Thread: Mini DIY Frontlight?
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Old 10-24-2015, 01:21 AM   #20
meeera
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Quote:
Originally Posted by idoit View Post
What color for LED? I read an article claiming that even frontlights on today's eReader worsens sleeping cycles in some people, not sure if it's yet another scientific garbage or truth!?
I personally prefer a warmer white. However, the research, unless there is something new I haven't seen yet, was done with people reading on iPads on full brightness (!!) in a dimly lit room for two hours, causing a small delay in sleep onset (around eleven minutes, from memory). A lot of ignorant journalists turned that into "Your Kindle is bad for you".

Place a frontlit ereader on a sensible setting next to a ten inch tablet on full brightness, and you can see that the dose of blue light is much, much less with the ereader.
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