Ultra-short focus smart switch

In 2015, Apple proposed a smart switch system based on projection technology, which can project virtual switches on the wall, so that residents no longer have to worry about the switch position.

The projector is located directly above the entire virtual display area. When it detects someone entering, it will automatically turn on, and project the virtual switches of household appliances such as lights, stereos, and air conditioners on the wall according to the preset program, so that users can Directly control household appliances, and now interactive projection technology is actually relatively mature.