Summary
Full Transcript
This explainer video, intended for any student of optics, is aimed straight at the conceptual roadblocks. Étendue is the geometrical extent of light. It's the link between the brightness of a remote light source, and the power received at the detector. Light got from the source to the receiver through some sort of geometry: étendue. Besides illumination optics, imaging optics considers étendue too. So, I include some imaging-systems-oriented examples. This video hits on a couple of conceptual hurdles besides étendue. For example, projected solid angle is responsible for inducing a rattled mental state in probably everyone. Hope this helps. If you are interested in optical engineering, the five-course program that I teach in is a very affordable, rigorous online academic program that leads to a certificate in optical engineering from the University of California Irvine, Division of Continuing Education. https://ce.uci.edu/programs/engineering/optical-engineering In lieu of asking you to pay tuition for the optics lessons on this channel, a simple like (translate "Thank You") will do. This channel is not monetized. But if my gibberish didn't do it for you, here are some great videos about étendue: https://www.ti.com/video/6091835334001 https://www.optica.org/events/webinar/2019/what_is_etendue_and_why_is_it_important/ https://www.youtube.com/watch?v=aGCwzUPxE-Q #étendue #radiometry #optics
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