Camera Module (CCM)

Camera features

Camera Compact Module, CCM, is an important component of impact capture

Camera internal decomposition

(1) Working principle

Inside the light through the Camera Lens into the camera, and then through the IR Filter to Filter the infrared, finally reach the sensor (sensor), senor, divided into according to the material can be divided into two CMOS and CCD, can convert optical signals to electrical signals, then through the internal ADC circuit is converted to a digital signal, and then sent to DSP processing, convert RGB, YUV format output, etc.

(2) Lens

The lens is the soul of the camera, and a single lens in a SLR is very casual. Lens plays a very important role in imaging. It is equivalent to the lens in human eyes. By using the refraction principle of lens, the scene light passes through the lens and forms a clear image on the focusing plane.

A Lens is generally composed of several pieces of Lens, which can be divided into plastic Lens or glass Lens according to the material. The glass Lens is more expensive than the resin Lens. Plastic lens is actually a resin lens, transmittance and photosensitivity and other optical indicators are not as good as coated lens.

The lens structure usually adopted by the camera is: 1P, 2P, 1G1P, 1G2P, 2G2P, 2G3P, 4G, 5G, etc. The more lenses, the higher the cost and the better the relative imaging effect.

(3) Infrared Filter IR Filter

This is because the human eye cannot see the infrared light, but the sensor senses it. So the infrared light in the light needs to be filtered out so that the image is closer to what the human eye sees.

(4) Sensor Sensor

The sensor is the core of the camera. It is responsible for converting optical signals passing through the Lens into electrical signals, and then converting them into digital signals through the internal AD. Each pixel can only feel one of R, G, or B, so each pixel points stored Data is monochromatic light, so that we say normally 300000 pixels or 1.3 million pixels, says there are about 300000 or 1.3 million is the sensitive point, each sensitive point can only be induced a kind of light, these most primitive photographic Data we referred to as the RAW Data.