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:
Sep. 22, 1998
Filed:
Sep. 12, 1996
Jeol Ltd., Tokyo, JP;
Abstract
There is disclosed an electron-beam biprism for use in an electron-beam holographic interference microscope. The biprism comprises a rotary plate having a hole permitting passage of an electron beam, a biprism wire mounted to the rotary plate and electrically insulated from the rotary plate, a holder, a rotating mechanism, a heating mechanism for heating the biprism wire, a voltage source for applying a voltage to the biprism wire, and a pair of grounding electrodes extending parallel to the biprism wire which bridges across the hole. The rotary plate is rotatably held by the holder so as to be rotatable about the hole. The grounding electrodes are mounted to the rotary plate. The biprism wire is sandwiched between the grounding electrodes.