Revolutionary new products addressing the challenges of circadian lightning are about to be released. and a print version of THE LIGHT DOCTOR will become available.
Are you referring to the Daylight computer company ? Believe they just released an android based tablet. Looks similar to an Ereader but apparently has a faster refresh rate
Is there anything we can do for our phones and computers ? You mentioned in an earlier article that the spectral engineering can be applied to LED screens as well. Hoping companies start to implement this technology
Yes, most smart phones, monitors and some LED TV sets offer a blue light attenuation option in the operation menu to be activated if you want to take care of your circadian or eye health.
Color tuning is different from spectral engineering. The spectrally-engineered night mode removes the critical 440-495 nm blue wavelengths and in the day mode adds them while minimizing the color change. Color tuning changes the color significantly in order to reduce the blue. Most color tuning lights are a placebo unless they have big changes in CCT (e.g. 1800K night and 6500K day)
Correct: these modes just attenuate the blue light content, which just limits circadian irritation but does not entirely eliminate it. The only ultimate solution would be to stimulate color conversion phosphor or quantum dots by near UV light that is not at all harmful such as blue light in double respect: circadian rhythm irritation as well as blue light hazard (macula degeneration) but with some minor light yield toll so that the efficiency label wouldn't look so bright in terms of "bang for your bucks". Please refer to my 2015 article weblink on top of this thread (also readable in translation mode): https://www.all-electronics.de/elektronik-entwicklung/kommt-das-gluehlampenverbot-zu-frueh.html
Could you please provide a summary of what to look for when purchasing lighting?
One “Circadian smart lighting” store lists under the specs for their light bulb “800 lumens” and that is all they say. And another company says 250 EDI. It’s a little confusing.
800 lumens is the "brightness" you would expect from an old 60 Watt incandescent light bulb, which new LED retrofit lamps can achieve with less than 10% of such power consumption at a pretty acceptable light quality of 2700K warm-white light with a Color-Rendering-Index of 90+. (No idea what this other company means by 250 EDI unless seeing the entire label)
Look out for a Kickstarter coming shortly with the technology needed for computer screens
Are you referring to the Daylight computer company ? Believe they just released an android based tablet. Looks similar to an Ereader but apparently has a faster refresh rate
only near UV stimulus can be harmless with natural spectrum conversion phosphors or quantum dots:
https://www.all-electronics.de/elektronik-entwicklung/kommt-das-gluehlampenverbot-zu-frueh.html
Is there anything we can do for our phones and computers ? You mentioned in an earlier article that the spectral engineering can be applied to LED screens as well. Hoping companies start to implement this technology
Yes, most smart phones, monitors and some LED TV sets offer a blue light attenuation option in the operation menu to be activated if you want to take care of your circadian or eye health.
I was under the impression that those modes do not actually remove blue light. I think it just changes the color tune
Color tuning is different from spectral engineering. The spectrally-engineered night mode removes the critical 440-495 nm blue wavelengths and in the day mode adds them while minimizing the color change. Color tuning changes the color significantly in order to reduce the blue. Most color tuning lights are a placebo unless they have big changes in CCT (e.g. 1800K night and 6500K day)
Correct: these modes just attenuate the blue light content, which just limits circadian irritation but does not entirely eliminate it. The only ultimate solution would be to stimulate color conversion phosphor or quantum dots by near UV light that is not at all harmful such as blue light in double respect: circadian rhythm irritation as well as blue light hazard (macula degeneration) but with some minor light yield toll so that the efficiency label wouldn't look so bright in terms of "bang for your bucks". Please refer to my 2015 article weblink on top of this thread (also readable in translation mode): https://www.all-electronics.de/elektronik-entwicklung/kommt-das-gluehlampenverbot-zu-frueh.html
.
Could you please provide a summary of what to look for when purchasing lighting?
One “Circadian smart lighting” store lists under the specs for their light bulb “800 lumens” and that is all they say. And another company says 250 EDI. It’s a little confusing.
Thanks,
Debbie
800 lumens is the "brightness" you would expect from an old 60 Watt incandescent light bulb, which new LED retrofit lamps can achieve with less than 10% of such power consumption at a pretty acceptable light quality of 2700K warm-white light with a Color-Rendering-Index of 90+. (No idea what this other company means by 250 EDI unless seeing the entire label)