Laser diode collimating system
US6873640B2 · kind B2 · utility
23Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 2002 |
| Grant date | Mar 29, 2005 |
| Priority date | — |
| Expiry date | Sep 28, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/005
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser diode collimating system comprises a collimating lens for receiving a laser beam from a laser diode LD. First and second orthogonally arranged cylindrical lenses are provided through which the laser beam passes. The cylindrical lenses are positioned so as to have a substantially common focal plane and operate substantially independently on the divergence and/or convergence of the laser beam in its fast axis and slow axis directions respectively. A convex lens, through which the beam passes, has a focus lying in the said common focal plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.