Definitions for "BARN DOORS"
Metal flaps in front of a lighting instrument. These control the spread of the light beam.
Movable hinged flaps used on stage lights to control light spill.
hinged doors (usually four), mounted on a motion picture light that may be adjusted to block off light in unwanted areas.
Black bars that appear along the sides of a 4:3 image viewed on a widescreen TV. The sideways equivalent of "letterboxing."
a term used in television production to describe the effect that occurs when a 4:3 image is viewed on a 16:9 screen. Viewers see black bars (“barn doors”) on the sides of the screen.