For the purposes of this article, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
FIXTURE. The complete lighting unit, consisting of the lamp(s), and parts designed to distribute the light (reflector, lens, diffuser), position and protect the lamp(s), and connect the lamp(s) to the power supply. Also called a luminaire.
FOOTCANDLE. The unit of measure expressing the quantity of light received on a surface. One footcandle is the illuminance produced by a candle on a surface one-foot square from a distance of one foot.
FULLY-SHIELDED FIXTURE. A fixture constructed and installed in such a manner that all light emitted by the fixture, either directly from the lamp or a diffusing element, or indirectly by reflection or refraction from any part of the fixture, is projected below the horizontal plane through the fixtures lowest light-emitting part.
GLARE. Lighting entering the eye directly from luminaires or indirectly from reflective surfaces that causes visual discomfort or reduced visibility
LAMP. A generic term for a source of light, often called a "bulb," or "tube.”
LIGHT TRESPASS. Light that falls beyond the property it is intended to illuminate.
LUMEN. The unit of measure used to quantify the amount of light produced by a lamp or emitted from a fixture. This is different from a watt which is a measure of power consumption; a 12-watt LED bulb and a 60-watt incandescent bulb each produce about 900 lumens.
PHOTOMETRY. The measurement of light in terms of its perceived brightness to the human eye.
(Ord. 2021-19, passed 11-15-21)