Twilight 6.3 for Android

Twilight - freeware application for mobile devices based on Android, which adapts the screen of your device under times of day, filtering out the blue range on your phone or Tablet after sunset and protects your eyes soft and pleasant red filter filter intensity smoothly configured relative to the solar cycle and is based on the local time of sunset and Sunrise

Recent studies show that the perception of blue light before bedtime can disrupt your natural ( circadian ) rhythm and cause inability to sleep.

Reason in the photoreceptors of the eye, called Melanopsin. This receptor sensitive to the narrow band of blue color in the range 460 - 480 nm, which affects the production of melatonin is the hormone responsible for your healthy sleep - wake cycles.

experimental research instrument was shown to the person reading from a Smartphone or Tablet for a few hours before bedtime, causing a delay of about an hour 's sleep.

Twilight 6.3 for Android