A small room in which the film projectors are supervised. A projector is an optical gadget that projects a picture (or moving image) into an aspect and frequently in a projection screen. Many projectors make an image by sparkling a light via a tiny transparent lens, but some kinds of projectors can form the image instantly, by employing lasers. A virtual retinal display, or retinal projector, is a projector that projects a picture directly on the retina instead of utilizing an external projection screen.