How to Calculate Power of Lens?
Power of Lens calculator uses Power of First Lens = 1/Focal Length 1 to calculate the Power of First Lens, Power of Lens is the reciprocal of the focal length of the lens , where D is the power in diopters and f is the focal length in meters. Lens surface power can be found with the index of refraction and radius of curvature. Power of First Lens is denoted by P_{1} symbol.
How to calculate Power of Lens using this online calculator? To use this online calculator for Power of Lens, enter Focal Length 1 (f_{1}) and hit the calculate button. Here is how the Power of Lens calculation can be explained with given input values -> 2.5 = 1/0.4.