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In this video I go through an Excel YNU Spreadsheet which is used to compute several paraxial ray quantities, including effective focal length and spherical aberration, of a Cooke triplet lens. Since making this video, I started working aperture stops explicitly into my YNU spreadsheets. Kinda messy! You can see it done here: https://youtu.be/0pZrTrzAvqY Please consider clicking on "Like" so that I know what sort of content is being appreciated. I don't ask for support for developing this content, just the satisfaction of knowing that it is appreciated. I make a lot of videos showing spreadsheets and MatLab code that are useful for optical design. The purpose is to help people who wish to make their own spreadsheets, or to write their own code. Please don't ask me to post my own files. Write your own. That's the idea. Reference: Joseph M. Geary, Introduction to Lens Design, with Practical ZEMAX Examples, Chapter 4 (Willmann-Bell, Inc, 2002). Optical Design Playlist: https://www.youtube.com/playlist?list=PLmfHzApbF5dbx_S_h9A13uLm4LVK0f6XK #LensDesign #YNUspreadsheet #opticaldesign #CameraLens
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