50.2: Invited Paper: A Closer Look: Advancements in Near‐Eye Display Testing and Metrology

Abstract

This paper discusses the importance of optical testing metrology for near‐eye displays (NED) used in virtual reality (VR) and augmented reality (AR) environments. The accuracy of parameters such as resolution, contrast, field of view, and color accuracy is critical to the effectiveness of NED. However, existing testing methods for these parameters may not consider the visual characteristics of NED. The paper proposes innovative testing methods for evaluating contrast, pupil swim, and pixel per degree (PPD) in NED. The proposed ANSI contrast test method is found to be more suitable for evaluating the contrast of VR headsets than traditional methods. The paper also proposes two advanced PPD testing methods that take into account lens design and image rendering, providing a more accurate and comprehensive evaluation of pixel distribution on screens at different viewing angles. These testing methods have the potential to improve the development of high‐resolution displays and advance our understanding of the perception of visual stimuli.