Interesting! TLDR is that Apple replaced a stack of four optical components with one flat metasurface to collimate the dots the FaceID camera uses to track face

Interesting! TLDR is that Apple replaced a stack of four optical components with one flat metasurface to collimate the dots the FaceID camera uses to track face shape. Although they found it in the iPad and are only assuming (rightly, probably) that it will be in the iPhone 17. I wonder why none of the large tech blogs seemed to have picked that up?