Patent · US Expired

Gas laser having a cylindrically-shaped discharge tube

US4238743A · kind A · utility

7Cited by

2References

12Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Hans Golser · Munich, DE
Erich Kirschner · Munich, DE

Key dates

Filing date	Nov 29, 1978
Grant date	Dec 9, 1980
Priority date	—
Expiry date	Nov 29, 1998

Classification

Technology area (CPC H)Electricity
CPC primaryH01S3/034
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A gas laser havinng a cylindrically-shaped discharge tube in which at least one end is terminated with a metal end cap which supports a mirror body in its central area, supports a metal pump stem in a position eccentric to the longitudinal axis of the tube and supports a thermal compensation element in a position opposite and radially symmetrical to the pump stem whereby at gas laser operating temperatures, the compensation element deforms the metal end cap to substantially the same extent as the pump stem so that the influence of cap deformation on the mirror orientation relative to the longitudinal axis of the tube is minimized or at least approximately compensated.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.