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 P1 symbol.
How to calculate Power of Lens using this online calculator? To use this online calculator for Power of Lens, enter Focal Length 1 (f1) 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.