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. 19, 1988
Filed:
Jul. 09, 1986
Applicant:
Inventor:
Kyoichi Deki, Himeji, JP;
Assignee:
Ushio Denki, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372 37 ; 372 33 ; 372109 ;
Abstract
An apparatus for preventing an optical element of a gas laser from being contaminated by vapor. This apparatus comprises pairs of magnets which apply magnetic fields to charged particles moving in the direction of the optical axis of the gas laser so as to deflect them transversely to the optical axis, and a screen for intercepting charged particles moving transversely to the optical axis of the gas laser.