EFL
- pygrin.pygrin.EFL(n_0, pitch, length)[source]
Effective focal length of a grin lens.
- Parameters:
n_0 – index of refraction at center of grin lens [unitless]
pitch – pitch or period of the lens [unitless]
length – axial length of the lens [mm]
- Returns:
float – the effective focal length of the grin lens [mm]