Improved Therapy Light that Invokes the Memory of Daylight

Modern work and living environments have prevented access to necessary daylight, which unfortunately leads to a disordered circadian rhythm, and eventually, depression. Therapy light that provides simulated daylight has been established as an alternative. However, such light often emits constant illumination, thereby appearing artificial rather than natural. This study presents a prototype therapy light that incorporates animated window scenes in an effort to invoke perceptual realism in addition to the physically simulated illumination of daylight.