Patent ID: 11910100
Assignee: OPPLE LIGHTING CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 4:
5. A device for detecting light source flicker, comprising:
a detection circuit that comprises:
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, wherein the driving circuit comprises 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 designated voltage range;

a V(λ) filter arranged on a light receiving surface of the photodiode of the detection circuit and configured to filter the light source detected by the detection circuit; and
a calculation unit configured to determine a light source flicker parameter for characterizing the light source according to the output voltage of the driving circuit of the detection circuit.