Laser rotary irradiating system for irradiating a laser beam
US5894123A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 1997 |
| Grant date | Apr 13, 1999 |
| Priority date | — |
| Expiry date | May 2, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C15/004
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Laser rotary irradiating system comprising a rotary irradiating system main unit and object reflectors including at least a first object reflector and a second object reflector. The rotary irradiating system main unit comprises a rotating and irradiating an irradiation light beam toward the object reflectors, a detector for detecting a reflection light beam reflected from the object reflectors and entering the rotary irradiating system main unit via the rotating unit, and a reflection light detection circuit for identifying the object reflectors from an output of the detector. The position and range of the scanning of the laser beam are determined based on the results of the detection, whereby each of the reflection surfaces of the object reflectors is divided into at least two portions, an irradiation position is confirmed by the first object reflector while the scanning position is confirmed by the second object reflector, and an irradiation light beam is irradiated for reciprocal scanning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.