Method for illuminating an object
US10241204B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2016 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Aug 13, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/894
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method is provided for illuminating an object and for determining a distance value R. The object is illuminated with a light source and the light intensity of the light source is switched at a time T0 from an intensity Iout,h to an intensity Iout,l being lower than Iout,h and switched back to Iout,h at a time T0+Tn. A signal value U is outputted at the end of an integration window time period which has such a predetermined delay relative to T0 that either Ttof or Ttof+Tn is between an integration start point in time Tsd of the integration window time period and an integration end point in time Tsd+Ts, with Ttof being a point in time when light with the intensity Iin,l arrives first at the photo element, and Ts is longer than Tn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.