Stops, Pupils, and Windows - an Illustration

This video is snipped, and edited for brevity, from the lecture on stops, pupils, and windows from my Geometrical and Physical Optics course at UC Irvine Division of Continuing Education (EECS X496.55). If you are in need of thoroughly learning the subject of optics, you can take this fully on-line course. https://ce.uci.edu/programs/engineeri... I'm using the notation found in Pedrotti. EnW =Entrance Window, ExW =Exit window, EnP =Entrance Pupil, ExP =Exit Pupil. Also FFOV =Full Field of View (as opposed to half field of view, HFOV) EPD =Entrance Pupil Diameter NA =Numerical Aperture f =focal length A/S =Aperture Stop F/S =Field Stop I tried to get this down to 5 minutes. Now, before anyone leaves me an angry-gram for not giving a rigorous explanation of how to identify the aperture stop, that was covered in detail here:    • A Review of Geometrical Optics at the Thir...   In lieu of posting these optics lessons with a user-paid service, a simple like (translate "Thank You") will be appreciated. This channel is not monetized. #optics