Indoor Lighting Design Using DIAlux 4.13

General information required for calculations
Philips Catalog
  • Polar Intensity Curve is the plot that shows the relationship between the Candle Power and Angular Position and provides a visual representation of the light intensity distribution expected from the luminaire.
Technical Specification
IESNA Lighting Handbook 9th Ed. Illuminating Engineering Society of North America
Enter the required lux level
To display the calculation result click on Single Sheet Output
Another way to show the calculated result

Two points that need to be considered in lighting calculations:

  • Maintained illuminance is the lighting level on the given area, average, minimum, and maximum (Eavg, Emin, Emax)
  • Uniformity Factor (UF) of the lighting, as determined from Eavg/ Emin its value should be close to 0.9/1. The below figure shows the effect of the UF.
Single sheet output, u0 is the uniformity factor, it show also the total No. of lighting fixtures and total power required.
  • Dialux Technical support, software help.
  • IESNA Lighting Handbook 9th Ed. Illuminating Engineering Society of North America

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Aisha

Aisha

Electrical Engineer KAU 2019 👩🏻‍🎓✨