Piezo-actuated lens adjustment
This is a lens adjustment mechanism that uses piezo actuators. This technology allows for minute and exact lens adjustments over several degrees of freedom, enabling precise control over the lens’s position, orientation, and focal length.
Hittech Bihca is responsible for assembling this high-tech subsystem, and its Managing Director, Koen Mentink, explains what makes this product special. “Next to making complex large carriers with high precision, we also make small assemblies. An example of such a small assembly is the lens adjustment in the photo that uses piezo actuators. The lens adjustment is needed to focus a measuring beam inside a semiconductor machine, which can tilt three different axes. Piezo actuators obviously can adjust with very small increments, and therefore, the assembly needs to be very accurate as well. Some assembly steps contain a process called laser welding, which must be done meticulously. The assembly also consists of several different material types, which adds to the complexity.
It is a perfect example of how we can work together with our customer by giving design input to make it possible to machine and manufacture a complex assembly in an economically viable way.”
