Gas laser
US4649546A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 6, 1984 |
| Grant date | Mar 10, 1987 |
| Priority date | — |
| Expiry date | Feb 6, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/0323
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A gas laser, includes: PA0 a tube having two ends to be filled with gas; and PA0 a plate-shaped window hermetically sealing at least one of the ends of the tube; PA0 the window including a carrier plate and a layer coating the inside of the carrier plate; PA0 the tube being formed of a first material with a first thermal coefficient of expansion (H.sub.1) at least in vicinity of the one end thereof having the window; PA0 the layer being formed of a second material with a second thermal coefficient of expansion (H.sub.2); PA0 the carrier plate being formed of a third material with a third thermal coefficient of expansion (H.sub.3); PA0 the first and second materials being unadapted to each other; and PA0 the third material being thermally matched to the first material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.