To determine the character sizes suitable for comfortable reading, we compared the legibility of sentences and the reading speed. We used reading materials with several font sizes (from 4 to 30 point of Microsoft Mincho). In Experiment 1 participants evaluated the legibility for Japanese sentences with the questionnaire.
The legibility increased with the font size between 4 and 12 point. In Experiment 2, we extended the font size up to 30 point, and found the legibility decreased with that
between 20 and 30 point. In Experiment 3 participants read aloud Japanese sentences as fast as they could(with no errors). Reading speed in creased with the font size between 4 and 6 point, but did not increased with that between 6 and 15 point. Together with our previous findings, we conclude
that character sizes suitable for comfortable reading are approximately between 10 and 20 point (visual angle 0.46-
0.92° ).
出版者
日本官能評価学会
権利
(C)日本官能評価学会
その他のタイトル
Character legibility 2: Legibility and reading speed