Definitions. For purposes of this section, unless otherwise defined, the following words and phrases when used in this section shall have the following meaning:
"Direct illumination"means illumination resulting from light emitted directly from a lamp or luminaire, not light diffused through translucent signs or reflected from other surfaces such as the ground or building faces.
"Fully shielded fixture"means an outdoor light fixture shielded in such a manner that all light emitted by the fixture, either directly from the lamp or indirectly from the fixture, is projected below the horizontal plane as determined by photometric test or certified by the manufacturer. A light fixture mounted under a canopy or other structure such that the canopy or surrounding structure effectively shields the light in the same manner is also considered fully shielded for the purposes of this definition.
"Light glare"means the reflections of light sources which reduce the contrast between detail and background within the visual area.
"Light trespass"means any form of artificial illumination emanating from a light fixture or illuminated sign that penetrates other property and creates a nuisance.
"Lumen"means that unit used to measure the actual amount of light which is produced by an outdoor light fixture.
"Luminous tube lighting"means gas-filled tubing which, when subjected to high voltage, becomes luminescent in a color characteristic of the particular gas used, e.g., neon, argon, etc.
"Outdoor light fixture"means an electrically powered illuminating device which is permanently installed outdoors, including, but not limited to, devices used to illuminate any site, structure, or sign.
"Temporary lighting"means lighting which does not conform to the provisions of this section and which will not be used for more than one continuous 30 day period within one calendar year. Temporary lighting is intended for uses, which by their nature are of limited duration; e.g. holiday decorations, civic events, special events, construction projects, emergencies or similar situations. The 30 day time limitations may be extended by the City on a case-by-case basis for unusual or special circumstances.
"Unshielded"means fixtures lacking any means to restrict the emitted light to below the horizontal plane.