society > leisure > the arts > visual arts > photography > viewing of photographs > [noun] > projecting on to screen > projector > parts of (6)
A tinted glass slide used with plain slides in a magic lantern.
the objective lens in a film or slide projector, which projects an enlarged image.
the part of a photographic enlarger or projector which houses the light-source.
a device similar to the shutter of a camera which permits momentary exposure of slides for teaching purposes.