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:
Jul. 28, 1992
Filed:
May. 22, 1991
Carl-Zeiss-Stiftung, Heidenheim, DE;
Abstract
The invention is directed to a high-voltage lead-through arrangement for introducing a high voltage into an enclosure wherein a vacuum is maintained such as for particle-beam apparatus. The arrangement includes: a high-voltage electrode for carrying a high potential; an insulator enclosing the high-voltage electrode and having a surface defining a boundary with the vacuum; and, an outer low-voltage electrode surrounding the insulator for carrying a low potential. The electrodes are spaced from each other by an electrode spacing measured along the surface of the insulator. The high-voltage electrode and the insulator conjointly define a first region wherein the high potential is present to a good approximation; and the first region is bounded by the insulator surface for a first distance of up to approximately 1/10 of the electrode spacing. The low-voltage electrode and the insulator conjointly define a second region wherein the low potential is present to a good approximation and the second region is bounded by the insulator surface for a second distance of up to approximately 1/10 of the electrode spacing. With this arrangement, the high-voltage lead-through can be operated at a higher voltage than the known configurations without the occurrence of micro-discharges.