JPS55146860A - Flash discharge lamp - Google Patents

Flash discharge lamp

Info

Publication number
JPS55146860A
JPS55146860A JP5491179A JP5491179A JPS55146860A JP S55146860 A JPS55146860 A JP S55146860A JP 5491179 A JP5491179 A JP 5491179A JP 5491179 A JP5491179 A JP 5491179A JP S55146860 A JPS55146860 A JP S55146860A
Authority
JP
Japan
Prior art keywords
radiating fins
heat
space
trigger
reflecting mirror
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.)
Granted
Application number
JP5491179A
Other languages
Japanese (ja)
Other versions
JPS593831B2 (en
Inventor
Toyohiko Takahashi
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP54054911A priority Critical patent/JPS593831B2/en
Publication of JPS55146860A publication Critical patent/JPS55146860A/en
Publication of JPS593831B2 publication Critical patent/JPS593831B2/en
Expired 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
    • H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
    • H01J61/547—Igniting arrangements, e.g. promoting ionisation for starting using an auxiliary electrode outside the vessel

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)
  • Fixing For Electrophotography (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Projection Apparatus (AREA)

Abstract

PURPOSE:To minimize the space occupied by a reflecting mirror and also insulated space between a reflecting mirror and a discharge tube by the method in which a conductive light reflector is attached concentrically to a tubular bulb and heat- radiating fins are formed on the periphery of the end of the reflector, serving as a ring trigger electrode. CONSTITUTION:The metal conductor 5, whose surface is plated with a light reflective metal, e.g., Cr, etc., and also provided with plural heat-radiating fins 5a, is closely attached to the outer surface of the tubular bulb 1. The conductor 5 is a cylinder the light-permeable opening 5a and its both ends are provided with the ring-like leg 5c as the trigger electrodes and one of the heat-radiating fins 5a is connected to the trigger lead 6. Thus, the space required, including insulated space, can be minimized and the utilizing efficiency of radiation energy can be raised.
JP54054911A 1979-05-04 1979-05-04 flash discharge device Expired JPS593831B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54054911A JPS593831B2 (en) 1979-05-04 1979-05-04 flash discharge device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54054911A JPS593831B2 (en) 1979-05-04 1979-05-04 flash discharge device

Publications (2)

Publication Number Publication Date
JPS55146860A true JPS55146860A (en) 1980-11-15
JPS593831B2 JPS593831B2 (en) 1984-01-26

Family

ID=12983775

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54054911A Expired JPS593831B2 (en) 1979-05-04 1979-05-04 flash discharge device

Country Status (1)

Country Link
JP (1) JPS593831B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5968768A (en) * 1982-10-13 1984-04-18 Fujitsu Ltd Fixation device for printing device
JPS62116356U (en) * 1986-01-14 1987-07-24

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5968768A (en) * 1982-10-13 1984-04-18 Fujitsu Ltd Fixation device for printing device
JPS62116356U (en) * 1986-01-14 1987-07-24

Also Published As

Publication number Publication date
JPS593831B2 (en) 1984-01-26

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