Beautiful Lens Maker Equation Calculator

The Lens Makers Formula is an expression used to find the focal length of a lens for which the refractive index as well as the radii of curvature are known.

Lens maker equation calculator. Note - we are using the real is positive sign convention here. The calculator also determines the lens power and magnification. Curvature Radius of the First Surface in meter r 2.

R1 -Radius of Curvature of the First Surface. 13 from Schroeder 1987. The above figure is Figure 25 p.

Focal Length in meter n l. Refractive Index of Lens Material in meter n m. Focal length is measured from the center of the lens.

Curvature Radius of the Second Surface in meter This equation holds for all types of thin lenses. R2 - Radius of Curvature of the Second Surface. We will discuss the form of the equation that is applicable only to thin lensesThis formula is only applicable to a lens.

The focal length of a lens depends on the refractive index of the lens and the radii of curvature. Lens manufacturers use the lens makers formula to manufacture lenses of the desired focal length. This lensmakers equation calculator determines the focal length of a thin lens in air and if this lens is converging or diverging based on the known curvature of its surfaces and the refractive index of the lens material.

Let us consider a thin lens made up of a medium of refractive index. Applying the equation of paraxial refraction with air to each surface gives. Vis the distance of the image from the lens and fis the focal length ie the distance of the focus from the lens.