Dynamic expansion of a distance measuring device having a variable optical attenuation element in the transmitting channel
US10921449B2 · kind B2 · utility
0Cited by
5References
15Claims
0Family size
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Key dates
| Filing date | Apr 21, 2017 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Dec 1, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/66
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A measuring device, in particular a tachymeter, laser scanner, profiler, or laser tracker, having an electronic laser distance measuring module, which comprises an optical transmitting channel having a transmitting unit and an optical receiving channel having a receiving unit for laser measuring radiation, wherein the beam guiding in the electronic laser distance measuring module is implemented by means of fiber optics, and wherein a settable attenuation unit based on an optically active crystal for attenuating the laser measuring radiation generated by the transmitting unit is provided in the optical transmitting channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.