For the purposes of this chapter, terms used shall be defined as follows:
BOLLARD LIGHTA short vertical post used in landscaping that contains a lighting fixture.
DIRECT LIGHTLight emitted directly from the lamp, off of the reflector or reflector diffuser, or through the refractor or lens, of a luminaire.
DISABILITY GLAREThe eye's line-of-sight contact with a direct light source, which causes a momentary blindness.
FIXTUREThe 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.
FLOODLIGHT OR SPOTLIGHTAny light fixture or lamp that incorporates a reflector or a refractor to concentrate the light output into a directed beam in a particular direction.
FULLY-SHIELDED LIGHTS OF FULL CUT-OFF TYPE FIXTUREOutdoor light fixtures shielded or constructed so that no light rays are emitted by the installed fixture at angles above a ninety-degree, horizontal plane from the base of the fixture as certified by a photometric test report. Full cutoff fixtures must be installed in a horizontal position as designed, or the purpose of the design is defeated.
GLARELight emitting from a luminaire with an intensity great enough to reduce a viewer's ability to see, and in extreme cases causing momentary blindness.
HEIGHT OF LUMINAIREThe vertical distance from the ground directly below the centerline of the luminaire to the highest direct-light-emitting part of the luminaire.
LAMPThe component of a luminaire that produces the actual light.
LIGHT TRESPASSThe shining of light produced by a luminaire beyond the boundaries of the property on which it is located.
LUMENA unit of luminous flux. One footcandle is one lumen per square foot. For the purposes of this chapter, the lumen-output values shall be the initial lumen output ratings of a lamp.
LUMINAIREA complete lighting system, comprised of a lamp or lamps and a fixture.
UNIFORMITY RATIOThe uniformity of light levels across an area, expressed as a ratio of average to minimum level of illumination for a given area.