Abstract
AbstractIn a virtual reality (VR) device, the eyebox is an importance factor that is used to characterize the performance of the VR device. The conventional eyebox measurement method is quite time consuming as measurements must be performed at multiple positions to determine the three‐dimensional range. In this paper, a new measurement method is proposed that entails investigating the trajectories of the light rays extending from a specific position of the virtual image. These light rays form an identifiable brightness distribution pattern on the diffusing plane when this plane is located near the eye position of user. The positions of the pupil that allow the user to see the positions of the virtual image can be derived from the overlap of these distributions. Additionally, the three‐dimensional range of the eyebox can be determined by changing the position of the diffusing screen. Furthermore, the proposed method allows simultaneous measurement of the eyebox of the left and right eyes. Thus, the proposed method can be used to relatively quickly determine the three‐dimensional range of the eyebox.
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