Workspaces With Automated Scanning Stations: Minimizing Effects of Temporal Light Modulation on Human Viewers

Abstract

Temporal Light Modulation (TLM) can induce undesirable effects (flicker, stroboscopic, and phantom array effects), discomfort, headaches, and seizures in photosensitive population. We explored literature to understand impacts of TLM on human viewers, approaches for measuring their effects, and to help drive design of workstations with automated scanning stations. Findings indicate that existing standards recommend thresholds for frequency and modulation depth. We not only provide recommendations to ensure safe implementation of TLM systems but also discuss potential approaches for assessing discomfort. Future studies need to examine high frequency TLM and long-term implications to ensure comfortable workspaces.

Keywords

temporal light artifacts lighting evaluation human factors visual ergonomics discomfort assessment

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