Answer:
The camera obscura.
Explanation:
The camera obscura was first invented by the Arab scientist Ibn al-Haytham. This was the first approximation to what we know today as a digital camera.
The camera obscura was a black small box (or a room) with a small hole in one side, that allows light to get through, this projects the image in the outside to one of the walls of the box; hence, a 2D projection of a 3D object.
Around 700 years later, the Italian painter Leonardo Da Vinci also used this device to work on his arts and invested a lot of time into improving its design.
