JPS5619847A - Manufacturing process for discharge lamp - Google Patents

Manufacturing process for discharge lamp

Info

Publication number
JPS5619847A
JPS5619847A JP9377879A JP9377879A JPS5619847A JP S5619847 A JPS5619847 A JP S5619847A JP 9377879 A JP9377879 A JP 9377879A JP 9377879 A JP9377879 A JP 9377879A JP S5619847 A JPS5619847 A JP S5619847A
Authority
JP
Japan
Prior art keywords
melting pot
glass
discharge lamp
melting
injected
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
JP9377879A
Other languages
Japanese (ja)
Other versions
JPS6256620B2 (en
Inventor
Mikiya Yamane
Yoshio Watanabe
Norio Kanai
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 JP9377879A priority Critical patent/JPS5619847A/en
Publication of JPS5619847A publication Critical patent/JPS5619847A/en
Publication of JPS6256620B2 publication Critical patent/JPS6256620B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/245—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps
    • H01J9/247—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps specially adapted for gas-discharge lamps

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

PURPOSE:To improve the luminous efficiency of a discharge lamp by injecting fibrous glass from an opening part of a melting pot by a centrifugal force caused when the melting pot melting glass is revolving inside a discharge lamp and filling uniformly the inside of melting pot with the injected fibrous glass. CONSTITUTION:A melting pot 3 made of Pt-Rh is heated by moving a heating furnace 1 upwards and glass 4 housed inside is melted. After that, moving the heating furnace 1 downwards by the operation of an air cylinder 2 and arranging a discharge bulb 5, the melting pot 3 is revolved at a high speed by a motor 6. An opening hole is provided in the inside wall of the melting pot 3. The melted glass 4 is injected from the hole by a centrifugal force and the inside of the bulb 5 is filled uniformly with fibrous glass.
JP9377879A 1979-07-25 1979-07-25 Manufacturing process for discharge lamp Granted JPS5619847A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9377879A JPS5619847A (en) 1979-07-25 1979-07-25 Manufacturing process for discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9377879A JPS5619847A (en) 1979-07-25 1979-07-25 Manufacturing process for discharge lamp

Publications (2)

Publication Number Publication Date
JPS5619847A true JPS5619847A (en) 1981-02-24
JPS6256620B2 JPS6256620B2 (en) 1987-11-26

Family

ID=14091868

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9377879A Granted JPS5619847A (en) 1979-07-25 1979-07-25 Manufacturing process for discharge lamp

Country Status (1)

Country Link
JP (1) JPS5619847A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5517342A (en) * 1978-07-25 1980-02-06 Toyama Chem Co Ltd Cephalosporin composition for rectal administaration
JPS61268617A (en) * 1985-05-23 1986-11-28 Showa Yakuhin Kako Kk Urea-containing suppository

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52113581A (en) * 1976-03-18 1977-09-22 Philips Nv Method for manufacture of low pressure* vapor discharge lamp

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52113581A (en) * 1976-03-18 1977-09-22 Philips Nv Method for manufacture of low pressure* vapor discharge lamp

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5517342A (en) * 1978-07-25 1980-02-06 Toyama Chem Co Ltd Cephalosporin composition for rectal administaration
JPS61268617A (en) * 1985-05-23 1986-11-28 Showa Yakuhin Kako Kk Urea-containing suppository
JPS6331443B2 (en) * 1985-05-23 1988-06-23 Showa Pharm Chem Ind

Also Published As

Publication number Publication date
JPS6256620B2 (en) 1987-11-26

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