Blue light page

From this page, you can customize the amount of blue light emitted from your screen.

Basically lower values and less blue light means better sleep and less eye strain.

The Day and Night Light sliders may seem to have strange values, but the lower the value the less blue light. These values will correspond to the color temperature values of the screen.

K or Kelvins and is the default measure for color temperature.

Light of 100% is no color changes and calibrated display.

Day TemperatureΒ is the temperature of the display during the day.

Night TemperatureΒ is the temperature of the display during the night.

Iris determines if it’s day or night based on your location or on your system clock. Then it does gradual interpolation between the 2 values when the time is right.

You can change the default location from the Location page.

Extended valuesΒ will allow you to select values over 6500 K.

Some people use this as some kind of caffeine mode when they don’t want to fall asleep at night. Values over 6500 K have over the maximum blue light so be careful. These values will not help you fall asleep faster.

  • This is how Iris looks at 100% (No blue light reduction)
  • At 0% (Maximum blue light reduction)
  • And at 150% (Over the maximum blue light)

I don’t use 10 000K, because my head starts to hurt, but some people use it when they want to put all-nighters.

When Manual Light is set to ON, Night Temperature will be used both during the day and during the night. This way it’s easier to change the temperature fast by hand.

If Keyboard shortcuts are enabled you can use also use

Ctrl+Alt+↑ to increase the Night Temperature and

Ctrl+Alt+↓ to decrease the Night Temperature

This is Up and Down arrow found next to the left to the Enter and right Ctrl key and left to the Num pad. The step is 500 K and the temperature can be set from 0 K to 6500 K. For other values use the sliders.

Reset temperatureΒ does something which you may think it’s strange, but it’s useful in some situations. Basically, if you killed Iris somehow your screen may be red without Iris running. Reset temperature will fix this, but will also remove your display calibration.

Invert colors will invert the colors like this

9 thoughts on “Blue light page

  1. Pingback: Is Iris as good as physical Blue blocking filters? - πŸ’‘πŸ‘¨β€πŸ’» Iris - Software for Eye protection, Health and Productivity πŸ›ŒπŸ‘€
  2. Does Iris app address flicker? I have the paid version and wasn’t sure if it addresses flicker or blue light.

    John S

    1. Hi Kathleen,
      Turn your built-in monitor brightness to the maximum and then adjust from Iris

  3. I’m trying to change the level of blue light and brightness (currently at night) and when I change the sliders I get a preview but it doesn’t ‘stick’. I mean, it looks alright but it’s too warm for my liking at the moment. Doesn’t this defeat the purpose of having customizable settings in the first place? What am I doing wrong, as I’d like to have more control over both brightness and blue light during both night and day with manual turned off. I don’t really want to have to switch between manual and auto, whole thing is a bit confusing tbh. I bought 2 copies of Iris Pro (1 year no updates) so am an existing customer. Thanks.

    1. Hi Matt,
      The whole idea of automatic is that it is indeed automatic which is why it doesn’t let you change the sliders when manual is turned off
      If you want your own settings you need to turn on Manual, because if you switch back to automatic the program will adjust your settings according to the time of day and location

      1. Ok. I wrongly assumed that auto related to time duration settings only. Being that the blue light level is too warm for my liking (whilst on auto) I’ll use manual.

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