Gas laser device
US4143338A · kind A · utility
7Cited by
5References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 1977 |
| Grant date | Mar 6, 1979 |
| Priority date | — |
| Expiry date | Jan 3, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/0973
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A gas laser device includes, in succession along an optical axis, a gas laser excited by a travelling wave, a convergent lens, two parallel-sided optical prisms adhering to one another in a symmetrical position in relation to the axis, and another convergent lens. The arrangement is such that two divergent elementary beams produced by the laser are brought together to have substantially less divergence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.