§ 23.3. Definitions.

For purposes of this Article, the following terms are defined:

Candlepower: The unit of intensity of a light source in a specific direction. One candela directed perpendicularly to a surface one foot away generates one footcandle of light.

Cobrahead light: A standard roadway light, usually mounted to a mast arm and suspended over a roadway at a height of 25 to 40 feet, and usually mounted on aluminum poles, and which do not always control glare.

Direct light: Light emitted directly from the lamp, off of the reflector or reflector diffuser, or through the refractor or diffuser lens, of a luminaire.

Fixturev The assembly that houses the lamp or lamps and can include all or some of the following parts: a housing, a mounting bracket or pole socket, a lamp holder, a ballast, a reflector or mirror, and/or a refractor or lens.

Footcandle: A unit of illuminance on a surface that is everywhere one foot from a uniform point source of light of one candle and equal to one lumen or candela per square foot (1 fc = 1 lumen/sq. ft.) or (candelas/distance sq.). One footcandle (FC) is the equivalent of 10.76 Lux (1 Lux = 0.0929 FC).

Full cutoff luminaire: Outdoor light fixtures shielded or constructed so that no direct light rays are emitted by the installed fixture at angles above the horizontal plane.

Glare: Light emitting from a luminaire with an intensity great enough to reduce a viewer's ability to see, and in extreme cases causing momentary blindness, or that causes annoyance or discomfort.

High-mast lights: Outdoor lighting with average heights of 60 to 100 feet, used for highway interchanges and sports fields.

Illuminance: The area density of the luminous flux incident at a point on the surface. It is a measure of light incident on a surface, expressed in lux or footcandles.

Isofootcandle plan: A site plan of a proposed development showing proposed outdoor illuminance with a series of isofootcandle lines that join points on a surface where the illuminance is the same.

Light trespass: The shining of light produced by a luminaire beyond the boundaries of the property on which it is located.

Luminaire: A complete lighting system, including a lamp or lamps and a fixture. This term shall be interpreted broadly as applying to all outdoor electrically powered illuminating devices, outdoor lighting or reflective surfaces, lamps and similar devices, permanently installed or portable, used for illumination.

Outdoor lighting: The night-time illumination of an outside area or object by any man-made device located outdoors that produces light by any means; electrically powered illuminating devices, outdoor lighting or reflective surfaces, lamps and similar devices, permanently installed or portable, used for illumination or advertisement. Outdoor lighting includes but shall not be limited to outdoor lighting fixtures for the following, except as may be otherwise specifically exempted from the requirements of this Article:

(a)

Buildings and structures, whether principal or accessory;

(b)

Building overhangs and freestanding or attached canopies;

(c)

Recreational areas;

(d)

Parking lots;

(e)

Landscaping;

(f)

Signs;

(g)

Private driveways and streets; and

(h)

Exterior product display area, or interior product display when viewed from more than two feet outside the display area.

Safety lighting: Exterior lighting that involves ensuring proper levels of illumination to provide safe working conditions, safe passage, and the identification of outdoor hazards.

Security lighting: Exterior lighting installed solely to enhance the security of people and property.