TraxEye - Glow in the dark marker stud

DIN 67510 Evaluation
The TraxEyeTM Safety Illumination System has been evaluated by the the German Institute for Standardization (Deutsches Institut für Normung e.V., or DIN) under their 67510 standard.

DIN 67510 Testing and Results
All measurements of the TraxEyeTM Safety Illumination System were taken in total darkness. It is important to understand this distinction when trying to compare an absolute DIN measurement with the apparent luminance perceived in low ambient lighting. These differences in scientific luminance vs. practical luminance are explained below.

A TraxEyeTM photo luminescent disc was given an 8 minute exposure to a xenon source. The luminance value was then measured in millicandela per square meter (mcd/m2) and recorded against a time axis measured in minutes. The DIN 67510 results for the TraxEyeTM Safety Illumination System are as follows:

According to the DIN 67510 standard, a photo luminescence at or below .03 mcd/m2 is virtually undetectable to the human eye. For all intents and purposes, a photo luminescent pigment has stopped glowing at that minimal level. Extrapolation of the data suggests that the TraxEyeTM photo luminescent disc reaches 0.3 mcd/m2 at approximately 4000 minutes, or 66 hours.

Scientific Luminance
Scientifically speaking, the TraxEyeTM Safety Illumination System will glow for approximately 2 days and 9 hours (a total of 66 hours) after only an 8 minute exposure to natural daylight. If this photo luminescent "return on investment" is broken down into percentages, we see that the TraxEyeTM Safety Illumination System has a laboratory efficiency of approximately 50,000%

Practical Luminance
Testing in a multitude of real world lighting conditions from night time to a heavily shaded tree-lined walking trail at noon, has revealed a perceived glow time less than the DIN 67510 result but still excellent. The TraxEyeTM Safety Illumination System has an actual perceived, and therefore useful, glow cycle of about 720 minutes (12 hours) after only an 8 minute exposure to natural daylight. That is a practical efficiency of around 9,000%.

In other words, the TraxEyeTM Safety Illumination System has stored enough energy to emit an easily perceived glow that will last throughout the night, including late evening and early mornings, after only 8 minutes in normal daylight. Therefore, any path or public area lined with the TraxEyeTM Safety Illumination System will be clearly marked during these hours of darkness and can be safely traversed as long as the TraxEyeTM Marker Studs are not removed or obstructed by debris.

In conclusion, both scientific lab testing and practical field testing have confirmed that the TraxEyeTM Safety Illumination System will glow brightly all night long after only 8 minutes in normal daylight. This unanimous result underscores the TraxEyeTM Safety Illumination System's popularity as the #1 "green" illumination solution on the market today.