N - Lighting, Audio, Staging & Video

Crossfade - A value of time that is assigned to a parameter that controls the duration of change from one DMX value to another DMX value or to fade from one scene to another. This is a lighting console term.. Used Lighting. . Used Lighting. ...

Arc Lamp - An arc lamp is a device that produces light by the sparking (or arcing, from voltaic arc or electric arc) of a high current between two carbon rod electrodes. The rods are touched and then slowly draw. Used Lighting. n apart; as the rods separate the current is "struck" and arcs across the gap in a bright, ionized path. The arc produces a temperature of several thousand degrees, and the tips of th. Used Lighting. e carbon rods are heated to incandescence, creating light. The rods are slowly vaporized during the process and need to be regularly adjusted to maintain the arc. The concept was first demonstrated by Sir Humphry Davy...

Stepper Motor - A stepper motor is a type of electric motor that is used when something has to be positioned very precisely or rotated by an exact angle.

In a stepper motor, an internal rotor containing. Used Lighting. permanent magnets is controlled by a set of stationary electromagnets that are switched electronically. Hence, it is a cross between a DC electric motor and a solenoid. Stepper motor. Used Lighting. s do not use brushes and commutators.

Stepper motors have a fixed number of magnetic poles that determine the number of steps per revolution. Most common stepper motors have 200 full steps/revolution, mea

Lighting Control Console - Lighting control consoles (also called lighting boards or lighting desks) are electronic devices used in theatrical lighting design to control multiple lights at once. They are used throughout the ent. Used Lighting. ertainment industry and are normally placed at the FOH position or in a control booth. All lighting control consoles can control dimmers which, in turn, control the brightness of the . Used Lighting. lights. Many modern consoles can also control intelligent lights (lights that can move and change colors), fog machines and hazers, and other special effects devices. Consoles communicate with the dimmers and other de...

Subtractive Color - Subtractive color explains the theory of mixing paints, dyes, inks, and natural colorants to create colors which absorb some wavelengths of light and reflect others. The color that an object appears t. Used Lighting. o have is based on what parts of the electromagnetic spectrum are reflected by it, or conversely by what parts of the spectrum are not absorbed.

Anything that is not addi. Used Lighting. tive color is subtractive color. No other color mixing systems are known, except the imperfect system resulting from mixing real pigments, something that is very confusing nowadays.

Color is not an absolu...