Analysis of glasses wearing comfortability based on 3D head shape features

Abstract

It is hard to find comfortable glasses for young people in China, due to the facts that Chinese glasses deign industry lacks the 3D head shape data of youngsters, and the glasses are of monosize and designed following the Europe and America styles. Considering this situation, this paper analyzes the 3D head shape based on glasses wearing comfortability (GWC). Through comparing the 3D head shape of young Cantonese in China with the worldwide average people KEMAR, it is shown that the GWC can be improved by considering some head shape features when designing glasses. Firstly, some effect factors of WC are proposed by interviewing 136 youths who have worn glasses for a long time. Then, the head areas which interact with glasses are found by analyzing glasses construction parameters. Finally, by comparing head shape features of 62 Cantonese and KEMAR, it shows that a big difference exists in the temples contour. Therefore, it is concluded that the GWC can be improved with consideration of the bend point long, the external angle and the profile shape of glasses temples based on the dimensions of the wearers.