Optotune introduces manually tunable lens

The ML-20-37 manually tunable lens is designed to have its lens curvature change between convex, flat, and concave.

March 19, 2019

The ML-20-37 manually tunable lens is designed to have its lens curvature change between convex (+18 dpt), flat (0 dpt), and concave (-18 dpt) through rotation of the outer adjustment ring. This allows for the focal length of the lens to be tuned to the precise value required for an optical application.