Accurate display measurement within AR/VR headsets by using a complete optical
solution

The application of augmented and virtual reality (AR/VR) devices is growing rapidly in industries as diverse as gaming, military, education, transportation, and medicine. The increasing importance of AR/VR technology demands control solutions that ensure visual performance. However, achieving a quality, seamless visual experience poses a challenge for device designers and manufacturers due to the limitations of measurement systems. Measuring the display characteristics of AR/VR headsets involves evaluating various parameters to ensure they meet the required standards for clarity, accuracy, and user comfort. To help manufacturers ensure display quality, various optical solutions comprised of AR/VR and XRE lenses paired with an Imaging Photometer or Colorimeter provide unique optics engineered for measuring near-eye displays, such as those integrated into virtual, mixed, and augmented reality headsets. The innovative new geometry of the lens design simulates the size, position, and binocular field of view of the human eye. Unlike traditional lenses where the aperture is located inside the lens, the aperture of the AR/VR and XRE lens is located on the front of the lens to enable the connected imaging system to replicate the location of the human eye in an AR/VR device headset and capture the entire FOV available to the user. The optical solution can be paired with a powerful software, which would enable analysing accurately different optical characteristics namely. 1. Resolution (The number of pixels per eye). 2. Field of View (FOV: The extent of the observable environment, measured in degrees). 3. Pixel Density (Pixels Per Inch – PPI - The number of pixels per inch on the display. Calculated using the resolution and the diagonal size of the display. 4. Optical Distortion: Distortion of the image caused by the lenses. 5. Colour Accuracy: The accuracy of the colours displayed compared to the real world. 6. Brightness and Contrast- The luminance of the display, measured in nits (cd/m²). 7. Image Clarity and Sharpness - Detail and clarity of the displayed to measure Modulation Transfer Function (MTF), which quantifies the display’s ability to reproduce fine details. By systematically measuring these characteristics, the manufacturers can evaluate the performance and quality of AR/VR displays accurately. AR/VR display test solution is an unique measurement system with unique optical components that replicate the human pupil size and position within AR/VR goggles and headsets to capture a display FOV to 120° horizontal. The system offers the high resolution and efficiency AR/VR device makers require, employing a compact camera/lens solution to capture all details visible across the near-eye display in a single image to quickly evaluate the human visual experience. Therefore, by leveraging advanced optical components and replicating human vision, AR/VR headsets can achieve high standards in display measurement, ensuring immersive and realistic user experiences.