JPS57174825A - Powder layer forming method onto inner face of bulb - Google Patents

Powder layer forming method onto inner face of bulb

Info

Publication number
JPS57174825A
JPS57174825A JP5815781A JP5815781A JPS57174825A JP S57174825 A JPS57174825 A JP S57174825A JP 5815781 A JP5815781 A JP 5815781A JP 5815781 A JP5815781 A JP 5815781A JP S57174825 A JPS57174825 A JP S57174825A
Authority
JP
Japan
Prior art keywords
bulb
inner face
powder layer
section
grounded
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
JP5815781A
Other languages
Japanese (ja)
Inventor
Hitoshi Yamazaki
Jun Imai
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 JP5815781A priority Critical patent/JPS57174825A/en
Publication of JPS57174825A publication Critical patent/JPS57174825A/en
Pending 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
    • H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
    • H01J9/22—Applying luminescent coatings
    • H01J9/221—Applying luminescent coatings in continuous layers
    • H01J9/225—Applying luminescent coatings in continuous layers by electrostatic or electrophoretic processes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)

Abstract

PURPOSE:To eliminate the powder layer removing process at the portion not requiring the powder layer, by covering the portion of the inner face of a bulb not requiring the powder layer with a grounded conductive shield surrounded with the insulator then blowing the charged powder into the bulb. CONSTITUTION:A glass bulb 1 for the outer tube of a mercury lamp applied with the pre-processing such as the coating of the surface with the charge prevention agent to lower the superficial resistance is secured by a grounded holder 2. Then a hollow tubular shield 4 having the outer face tightly contacting with the inner face of a bulb neck section 5 while having a grounded section 6 made of the conductive material and formed with an insulative shell 8 covering the outer-circumference of said section 6 is inserted into the neck section 5. Thereafter a nozzle 3 incoroporating a charger is inserted through the shield 4 into the bulb and the charged fluorescent powder is injected to be coated onto the inner face. Since the fluorescent material is not adhered to the inner face of the neck section, the wiping process can be eliminated.
JP5815781A 1981-04-17 1981-04-17 Powder layer forming method onto inner face of bulb Pending JPS57174825A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5815781A JPS57174825A (en) 1981-04-17 1981-04-17 Powder layer forming method onto inner face of bulb

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5815781A JPS57174825A (en) 1981-04-17 1981-04-17 Powder layer forming method onto inner face of bulb

Publications (1)

Publication Number Publication Date
JPS57174825A true JPS57174825A (en) 1982-10-27

Family

ID=13076153

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5815781A Pending JPS57174825A (en) 1981-04-17 1981-04-17 Powder layer forming method onto inner face of bulb

Country Status (1)

Country Link
JP (1) JPS57174825A (en)

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