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:
Jun. 09, 2009
Filed:
Sep. 20, 2006
Christian J. Shackleton, Los Gatos, CA (US);
Raul Martin Wong Gutierrez, Windsor Locks, CT (US);
Thomas V. Hennessey, Jr., Lebanon, CT (US);
Christian J. Shackleton, Los Gatos, CA (US);
Raul Martin Wong Gutierrez, Windsor Locks, CT (US);
Thomas V. Hennessey, Jr., Lebanon, CT (US);
Coherent, Inc., Santa Clara, CA (US);
Abstract
In a COlaser a pre-ionizer is assembled in a flange configured to be attached to a laser-gas enclosure of the laser over an aperture in a wall of the enclosure. An aperture in the base of the flange is aligned over the aperture in the enclosure wall. The aperture in the pre-ionizer flange is covered by a ceramic membrane. A disc electrode is in contact with the ceramic membrane on a side of the membrane outside of the laser-gas enclosure. An RF potential applied to the disc electrode creates a corona discharge on the side of the ceramic membrane inside the enclosure. The corona discharge ionizes laser gas in the enclosure before RF power is applied to electrodes of the slab laser.