mac ソフトウェア

How to use f.lux, blue light cut software




Hello everyone. In this time I will explain how to use f.lux.

f.flux can reduce the amount of blue light as much as possible.

f.lux can adjust the blue light cut rate with the seek bar.

Please try using it.


You use Mac or Windows

I will explain it in Mac PC.

Download f.lux

Go to the blew site.

Click the center “Download f.lux” button.

Once you have downloaded the zip file, let’s double-click it and extract it.

Since The executable file is expanded in the download folder, move it to the Application folder.

It’s over.

Use f.lux

Launch “Flux” app in the Application folder with double-click.

Preference window appears.

Set up wake up time

At first set up wake upt time. By default it is “8: 00 is when I wake up”.
This is a rough guideline for switching the intensity of flux’s blue light cut in the time zone, so it does not matter.
If you don’t have enough reason, it is ok 8:00.

Set the location

Next set the “Location”.

This function is also basically to switch the rate of blue light cut in time zones.
Try to type “tokyo” and push the “Search” button.

A map comes up. As it is OK, let’s press “Confirm Location”.

With this now available, it will change the rate of blue light cut per time.

The blue part of the figure below is adapted to the “Daytime” setting, the yellow part is “Sunset” and the red is “Bedtime”.

Recommended setting

For one of idea, I have been setting up like this.

Daytime is “4500k”

Sunset is “3500k”

Bedtime is “3200k”

When the setting is decided, push “Done” button, the setting is saved and the window close.


Programer’s deterioration of eyesight is still a problem.
If you can do a blue light cut it is better to do.


If you think this article is good, share it please

-mac, ソフトウェア



Your email address will not be published. Required fields are marked *


Set up subdomain for each directory using virtual host of apache 2.4 and Mac hosts

English 日本語 Abstract Hello everybody, It’s candle. This time I will show you how to divide directories by subdomain with mac easily. For example, it is useful when such situation. If you are developing some wordpress project with apache, there are URL like the following. http://localhost:8080/workspace/alice_blog/index.html http://localhost:8080/workspace/tom_service/index.html It is the long URL. If you choose this article way, http://alice.localhost:8080/index.html http://tom.localhost:8080/index.html you can make the above URL. Premise mac apache2.4 Sample project

Build PlantUML environment on Mac using brew

Abstract Hello everybody it’s me candle. In this article, I would like to build a plantUML environment which can make UML easily on Mac. I have been used starUML for making UML. plantUML seems to be much more useful than that. Precondition You already use brew. Check java version I think that java is already installed in your mac pc. PlantUML can be run with mac default java. So you launch terminal app and check the java version with the below command. java -version Probably it can be work in java version around 1.8.x . Install graphviz graphviz is a …

Using vc to manage git on emacs25

Abstract Hello everyone it’s me candle. In this article we would like to use vc(version controll) which is included by deault in emacs. It seems that vc supports to both subversion and git, not git-specific functions. If you want to use git with emacs in earnest, I recommend magit. On the other hand, since vc is installed in by default, it is good for user who want to use it easily. Precondition You use emacs You have a basic git skill. vc-git configuration of emacs Although vc supports to git, ‘git add’ and ‘git reset HEAD’ do not exist. I …

How to install and manage fonts of mac using brew-cask-fonts

Abstract Hello everyone it’s me candle. In this article, I will show you how to install and manage fonts of mac using brew-cask-fonts. In general, font of mac is managed using an application called Font Book. It is certainly convenient, but it takes a lot of time to install. Anyway, the way of font distribution is not only Github, font is located in various places such as individual sites and DropBox. So, the procedure of introduction is often different for each fonts. On the other hand, programmers are generally lazy people by a good meaning, so fonts installation will be …

Fix emacs powerline character gets corruption(mojibake) on Mac standard terminal or iTerm2

Abstract Hello everyone it’s me candle. In this time I will show you how to fix emacs powerline character corruption(mojibake). I am referring to this site. I will explain both iterm2 and mac standard terminal. In my case I launch the Emacs with iterm2, the arrow of powerline gets garbled. Let’s fix. Precondition You use emacs Your emacs was installed powerline. You use emacs with iTerm2 or mac standard terminal.

I work in the venture company as a CTO. I start to write program in University, first I learned java, C++ and PHP. In the company, I'm developing web services by Rails. I do like to automation.