Definitions. As used in this article, the following terms shall have the meanings indicated:
The average level of illuminance for a given area measured at ground level with a light meter placed parallel to the ground.
The unit of measurement used to quantify the amount of light falling on a surface. One footcandle is the illuminance produced by a candle on a surface one foot square from a distance of one foot.
A visual effect produced when a light source within the field of view is brighter than the level to which the eyes are adapted. Glare may cause annoyance, discomfort, loss of visual acuity, or momentary blindness.
A light bulb or other component of a fixture that changes electricity into visible light.
The unit of measurement used to quantify the amount of light produced by a lamp or emitted from a fixture (as distinct from "watt," which is a measurement of the electrical power). For the purposes of this chapter, measurements in lumens shall refer to "initial lamp lumens" (as opposed to "maintained lamp lumens") as rated by the manufacturer when the lamp is new, as listed on the packaging.
Any outdoor lighting that creates a potential hazard to the public or light trespass or glare to neighboring properties, thereby causing loss of enjoyment, comfort, or repose.
An opaque device that is attached to a light fixture to prevent light from being emitted in certain directions.