Device and method for measuring distance values and distance images
US9897691B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2015 |
| Grant date | Feb 20, 2018 |
| Priority date | — |
| Expiry date | Apr 8, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/18
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A distance camera includes at least one photo element, a trigger generator activating the photo element during a temporal integration gate, a light source illuminating an object with light pulses having a predetermined temporal intensity profile with a duration Tp, and an intensity sensor determining the intensity Ip of the light pulses arriving on the photo element. The integration gate has a predetermined delay to the light pulse emission start point in order to capture the light pulses back reflected from the object. The photo element outputs a signal value U at an integration end point in time T1e and in accordance with an intensity Ip and a duration of the light pulse arriving on the photo element during its activation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.