Download Free CF.lumen APK Mirror

Download CF.lumen 3.70 (370) Latest Version APK Mirror File
App Name : CF.lumen
Package Name : eu.chainfire.lumen
Category : Tools
Developer : Chainfire
Last Version : 3.70 (370)
Update time : 2017-02-14
APK File Size : 2 M
Installs : 100,000 - 500,000 On Google Play
Requires Android : 4.0 and Up
Content Rating : Everyone
Rate : 4.4/5 (4555)

What’s New
CF.lumen driver now also works in Performance mode on various Nougat devices, and the grayscale filter has been upgraded from a toggle to saturation slider.

CF.lumen Video Trailer or Demo


The description of CF.lumen

CF.lumen adapts the colors on your Android device based on the position of the sun, or your custom configuration.

NOTE: Android 5.0 is now required. Versions up to v3.16 that support 4.4 KitKat are still available from the XDA thread (see far below). Performance drop since v3.60? Turn on performance mode.

When using the default settings, your display will get a warmer tint (lower color temperature) when the sun is down, vastly reducing strain on the eyes. Blue light makes your brain want to stay awake, and a lower color temperatures reduces the amount of blue displayed; using this in the evening reduces your brain's effort to keep you awake at night.

During sleeping hours by default a red filter is used. Red strains your eyes the least, and retains your night vision.

Light sensor

The light sensor can be used to automagically adjust the color: switch to the sleep filter in full dark, or to the day filter (usually none) under bright lights.

Because light sensor quality varies wildly between devices, a calibration option is provided to experiment with.

Color filters

Several filters are provided. Those named after a color (red, green, blue, ...) do not limit the display to those colors, but convert the displayed image to grayscale first, then display that image in levels of the selected color. This preserves details that would otherwise be lost.

Grayscale, invert colors, temperature adjustment and custom R/G/B adjustment filters are also provided.

Colorblindness

The master color filter setting also has an option for colorblindness enhancement, with settings for protanopia/anomaly, deuteranopia/anomaly and tritanopia/anomaly. These options in theory enhance clarity and color detail.

No claims are made to the effectiveness of these filters. These filters were thought up by Google engineers, CF.lumen just includes them.

Pro version

Upgrading to CF.lumen Pro will support my developments, remove all nags, unlock the option to start at device boot (make sure you test your configuration first), and unlocks notification options. It also enables Tasker integration.

In Pro mode, the notification adds convenient buttons to quickly disable the current filter or switch to sleep mode, and you can switch the notification to when enabled mode, which shows the notification only when a color filter is active.

In non-Pro mode, the notification only asks you to upgrade to Pro. It may seem that notification is just there to annoy you, but it actually prevents Android from randomly killing the background service taking care of all the work. Getting rid of it without getting the service killed can be done by going to Settings -> Apps -> CF.lumen and unticking Show notifications.

Having Chainfire3D Pro (ancient) installed will enable Pro.

Performance

When no color filter is active, there should not be any noticeable performance impact. When a filter is active, impact depends on device and what you are doing. On some devices we have tested there was no performance impact at all, on others it was slightly noticeable. It also depends on the driver in use.

Future

Keep in mind that Android's rendering system changes over time. You should be aware that this app may simply stop working on future Android versions without the possibility of a fix.

Scary permissions

By far most permissions are used only for Google Maps to set your location, and Google Play to provide for In-App Purchases. I cannot make any claims as to what information the Google components do or do not send to Google servers, but no information is sent to me or anyone else (than Google).

More

Advanced user more information, discussion, and support, can be found in this app's thread on XDA-Developers: http://forum.xda-developers.com/showthread.php?p=51779367
Show More...
CF.lumen APK Version History
  • CF.lumen 3.70 (370) APK (Latest Version)
    Version : 3.70 (Code: 370)
    Date: 2017-02-14
    Requires Android: 4.0 and Up
    File Size : 2 MB (APK file)
    File APK Md5: 679fdf7abb8d7670762b1980c5bb6148
    File APK Sha1: 9e5841be3fc5d7d0910451f08aa1ce668bc1d24c
    Signature: 4c1e2c7f9b288ecee81a193f8f917e5076a0621d
    What's new :
    CF.lumen driver now also works in Performance mode on various Nougat devices, and the grayscale filter has been upgraded from a toggle to saturation slider.
    
  • CF.lumen 3.66 (366) APK
    Version : 3.66 (Code: 366)
    Date: 2016-07-03
    Requires Android: 5.0 (Lollipop, API 21)
    File Size : 2 MB (APK file)
    File APK Md5: d3c59e78ceea8440a7bb1bf719d99fa6
    File APK Sha1: 365d48c09adec674b11a7a2795847b761d98bfe5
    Signature: 4c1e2c7f9b288ecee81a193f8f917e5076a0621d
  • CF.lumen 3.62 (362) APK
    Version : 3.62 (Code: 362)
    Date: 2016-02-18
    Requires Android: 5.0 (Lollipop, API 21)
    File Size : 1 MB (APK file)
    File APK Md5: f7ca8b705c5df4fa8cca6cffad39d9a8
    File APK Sha1: a9fdeb6341bfcb2993f53e941427de7bb3743b86
    Signature: 4c1e2c7f9b288ecee81a193f8f917e5076a0621d
  • CF.lumen 3.61 (361) APK
    Version : 3.61 (Code: 361)
    Date: 2016-02-19
    Requires Android: 5.0 (Lollipop, API 21)
    File Size : 1 MB (APK file)
    File APK Md5: 2ed1d3af36e77fc80f9e83d66b82bdd1
    File APK Sha1: 2ff2ef8a479b8744ed69a3f554255a3fa501c340
    Signature: 4c1e2c7f9b288ecee81a193f8f917e5076a0621d
  • CF.lumen 3.60 (360) APK
    Version : 3.60 (Code: 360)
    Date: 2016-02-18
    Requires Android: 5.0 (Lollipop, API 21)
    File Size : 1 MB (APK file)
    File APK Md5: 69ca0ad677c5cff9eb1c01ce484a3463
    File APK Sha1: f0e70aefd8fbae52e48468771533fdca4beeefbd
    Signature: 4c1e2c7f9b288ecee81a193f8f917e5076a0621d
  • CF.lumen 3.52 (352) APK
    Version : 3.52 (Code: 352)
    Date: 2016-02-15
    Requires Android: 5.0+ (Lollipop, API 21)
    File Size : 926 KB (APK file)
    File APK Md5: 18ed3d67a2997854ec706c31b674a44f
    File APK Sha1: 324c4525c16ee1a31b489b95d6f5927ae71bd174
    Signature: 4c1e2c7f9b288ecee81a193f8f917e5076a0621d
  • CF.lumen 3.16 (316) APK
    Version : 3.16 (Code: 316)
    Date: 2015-10-28
    Requires Android: Android 4.4 and up
    File Size : 696 KB (APK file)
    File APK Md5: 1a2f2fdd533554f553d058b502537156
    File APK Sha1: ccc9aa490c7179f9cf00dda8215a21a73ce09010
    Signature: 4c1e2c7f9b288ecee81a193f8f917e5076a0621d
    What's new :
    3.16:
    - Detect Enforcing SELinux without supolicy availability and warn user
    3.15:
    - New root driver, no longer writes to /system, also compatible with 5.1 and 6.0
    - Non-root/overlay: we are aware there are still some issues on 6.0 with this mode, such as non-responsive screen when a security dialog is shown
    
Show More Version...
Reviews for CF.lumen APK