Electric lamp and discharge devices: systems – Cathode ray tube circuits – Cathode-ray deflections circuits
Patent
1986-08-06
1987-10-20
Blum, Theodore M.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Cathode-ray deflections circuits
358219, G01S 316, G01S 328, G01S 100
Patent
active
047016795
ABSTRACT:
In an image pickup tube including a cathode, a first grid electrode disposed as a next stage of the cathode and provided with an aperture, a second grid electrode disposed as a next stage of the first grid electrode and provided with an aperture, and a photoconductive target, the first grid electrode is operated by a voltage positive with respect to the cathode. To control the amount of the electron beam of the image pickup tube, a voltage corresponding to a signal current obtained from the photoconductive target of the image pickup tube or to a return beam from the photoconductive target is applied to the second grid electrode in such a manner that a polarity of the applied voltage is opposite to a polarity of a signal charge generated on the photoconductive target.
REFERENCES:
patent: 3999011 (1976-12-01), Sato et al.
patent: 4151552 (1979-04-01), Sato et al.
patent: 4306251 (1981-12-01), Safar
Kudo Koji
Maruyama Masanori
Mimura Itaru
Nagahara Shusaku
Satou Kazuhiro
Blum Theodore M.
Hitachi , Ltd.
LandOfFree
Method of and apparatus for controlling amount of electron beam does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of and apparatus for controlling amount of electron beam , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and apparatus for controlling amount of electron beam will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1614398