JPS55157841A - Manufacture of cathode-ray tube panel for observation - Google Patents

Manufacture of cathode-ray tube panel for observation

Info

Publication number
JPS55157841A
JPS55157841A JP6552779A JP6552779A JPS55157841A JP S55157841 A JPS55157841 A JP S55157841A JP 6552779 A JP6552779 A JP 6552779A JP 6552779 A JP6552779 A JP 6552779A JP S55157841 A JPS55157841 A JP S55157841A
Authority
JP
Japan
Prior art keywords
mold
scale marks
observation
braun
jar
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
JP6552779A
Other languages
Japanese (ja)
Inventor
Katsuo Suzuki
Masahiro Yoshida
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.)
SHIBASON KK
Original Assignee
SHIBASON KK
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 SHIBASON KK filed Critical SHIBASON KK
Priority to JP6552779A priority Critical patent/JPS55157841A/en
Publication of JPS55157841A publication Critical patent/JPS55157841A/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
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/244—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for cathode ray tubes
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
    • C03B11/06—Construction of plunger or mould
    • C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
    • C03B11/082—Construction of plunger or mould for making solid articles, e.g. lenses having profiled, patterned or microstructured surfaces
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
    • C03B11/06—Construction of plunger or mould
    • C03B11/10—Construction of plunger or mould for making hollow or semi-hollow articles
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2215/00—Press-moulding glass
    • C03B2215/40—Product characteristics
    • C03B2215/41—Profiled surfaces
    • C03B2215/412—Profiled surfaces fine structured, e.g. fresnel lenses, prismatic reflectors, other sharp-edged surface profiles

Landscapes

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

Abstract

PURPOSE:To obtain high accuracy in mass production of panels and obtain uniform accuracy on the whole products by cutting the scale marks on the image forming surface of a Braun jar mold and pressing a gob onto the surface, forming the scale marks for observation in convex form on the inner surface of the molded panel. CONSTITUTION:Onto the image forming surface 2 of a Braun jar mold 1, the scale marks for observation such as standard lines 3, 3', and scale marks 4, 4,..., 4', 4'... having prescribed width and prescribed depth are cut through proper machine cutting under NC control. Using the Braun jar mold 1 having the scale marks previously cut, the metal mold 7 having the bottom mold 6, and the body mold 5 for synchoscope panel forming are united in a set, and gob 8 is supplied to the bottom mold 6 by a prescribed amount and pressed by applying pressure by a prescribed value onto the Braun jar mold 1. Thus, simultaneously with panel forming, the formation of the scale marks for observation which are convex on the image surface can be obtained with unifrom accuracy.
JP6552779A 1979-05-29 1979-05-29 Manufacture of cathode-ray tube panel for observation Pending JPS55157841A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6552779A JPS55157841A (en) 1979-05-29 1979-05-29 Manufacture of cathode-ray tube panel for observation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6552779A JPS55157841A (en) 1979-05-29 1979-05-29 Manufacture of cathode-ray tube panel for observation

Publications (1)

Publication Number Publication Date
JPS55157841A true JPS55157841A (en) 1980-12-08

Family

ID=13289568

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6552779A Pending JPS55157841A (en) 1979-05-29 1979-05-29 Manufacture of cathode-ray tube panel for observation

Country Status (1)

Country Link
JP (1) JPS55157841A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5211754A (en) * 1975-07-17 1977-01-28 Nippon Electric Glass Co Ltd Panel for television tube

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5211754A (en) * 1975-07-17 1977-01-28 Nippon Electric Glass Co Ltd Panel for television tube

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