Abstract
Modern head mounted displays are high performance wearable computers. However, the effect of headset temperature on user thermal discomfort is rarely discussed. Here, user ratings of thermal discomfort during a VR game across three different thermal conditions between 28° – 43° C was measured. Perceived thermal discomfort ratings, administered every 12-minutes, decreased over time and as the HMD microclimate tem-perature (MCT) increased. Additionally, thermal discomfort increased more quickly for MCTs above 38° C. The HIGH temperature condition (MCT > 38° C) was rated uncomfortable after 24-mintues. Post- – pre-VR forehead temperatures in both the MID and HIGH conditions were significantly higher than in the LOW condition. The current findings suggest users perceive MCT temperatures above 38° C as uncomfortable. To maximize thermal comfort for extended use manufacturers of VR headsets should limit MCT to < 38° C.
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