Light wave distance meter
US5212533A · kind A · utility
30Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1991 |
| Grant date | May 18, 1993 |
| Priority date | — |
| Expiry date | Nov 13, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/36
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention concerns a light wave distance meter which comprises a telescope unit supported on a framework such that the unit can rotate about a horizontal axis. This unit being provided with a telescope having a target in its line of sight, with an analog photoemitter which directs modulated light emitted by an optical device at the target, and with an analog photodetector which receives modulated light reflected from said target so as to measure the distance to said target.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.