Categories

• f.lux support
  

  Need help with f.lux? Post here

  Windows macOS iOS Linux Android Windows beta

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  E

  Hey guys.
  Flux beta is great.
  Here's my request: I'd love to be able to disable flux or re-enable it with fewer clicks.
  The menu from the windows taskbar could have a functional "Disable / Reenable" checkbox.
  It already looks like a checkbox when it's disabled, but it's not an interactive component.

  The way I see it, we could disable and reenable f.lux functionality quicker if we wanted to.

  Cheers!

• f.luxometer
  

  Measuring devices and lights

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  W

  don't know if anyone is still following, but I think I nailed it, at least for the image I'm working on now. this is for the 1900k (candle) setting:

  followed what @nightlight said using curves, with blues at about 45%, greens starting normal for the first quadrant then halving in angle to form almost a straight line ending at 50%, reds stay untouched

  the final step, add ~15 color saturation

  all of this is obviously to taste but worked good enough to pretty much fool me (and recapture the look I'd accidentally created by leaving flux on while working late)

  the greens were the only touchy part really, here's a picture of the final graph:

• Sleep and Light
  

  A discussion about sleep, light, wellness, circadian clocks

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  Lorna encouraged me to post this.

  If you want to block 100% of the light coming in through your windows (and maybe also some of the sun's heat), then I sincerely recommend this:

  https://blackoutez.com/

  I bought the ReflectSun EZ window covers because I want all the help I could get blocking some of the sun's heat too: https://blackoutez.com/Blackout-EZ-RV-Window-Covers/Blackout-EZ-RV-Window-Cover

  My windows face directly south and don't get any shade. So I can tell you that as far as light-blocking goes, these really do block absolutely 100% of the light. Even during the brightest part of a clear sunny day, it's absolutely pitch-black in here with my lights off.

  I can't really review the heat-blocking performance yet (I think I'll have to wait a couple of months for that), but the side that faces toward the sun is Mylar which is the same stuff used for thermal blankets.

  So yeah, if you have any windows that you want to black out for any reason, then this is what you're looking for!

  (Note: title was edited to clarify subject - there are no affiliate links here (they're not allowed), @TwoCables really liked these window covers. Posted with our blessing. ~lorna)

• Smart Lighting
  

  Chat about circadian lighting

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  K

  Hello,

  I'm here after listening to a podcast of Dr. Jack Kruse and I have contacted him with the following question:

  Hello,

  I have a question for you because I find it important that we have the information how to use our computer screen throughout the day? We can not al the time go outside in the sun when it is raining or when it is cloudy, freezing, ect...

  I follow you on podcasts but I get no real clear answer how to do this with our computer screens. I have here 3 full spectrum lights and I find this good to sit in it after waking up and when I'm on the pc throughout the day. You have glasses on in front of the screen but is this also necessary around 11h-16h when the sun is bright outside? So why is this a bad thing if we have out screens that emit blue light when outside it is the same? I thought that we need to adjust our screens throughout the day to mimic the light outside. Let say around 08.00h we set the screen to 2700K and around 11h 3500K and around 12-14h we have 5500K and we go down again after 14-16h. I think that this is good thing to do and why not make a program that automatic mimics this throughout the day, so we do not need to do this manual? Here is money to be made with such a program if this is a good idea and that I would ask Jack how he thinks about this and maybe his know someone that can made such a program. It would be better than f.lux or Iris because they do not do this throughout the day automatic. They only do this with day or night but not throughout the day.

  So my question in short is:
  what is now the best Kelvin setting for the computer throughout the day? Or are there several setting to be made from 08.00-16h?

  And his answer was:

  Your question is a problem. The human retina is not built to sustain this type of damage. Therefore when using a computer you should use glasses that block 400-500 nm light. Take breaks and go outside and allow the retina to get a mix of UV-A and IR- A to rebuild the retina you are destroying with the unopposed blue light.

  Does he have a point here that we can restore the eye by getting more in the sun and sitting too long for a screen is not good by the day, even though we use f.lux? And is a program like f-lux not ideal to block those 400-500nm? And how much Kelvin is actually ideal for watching throughout the day before the screen?

  So in short what is the best setting throughout the day?

  Sources:

  https://www.facebook.com/drjackkruse/
  http://www.ledsmagazine.com/articles/print/volume-12/issue-4/features/q-a/questions-abound-about-whether-a-blue-light-hazard-exists.html
  https://www.ncbi.nlm.nih.gov/pubmed/22364266
  https://www.ncbi.nlm.nih.gov/pubmed/22989198
  https://www.ncbi.nlm.nih.gov/pubmed/23898883