人类工效学.无障碍设计.估计任何年龄段人的最小易读字体大小的方法

[中文适用范围]： 本文件提供了一种估计单个字符（但不包括单词或句子）的最小清晰字体大小的方法，在自发光或反射模式下，用于任何年龄和任何观看方式的文档、产品标签、标志和展示观看距离、亮度和对比度变化的条件。 本文件适用于任何年龄、眼睛无病理障碍的人的单个字符的易读性设计和评估，但不适用于低视力等视力障碍的人。 本申请特别针对但不限于使用固定字体大小的印刷材料的情况。 该方法对其他语言的适用性在附录 F 中给出。 [外文原描述]： This document provides a method for estimating minimum legible font size for single characters, but not for words or sentences, in self-luminous or reflected mode, used in documents, products labels, signs, and displays for people at any age and in any viewing condition in which viewing distance, luminance and contrast are varied. This document applies designing and evaluating legibility of single characters for people at any age who have no pathological disorders in their eyes, but not for people with visual impairments such as low vision. The application is specifically directed to, but not limited to, the cases of printed materials where fixed font size is used. Applicability of the method to other languages is given in Annex F.