The following definitions shall apply to this section:
FOOTCANDLE
Unit of light intensity stated in lumens per square foot and measurable with an illuminance meter (i.e., light meter) at ground level.
FULL CUTOFF
Attribute of a lighting fixture from which no light is emitted at or above a horizontal plane drawn through the bottom of the fixture and no more than 10% of the lamp's intensity is emitted at or above an angle 10° below that horizontal plane, at all lateral angles around the fixture.
GLARE
Excessive brightness in the field of view that causes loss in visual performance or annoyance, jeopardizing health, safety or welfare.
ILLUMINANCE
The quantity of light striking a surface as measured in footcandles.
LIGHT POLLUTION
The excessive, misdirected, or obtrusive artificial light that washes out starlight in the night sky, interferes with astronomical research, disrupts ecosystems, has adverse health effects, causes a nuisance, or wastes energy.
LIGHT TRESPASS
Unwanted light emitted by a lighting fixture or installation which is cast beyond the boundaries of the property on which the lighting installation is sited.
LUMEN
The International System of Units (SI) unit of luminous flux, a measure of the total quantity of visible light emitted by a source.
LUMINAIRE
A complete lighting unit consisting of a light source(s) together with all parts designed to control the light distribution, and any other mechanical, electrical, or decorative parts.
RECREATIONAL USE LIGHTING
Lighting used or designed for the purpose of lighting any principal or accessory uses of land, whether indoors or outdoors, intended for the pursuit of sports, recreation, or leisure activities, including, but not limited to playing fields, swimming pools, golf courses, tennis courts, or amphitheaters, and including both public and private uses.
SHIELDED
A luminaire from which no direct glare is visible at normal viewing angles by virtue of being properly aimed, oriented, and located and properly fitted with such devices as shields, barn doors, baffles, louvers, skirts or visors.