JPS5626351A - High-pressure mercury-arc lamp - Google Patents

High-pressure mercury-arc lamp

Info

Publication number
JPS5626351A
JPS5626351A JP10184179A JP10184179A JPS5626351A JP S5626351 A JPS5626351 A JP S5626351A JP 10184179 A JP10184179 A JP 10184179A JP 10184179 A JP10184179 A JP 10184179A JP S5626351 A JPS5626351 A JP S5626351A
Authority
JP
Japan
Prior art keywords
arc lamp
pressure mercury
luminous tube
situated
space
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
JP10184179A
Other languages
Japanese (ja)
Inventor
Yasuki Mori
Akihiro Kamiya
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 Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP10184179A priority Critical patent/JPS5626351A/en
Publication of JPS5626351A publication Critical patent/JPS5626351A/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
    • H01J61/84—Lamps with discharge constricted by high pressure
    • H01J61/88—Lamps with discharge constricted by high pressure with discharge additionally constricted by envelope

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

PURPOSE:To make the distribution of temperature uniform, prevent the condensation of mercury, and stabilize the characteristics of a high-pressure mercury-arc lamp by forming the inner surface on the end portion of a luminous tube into a conical shape so that most of the coil of the main electrode are situated in the space of the conical portion. CONSTITUTION:The luminous tube 5 is supported by the support 4 inside the outer tube 1, and also is provided with the main electrodes 7 and the auxiliary electrode 10 inside. The inner surface on both ends of the luminous tube 5 is formed into the conically shaped portions 14 whose top angles are set up within a range of 45 and 90 deg.. Also, the coils 13 of the main electrodes 7 are situated in the space of the conically shaped portions 14 for more than 70% of each length.
JP10184179A 1979-08-10 1979-08-10 High-pressure mercury-arc lamp Pending JPS5626351A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10184179A JPS5626351A (en) 1979-08-10 1979-08-10 High-pressure mercury-arc lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10184179A JPS5626351A (en) 1979-08-10 1979-08-10 High-pressure mercury-arc lamp

Publications (1)

Publication Number Publication Date
JPS5626351A true JPS5626351A (en) 1981-03-13

Family

ID=14311279

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10184179A Pending JPS5626351A (en) 1979-08-10 1979-08-10 High-pressure mercury-arc lamp

Country Status (1)

Country Link
JP (1) JPS5626351A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6583565B2 (en) 2000-03-10 2003-06-24 Nec Microwave Tube, Ltd. High pressure discharge lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6583565B2 (en) 2000-03-10 2003-06-24 Nec Microwave Tube, Ltd. High pressure discharge lamp

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