A Tutorial on Photometric Dimensions and Units

Metadata

Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: SMPTE Mot. Imag J.
Volume: 124, No. 5, pp. 48–55
Abstract: Numerous units are used to measure light, representing a variety of photometric dimensions. In the study of image capture, reproduction, and display, the differences between these various dimensions are important but often a source of confusion. This tutorial enumerates and describes these dimensions and their corresponding units and explains their appropriate applicability and usage. These dimensions include luminous energy, luminous power, luminous intensity, illuminance, luminance, and luminous exposure. The Système International d’Unités (SI) base unit candela is explained, and the derivations of the SI units for the other photometric dimensions are described. An example is provided for the case of sunlight.
Publication Date: 2015-07-01
DOI: 10.5594/j18576
ISSN: Print: 1545-0279 | Electronic: 2160-2492
Link: https://doi.org/10.5594/j18576
Author(s): George H. Joblove
bio
George Joblove has played key and pioneering roles in the development and application of digital technology to the entertainment industry throughout his career, and currently advises technology- and media-oriented clients as an independent consultant. He served as executive vice president of advanced technology at Sony Pictures Entertainment, where his focuses included facilitating improved workflows and image quality across production, postproduction, and distribution. Previously, Joblove was chief technology officer at Sony Pictures’ visual-effects and animation unit, Imageworks, and he co-founded and led the digital-effects department of Industrial Light & Magic. Joblove received a Scientific and Engineering Academy Award in 1994. He has two patents in 3D photography and cinematography. He is a member of the Academy of Motion Picture Arts and Sciences, a past co-chair of its Science and Technology Council, and an associate member of the American Society of Cinematographers. He holds a B.S. in computer science, and an M.S. in computer graphics, both from Cornell University.
Keyword(s): Photometry, Dimension
Copyright: © 2015 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

CIE.2004.2004 — CIE 2004, op. cit. p. 5. EXTERNAL
CIE.2011.2011 — CIE 2011, op. cit. EXTERNAL
J. H. Lambert, Photometria, sive de Mensura et Gradibus Luminis, Colorum et Umbrae, Augsburg: Eberhard Klett, 1760; http://books.google.com/books/about/Photometria.html?id=tbM6AAAAcAAJ, translated as Photometry, or On the Measure and Gradations of Light, Colors and, Shade, David L. DiLaura, translator, New York: Illuminating Engineering Society, 2001. EXTERNAL
Eastman Kodak Company, “Kodak Vision3 500T Color Negative Film 5219/7219/SO-219; Technical Data/Color Negative Film” (Publication No. H-1-5219t), Rochester, NY, April 2010, http://motion.kodak.com/motion/uploadedFiles/TI2647.pdf, page 4. EXTERNAL
H. A. Klein, The Science of Measurement: A Historical Survey, New York: Dover, 1988. p. 711. EXTERNAL
Commission Internationale de l´Eclairage, “CIE S 017/E:2011, ILV: International Lighting Vocabulary,” Vienna: CIE, 2011. EXTERNAL
E. Budding and O. Demircan, Introduction to Astronomical Photometry, 2nd ed. Cambridge: Cambridge University Press, 2007. p. 46. EXTERNAL
Commission Internationale de l´Eclairage, “CIE S 010/E:2004, Photometry—The CIE System of Physical Photometry,” Vienna: CIE, 2004. p. 1. EXTERNAL
Report of the 20th meeting (17–18 September 2009) to the International Committee for Weights and Measures, Version 2: amended 13 April 2011, Consultative Committee for Photometry and Radiometry (CCPR), Bureau International des Poids et Mesures: Sèvres, France, http://www.bipm.org/utils/common/pdf/CC/CCPR/CCPR20.pdf EXTERNAL
Rensselaer Lighting Research Center, Illumination Fundamentals, Troy, NY: Rensselaer Polytechnic Institute, 2000. p. 34. EXTERNAL
Le Système International d’Unités (SI), 8e édition, Bureau International des Poids et Mesures, Sèvres, France: BIPM 2006, http://www.bipm.org/utls/common/pdf/si_brochure_8.pdf EXTERNAL
SI 2006, op. cit. p. 116. EXTERNAL
R. V. Karandikar, “Luminance of the Sun,” J. Opt. Soc. Am., 45(6):483-488, June 1955. EXTERNAL
SMPTE RP 94:2000 [Active, Stabilized]

Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-j18576.json

Reference Tree

Explore all references and references to this document, as a navigable tree.

Open Reference Tree

Reference this Doc

Plain text (ISO 690 compliant)

Preview:

George H. Joblove; A Tutorial on Photometric Dimensions and Units, SMPTE Motion Imaging Journal ( Volume: 124, Issue: 5, July 2015); SMPTE, 2015. Available at https://doi.org/10.5594/j18576

Snippet:

George H. Joblove; A Tutorial on Photometric Dimensions and Units, SMPTE Motion Imaging Journal ( Volume: 124, Issue: 5, July 2015); SMPTE, 2015. Available at https://doi.org/10.5594/j18576

HTML (ISO 690 compliant)

Preview:

George H. Joblove; A Tutorial on Photometric Dimensions and Units, SMPTE Motion Imaging Journal ( Volume: 124, Issue: 5, July 2015); SMPTE, 2015. Available at https://doi.org/10.5594/j18576

Snippet:

<span class="citation">George H. Joblove; <cite>A Tutorial on Photometric Dimensions and Units</cite>, SMPTE Motion Imaging Journal ( Volume: 124, Issue: 5, July 2015); SMPTE, 2015. Available at <a href="https://doi.org/10.5594/j18576" target="_blank" rel="noopener">https://doi.org/10.5594/j18576</a></span>

SMPTE's HTML Pub

Preview:

George H. Joblove; A Tutorial on Photometric Dimensions and Units, SMPTE Motion Imaging Journal ( Volume: 124, Issue: 5, July 2015); SMPTE, 2015
doi: 10.5594/j18576
url: https://doi.org/10.5594/j18576

Snippet:

<li>
George H. Joblove; <cite id="bib-10-5594-j18576">A Tutorial on Photometric Dimensions and Units</cite>, SMPTE Motion Imaging Journal ( Volume: 124, Issue: 5, July 2015); SMPTE, 2015
<span class="doi">10.5594/j18576</span>
</li>