The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 20, 1992
Filed:
Aug. 28, 1990
Remy Polaert, Villecresnes, FR;
U.S. Philips Corporation, New York, NY (US);
Abstract
A cathode ray tube includes an electrostatic deflection system along the path of an electron beam e.sub.f and between an electron source and a display screen. The deflection system includes at least an electrostatic photodeflector including a photodetector which, in response to an incident light radiation, creates electric charges e.sub.p which modify the electric deflection field of the photodeflector. The photodeflector may be made up of three electrodes or two electrodes so that the electron beam e.sub.f and the electric charges e.sub.p generated are or are not situated in the same space. The photodetector may be a photocathode or a photodiode. The structure may be repetitive in order to form a distributed photodeflector along the path of the electron beam e.sub.f. The cathode ray tube may be used as part of an oscilloscope.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile