University of Massachusetts Medical School mail
OSHWA UIDUS002094 Project Website
April 01, 2022
United States of America
Focus stabilization device for microscopes. pgFocus monitors focus changes through the positional changes of a reflected laser beam. A significant feature of pgFocus is it acts as a “man-in-the-middle.” It is designed to pass through faster high fidelity signals meant for a piezo Z controller while adding a slower focus control signal. This happens in the analog realm, which avoids sampling artifacts introduced by digitizing the original signal.