Meta 2021年09月09日 映维 Facebook Patent | Achromatic optical device based on birefringent materials having positive and negative birefringence dispersions
Meta 2021年09月09日 映维 Facebook Patent | Personalized equalization of audio output based on ambient noise detection
Meta 2021年09月09日 映维 Facebook Patent | Systems and methods for synchronizing eyewear devices with displays
Meta 2021年09月09日 映维 Facebook Patent | Miniature high performance mems piezoelectric transducer for in-ear applications
MagicLeap 2021年09月09日 映维 Magic Leap Patent | Angularly selective attenuation of light transmission artifacts in wearable displays