Research on the visual comfort for small spaces in different illuminance environments

Abstract

This paper conducted an ergonomic experiment based on the visual comfort of users by simulating 5 external illuminance environments of night, kitchen, living room, common supermarket and high-end market. It studied the comfortable and acceptable illuminance levels for three doors refrigerator with ceiling lamps separately in the case of vacancy and filling with items. The experiment involved 40 subjects. Results showed that with ceiling lamps, there was no significant difference between the two status of vacancy and filling with items; however, they was different in 5 different external lighting environments. Based on the experimental data, this paper established a regression mathematical model in order to illustrate the relationship between the external lighting envi- ronments and the internal comfortable illuminance levels for the three doors refrigerators. The result will provide the reference for the optimization data for the lighting design of three doors refrigerators.