Someone who devises or suggests a project; a proposer or planner of something. / An optical device that projects a beam of light, especially one used to project an image (or moving images) onto a screen.

plural of projector

A device that takes a video signal and projects the corresponding image on a projection screen using a lens system.

An opto-mechanical device for displaying motion pictures by projecting them on a projection screen (Movie projector for projection of moving images from film).

A projector that projects an image over the heads of the viewers onto a screen in front of them.

A handheld projector designed to project an image from a smartphone etc onto a wall

The device used to project images of celestial objects onto the dome in a planetarium.

plural of star projector

A device that projects an enlarged image of a photographic slide onto a screen

plural of film projector