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Weeklong improved colour contrasts sensitivity after single 670 nm exposures associated with enhanced mitochondrial function | Nature

Now I have a use for my Sofirn C01R and that H25LR headlamp with 670nm LED's. Cool. 3 minute exposure to 670nm light in the morning apparently improves color perception for the rest of the week. I'll read more closely to find the right intensity and so on.

https://www.nature.com/articles/s41598-021-02311-1Open linkView original on lemmy.world

I think mW/m^2 at 1 meter per mW should be very close to cd/lm (lm/m^2 at 1 meter per lm) for a white SST20 in the same optic. Output for an SST20-DR is a bit more than 1mW/mA drive current.

A Convoy S2+/SST20-DR on high should deliver about 30000 mW/m^2 from a distance of 1 meter on high, based on its reflector delivering about 10 cd/lm with a white SST20. Divided by 10000 cm^2 / m^2, we get 3 mW/cm^2. Half a meter would get you 12, which is a little more than the 8 used in the study.

The C01R, you'd probably have to stick in your eye. Please note this comment is not medical advice. Somebody check my guesses and math here, please.

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Weeklong improved colour contrasts sensitivity after single 670 nm exposures associated with enhanced mitochondrial function | Nature | Spyke