Optical Performance Automotive Lenses

How it works？

Optical Imaging: Like the human eye, automotive lenses focus light.

Light entering the lens is refracted and concentrated onto the image sensor to form an optical image.

Different lens types — such as wide-angle and telephoto — offer different focal lengths and fields of view to meet the requirements of various driving scenarios.

Photoelectric Conversion: The image sensor converts the focused optical image into an electrical signal.

Today's automotive cameras mainly use two types of image sensors: CCD (charge-coupled device) and CMOS (complementary metal oxide semiconductor). After amplification and analog-to-digital conversion, the electrical signal becomes a digital signal — the final image data.

Applications：

1.Forward-Facing Camera: Typically installed behind the windshield, this camera detects the road ahead — identifying traffic signs, lane markings, vehicles, and pedestrians — and provides image data for driver assistance functions such as adaptive cruise control, lane departure warning (LDW), and forward collision warning (FCW).

2.Surround View: A 360° surround view system uses multiple high-dynamic-range, high-resolution cameras positioned at the front, rear, and sides of the vehicle. The lenses capture images from all directions, and an image stitching algorithm combines them into a bird's-eye view displayed on the central control screen. This helps the driver see a complete view of the surroundings and is a key technical basis for functions such as autonomous parking and one-touch parking assistance.

3.Rearview Camera: When the vehicle reverses, the rearview camera activates. Light behind the vehicle enters through the lens, and the image is transmitted to the in-car display, usually the central control screen. Some rearview cameras also provide dynamic reversing guidelines to help the driver reverse more accurately.

4.Side View: Mounted on the side mirrors or body panels, these cameras monitor traffic on the sides and rear of the vehicle and provide blind spot monitoring (BSM) information when changing lanes or overtaking, helping prevent collisions.

5.Interior View: Includes driver status monitoring (DSM) cameras and occupant monitoring system (OMS) cameras. The DSM camera captures the driver's facial features to detect distraction or fatigue, while OMS cameras monitor the front passenger, rear occupants, and items left behind in the vehicle.