Rangefinder, rangefinding system, and rangefinding method
US12228684B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2019 |
| Grant date | Feb 18, 2025 |
| Priority date | — |
| Expiry date | Mar 2, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/89
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
To achieve a configuration of controlling a light source unit having a plurality of light sources and a rangefinder by individual clocks to allow for setting the light sources at optional positions. The output light of a plurality of light sources of the light source unit is reflected from an object's surface, and a ToF sensor captures the reflected light to calculate the distance to the object. A sensor clock that controls the image capturing timing of the ToF sensor is the clock specific to the rangefinder, which is different from a light source unit clock that controls the light emission timing of the light sources of the light source unit. The rangefinder creates a difference calculation formula of a plurality of distance calculation formulas used to calculate the distance from each light source to the rangefinder to calculate the distance to the object using the created difference calculation formula.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.