What does the camera module mean? Assembly diagram of the camera module

What does camera module mean?Below, taking the G1 camera module developed by Huaxing Video as an example, we will give you a detailed introduction to the composition and functions of the camera module.

‍Camera module, English name Camera Compact Module, referred to as CCM. Camera module is an electronic device used to capture images and is an indispensable component of the camera. Camera module is usually composed of three main components: lens, image sensor, image processing chip, and then connected by a circuit board.

1. Lens

A lens is a device that can focus light onto an image sensor. It is usually a lens group consisting of several lenses. Lenses are divided into glass and plastic according to their materials. For example, 1G+5P represents a glass-plastic hybrid lens consisting of a glass lens and 5 plastic lenses. The choice of lens can be determined according to shooting requirements, such as wide-angle lens, telephoto lens, large aperture lens, etc.

2. Image sensor

Image sensor is the core component of camera module. There are hundreds or tens of millions of photodiodes on its surface. When the photodiodes are exposed to light, photoelectric effect will occur, converting the light signal into electrical signal. Currently, the main image sensors are CMOS (complementary metal oxide semiconductor) and CCD (charge coupled device).

3. Image processing chip (ISP/DSP/SOC)

The image processing chip DSP or system-level main control chip SOC undertakes the task of image processing. It can convert electrical signals into digital image signals and process the images through the internal image processor (ISP). These processing processes may include color correction, image enhancement, noise reduction, EIS anti-shake, etc.

4. Circuit board (PCB/FPC)

The circuit board is the carrier that connects the above components together. The circuit board of the camera module is divided into a printed circuit board (PCB) or a flexible circuit board (FPC), which is responsible for connecting the main control chip, sensors and other electronic components to achieve the normal operation of the camera module.

Camera moduleDuring operation, the light of an object is gathered by the lens and received by the image sensor and converted into an electrical signal. Then, after being processed by the image processing chip, the electrical signal is converted into a digital image signal and output to the digital signal processor for further processing. Finally, after a series of processing, the digital image signal is converted into an image signal in a standard GRB, YUV or other format.

Camera modules are widely used in various fields, including camera equipment, mobile phones, medical equipment, surveillance cameras, machine vision, industrial equipment, smart wearable devices, smart car cameras, etc. Its functions and performance have an important impact on the quality and accuracy of image capture.

In conclusion,Camera moduleAs a modular device that integrates main components such as main control chips, lenses and sensors, it plays an important role in electronic devices. Its complex structure and rich functions can meet the application needs of different fields. With the continuous development of science and technology, the performance and application fields of camera modules will continue to expand, bringing people more convenient and high-quality shooting and monitoring experience.