Position detection surveying device
US6046800A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1998 |
| Grant date | Apr 4, 2000 |
| Priority date | — |
| Expiry date | Jan 29, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C15/002
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a position detection surveying device for detecting a position of a target, and more particularly to a position detection surveying device which is most suitable for an automatic surveying apparatus and, without using expensive acoustooptic devices, can be miniaturized and manufactured so that it saves the electric power. In the present invention, a light emitting means irradiates a target with a light which is sector-shaped in an up-and-down direction, and a light receiving means receives a reflected light from the target, and a rotating means rotates in a horizontal direction a portion comprising at least the light emitting means and the light receiving means, and a computational processing means is able to detect a position of the target in accordance with a light reception signal from the light receiving means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.