Reflective MEMS VOA is a miniature optical device based on MEMS chip packaging. The design concept comes from the traditional mechanical VOA, but the difference is that the driving device has changed from a large stepper motor to an electrostatic opening and closing bridge, electrostatic comb, tilting structure, piezoelectric drive, etc.
This article discusses Mems VOA.

Collimator Manufacturing Process

In the era of information explosion, slow network speed and unstable signal have become a nightmare for many people. Imagine that you are speaking in a video conference, and the screen suddenly freezes and the sound is intermittent. This not only affects your work efficiency, but also makes you lose face. This is the reality that many people face.