Gas laser tube and method for manufacturing the same

US4864582A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Heinz Barth · Munich, DE
• Erwin Hubner · Grafing, DE
• Hinrich Heynisch · Gräfelfing, DE
• Adolf Schneider · Schwäbisch Hall, DE

Key dates

• Filing date: Jun 28, 1985
• Grant date: Sep 5, 1989
• Expiry date: Jun 28, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2237/765
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A gas laser tube assembly includes a gas laser tube having ends, optical elements each vacuum-tightly closing off a respective end of the gas laser tube, each of the optical elements including a washer-shaped ceramic flange and a terminating plate being transparent to laser radiation and thermally matched to the ceramic flange, the ceramic flange having an outer rim joined to the gas laser tube and a central beam passage opening formed therein, and the terminating plate having two base surfaces, and glass solder connecting the terminating plate to the ceramic flange with the terminating plate covering the beam passage opening and projecting beyond the ceramic flange with at least one of the base surfaces thereof and a method of manufacturing the same.