Laser beam device with apertured reflective element
US6542304B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2000 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | May 16, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/648
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A multi-beam tool is disclosed which can perform square, plumb, and level function which may be required in a construction environment. The tool can generate in a preferred embodiment up to five orthogonal beams with two beams being plumb and three beams being leveled. Combinations of two level beams, or a level and a plumb beam in orthogonal arrangement can produce a square alignment set of beams. The tool includes in a preferred arrangement a self-leveling pendulum to which a laser and quad-mirror arrangement is secured. The self-leveling pendulum is damped in order to allow the tool to settle down and provide alignment after the tool is positioned as desired. The quad-mirror, the magnetic damping, and the coiled wire allowing power to be provided to the laser assembly, each separately, and also in combination, provide for a compact tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.