Laser light receiver apparatus with automatically adjustable zero-reference point
US7414704B1 · kind B1 · utility
14Cited by
20References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 25, 2007 |
| Grant date | Aug 19, 2008 |
| Priority date | — |
| Expiry date | Jul 25, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C15/006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved laser light receiver is provided that senses a laser light beam and determines positional elevation of the laser receiver based on the position where the laser light beam impacts the light sensors of the laser receiver. The laser receiver automatically adjusts its zero-reference point when it senses a magnet that has been mounted on a clamping device that holds the housing of the laser light detector in at least two predetermined attitudes with respect to the clamping device. Thus the invention operates as a clamp-actuated “offset” on-grade mode for the laser receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.