Graded index cylindrical microlens for laser diode beam correction
US5875058A · kind A · utility
2Cited by
2References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 11, 1997 |
| Grant date | Feb 23, 1999 |
| Priority date | — |
| Expiry date | Apr 11, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/005
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A graded-index microcylindrical lens functioning in combination with a laser diode beam to change the divergence of the fast axis on an incoming laser beam from one divergence to another, but not to collimate the beam. In one embodiment of the present invention, the graded-index microcylindrical lens changes the divergence of one axis of the laser beam to be substantially equal to the divergence of the slow axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.