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. 15, 1980
Filed:
May. 08, 1978
Applicant:
Inventors:
Robertus A Keijser, Eindhoven, NL;
Gustaaf A Wesselink, Eindhoven, NL;
Bram J Derksema, Eindhoven, NL;
Johannes A Verhoeven, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
331 / ; 331 / ;
Abstract
A gas discharge laser in which at least the inner wall of the laser tube is manufactured for the greater part from a gehlenite glass thereby providing a laser having a long life. The gehlenite glass can better withstand the eroding effect of the gas discharge so that the rate at which the optical elements are contaminated is greatly reduced.