Reflective prism device
US6295174A · kind A · utility
50Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2000 |
| Grant date | Sep 25, 2001 |
| Priority date | — |
| Expiry date | Feb 10, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C15/002
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides a reflective prism device, which comprises a prism unit and a data communication unit, and communication light being irradiated from a survey instrument toward said prism unit, whereby there is provided a light guide for guiding a part of said communication light entering said prism unit toward said data communication unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.