Detection circuit, device and method for detecting light source flicker, and photoelectric detection device
US11910100B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2021 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Apr 22, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2001/444
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A detection circuit, a method for detecting light source flicker, a device for detecting light source flicker, and a photoelectric detection device are provided by the examples of the present disclosure, and the detection circuit includes a power supply; a photodiode configured to output a current based on a light source; a driving circuit connected in series with the photodiode and configured to generate an output voltage based on the current output by the photodiode, a current output by the power supply, and a resistive component, the driving circuit includes a plurality of circuits with different illumination correlation coefficients; and a control unit connected with the driving circuit and configured to select a circuit with a matched illumination correlation coefficient from the driving circuit to control the output voltage within a designate voltage range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.