Eye tracking is performed in augmented reality, virtual reality, or extended reality (AR/VR/XR) applications to determine the gaze direction of the user. However, eye tracking based on a captured image of the eye can be inaccurate when the image contains saturated pixels due to high reflection from the user’s eye. This disclosure describes techniques to generate multi-polarized images (images with different polarization angles) simultaneously. A metalens is provided in the imaging apparatus to generate multiple images with different polarization. The images are partitioned on the same sensor. The image that is relatively free of saturation can be used to perform eye tracking, thus improving eye tracking accuracy.

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.