Surface Luminance Test of a Double Sided 36" x 72" LED Lightbox |
|
|
A
Surface Luminance Test measures the amount of illumination or light intensity
on a subject. Measured in lux, or lumens per square meter, the test indicates
the amount of visible light incident on a surface. This luminance test
was given with an Extech Instruments Foot Candle/Lux Meter, approximately
10 minutes after lighting up. The numbers correspond to spots tested along
the surface of the light box. As you can see, this test indicates that
the lightbox produces even light across the viewing area; there are no
hot or cold spots. The light distribution is uniquely designed to decrease
hot and cold spots. |
|
|
Surface
Luminance Test (unit: lux) |
|
  What does this mean? Excellent, Very Bright: Average Luminance above 2000 LUX Very Good, Good Brightness: Average Luminance between 1750 and 2000 LUX Basic Brightness: Average Luminance between 1600 and 1750 LUX Unacceptable Brightness: Average Luminance below 1600 LUX ** Please note that these are average lux readings and that variances may occur between bulbs, environments, etc. |
|