What Is a Projection Keyboard?

Projection keyboard means to use projection as a new input method. It uses VKB keyboard technology, and uses the built-in red laser transmitter to project the outline of a standard keyboard on any surface, and then tracks the finger movements through infrared technology. Finally Acquire the input information. ^[1]

Projection keyboard

Projection keyboard means to use projection as a new input method. It uses VKB keyboard technology, and uses the built-in red laser transmitter to project the outline of a standard keyboard on any surface, and then tracks the finger movements through infrared technology. Finally Acquire the input information. ^[1]

advantage

The advantage of the projection keyboard is that it is easy to carry and has a smaller volume than a physical keyboard.

Gesture operations such as zoom in and out can be performed.

Disadvantage

Without the touch of a physical keyboard, it is easier to accidentally touch than a physical keyboard.

Use a pattern projector, a camera, and a linear induction laser.

First project the pattern onto the plane

A word line laser is set at the bottom to identify the laser spot formed by finger movement

Camera captures laser spot to complete recognition ^[1]