I got a 10k lumen LED flood (110W of LED! 😱) to combat winter gloom. I turned it on the first time without thinking about where I was looking and it was like opening the Ark of the Covenant. Also fun: it produces hilarious artifacts on the iPhone camera—weird grids, banding, etc
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You should know most LEDs have a cyan dip, which is right at the peak of melanopic sensitivity (the thing that matters for SAD). Was looking into some near-IR LED chips on AliExpress and the good news is cheap cyan LEDs seem to now exist.
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Oh very interesting. I wonder if cameras can sense this and generate a response curve for a given light?
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This is not possible with a regular camera unless you have a known reference reflective surface since the RGB data means you have no way of knowing which combination of wavelengths yields a particular color (metamerism). Camera might not measure brightness so that might not work.
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Maybe I can make one of those DVD spectrometers... :)
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