- a) Table’s metal frame
- b) Table-top - made of two sheets of acrylic glass and architect paper (working as diffuser for the picture emitted by projector) and two lines of infra-red (IR) Light Emitting Diodes (LED). It's fixed to a metal frame fixed with two hinges to the table’s frame.
- c) Two lines of IR LEDs - with appropriate power supply
- d) USB Web-camera with IR filter attached on flexible arm. IR filter is made of overexposed and processed negative film.
- e) Short-throw projector
- f) PC with Windows