Encyclopedia of Color Science and Technology

2016 Edition
| Editors: Ming Ronnier Luo

Luminance Meter

  • Bor-Jiunn Wen
Reference work entry
DOI: https://doi.org/10.1007/978-1-4419-8071-7_359



A luminance meter is a device used to measure the photometric unit, luminance, in a particular direction at a solid angle from a surface. The simplest devices measure the luminance in a single direction, while imaging luminance meters measure luminance in much the same way that a digital camera records color images.


The luminance of a light source (integrating sphere with known output aperture) is determined from the measurement geometry and illuminance measured by a photometer. The luminance of the light source is obtained as
$$ {L}_v=\frac{E_v{D}^2}{A} $$
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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  1. 1.Department of Mechanical and Mechatronic EngineeringNational Taiwan Ocean UniversityKeelungTaiwan