Measuring light intensity. Researcher aligning a compact fluorescent lamp (CFL), also known as an energy saving light bulb, for calibration on a gonio

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Measuring light intensity. Researcher aligning a compact fluorescent lamp (CFL), also known as an energy saving light bulb, for calibration on a goniophotometer. A goniophotometer is an instrument that measures the intensity of light reflected from a surface at various angles. Photographed at the National Physical Laboratory, in Teddington, UK.

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Size: 3647px × 4831px
Photo credit: © ANDREW BROOKES, NATIONAL PHYSICAL LABORATORY/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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