Research on the method for quantifying human luminance difference threshold

Abstract

  There are individual differences in brightness perception; while some people do not feel glare even at the same luminance, others do. Extreme reactions to light stimuli can lead to visual perception disorders such as Irlen Syndrome. In this study, we conducted a correlation study betweenluminance difference threshold and brightness assessment in individuals in the mesopic range. The luminance difference thresholds were measured, and 30 subjects were surveyed on how they perceive brightness in their daily lives. As a result, we were able to confirm a certain correlation trend between the characteristics of luminance difference thresholds and the responses to the questionnaire regarding the sense of brightness.