How does it work ?

We have embedded a piezo, playing the role of an actuator, on a thin glass membrane. Underneath is positioned some polymer on a glass support. At “zero” volt, the piezo is in standby mode and does not apply any force to the thin glass.  The light going through the two elements of glass and through the polymer is not deviated.

Once we apply a voltage (up to 30V), you can see that the piezo actuator immediately forces the thin glass membrane to bend. This generates an optical power variation allowing focusing.

Working principle of poLight TLens.