Really effective ?
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@brakkar Reducing the blue (and a bit of green where possible) light emission, (straight out) from the monitor works extremely well. You are usually at least 18 or more inches away from a desktop monitor. After typing that I just inverted my colors.
Anyway, with the more yellow light, further away, the very minimal blue light from the edges or sharp angles will not affect sleep in a currently easy (or worthwhile) to measure way. Basically, don't worry about it.
What helps even more is inverting the colors. The only way I know how to do this is to open the magnifier in Windows 7 (It's a really great tool, and works perfectly!), and do Ctrl + Alt + I. Then this forum will have a black background with orange elements. F.lux helps a ton!
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Darkroom Mode inverts the colors too.
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@brakkar I am thinking you probably read that on a site selling physical filters! There is a lot of misinformation and confusion out there, I've seen some whoppers. A lot of the physical filters don't do anything - light that's alerting comes in a fairly wide range of bandwidths (so even filtering 100% of just 450nm wouldn't do all that much). Many of the "blue blockers" filter out less than 10% of only a narrow band of wavelengths.
All that said, it's complicated, and some things that are very dim may have blue light but won't have much of an affect on your sleep. Remember that this is all still an ongoing topic of research.
Have you checked out our https://fluxometer.com/rainbow/ project? It compares measurements of different light sources, physical filters, and f.lux settings using reference grade spectroradiometers (and incorporates some of our models of screen size and so on).
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@lorna Thanks for your answer. It certainly was on a physical filter site that I read that.
So for example, if I choose on fluxometer site macbook pro 2014 and flux setting of 4100k... the spectrogram I see is what you really measured with your spectroradiometer for that setting one real mbp ? -
@brakkar Yes, they really did! The team LOVES measuring stuff, they even had measurements (not measured by them) of PAINT colors! They took it down though, but there were quite a few.
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The paint samples were by someone else, but yeah we're a little nuts about this stuff.
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Well,
I removed my physical filter and used flux at 3700K (+ the reduced white point of my mbp screen that should have me at around 3K) and I must say it is indeed as, if not more efficient than my physical filter. I don't feel this burning sensation. When I put back 6500k I can't stare at the screen 1 minute without tears in my eyes.There are many advantages using flux:
- Physical filter was a bit to small for my screen
- Physical filter added huge glaring effect and got dirty more easily
- I could not close my mbp properly
- I can use any screen and i'll be able to have the flux effect, because there are no physical filter for all screen size, in particular that exotic square 27 inches Eizo that I contemplate buying :)
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Omg, if you have tears in your eyes, does that mean you're sleep-deprived? The only time my eyes well up with tears at bright light is when I desperately need sleep.
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@brakkar which physical filter were you using if you don't mind me asking? Some of them are quite effective, but they are deep orange.
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Hi,
I use one from Fiara. It's not deep orange, more lite yellow.
