Measuring light intensity. Researcher aligning a flux reference standard lamp for calibration on a goniophotometer. A goniophotometer is an instrument

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Measuring light intensity. Researcher aligning a flux reference standard lamp 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: 3638px × 4851px
Photo credit: © ANDREW BROOKES, NATIONAL PHYSICAL LABORATORY/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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