Camera Module

Sensor structure:

A lens collects light of a particular color, and a color filter filters light of other colors, projecting one color onto the area

Connection mode of Sensor and substrate:

COB: Module takes the sensor die and connects the sensor to the substrate through the gold wire.

CSP/TSF: Sensor is connected to the substrate and packaged when shipped.

IR Cut and Blue Galss:

The function of IR Cut is to filter out the light frequency invisible to human eyes (reflected back). What human eyes can see is 400~700nm.

Blue Glass absorbs infrared rays, which are not easy to be reflected internally

The Image circle of the Lens needs to cover the sensor's sensitive area

Lens shading:

A condition in which light is unevenly distributed, such as when the center is lit and the outside is dimmed. This is mainly because most of the light is concentrated in the middle, and because different wavelengths of light are imprinted in different places

FOV:

The lens Angle of the module must be the same as that of the lens; otherwise, when the lens Angle is too large, dark Angle may appear.