Primesense never made a ToF sensor. When they were bought by Apple they had a Structured Light sensor on the market and apparently had a MEMS-mirror LiDAR senso

Primesense never made a ToF sensor. When they were bought by Apple they had a Structured Light sensor on the market and apparently had a MEMS-mirror LiDAR sensor in the labs. Despite the name, ToF sensor typically means using modulated flood illumination and phase shift to compute the depth. It's conceptually very simple but suffers multi-path errors and poor efficiency. Real Time-of-Flight sensors (that measure depth by timing light) are typically called LiDAR. These typically collect many pointwise independent measurements. The LiDAR inside the iPad Pro and the iPhone Pro is solid state (no moving parts, not even a MEMS mirror). It was developed by Sony and they are now selling it to Apple.