29 Terms
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Lighting products
Industry: Lights & lighting
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Lighting products
Ignitor
Lights & lighting; Lighting products
An electronic device providing a high voltage pulse to initiate an electrical discharge. Typically, the ignitor is paired with or is a part of the ballast (See STARTER).
Illuminance
Lights & lighting; Lighting products
The "density" of light (lumens/area) incident on a surface; i.e. the light level on a surface. Illuminance is measured in footcandles or lux.
Illuminance metre
Lights & lighting; Lighting products
A device that measures the illuminance at a location calibrated either in footcandles or in lux. (Also know as a light metre -- See COSINE CORRECTED)
Incandescent lamp
Lights & lighting; Lighting products
A light source that generates light utilising a thin filament wire (usually of tungsten) heated to white heat by an electric current passing through it.
Indirect lighting
Lights & lighting; Lighting products
The method of lighting a space by directing the light from luminaires upwards towards the ceiling. The light scattered off the ceiling produces a soft, diffuse illumination for the entire area.
Induction lighting
Lights & lighting; Lighting products
Gases can be excited directly by radio-frequency or microwaves from a coil that creates induced electromagnetic fields. This is called induction lighting and it differs from a conventional discharge, ...
Infrared radiation
Lights & lighting; Lighting products
Electromagnetic energy radiated in the wavelength range of about 770 to 1,000,000 nanometers. Energy in this range cannot be seen by the human eye, but can be sensed as heat by the skin.
