The MEMS autofocus (AF) actuator is a piezoelectric multi-morphic thin film actuator, and it can move at Z and tip-tilt directions to achieve the 3 axis compensation. The MEMS devices are designed to be based on standard Silicon fabrication processes and hence have good scalability and ease of handling, testing and packaging relatively.


There are multiple advantages of this sensor-based technology. It provides 3-axis image adjustments (Z, tip and tilt) compared to 1-axis counterpart on lens-based AF systems. It also moves 3 times faster and 10 times more precisely by detecting vibrations of less than a pixel compared to 3-5 micrometers on lens-based AF. And finally, by not using a motor to move the lens around, it consumes up to 50 times less power and avoids heating problems that could affect the image's quality.


In automotive applications, continuous vibrations during driving can result in blurry images, and environmental factors such as temperature and humidity can deform cameras, further degrading video quality. MEMS AF technology addresses this issue by providing an auto-focus (AF) solution that enhances image clarity and stability, meeting the rigorous quality standards required for automotive safety in Advanced Driver Assistance Systems (ADAS).


MEMS piezo autofocus technology is also transforming mobile phone and AR/VR camera systems. MEMS technology enhances the performance by providing quick and precise adjustments to the camera modules. This ensures precise focus and maximum visual clarity, significantly improving the overall user experience. The reduced power consumption of MEMS actuators also mitigates heating issues, enhancing device performance and longevity.