Bacač, sprava za bacanje; sprava bacačica; takođe: projekcioni aparat. (lat.)
ETYM Cf. French projeteur.
1. A device for projecting a beam of light.
2. An optical instrument that projects an enlarged image onto a screen.
Any apparatus that projects a picture on to a screen. In a slide projector, a lamp shines a light through the photographic slide or transparency, and a projection lens throws an enlarged image of the slide onto the screen. A film projector has similar optics, but incorporates a mechanism that holds the film still while light is transmitted through each frame (picture). A shutter covers the film when it moves between frames.