Ch. 17 Theatre

an optical phenomenon in which objects that are farther away appear less sharply in focus and less fully saturated in color

a tool used to secure rivets in thin metal

lamps made in the United States are designated with a three-letter code that specifies all design criteria such as wattage, voltage, filament and base type, color-temperature rated life, and so forth. FEL specifies a very specific 1000-watt lamp

a high-wattage instrument used for projecting large-format slides or moving images

a reasonably high-output instrument capable of projecting standard 35 mm slides

a glass dichroic filter that reflects the infrared spectrum while allowing visible light to pass

a device that condenses the direct and reflected light from a source and concentrates it on the slide plane aperture of a projector

a device to focus a projected image on a screen or other surface

a housing that holds scenic-projector lenses in fixed positions to project images of a specific size

a motor-driven unit capable of producing crude moving imaged with a scenic projector

an intense circle of light created when a projector lens is seen through a rear screen

the use of a heat gun (a high-temperature air gun, visually similar to a hand-held hair dryer) to fuse two pieces of plastic