Laser system selectively operable at two competing wavelengths
US5426662A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1994 |
| Grant date | Jun 20, 1995 |
| Priority date | — |
| Expiry date | Apr 28, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/105
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser system is disclosed which is capable of selectively generating radiation at two competing wavelength regions. A gas discharge tube is provided which includes krypton as the lasing medium. A primary mirror is mounted at one of the tube. A switchable mirror assembly is mounted at the other end of the tube. The mirror assembly includes a frame. A cradle is pivotally mounted in the frame and is rotatable between two angular positions. A pair of mirrors are mounted to the cradle in a manner such for each of the two angular positions of the cradle, one of the two mirrors is in optical alignment with discharge tube. Each of the mirrors is provided with a wavelength selective coating which permits operation of the laser at different wavelengths. In the preferred embodiment used for ophthalmic applications, the laser can selectively generate red light or light in the yellow/green regime.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.