@LordLarsa said in Blue light damage your skin:

Thanks for your answer.

I indeed stay out of the sun and wear suncream when I go out.

I'm always working all the day in front of my computer, I literally spend my life on it. But do you think warm colors like NightLight or F.lux light eliminate the risk to affect my skin?

I did some research, and it turns out that LCD and LED monitors do not emit any harmful light for whatsoever - not for our skin OR our eyes. The only monitors that DO are the old CRT monitors (the really big bulky ones). The only thing "harmful", if you want to call it that, is the amount of blue light emitted. Blue light is alerting. It can delay or suppress or interrupt melatonin production at night. That's the only thing that's harmful about the light emitted from LCD and LED monitors. It's only harmful to your circadian rhythm.

Solved. Thank you.

From my recent observation, I have concluded my wake time in f.lux (not actual) should be based on when I want f.lux to activate... for me, that's 3 hours before bedtime.

If your bedtime is 2 am and you want f.lux to activate 2 hours before (i.e., midnight), then set your wake time at 9 am. If your bedtime is 2 am and you want f.lux to activate 3 hours before, then set your wake time at 8 am.

That said, as a fellow sufferer of insomnia, my strategy is to get my circadian clock back on track. That means ALL blue lights off 3 hours before my desired bedtime (even if I wake up at 3 am). I fear you may be unintentionally adding fuel to the fire and strongly advise against that. Google is loaded with root causes and advice on how to cure the annoyance... it goes way beyond our electronics. F.lux has been a huge help to me but I'm still struggling. Good luck!

@herf Thanks so much. I will consider that. Right now I've discovered that Windows 10 has blue-light adjustment settings, so I'm trying that instead of f.lux. But I will for sure keep these tips in mind.

No, there's not really any seasonality. Except for the fact that, with winter bringing daylight savings times and much shorter days, it's even harder to stay awake in the evenings until my desired bedtime.

Thanks again!

Any comments on meters you've liked?

I've got v2 color bulbs and a lightstrip. I thought I might as well get as close to zero melanopic light as possible at night. Any blue in the spectrum isn't helping at night. During the day the Raspberry pi program cranks it back up to white. (I'm on mac by the way, so i use flux for the screen but not for controlling the Hue lights.)

Currently I just look at the light through the cheap spectrograph and use the hue app to move around the orange color range. There's actually some surprisingly large amounts of blue in some orange looking areas, but it's hard to be precise with the simple spectrograph I have.

@herf said in f.lux and wallpaper:

You can just make your wallpaper darker all the time - it doesn't have to be a particular color as long as it's dark.

It is on our list to do something like this automatically, but we would have to figure out what images to put there - currently our download is <1MB so it would be expensive to send out 4k images in comparison. :)

What he's asking for is if you can find a way to make f.lux only affect his existing wallpaper instead of affecting Windows globally. He's not asking for you to make new wallpapers.

If you're on any of the recent versions, there is a "wake time" setting, and for this schedule we recommend that you set it about halfway through your sleep time.

So if you tell f.lux you wake at 10AM or 11AM it should do about the right thing.

We don't have any support for ChomeOS yet.

@neweye said in Blue Light Screen Blocker:

excuse me, but f. lux on my monitor philips 221el eliminate the problem blue ligh? I select 1200k...... I haven't the glasses

I think about 99.99% of the people on this planet don't need anything other than f.lux on any monitor. 1200K is more than good enough.

I would love to see an option for set to sunset settings for an hour rather than just disable. Sometimes I need something slightly less dim that really late settings, but I don't want to go all the way back to normal. I can do it manually, but it would be nice to have an easy drop down selection.

@lorna
Ok, it looks quite useful. But I don't know exactly how to make sense of the data to compare the performance of the different filters.

Specifically, when I select a filter, a button appears called "Analyze filter". If I click on that a new graph appears and there is a tab called "Compare" below the graph. Apparently this is where data on each filter can be tabulated for comparison. I've figured out how to tabulate the data for the various filters, but I don't know what the data means. Is there some instructions somewhere explaining what "CCT", "Cyanopic", "Melanopic" etc. mean. And which data is most relevant for comparing the filter performance?

Ultimately, I want to get sleep glasses and a screen filter for my iPhone which I will use in the evening in my apartment. So I want to compare the performance of the filters for these applications.

I am interested in Hue Go, but not sure if it is helpful for sleep