finesse.utilities.homs.lens_diopt_to_f

finesse.utilities.homs.lens_diopt_to_f(f, d)

Convert a dioptre shift, at a lens, to a focal length.

Parameters

f : float

The initial focal length of the lens.

d : float, array-like

A value or array of values representing the dioptre shift.

Returns

out : float, array-like

The new value(s) of the focal length.