Method and apparatus for laser beam homogenization
US4793694A · kind A · utility
93Cited by
7References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 23, 1986 |
| Grant date | Dec 27, 1988 |
| Priority date | — |
| Expiry date | Apr 23, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0977
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light beam with non-uniform cross-sectional intensity profile is positioned into a central portion and two side lobes and the two side lobes are folded over the central portion to form a concentrated beam at a focus plane having substantially uniform intensity profile. The partitioning and folding may be done by mirror pairs disposed along the axis of the beam, or a trapezoidal prism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.