Laser generating apparatus having an arrangement for converging and diverging excitation light
US5373527A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 1993 |
| Grant date | Dec 13, 1994 |
| Priority date | — |
| Expiry date | Aug 16, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser generating apparatus provided with the following is disclosed. That is to say, a rod shaped laser medium for receiving excitation light irradiation and emitting laser light having a prespecified wavelength, a reflecting tube having a central axis and possessing a rotating surface and two end surfaces, wherein an inner surface is made a reflecting surface, and the rod shaped laser medium is stored therewithin, and a virtual light source formation mechanism for forming an excitation virtual light source which can be construed as a point light source or a line light source, in the vicinity of the central axis. By means of this, a virtual light source having an energy distribution concentrated in the central part is formed, and it is possible to increase excitation efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.