Lens Focal Length Calculator

A branch of physics, a science that studies the motion of material bodies and the interaction between them, while motion in mechanics is the change in time of the relative position of bodies or their parts in space.

Optical power is a value that characterizes the refractive power of axisymmetric lenses and centered optical systems from such lenses. Measured in diopters (designation: diopters): 1 diopters = 1 m − 1.