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

Synonyms

Definition

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.

Introduction

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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References

  1. 1.
    Kostkowski, H.J.: Reliable Spectroradiometry. Spectroradiometry Consulting, La Plata (1997)Google Scholar
  2. 2.
    SID IDMS Information Display Measurements Standard, v1.03, 1 June 2012Google Scholar
  3. 3.
    Hsu, S.W., Chung, T.Y., Pong, B.J., Chen, Y.C., Hsieh, P.H., Lin, M.W.: Relations between flicker, glare, and perceptual ratings of LED billboards under various conditions. In: CIE Centenary Conference, Paris (2013)Google Scholar
  4. 4.
    CIE 194: On Site Measurement of the Photometric Properties of Road and Tunnel Lighting (2011)Google Scholar

Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

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