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:
Jan. 18, 1977
Filed:
Apr. 18, 1975
Hitachi, Ltd., , JA;
Abstract
A beam of electrically charged particles for illuminating a specimen is deflected by a deflection means so that the specimen is scanned with the beam bi-dimensionally. The information signal thus produced by the specimen is detected by a detector means and fed to a display apparatus incorporating therein another deflection means. The information signal is deflected by the latter deflection means to scan the display screen and is displayed thereon as an information image. A wave form of a signal produced in the latter deflection means is detected by a wave form detector means, the output of which is applied to the first mentioned deflection means to thereby deflect the electrically charged particle beam with a signal having a wave form similar to the detected one.