Because it’s impractical to mock up every design element in a project, lighting designers often rely on photometric reports and computer-generated renderings to predict the distribution and effects of light after lighting is installed. The Lighting Practice’s Evan Wilson explains what’s involved in a recent LinkedIn article.
Lighting professionals study photometrics for the same reason a meteorologist studies the weather or an economist studies statistics, we want to deliver the most accurate information to our clients. In a perfect world, we would be able to determine precisely what every light fixture will do in a space before it is specified, purchased and installed. While a mock-up or a pilot install can provide insight, it is impossible and impractical to mock up every single design element on any given job. Instead, we turn to photometric models, or calculations, to understand what we are recommending to our clients. Like a weather professional or economist uses each of their respective models to make a prediction, photometric calculations can be used to make an educated guess as to how light will perform in a space.
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