JPS5637772A - Purity adjusting device - Google Patents

Purity adjusting device

Info

Publication number
JPS5637772A
JPS5637772A JP11324479A JP11324479A JPS5637772A JP S5637772 A JPS5637772 A JP S5637772A JP 11324479 A JP11324479 A JP 11324479A JP 11324479 A JP11324479 A JP 11324479A JP S5637772 A JPS5637772 A JP S5637772A
Authority
JP
Japan
Prior art keywords
purity
degree
magnetic field
compensation
adjustment
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
JP11324479A
Other languages
Japanese (ja)
Inventor
Shinichi Uno
Nobushi Suzuki
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 JP11324479A priority Critical patent/JPS5637772A/en
Publication of JPS5637772A publication Critical patent/JPS5637772A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/04—Diagnosis, testing or measuring for television systems or their details for receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

PURPOSE:To increase the efficiency for the purity adjustment, by applying the magnetic field to the side surface of the color TV cathode-ray tube via the magnetic field generator and then detecting the fluorescent width of the fixed pattern by giving a fixed shift to the position of the electronic beam. CONSTITUTION:The electronic guns 5R, 5G and 5B of the color TV cathode-ray tube 1 are energized by the picture pattern generator 8 and the driving circuit 7 to secure the display of the prescribed picture pattern. And the mislanding state is caused at the periphery of the display screen 1a of the tube 1 by the magnetic field generator 9. The photoelectric detectors 11 and 12 are provided in opposition to each other at the periphery of the screen 1a, and then the fluorescent width is detected from the display beam of the picture pattern. The detection values of the detectors 11 and 12 are stored in the memory 14, and the prescribed operation is carried out by the arithmetic circuit 15 to obtain the degree of compensation. Based on this degree of compensation, the purity adjusting mechanism 16 is actuated to shift the purity magnet 4 until the degree of compensation becomes zero. After adjustment of the purity, a decision 13 is given to the propriety of the position of the deflecting yoke 2, and then the position adjusting mechanisms 17 is actuated in accordance with the degree of position shift to perform a position adjustment of the yoke 2.
JP11324479A 1979-09-04 1979-09-04 Purity adjusting device Pending JPS5637772A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11324479A JPS5637772A (en) 1979-09-04 1979-09-04 Purity adjusting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11324479A JPS5637772A (en) 1979-09-04 1979-09-04 Purity adjusting device

Publications (1)

Publication Number Publication Date
JPS5637772A true JPS5637772A (en) 1981-04-11

Family

ID=14607214

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11324479A Pending JPS5637772A (en) 1979-09-04 1979-09-04 Purity adjusting device

Country Status (1)

Country Link
JP (1) JPS5637772A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6321724A (en) * 1986-07-14 1988-01-29 Matsushita Electric Ind Co Ltd Crt landing measuring instrument
JPS63241837A (en) * 1987-03-30 1988-10-07 Toshiba Corp Color purity adjusting method for color picture tube
JPH03259044A (en) * 1990-03-06 1991-11-19 Fuji Oil Co Ltd Production of soybean protein film

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6321724A (en) * 1986-07-14 1988-01-29 Matsushita Electric Ind Co Ltd Crt landing measuring instrument
JPS63241837A (en) * 1987-03-30 1988-10-07 Toshiba Corp Color purity adjusting method for color picture tube
JPH03259044A (en) * 1990-03-06 1991-11-19 Fuji Oil Co Ltd Production of soybean protein film

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