Fiber optic based laser range finder
US9983298B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 2, 2016 |
| Grant date | May 29, 2018 |
| Priority date | — |
| Expiry date | Nov 11, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/36
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Laser rangefinders and methods of using laser rangefinders are disclosed. One embodiment of a laser rangefinder includes a first DDS (direct digital synthesizer) outputting a first reference signal, an isolated laser source that receives the first signal and outputs an optical signal, a collimating lens coupled to the isolated laser source adapted to direct the optical signal to free space, a collecting lens positioned adjacent to the collimating lens adapted to receive a modulated optical signal from free space, a pin diode detector coupled to collecting lens, a second DDS outputting a second reference signal, and a computing device adapted to receive the first reference signal, the second reference signal, and the received modulated optical signal and calculate a distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.