JPS55124939A - High-pressure electric discharge tube - Google Patents

High-pressure electric discharge tube

Info

Publication number
JPS55124939A
JPS55124939A JP3155779A JP3155779A JPS55124939A JP S55124939 A JPS55124939 A JP S55124939A JP 3155779 A JP3155779 A JP 3155779A JP 3155779 A JP3155779 A JP 3155779A JP S55124939 A JPS55124939 A JP S55124939A
Authority
JP
Japan
Prior art keywords
thickness
dimension
electric discharge
discharge tube
electrode portion
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
JP3155779A
Other languages
Japanese (ja)
Inventor
Hiroshi Washimi
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.)
NIPPON DENKI SYLVANIA KK
NEC Home Electronics Ltd
Original Assignee
NIPPON DENKI SYLVANIA KK
NEC Home Electronics 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 NIPPON DENKI SYLVANIA KK, NEC Home Electronics Ltd filed Critical NIPPON DENKI SYLVANIA KK
Priority to JP3155779A priority Critical patent/JPS55124939A/en
Publication of JPS55124939A publication Critical patent/JPS55124939A/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
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

PURPOSE:To promote a prolongation of life of the electric discharge tube, by deciding a thickness of the quartz bulb at an electrode portion and luminous portion to within an optimum range of dimension. CONSTITUTION:A thickness of the electrode portion including a diameter shrinked part (a') and an electrode sealed part (a) is chosen to a dimension from 0.5- 1.8mm. A thickness of the main luminous portion is taken to within a range from 0.3-1.0mm. A thickness of the luminous portion (b), if taken to a dimension less than 0.3mm, causes a strength to be short decreasing an effect of the life improvement. While a thickness of the electrode portion including the diameter shrinked part (a') and the sealed part (a), being mainly applied a mechanical stress, is made to a dimension above 0.5mm, however, the thickness exceeding a dimension of 1.8mm causes a temperature difference between inner and outer sides of a quartz bulb to increase, rendering more susceptible of caracking the tube due to the strain.
JP3155779A 1979-03-16 1979-03-16 High-pressure electric discharge tube Pending JPS55124939A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3155779A JPS55124939A (en) 1979-03-16 1979-03-16 High-pressure electric discharge tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3155779A JPS55124939A (en) 1979-03-16 1979-03-16 High-pressure electric discharge tube

Publications (1)

Publication Number Publication Date
JPS55124939A true JPS55124939A (en) 1980-09-26

Family

ID=12334473

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3155779A Pending JPS55124939A (en) 1979-03-16 1979-03-16 High-pressure electric discharge tube

Country Status (1)

Country Link
JP (1) JPS55124939A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006114505A (en) * 2004-10-18 2006-04-27 Heraeus Noblelight Ltd High-power discharge lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006114505A (en) * 2004-10-18 2006-04-27 Heraeus Noblelight Ltd High-power discharge lamp

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