ViewSonic Introduces ToF Technology to its Latest Portable LED Projector

ViewSonic Corp. is introducing its latest M2e Instant Smart 1080p Portable LED Projector. This new addition to the company's M series of smart portable LED projectors uses Time-of-Flight (ToF) technology to achieve instant auto focus in an ultralight and portable design.

ToF technology enables the M2e to instantly auto focus in only one second, which is 3-5 times faster compared to current methods. It delivers impeccable optical precision, effortless setup, and its portability makes for flexible entertainment and work at home.

ToF sensors are a type of scanner-less LIDAR (light detection and ranging) technology that measures distance based on the time it takes for photons to travel between the sensor's emitter and the target area, enabling accurate distance ranging regardless of the object's surface characteristics. They also have high-accuracy linearity and up to 3m detection range with a full field of view.

Traditionally, when a projector is moved, it needs to be refocused by either a press on the remote control to trigger auto focus, or manual adjustments on the focus ring. With built-in G sensor design, the M2e can detect change of setup position and automatically trigger instant auto focus which utilizes ToF technology. Not only is the focusing more precise, but it can be completed in only one second, which is 3–5 times faster than the normal auto focus that uses a camera for continuous image capturing and matching, not to mention those by manual focus ring adjustment.