All solid-state LiDAR sensor that sees 360 degrees

https://techxplore.com/news/2022-10-solid-state-lidar-sensor-degrees.html

"The study is significant in that the technology that allows cell phones, augmented and virtual reality (AR/VR) glasses, and unmanned robots to recognize the 3D information of the surrounding environment is fabricated with nano-optical elements. By utilizing nanoimprint technology, it is easy to print the new device on various curved surfaces, such as glasses or flexible substrates, which enables applications to AR glasses, known as the core technology of future displays"

Related:

Optical phased array transforms LiDAR

https://www.laserfocusworld.com/detectors-imaging/article/14282707/optical-phased-array-transforms-lidar

Metasurfaces for ultrasmall solid-state LiDAR sensors?

https://www.laserfocusworld.com/optics/article/14286630/metasurfaces-for-ultrasmall-solidstate-lidar-sensors

Glasses use sonar, AI to interpret upper body poses in 3D

https://news.cornell.edu/stories/2023/11/glasses-use-sonar-ai-interpret-upper-body-poses-3d