Abstract:

In closed work environments，personnel who spend extended periods in spaces lacking natural light are exposed to monotonous and insufficient illumination，which can easily lead to circadian rhythm disruption，low mood，reduced alertness，and impaired cognitive function. The intrinsically photosensitive retinal ganglion cells（ipRGCs） in the retina can detect environmental lighting information，generate non visual effects，and regulate the body's biological clock，mood，and cognitive state. With the development of virtual reality（VR） technology，the integration of lighting and VR creates virtual lighting environments. In such virtual lighting environments，illumination parameters can be precisely controlled to recreate lighting scenes that are consistent with real world settings and provide a strong sense of presence，delivering physiological effects similar to those of natural light. Appropriate virtual lighting can significantly improve users' emotional state，enhance alertness，and promote cognitive performance，offering a health intervention solution for personnel working in long term closed environments.This paper reviews the negative impact of enclosed environments on emotions and cognition，the pathways of non-visual effects of lighting，the overview of virtual lighting，and the application prospects of virtual lighting，providing new perspectives and inspiration for further research on the combination of lighting and virtual reality technology.

Key words: Closed environment, Lighting, Virtual lighting, Non-visual effects, Virtual reality, Emotions, Cognition, Research progress