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.

Date of Patent:
Jun. 21, 1988

Filed:

Sep. 11, 1985
Applicant:
Inventors:

Jun Nishida, Tokyo, JP;

Yoshikazu Kawauchi, Kawasaki, JP;

Hiroshi Miyama, Yokohama, JP;

Kaoru Tomii, Isehara, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
315366 ; 315 14 ; 313422 ; 313427 ;
Abstract

A charged-particle beam electric field deflector includes plural (n) pairs or sets of facing deflection electrodes to accelerate and deflect the beam. Different d.c. acceleration voltages are superimposed on a common deflection voltage and applied to the electrode pairs so that electrode pair k is responsive to acceleration voltage k and the common voltage, where k is selectively each of 1 . . . n. The distance between each pair of facing electrodes is constant or increases along the beam path, while the length of each of the deflection electrodes has a given relationship as a function of the distance between the facing electrodes of each pair. The deflector is used in a flat CRT.


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