一般色覚者を対象とした円形視標の見やすさ評価に関する検討： カラ一ュニバーサルデザインのための測光色コントラスト評価図を用いた視認性推定法に開する研究(その1)

摘要

Authors have argued that C-A graphs can estimate visibility using luminance images. In this study, a method of handling luminous color was suggested and visibility evaluation experiments using circular objects, varying luminance and chromaticity were conducted for the common color vision type. When the background chromaticity was D65 and the luminance contrast (LC) was zero, visibilities of circular objects with greenish yellow to violet color decreased because of small-field tritanopia. As the object size was increased, visibilities improved while its trend was still observed. Specific chromaticities were difficult to be detected even if LC exceeds its visibility threshold values.%視環境設計において，視認性の確保は安全性や作業性の向上のため第一に必要とされる.公共空間等では，晴眼者だけでなく弱視者や高齢者，色弱者も想定した上で，サインや障害物の視認性が確保されなければならない.