Gas laser having improved stability against environmental conditions
US4352185A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 18, 1980 |
| Grant date | Sep 28, 1982 |
| Priority date | — |
| Expiry date | Jul 18, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/03
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The laser is an internal mirror hermetically sealed design, utilizing an envelope made principally of glass. The effects of thermally produced distortion on mirror alignment are minimized by providing a thermally and electrically conductive liner in close contact with the envelope wall. Misalignment of the discharge-confining capillary tube is minimized by supporting its inner end by means of a concentric stiff but resilient spring, thus avoiding an unsupported cantilevered section of the capillary. Reliable starting even in environments where the ambient electromagnetic radiation is inadequate for gas ionization is secured by providing a radioactive source in the region of the anode electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.