge lamp - Google Patents

Metal vapor discharge lamp Download PDF

Info

Publication number
EP0451997A3
EP0451997A3 EP19910302736 EP91302736A EP0451997A3 EP 0451997 A3 EP0451997 A3 EP 0451997A3 EP 19910302736 EP19910302736 EP 19910302736 EP 91302736 A EP91302736 A EP 91302736A EP 0451997 A3 EP0451997 A3 EP 0451997A3
Authority
EP
European Patent Office
Prior art keywords
discharge lamp
metal vapor
vapor discharge
metal
lamp
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Withdrawn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
EP19910302736
Other versions
EP0451997A2 (en
Inventor
Akira Itoh
Kazuyoshi Okamura
Kazuiki Uchida
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.)
Toshiba Lighting and Technology Corp
Original Assignee
Toshiba Lighting and Technology Corp
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 Toshiba Lighting and Technology Corp filed Critical Toshiba Lighting and Technology Corp
Publication of EP0451997A2 publication Critical patent/EP0451997A2/en
Publication of EP0451997A3 publication Critical patent/EP0451997A3/en
Withdrawn legal-status Critical Current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
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/74—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of difficult vaporisable metal vapour, e.g. sodium
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
    • H01J61/825—High-pressure sodium lamps
EP19910302736 1990-03-31 1991-03-28 Metal vapor discharge lamp Withdrawn EP0451997A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8648790A JPH03285254A (en) 1990-03-31 1990-03-31 Ceramic discharge lamp
JP86487/90 1990-03-31

Publications (2)

Publication Number Publication Date
EP0451997A2 EP0451997A2 (en) 1991-10-16
EP0451997A3 true EP0451997A3 (en) 1992-08-12

Family

ID=13888343

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910302736 Withdrawn EP0451997A3 (en) 1990-03-31 1991-03-28 Metal vapor discharge lamp

Country Status (2)

Country Link
EP (1) EP0451997A3 (en)
JP (1) JPH03285254A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0706455B1 (en) 1993-06-24 2003-08-27 American National Can Company Improved structures of polymers made from single site catalysts
US20060202627A1 (en) * 2005-03-09 2006-09-14 General Electric Company Ceramic arctubes for discharge lamps
US8253335B2 (en) 2010-06-03 2012-08-28 General Electric Company Arc shaped discharge chamber for high intensity discharge automotive lamp
JP2012009372A (en) * 2010-06-28 2012-01-12 Stanley Electric Co Ltd Ultraviolet discharge lamp and driving method of the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0415398A2 (en) * 1989-08-31 1991-03-06 Toshiba Lighting & Technology Corporation Ceramic electric-discharge lamp incorporating arc tube having at least two curved regions

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5832350A (en) * 1981-08-19 1983-02-25 Hitachi Ltd High-pressure sodium lamp
JPS58145054A (en) * 1982-02-22 1983-08-29 Mitsubishi Electric Corp High pressure electric discharge lamp

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0415398A2 (en) * 1989-08-31 1991-03-06 Toshiba Lighting & Technology Corporation Ceramic electric-discharge lamp incorporating arc tube having at least two curved regions

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 7, no. 111 (E-175)[1256] 14 May 1983 & JP-A-58 032 350 (HITACHI SEISAKUSHO K.K.) 25 February 1983 *
PATENT ABSTRACTS OF JAPAN, vol. 7, no. 258 (E-211)[1403] 17 November 1983 & JP-A-58 145 054 (MITSUBISHI DENKI K.K.) 29 August 1983 *

Also Published As

Publication number Publication date
EP0451997A2 (en) 1991-10-16
JPH03285254A (en) 1991-12-16

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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17P Request for examination filed

Effective date: 19910419

AK Designated contracting states

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PUAL Search report despatched

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Effective date: 19940613

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18D Application deemed to be withdrawn

Effective date: 19941224