JPS563962A - High-pressure metal vapor discharge lamp - Google Patents

High-pressure metal vapor discharge lamp

Info

Publication number
JPS563962A
JPS563962A JP7886179A JP7886179A JPS563962A JP S563962 A JPS563962 A JP S563962A JP 7886179 A JP7886179 A JP 7886179A JP 7886179 A JP7886179 A JP 7886179A JP S563962 A JPS563962 A JP S563962A
Authority
JP
Japan
Prior art keywords
electrodes
sealed portion
luminous tube
emitter
raise
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
JP7886179A
Other languages
Japanese (ja)
Inventor
Katsuo Murakami
Hiroshi Ito
Hiroshi Takada
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7886179A priority Critical patent/JPS563962A/en
Publication of JPS563962A publication Critical patent/JPS563962A/en
Pending 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
    • H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
    • H01J61/827—Metal halide arc lamps
    • 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
    • H01J61/35—Vessels; Containers provided with coatings on the walls thereof; Selection of materials for the coatings

Abstract

PURPOSE:To raise the coldest point and obtain sufficiently luminous spectrum intensity by providing electrodes in parallel at one end of a luminous tube and forming a partition wall interrupting between the electrodes by projecting its one end from the other end. CONSTITUTION:In the outer tube 1 made of a light transmissible glass, a luminous tube 6 made of the light transmissible quartz glass filled with a rare gas and mercury is provided, and the sealed portion 7 is provided in sealed manner with the parallel electrodes 10 with the emitter 9 projecting into the luminous tube 6. Also, on the other side opposite to the sealed portion 7, the partition wall 12 is projectionally provided in such a way as to interrupt between the electrodes 10. Thus, because the heat of the emitter 9 conducts through the lead line 8 and also a high-temperature arc curved to the direction of the sealed portion 7 of arc between the electrodes 10 comes near the sealed portion 7 to raise the temperature of the sealed portion 7, the vapor pressure of confined metal is made higher and sufficient luminescence can therefore be obtained.
JP7886179A 1979-06-22 1979-06-22 High-pressure metal vapor discharge lamp Pending JPS563962A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7886179A JPS563962A (en) 1979-06-22 1979-06-22 High-pressure metal vapor discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7886179A JPS563962A (en) 1979-06-22 1979-06-22 High-pressure metal vapor discharge lamp

Publications (1)

Publication Number Publication Date
JPS563962A true JPS563962A (en) 1981-01-16

Family

ID=13673602

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7886179A Pending JPS563962A (en) 1979-06-22 1979-06-22 High-pressure metal vapor discharge lamp

Country Status (1)

Country Link
JP (1) JPS563962A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4644224A (en) * 1982-06-11 1987-02-17 Hitachi, Ltd. Compact fluorescent lamp having bulb base
FR2616588A1 (en) * 1987-06-11 1988-12-16 Toshiba Kk HIGH-STRENGTH DISCHARGE LAMP OF THE SIDE-SIDED TYPE, WHICH ALLOWS COMPENSATION FOR THE LIGHT-EFFICIENT VARIATIONS CAUSED BY VARIATIONS IN ITS LIGHTING ANGLE, AND METHOD OF MANUFACTURING THE LAMP
US5864138A (en) * 1995-09-14 1999-01-26 Hitachi, Ltd. Electron Microscope

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4644224A (en) * 1982-06-11 1987-02-17 Hitachi, Ltd. Compact fluorescent lamp having bulb base
FR2616588A1 (en) * 1987-06-11 1988-12-16 Toshiba Kk HIGH-STRENGTH DISCHARGE LAMP OF THE SIDE-SIDED TYPE, WHICH ALLOWS COMPENSATION FOR THE LIGHT-EFFICIENT VARIATIONS CAUSED BY VARIATIONS IN ITS LIGHTING ANGLE, AND METHOD OF MANUFACTURING THE LAMP
US5864138A (en) * 1995-09-14 1999-01-26 Hitachi, Ltd. Electron Microscope
US6084239A (en) * 1995-09-14 2000-07-04 Hitachi, Ltd. Electron microscope

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