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:
Nov. 09, 1982
Filed:
Nov. 26, 1980
Applicant:
Inventor:
Frank H Read, Macclesfield, GB;
Assignee:
Kratos Limited, Urmston, GB;
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
250305 ;
Abstract
An electron spectrometer includes a hemispherical analyzer and a multi-element optical lens system. The lens system has, at its entrance, two spaced apart mesh elements which are concave toward the sample, for reducing the lens aberrations, and switching means operable to change the potentials on the lens elements to optimize the performance of the spectrometer for both Auger Electron Spectrometry and X-ray Spectrometry.