FOOT-CANDLE (FC). A unit of illuminance of equal to one lm/ft² (lumen/square foot) or 10.76 lx (lux).

FULLY SHIELDED (FULL CUTOFF). A fixture constructed (or shielded with an opaque material) so that light rays emitted by the fixture, either directly from the lamp or indirectly from the fixture, are projected only below a horizontal plane running through the lowest point on the fixture where light is emitted.

IESNA. Illuminating Engineering Society of North America.

OPAQUE. Impervious to the passage of light and not reflecting light.

OUTDOOR LIGHT FIXTURE (LUMINAIRE). Artificial outdoor illuminating devices, outdoor fixtures, lamps and other devices, permanent or portable, used for illumination or advertisement. Such devices shall include, but are not limited to: search, spot or floodlights; security lights; parking lot lighting; landscape lighting; recreational areas and pathway lighting; exterior building or structure illumination; street lights; signage lighting; and shall include the complete lighting unit consisting of a lamp or lamps and ballast(s) (when applicable) together with the parts designed to distribute the light, to position and protect the lamps and to connect the lamps to the power supply. Traffic lights are not OUTDOOR LIGHT FIXTURES.

PARTIALLY SHIELDED (PARTIAL CUTOFF). A fixture constructed (or shielded) so that the bottom edge of the lens extends below the bottom plane of the fixture, and that allows some light to extend above the horizontal plane extending from the lowest point on the fixture where light is emitted.

SECURITY LIGHTING. Lighting that is fully shielded that is intended to provide bright illumination during emergency situations only.

SPILL LIGHT. The amount of light that illuminates beyond the range or primary area that the fixture is intended to light.

TRANSLUCENT. Admitting and diffusing light so that objects and the light source beyond cannot be clearly perceived. (Ord. 312 § 2(17.2), passed 4-11-2012. Code 2012 § 152.277.)