Fraunhofer Diffraction · FT of the Aperture
unseel.com · far-field · sinc² · Airy · 1.22 λ/D
Aperture single slit
First zero sin θ = λ/a
Stage far-field setup
Plane wave / aperture
Huygens rays
Intensity I(θ) on screen
Highlight / annotation
Unseel.com · Fraunhofer Diffraction