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JPS5258416A - Focus voltage adjusting method - Google Patents

Focus voltage adjusting method

Info

Publication number
JPS5258416A
JPS5258416A JP50135359A JP13535975A JPS5258416A JP S5258416 A JPS5258416 A JP S5258416A JP 50135359 A JP50135359 A JP 50135359A JP 13535975 A JP13535975 A JP 13535975A JP S5258416 A JPS5258416 A JP S5258416A
Authority
JP
Japan
Prior art keywords
focus voltage
adjusting method
voltage adjusting
white line
focus
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
JP50135359A
Other languages
Japanese (ja)
Inventor
Akira Usui
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP50135359A priority Critical patent/JPS5258416A/en
Publication of JPS5258416A publication Critical patent/JPS5258416A/en
Pending legal-status Critical Current

Links

Landscapes

  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

PURPOSE: To obtain optimum focus without relying on visual means, by picturing a white line on the picture of CRT for TV receivers etc., by measuring this white line, and by adjusting the focus voltage so that the integrating value of this brightness signals.
COPYRIGHT: (C)1977,JPO&Japio
JP50135359A 1975-11-10 1975-11-10 Focus voltage adjusting method Pending JPS5258416A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50135359A JPS5258416A (en) 1975-11-10 1975-11-10 Focus voltage adjusting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50135359A JPS5258416A (en) 1975-11-10 1975-11-10 Focus voltage adjusting method

Publications (1)

Publication Number Publication Date
JPS5258416A true JPS5258416A (en) 1977-05-13

Family

ID=15149893

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50135359A Pending JPS5258416A (en) 1975-11-10 1975-11-10 Focus voltage adjusting method

Country Status (1)

Country Link
JP (1) JPS5258416A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497399A1 (en) * 1980-12-31 1982-07-02 Rca Corp DEVICE FOR DETECTING THE FOCUSING OF AN ELECTRON BEAM IN A TUBE-IMAGE AND METHOD FOR DETECTING AND ADJUSTING THE FOCUSING

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497399A1 (en) * 1980-12-31 1982-07-02 Rca Corp DEVICE FOR DETECTING THE FOCUSING OF AN ELECTRON BEAM IN A TUBE-IMAGE AND METHOD FOR DETECTING AND ADJUSTING THE FOCUSING
US4387394A (en) * 1980-12-31 1983-06-07 Rca Corporation Sensing focus of a color kinescope

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