Laser leveling system
US5907907A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 1997 |
| Grant date | Jun 1, 1999 |
| Priority date | — |
| Expiry date | Jan 16, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S33/21
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides a laser leveling system for forming a reference line or a reference plane by a laser beam. The laser leveling system comprises a laser light emitting means for emitting a laser beam, a projection optical system for projecting the laser beam irradiated from the light emitting means, a rotating unit for rotating the light beam projected by the projection optical system, and a leveling means for tilting the rotating unit, whereby a horizontal reference plane and a vertical reference plane are formed by the light beam, and a reference irradiation spot is formed on the horizontal reference plane or on the vertical reference plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.