What standards are used in Lumen-Micros calculations and have the predictions been compared to physical measurements?
Lumen-Micro employs calculation techniques that adhere to generally accepted practices in the illumination engineering profession both in the United States and internationally. The techniques used for the electric lighting calculations are derived from general radiative transfer theory for diffuse environments and have been compared and verified against physical measurements by Lighting Technologies1 and independent parties2 for both empty rooms and rooms containing obstructions. The daylighting calculations use sun and sky models accepted by both the IESNA3 and the CIE4. Furthermore, the daylight calculations have been compared and verified against physical measurements. The results of said comparisons as well as a full description of the calculation techniques used to calculate daylighting levels were presented at Lux Europa in 19935.
