Reflectance Values for Common Materials
Vela Photometrics uses light reflectance values (LRVs) of 80% for ceilings, 50% for walls, and 20% for floors unless any other material details have been
Michael Gavin
August 18, 2024
Blog
Material Properties: Reflectance and Transmittance
Spaces are illuminated not only directly by light sources, but also by indirect light reflected off of objects. Additionally, many spaces are illuminated by light
Michael Gavin
September 6, 2023
Standards for Emergency Egress Lighting Calculations
A well-thought-out emergency egress lighting plan is an essential component of creating a safe indoor space and is usually a building code requirement. Direct Light
Michael Gavin
August 3, 2023
Human Photoreceptors and Types of Spectral Sensitivities
Understanding the different types of photoreceptors in the eye and how they process light helps distinguish traditional focuses in lighting design from emerging trends in
Michael Gavin
July 30, 2023
Standard Heights: Kitchen Counters, Bathroom Stall Dividers, and Ceiling Baffles
Reflected ceiling plans (RCPs), sometimes accompanied by floorplans, are the most commonly used architectural drawings for running lighting calculations. So long as RCPs include ceiling
Michael Gavin
July 19, 2023
Recommendations for Improved Calculation Accuracy and a Quick Turnaround
Lighting calculations can be performed with a wide variety of design representations, whether they be pdfs, dwgs, 3D models, or even hand sketches. Meaningful photometric
Michael Gavin
June 20, 2023
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