| Title |
Analysis of User Preference about the Color Rendering Index, Correlated Color Temperature and Illuminance of LED Lighting in Merchandising Spaces |
| Authors |
Lee, Su-Jung ; Yoon, Hea-Kyung |
| DOI |
https://doi.org/10.5659/JAIK_PD.2019.35.1.99 |
| Keywords |
Merchandising Spaces ; LED Lighting ; Color Rendering ; Brightness Perception ; Color appearance ; Pleasantness |
| Abstract |
This study aims to recommend the proper Color rendering index (CRI), the Correlated Color Temperature (CCT), and illuminance levels of Light-Emitting Diode (LED) lighting based on the analysis of the criteria of the current CRI, the CCT, and illuminance levels in merchandising spaces with LED lighting conditions. It would be a basic material to apply in line with user preference for LED merchandising lighting. To this end, it examines relevant literature review on the experiments designed to test whether lighting characteristics affect brightness perception, color appearance, and pleasantness. Highly saturated colors appear brighter than low saturated colors. Two lighting applications ? grocery and clothing shop ? were created in elaborating the effect of LED lighting characteristics of CRI on color appearance and the CCT and illuminance on pleasantness. The findings show that the criteria of CIE Ra<80 are appropriate to provide better color appearance of illuminated products in terms of LED lighting that can enhance color saturation, particularly for the red color. Furthermore, 2700 K and less than 500 lux for grocery, 4000 K and more than 500 lux for clothing shop are found to be the proper the CCT and illuminance levels respectively to bring better preference under LED lighting. |