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Weeklong improved colour contrasts sensitivity after single 670 nm exposures associated with enhanced mitochondrial function | Nature (www.nature.com)

submitted 4 months ago by [email protected] to c/[email protected]

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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.

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[–] [email protected] 2 points 4 months ago* (last edited 4 months ago)

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.