SU720805A1 - Device for automatically focusing the beam of cathode ray tube - Google Patents
Device for automatically focusing the beam of cathode ray tube Download PDFInfo
- Publication number
- SU720805A1 SU720805A1 SU772502215A SU2502215A SU720805A1 SU 720805 A1 SU720805 A1 SU 720805A1 SU 772502215 A SU772502215 A SU 772502215A SU 2502215 A SU2502215 A SU 2502215A SU 720805 A1 SU720805 A1 SU 720805A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- input
- ray tube
- cathode ray
- output
- limiter
- Prior art date
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- Details Of Television Scanning (AREA)
- Electron Beam Exposure (AREA)
Description
(54) УСТРОЙСТВО ДЛЯ АВТОМАТИЧЕСКОЙ ФОКУСИРОВКИ ЛУЧА ЭЛЕКТРОННОЛУЧЕВОЙ ТРУБКИ(54) DEVICE FOR AUTOMATIC FOCUSING OF RADIATION OF ELECTRON-BEAM PIPE
энергию поступающего на его вход бинарноквантованного сигнала и формирует на выходе сигнал качества фокусировки, который ffpKHHiaaiet йиншалеиое зт йчение при наилучшей фокусировке, т. е. форЮруеТ экстремальную характеристику, имеющую экстремум-минимум. Сброс интегратора 6 осуществл етс синхронизатором 7, который задаёт вреШ интегрйрбШшШ;the energy of a binary-quantized signal arriving at its input generates a focus quality signal at the output, which is a finite point for the best focusing, that is, forms an extreme characteristic with an extreme minimum. The reset of the integrator 6 is performed by the synchronizer 7, which specifies the time of the integrator;
Далее сигнал качества фокусировки с выхода интегратора 6 поступает на вход экстремального регул тора 8.Next, the focus quality signal from the output of the integrator 6 is fed to the input of the extreme regulator 8.
..----.-.--..--.-. - -. ... ----.-. - .. - .-. - -. .
-.fix--f : f :-.fix - f: f:
В экстремальном регул торе 8 происходит преобразование цифрового сигнала качества регулировки в аналоговый, с|Гав:нение теткрйёго по результатам сравнени вырабатшаетс сигнал управлени , которьш 6 аналоговом виде подаетс на вход источника 9 фокусирующего тока, соединенного с входом фокусировки ЭЛТ 1. Работа всего устройства синхронизируетс сигналами синхронизатора 7.In the extreme controller 8, the digital signal of the quality of adjustment is converted to analog, c | wf: comparing a control signal produced, which gives an analogue signal to the input of the focusing current source 9 connected to the focusing input of the CRT 1. The operation of the entire device is synchronized synchronizer signals 7.
Предложенное устройстйо позвол ет существенно повысить точность фокусировки луча ЭЛТ.: , The proposed device allows to significantly improve the focusing accuracy of a CRT beam:
702805702805
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772502215A SU720805A1 (en) | 1977-07-04 | 1977-07-04 | Device for automatically focusing the beam of cathode ray tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772502215A SU720805A1 (en) | 1977-07-04 | 1977-07-04 | Device for automatically focusing the beam of cathode ray tube |
Publications (1)
Publication Number | Publication Date |
---|---|
SU720805A1 true SU720805A1 (en) | 1980-03-05 |
Family
ID=20715780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU772502215A SU720805A1 (en) | 1977-07-04 | 1977-07-04 | Device for automatically focusing the beam of cathode ray tube |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU720805A1 (en) |
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1977
- 1977-07-04 SU SU772502215A patent/SU720805A1/en active
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