Foundations Of Geometrical Optics

Geometrical optics Design of imaging systems “Geometrical optics is either very simple, or else it is very complicated” Richard P. Feynman What’s it good for? 1. Where is the image? 2. How large is it? 3. How bright is it? 4. What is the image quality?1 “Useful when size of aperture is > 100 ”