One who shuts or closes.

A removable cover, or a gate, for closing an aperture of any kind, as for closing the passageway for molten iron from a ladle.

A mechanical device of various forms, attached to the aperture of a camera lens for opening and closing to expose the plate. It is usually designed so that the time during which the aperture is opened may be varied by a manual dial or by some automatic mechanism, thereby allowing proper exposure of a photographic film under different intensities of light.

A device for controlling the amount of time a light-sensitive medium is exposed to light.

A movable cover or screen for a window, designed to shut out the light, to obstruct the view, or to be of some strength as a defense; a blind.

solid or slatted window cover located on building interior or exterior

a wooden or metal cover that can be unfolded in front of a window ..... return

a hinged blind for a window

Accessory for a profile lantern. Metal blade which can be used to shape the edge of the beam. Shutters (normally four) are located in the gate at the centre of the lantern. Similar in effect to barndoors.

A metal plate or cutter placed at the gate of an ERS (or less commonly within an automated fixture or followspot) that allows a portion of the beam to be cut away or eliminated. See Also: Followspot Automated Fixture Ellipsoidal Reflector Spotlight

Metal flags used within a luminaire to shape the beam.