Confocal scanner having beam spread angle adjustment device
US7592582B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2006 |
| Grant date | Sep 22, 2009 |
| Priority date | — |
| Expiry date | Sep 10, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B21/0032
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is achieved a confocal scanner capable of being adjusted can be achieved with ease so as to be in a well-balanced state where a utilization ratio of an excited light is high and light quantity distribution on the cross-section of beams is excellent in evenness even in the case of being coupled with an optical fiber varying in a beam spread-angle. The confocal scanner is provided with a collimator lens for causing beams outgoing from an emission end of an optical fiber for guiding an excited light, with a predetermined spread-angle, to be converted into collimated beams before falling on a microlens disk, wherein a beam spread-angle adjusting means for adjusting the spread-angle is provided between the emission end, and the collimator lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.