Side by side laser level device
US6909551B1 · kind B1 · utility
3Cited by
9References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 2004 |
| Grant date | Jun 21, 2005 |
| Priority date | — |
| Expiry date | May 5, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/144
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser level includes a pair of level units arranged side by side and disposed in different oriented directions. Each laser level includes a laser light source adapted to emit a laser beam, a beam splitter adapted to simultaneously split the beam into first and second light beams along perpendicular first and second directions, and a first and a second aspheric-cylindrical lenses respectively arranged in the first and the second directions. The first and the second aspheric-cylindrical lenses have two optical axes respectively extending along the first and second directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.