Twilight: Blue light filter For PC – Windows 11/10/8/7 & Mac – Free Download

Twilight: Blue light filter for PC is now available! Whether you are using a Windows 11/10/8/7 or Mac. Be it a 32bit or 64bit, you will be able to use the Twilight: Blue light filter on your computer or laptop. To download this app, read the following details in this article.

How To Download Twilight: Blue light filter for PC & Mac?

In order to download the Twilight: Blue light filter on PC, you’ll need a reliable and strong emulator. The most popular emulator that you can use is BlueStacks, Nox Player, LD Player, or MEmu. All of these emulators are capable of running the Twilight: Blue light filter on Windows 11, 10, 8, 7 as well as Mac. Follow the steps below to install it.

  • Download the latest emulator for your Windows PC or Mac. Keep in mind that you should only download the installer from the official site.
  • In our opinion, the best emulators are BlueStacks, Nox Player, LD Player, or MEmu.
  • After the installation, run the emulator that you installed and then log in to your Google account to continue.
  • Use the search bar to find the Twilight: Blue light filter on Google Play Store.
  • Click the install button and wait for it.
  • Congratulations, you have completed the installation of Twilight: Blue light filter
  • Enjoy!
App Name Twilight: Blue light filter
Developer Urbandroid (Petr Nálevka)
App Rating 4.6
Update September 16, 2021
Version 12.11
Requirement 4.1 and up

Screenshots

Twilight: Blue light filter for pc screenshots 1 Twilight: Blue light filter for pc screenshots 2 Twilight: Blue light filter for pc screenshots 3

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FAQs About Twilight: Blue light filter, Guide, and Its Features

Are you having trouble falling asleep? Are your kids hyperactive when playing with the tablet before bed time?
Are you using your smart phone or tablet in the late evening? Twilight may be a solution for you!

Recent research suggests that exposure to blue light before sleep may distort your natural (circadian) rhythm and cause inability to fall asleep.

The cause is the photoreceptor in your eyes, called Melanopsin. This receptor is sensitive to a narrow band of blue light in the 460-480nm range which may suppress Melatonin production – a hormone responsible for your healthy sleep-wake cycles.

In experimental scientific studies it has been shown an average person reading on a tablet or smart phone for a couple of hours before bed time may find their sleep delayed by about an hour. See references below..

The Twilight app makes your device screen adapt to the time of the day. It filters the flux of blue light emitted by your phone or tablet after sunset and protects your eyes with a soft and pleasant red filter. The filter intensity is smoothly adjusted to the sun cycle based on your local sunset and sunrise times.

Documentation
http://twilight.urbandroid.org/doc/

Get more from Twilight
1) Bed reading: Twilight is more pleasant on the eyes for night reading. Especially as it is able to lower the screen backlight far below the ability of the backligt controls on your screen

2) AMOLED screens: We have tested Twilight on an AMOLED screen for 5 years without any sign of depletion or over-burning. If properly configured Twilight causes less light emission (by enabling dimming) with more equal light distribution (dark areas of the screen such as the status bar get tinted). This may in fact increase your AMOLED screen life time.

Basics on circadian rhythm and the role of melatonin
http://en.wikipedia.org/wiki/Melatonin
http://en.wikipedia.org/wiki/Melanopsin
http://en.wikipedia.org/wiki/Circadian_rhythms
http://en.wikipedia.org/wiki/Circadian_rhythm_disorder

Permissions
– location – to find out your current sunset/surise times
– running apps – to stop Twilight in selected apps
– write settings – to set back-light
– network – access smartlight (Philips HUE) to shield you household light from blue

Automation (Tasker or other)
https://sites.google.com/site/twilight4android/automation

Related scientific research

Amplitude Reduction and Phase Shifts of Melatonin, Cortisol and Other Circadian Rhythms after a Gradual Advance of Sleep and Light Exposure in Humans Derk-Jan Dijk, & Co 2012

Exposure to Room Light before Bedtime Suppresses Melatonin Onset and Shortens Melatonin Duration in Humans Joshua J. Gooley, Kyle Chamberlain, Kurt A. Smith & Co, 2011

Effect of Light on Human Circadian Physiology Jeanne F. Duffy, Charles A. Czeisler 2009

Efficacy of a single sequence of intermittent bright light pulses for delaying circadian phase in humans Claude Gronfier, Kenneth P. Wright, & Co 2009

Intrinsic period and light intensity determine the phase relationship between melatonin and sleep in humans Kenneth P. Wright, Claude Gronfier & Co 2009

The Impact of Sleep Timing and Bright Light Exposure on Attentional Impairment during Night Work Nayantara Santhi & Co 2008

Short-Wavelength Light Sensitivity of Circadian, Pupillary, and Visual Awareness in Humans Lacking an Outer Retina Farhan H. Zaidi & Co, 2007

High sensitivity of the human circadian melatonin rhythm to resetting by short wavelength light. Lockley SW & Co. 2003

Sensitivity of the human circadian pacemaker to nocturnal light: Jamie M Zeitzer, Derk-Jan Dijk & Co 2000
– Fix for pausing times larger than 1 minute
– Several warnings and guidance on recent Play Store secured buttons

 

Disclaimer

The Twilight: Blue light filter is the property of its developer/inc. The contents on this website are coming from Google Play. We are not an affiliate partner with the developers. All of its images, trademarks, company name, product name, and logo are the property of its respective owners.

All of the apps here are not hosted on our server. If the visitor clicks the “Download” button, the file will be downloaded directly from its official website.

Ryan MacWha

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