頭部装着型ディスプレイ（HMD：Head Mounted Display）を用いることで，ユーザは様々な場面で視覚情報を取得できる．しかし，たとえば歩行時には足の着地により，HMDが上下に振動し，提示される文字情報が読みづらくなるなど，HMD上の情報を取得するのが困難な場合がある．そこで，本研究では文字のデザインであるフォントに着目し，HMD上での情報提示に適した和文フォントを調査する．本研究では，歩行中のHMDの揺れを考慮したフォントの調査を行う．デザインの異なる8種類のフォントを用いて，可視性（文字の判別のしやすさ），可読性（文章の読みやすさ）の2つの観点から，それぞれ評価を行った．評価の結果，可視性の実験から，画面揺れによって縦線/横線の細いフォントは見えにくくなるため，単語を表示させる場合，縦線あるいは横線が太いフォントが好ましいことが分かった．また，可読性の実験から，画面揺れによって縦線/横線の細いフォントは読みにくくなるため，30文字程度の文章を表示させる場合，縦線あるいは横線が太いフォントが好ましいことが分かった．
By using head mounted display (HMD: Head Mounted Display), users can acquire visual information in various scenes. However, there are cases where it is difficult to acquire information on the HMD, for example, when walking, the HMD vibrates up and down due to the landing of the foot, making it difficult to read the presented character information. In this study, we focus on the font, which is a character design, and investigate the Japanese font suitable for information presentation on HMD. In this study, we investigate the font considering the swinging of HMD during walking. Using 8 kinds of fonts with different designs, evaluation was carried out from 2 viewpoints of visibility (Easy character recognition) and readability (readability of sentences), respectively. As a result of the evaluation, the font of which the vertical line and the horizontal line are thick is preferable, when the word is displayed, because the font of which the vertical line and the horizontal line are thin becomes difficult to be seen by the screen shake from the experiment of the visibility. Moreover, from the experiment of the readability, the font of which the vertical line and the horizontal line are thin becomes difficult to read by the screen shake, and the font of which the vertical line and the horizontal line are thick is preferable when the text of about 30 characters is displayed.
