Patent ID: 11885981
Assignee: LG INNOTEK CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 7:
8. A camera module comprising:
a substrate;
a light source disposed on the substrate to output light;
a first optical member configured to scatter and output the light when the light is input;
a second optical member including a first liquid and a second liquid having a different refractive index from the first liquid, wherein an interface formed between the first liquid and the second liquid is changed according to an applied voltage, and the second optical member refracts and outputs the scattered light according to the interface when the scattered light is input; and
a controller configured to control magnitudes of voltages applied to the light source and the second optical member,
wherein the controller includes a gain control module configured to control the magnitude of the voltage input to the light source based on a temperature change of the camera module, and a safe module configured to control whether the voltage input to the light source based on output power of the light source is blocked.