Camera module, control method and apparatus, and electronic device

A control method, applied to a camera module, wherein the camera module comprises:

• a base;
• a lens, wherein the lens is disposed on the base;
• a substrate, wherein the substrate and the lens are sequentially arranged along an optical axis direction of the lens, and the substrate is movable along the optical axis direction of the lens;
• a photosensitive chip, wherein the photosensitive chip is disposed on the substrate, and the photosensitive chip is located between the lens and substrate;
• and
• a capacitor assembly, wherein the capacitor assembly comprises a first capacitor plate and a second capacitor plate, the first capacitor plate is disposed on the substrate, the second capacitor plate is disposed on the base, and the first capacitor plate is opposite the second capacitor plate;
• wherein the control method of camera module comprises:
• detecting a change in capacitance of the capacitor assembly;
• and
• controlling, based on the detected change in capacitance of the capacitor assembly, the substrate to move along the optical axis direction of the lens;
• wherein centers of the first capacitor plate and the second capacitor plate are located on an optical axis of the lens.

An electronic device, comprising a processor and a memory, wherein the memory stores a program or instructions capable of running on the processor, wherein the program or instructions, when executed by the processor, cause the electronic device to perform a control method applied to a camera module, wherein the camera module comprises:

• a base;
• a lens, wherein the lens is disposed on the base;
• a substrate, wherein the substrate and the lens are sequentially arranged along an optical axis direction of the lens, and the substrate is movable along the optical axis direction of the lens;
• a photosensitive chip, wherein the photosensitive chip is disposed on the substrate, and the photosensitive chip is located between the lens and substrate;
• and
• a capacitor assembly, wherein the capacitor assembly comprises a first capacitor plate and a second capacitor plate, the first capacitor plate is disposed on the substrate, the second capacitor plate is disposed on the base, and the first capacitor plate is opposite the second capacitor plate;
• wherein the control method of camera module comprises:
• detecting a change in capacitance of the capacitor assembly;
• and
• controlling, based on the detected change in capacitance of the capacitor assembly, the substrate to move along the optical axis direction of the lens;
• wherein centers of the first capacitor plate and the second capacitor plate are located on an optical axis of the lens.