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glossary
 
A-BC-DE-FG-KL-NO-ST-Z



A

Accent Wash
A wash of light over an area, adding colour.

ACL Light
A very narrow beam, low voltage Par aircraft land light.

Adaption
The process of the eye getting used to or reacting to changes in light intensity

Ampacity
The maximum allowable electrical current, in amperes, that a conductor can safely carry.
Temperature, humidity, and other factors can affect a conductor's ampacity.

Amperage
A component of electricity used to measure the number of electrons moving past a given point in a circuit.

AMX
Abbreviation for Analog Multiplex.

Analog Multiplex
A system that simultaneously transmits more than one analog signal.

ANSI
American National Standards Institute.

ANSI Code
A three letter system that has been devised to describe lamps of different manufacture but the same application.

Area Lighting
The main visibility lighting for an acting area.

Automated Light
A luminiare that is robotic, i.e.., certain functions such as panning, tilt, focusing, dimming,
beam shaping and colour are motorized and remotely operated.

AWG
American Wire Gauge

B

Backdrop
A vertical surface which is used to form the background.

Ballast
An electrical apparatus that limits the electrical current through an arc source.

Barndoor
A device with 2/4 or 8 doors for masking a light beam off areas.

Batten
A pipe hung on a set of lines to which lighting or scenery can be hung.

Beam Apple
The angle at which the beam edges are 50% of the centre beam candlepower.

Beam Spread Factor
A number with which you multiply the throw distance to determine beam spread.

Blacklight
A luminaire with a beam whose wavelengths are too short to be visible, i.e.., 320 to 380nm.
The ultraviolet wavelengths excite fluorescent materials, paints, etc.

Blackout
The fast shutdown of all lighting

Blind Mode
Setting up a lighting scene or preset when another is active.

Boom
A vertical pipe mounted in a base, used to hang lighting fixtures. Border Light. See Striplight.

Breakup
An opaque or translucent material having a cutout which will allow light to pass
through the cutout area in order to protect a dappled form, such as a cloud formation.

Bulb
The "glass" part of a lamp.


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