JPS5457376A - High-pressure metal vapor discharge lamp - Google Patents

High-pressure metal vapor discharge lamp

Info

Publication number
JPS5457376A
JPS5457376A JP12346777A JP12346777A JPS5457376A JP S5457376 A JPS5457376 A JP S5457376A JP 12346777 A JP12346777 A JP 12346777A JP 12346777 A JP12346777 A JP 12346777A JP S5457376 A JPS5457376 A JP S5457376A
Authority
JP
Japan
Prior art keywords
discharge lamp
tube
pressure
lamp
vapor discharge
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.)
Pending
Application number
JP12346777A
Other languages
Japanese (ja)
Inventor
Kenichi Kawasumi
Akiisa Inada
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12346777A priority Critical patent/JPS5457376A/en
Publication of JPS5457376A publication Critical patent/JPS5457376A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To manufacture a high-pressure metal vapor discharge lamp by use of a heat-resisting metal tube that is closed at one end, thereby simplifying manufacture of the discharge lamp, attaining complete air-tightness, and facilitating control of the vapor pressure of material sealed in the lamp.
CONSTITUTION: Heat-resisting tube 1 is closed at one end and opened at the other end, and cuts 14 are formed on opposite sides of the metal tube 12 at a portion thereof near the opening end. Then, electrode 2 is attached to end portion 13 with application of pressure, and a hole 15 communicated to the inside of the metal tube 12 is formed in the cuts 14. Simultaneously with attaching end cap 3 to arc tube 1 in air-tight manner, required substances are sealed into the arc tube 1, whereby manufacturing of the lamp is completed
COPYRIGHT: (C)1979,JPO&Japio
JP12346777A 1977-10-17 1977-10-17 High-pressure metal vapor discharge lamp Pending JPS5457376A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12346777A JPS5457376A (en) 1977-10-17 1977-10-17 High-pressure metal vapor discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12346777A JPS5457376A (en) 1977-10-17 1977-10-17 High-pressure metal vapor discharge lamp

Publications (1)

Publication Number Publication Date
JPS5457376A true JPS5457376A (en) 1979-05-09

Family

ID=14861343

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12346777A Pending JPS5457376A (en) 1977-10-17 1977-10-17 High-pressure metal vapor discharge lamp

Country Status (1)

Country Link
JP (1) JPS5457376A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58182359U (en) * 1982-05-31 1983-12-05 岩崎電気株式会社 high pressure sodium lamp
US4827190A (en) * 1985-11-28 1989-05-02 Iwasaki Electric Co., Ltd. Metal vapor discharge lamp and method of producing the same
US4975620A (en) * 1985-11-28 1990-12-04 Iwasaki Electric Co., Ltd. Metal vapor discharge lamp and method of producing the same
WO1991009417A1 (en) * 1989-12-14 1991-06-27 Gte Products Corporation Electrode feedthrough tube for arc discharge lamp

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4814950U (en) * 1971-06-30 1973-02-20
JPS49126190A (en) * 1973-03-08 1974-12-03
JPS5019870A (en) * 1973-06-21 1975-03-03

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4814950U (en) * 1971-06-30 1973-02-20
JPS49126190A (en) * 1973-03-08 1974-12-03
JPS5019870A (en) * 1973-06-21 1975-03-03

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58182359U (en) * 1982-05-31 1983-12-05 岩崎電気株式会社 high pressure sodium lamp
US4827190A (en) * 1985-11-28 1989-05-02 Iwasaki Electric Co., Ltd. Metal vapor discharge lamp and method of producing the same
US4975620A (en) * 1985-11-28 1990-12-04 Iwasaki Electric Co., Ltd. Metal vapor discharge lamp and method of producing the same
WO1991009417A1 (en) * 1989-12-14 1991-06-27 Gte Products Corporation Electrode feedthrough tube for arc discharge lamp

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