S.L. 552.28 Art. 24

Third party rights are not to be affected. Definitions

"ELECTRONIC ADVERTISEMENT" means an advertisement which has an electronically controlled, illuminated display surface, which allows all or a portion of the advertisement to be changed or illuminated in different ways.

"LUMINANCE" is a measure of how bright an illuminated area appears to the human eye and is measured in candela/m².

NOTE: A footcandle meter is also known as a lux meter. It measures the amount of light arriving at the meter (illuminance) as opposed to an absolute measurement of the amount of light emanating from a light source or light sources (luminance). A footcandle is a measure of lumens (light rays) that fall on one square foot area. Lux is the metric equivalent of a footcandle.

In contrast, a candela meter measures the amount of light emanating from a specific light source (luminance). It measures candelas (a measure of luminance or brightness) emanating from a specific light source. It excludes ambient light (which may include light from many sources) from the measurement. The OAAA does not recommend using standard candela levels and/or the use of a candela meter to measure the brightness of digital billboards.