> a lens is a Fourier transformer. Of a sort. Can you expand on that? Or have so... | Hacker News

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		Micanthus on Jan 17, 2024 \| parent \| context \| favorite \| on: Fluorite lenses: Corrective capabilities beyond or... > a lens is a Fourier transformer. Of a sort. Can you expand on that? Or have some reading for that? I guess it makes sense, light is a wave and anything even vaguely to do with waves seems to end up with Fourier transforms, but still I'm curious about the details

infogulch on Jan 17, 2024 [–]

How about a practical demonstration of optical Fourier transforms?

https://www.youtube.com/watch?v=Y9FZ4igNxNA

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