24 Mar 2022 The XRE Lens has a unique optical design specifically engineered for measuring near-eye displays, such as those integrated into virtual (VR), mixed (MR), and augmented reality (AR) headsets. The lens design simulates the size, position, and field of view of the human eye to measure displays as seen by the user—and offers additional advantages including electronic focus control, folded and non-folded configurations, and dual-eye measurement.
• Replicates human eye in XR headsets
• Electronic focus with software control
• Folded ("periscope") or non-folded configuration
• Field of view up to ±35° (70° total)
The XRE Lens is designed with a virtual aperture in front of the lens, enabling the system’s optical entrance pupil to be located at the same position as the user’s eye in the headset. From this near-eye position, the connected imaging system can capture a 70° display field of view (FOV) as seen by the user, without obstruction by the headset hardware. All aspects of the display visible to the user are comprehensively measured to ensure the intended experience. Having no hardware, the virtual aperture of the XRE Lens solution also eliminates concerns about mechanical restrictions when positioning the entrance pupil in the headset.
The XRE Lens’s electronic focus capability eliminates these issues to provide optimal measurement efficiency. Precise focal distances can be set in the software to instantly focus the lens to specific virtual distances (0.5 m to infinity). The XRE Lens system can be adjusted without manual intervention or repositioning, enabling fully automated inspection with focus settings controlled via software. | 
