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Calculate the radius of curvature and thickness of a lens from its focal length and refractive index

Author: kegasaExecutions: 15
TOP/Shared Formulas (Science)/Physics (Sound & Light)

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Given a lens with a diameter D, a refractive index N, and a focal length f, where the radii of curvature R on both surfaces are equal,
determine the radius of curvature R and the central thickness t for a convex lens, or the radius of curvature R and the peripheral thickness for a concave lens.
R = f*(2*(N-1));
t = 2*R*(1-cos(atan(D/2/R)));
print(R);
print(t);
Focal length f
mm
Refractive Index N
Lens diameter D
mm
Radius of curvature R of the lens mm
Lens thickness t mm

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