Car camera lens is an important component of ADAS sensors, and the overall market is growing rapidly. When it comes to vehicle-mounted cameras, people's focus may be more on the current industry chain, such as the shortage of CMOS sensors and chip semiconductors. This article will introduce the hard requirements for "vehicle-grade" vehicle-mounted camera products of front-loading manufacturers.
In general, "vehicle-grade" is a synonym for quality, meaning strict product performance. This is because in various product applications, automotive products will encounter various extreme environments, such as the ultra-high temperature generated by sunlight in summer and the ultra-low temperature of tens of degrees below zero in northern winter, as well as the damage caused by rainy days and high-pressure car washing.
In addition, automotive safety involves the life safety of drivers and passengers. Therefore, "vehicle-grade" ensures that products can be used normally in these extreme environments.
For car camera lens products, their basic vehicle-grade requirements generally include the following seven aspects:
Temperature resistance: It needs to work normally within the range of -40℃~85℃, and can adapt to the dramatic changes in temperature;
Shock resistance: Vehicles will generate strong vibrations when driving on uneven roads, so they must be able to withstand various intensities of vibration;
Anti-magnetic: When the vehicle starts, it will generate extremely high electromagnetic pulses, requiring high anti-magnetic performance;
Waterproof: Car camera lenses must be tightly sealed, and can still be used normally after soaking in rainwater for several days;
Service life: The service life must be at least 8-10 years to meet the requirements;
High dynamic range: The fast-moving vehicle, the light environment facing the car camera lens changes dramatically and frequently, requiring the CMOS of the camera to have high dynamic range characteristics;
Low noise: It can effectively suppress noise in dark light conditions, and it is especially required that side and rear-view cameras can capture clear images even at night.
These are just rough requirements. There will be more detailed requirements for different application environments. For example, panoramic cameras require super wide angles, at least 135°. It is reported that 210° have also been applied.
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