What is Optical Focus?
In geometrical optics, a focus, also called an image point, is the point where light rays originating from a point on the object converge. A principal focus or focal point is a special focus: For a lens, or a spherical or parabolic mirror, it is a point onto which collated light parallel to the axis is focused.
How to Calculate Focal Length of Convex Lens given Object and Image Distance?
Focal Length of Convex Lens given Object and Image Distance calculator uses Focal Length of Convex Lens = (Object Distance*Image Distance)/(Object Distance-Image Distance) to calculate the Focal Length of Convex Lens, Focal length of Convex Lens given Object and Image Distance is the distance of Focus from the pole of the lens. It is denoted by f and the SI Unit of focal length is meter. Focal Length of Convex Lens is denoted by Fconvex lens symbol.
How to calculate Focal Length of Convex Lens given Object and Image Distance using this online calculator? To use this online calculator for Focal Length of Convex Lens given Object and Image Distance, enter Object Distance (u) & Image Distance (v) and hit the calculate button. Here is how the Focal Length of Convex Lens given Object and Image Distance calculation can be explained with given input values -> 0.385714 = (0.9*0.27)/(0.9-0.27).