Topic 3: Operation of a Simple Lens
Aim
Thses two lectures aim to cover the single point imaging properties of a simple lens by considering Fresnel diffraction. The results are illustrated for a round single lens, and used to define the two point resolution limit. Defocus and spherical aberration are considered as pupil aberrations. The Strehl Limit is defined and used to set practical limits on the performance of optical systems.
Will Hossack