How does the hologram work on japan’s hologram self checkouts?

Question

[Here](https://youtube.com/shorts/Y9hBiBTw9LY?feature=share) is a video of it.

In: 7

Answer 1

Mirrors and lenses can mess with the light rays. The light for the display is coming from under the glass, but they’ve used some tricky mirrors and lenses to kinda focus it weird, so when you move your head left the light moves right in your field of vision *move* than the glass does, so your brain interprets it as the light must be closer to you than the glass. But notice how the light always cuts off at the edge of the glass, that’s because it’s actually behind the glass.

And probably a miniature radar to detect where your hand is.