Lighting Production Final

The properties of light are distribution, intensity, movement, and color.

The objectives of light are visibility, selective focus, modeling, and psychological mood.

A step lens is made by cutting away from the plano side, and a Fresnel lens is made by cutting away from the convex side.

The three types of reflectors are spherical, ellipsoidal, and parabolic. A spherical reflector is not used alone but with other lenses; it can be used in a beam projector. An ellipsoidal reflector can be used in an ERS, and a parabolic reflector can be used in a PARcan.

The cones in our eyes perceive color, as the rods only perceive light and dark.

A Fresnel produces a softer beam because of the way it is cut, which was optimized for more refraction.

Load calculations determine the load an instrument or dimmer can handle and are used for safety. The equation for load calculations is W=V*A.

The West Virginia formula is Watts = Volts x Amps.

Movement in lighting pertains to cues and practicals, which can be actor-moved.

The primary colors in lighting are Red, Blue, and Green, and the primary colors of pigment are Cyan, Magenta, and Yellow.

Wattage: power used by device

Voltage: force pushing electrons through a circuit

Amperage: flow of electrical current

The additive color theory adds all colors/lights to produce white. Gels use the subtractive color theory, blocking specific wavelengths; the subtractive theory uses all the colors to make black.

The CPT is a proscenium theater. The Inge is a black-box theater.

The CPT has a single-purchase fly system.

GOBO stands for GO between Optics.

The theater already has preinstalled circuitry, such as grid cables, wall boxes, and floor pockets, are already in the theater. Breakouts, dimmers, and dropboxes are examples of added circuitry.