Argon-ion gas laser cathode construction
US4434493A · kind A · utility
7Cited by
2References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 3, 1981 |
| Grant date | Feb 28, 1984 |
| Priority date | — |
| Expiry date | Dec 3, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/038
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An improved argon-ion gas laser utilizes a dispenser-type cathode and within the cathode shroud mounts a preignition electrode and a heat shield enabling the cathode to be operated efficiently and within a 900.degree.-1050.degree. C. temperature range over an extended period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.