Lecture
This lecture covers the five types of 3rd order monochromatic aberrations, the approximation of spherical surfaces by paraboloidal surfaces, and the dispersion of light. It explains the origins of monochromatic aberrations and the differences between chromatic and monochromatic aberrations. The lecture delves into optical aberrations, including spherical aberration, coma, and astigmatism, and provides strategies to minimize them. It also discusses the impact of chromatic aberration and how it can be reduced using achromatic doublets. Additionally, the lecture explores the photometric system, colorimetry, and the concept of optical extent in optical systems.