JPS55155443A - Inspection of color cathode-ray tube - Google Patents

Inspection of color cathode-ray tube

Info

Publication number
JPS55155443A
JPS55155443A JP6323779A JP6323779A JPS55155443A JP S55155443 A JPS55155443 A JP S55155443A JP 6323779 A JP6323779 A JP 6323779A JP 6323779 A JP6323779 A JP 6323779A JP S55155443 A JPS55155443 A JP S55155443A
Authority
JP
Japan
Prior art keywords
panel
ray tube
reference dot
color cathode
central position
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
JP6323779A
Other languages
Japanese (ja)
Inventor
Tadao Sakamoto
Yutaka Yoneyama
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP6323779A priority Critical patent/JPS55155443A/en
Publication of JPS55155443A publication Critical patent/JPS55155443A/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
    • H01J9/42—Measurement or testing during manufacture

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 perform a precise analysis of various characteristics of a color cathode- ray tube by detecting the absolute value of a difference between the central position on an effective area of a panel determined by a panel pad and the central position of a fluorescent screen determined by a reference dot. CONSTITUTION:A bulb of a color cathode-ray tube is supported by a bulb support 33 provided on a bottom portion 32 of an inspecting device 31 and positioned by a panel pad retainer 34. When an ideal reference dot, namely, the central position on a fluorescent screen determined by the reference dot coincides with the central position on an effective area of a panel determined by the panel pad retainer 34 and a panel pad, the positions of four microscopes 38 are aligned with the zero points of their corresponding dial gauges 39, 40. Rasta is drawn on the entire panel surface of the color cathode-ray tube and the reference dot is not in alignment with eye position, sliders 41, 42 are moved, and scales of the dial gauges 39, 40 are read when the reference dot is brought into alignment with the eye position.
JP6323779A 1979-05-24 1979-05-24 Inspection of color cathode-ray tube Pending JPS55155443A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6323779A JPS55155443A (en) 1979-05-24 1979-05-24 Inspection of color cathode-ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6323779A JPS55155443A (en) 1979-05-24 1979-05-24 Inspection of color cathode-ray tube

Publications (1)

Publication Number Publication Date
JPS55155443A true JPS55155443A (en) 1980-12-03

Family

ID=13223403

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6323779A Pending JPS55155443A (en) 1979-05-24 1979-05-24 Inspection of color cathode-ray tube

Country Status (1)

Country Link
JP (1) JPS55155443A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4973280A (en) * 1988-07-22 1990-11-27 Zenith Electronics Corporation Method and apparatus for making flat tension mask color cathode ray tubes
US5059147A (en) * 1988-07-22 1991-10-22 Zenith Electronics Corporation Method and apparatus for making flat tension mask color cathode ray tubes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4973280A (en) * 1988-07-22 1990-11-27 Zenith Electronics Corporation Method and apparatus for making flat tension mask color cathode ray tubes
US5059147A (en) * 1988-07-22 1991-10-22 Zenith Electronics Corporation Method and apparatus for making flat tension mask color cathode ray tubes

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