As used in this article, the following terms shall have the meanings indicated:
The temperature at which an opaque and nonreflective object will radiate light of a color comparable to that of the light source. Color temperature is expressed in Kelvins (K). Light sources with higher color temperatures contain more blue light than light sources with lower color temperatures and appear brighter to the human eye, all other conditions being equal.
A broad-beamed high-intensity luminaire.
A luminaire that is constructed and installed so that no light is emitted at any angle above a horizontal plane passing through the lowest light-emitting part (including refractors, reflectors, translucent panels) of said luminaire to a point five feet above grade at the property line as might be viewed at that height by an observer standing at that place. Clear panels that scatter light, such as seeded glass, are considered refractors. Only opaque, nonreflective, and clear nonscattering materials are not considered light-emitting parts.
The component of a luminaire that produces light.
Illumination from a luminaire being cast where it is neither wanted nor needed, going beyond the lot lines of the lot on which the luminaire is located, at a level greater than the ambient illumination level as measured at the lot line in a horizontal and vertical plane.
A complete lighting unit, consisting of light sources, ballast (when applicable), and any part designed to distribute the light, position the unit, protect the light sources (housing), and connect to the power supply. Spotlights and floodlights which are further defined are included in this general definition as well.
Any electronic device capable of detecting physical motion within the environment being monitored. For the purposes of this by-law, said motion detector shall be used to trigger one or more luminaires into operation and to maintain it or them in the illuminated state for a preset time interval, after which said illumination shall be extinguished.
A high-intensity luminaire projecting a sharply focused beam of light.
