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It is not as famous still,there is Free software to cut Blue Light【f.lux】.
I wear glasses at home,so it is not possible to hung glasses further on it.You may not care about blue light, but you should use blue light cut tool for your health.
Free software to cut Blue Light【f.lux】
There is available for download Free software to cut Blue Light【f.lux】from「f.lux: software to make your life better」
windows,Mac, Linux , iPhone/iPad version is available.
No need to set, etc. In particular, it will do the settings automatically after you have installed. Great!
In addition, when you unpleasant to change the color of the monitor,check at thesurrounded by a red circle in the image below「Disable for one hour」.You will possible to disable the adjustment of the color of the monitor for 1 hour.