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Brightness
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<h2 id="see-also">See also</h2> <ul><li><a href="/facts/Luma_(video)/tepW85uI">Luma (video)</a></li> <li><a href="/facts/Luminance_(relative)/cvSXAI7s">Luminance (relative)</a></li> <li><a href="/facts/Luminosity/1tdhpk9l">Luminosity</a></li></ul> <h2 id="external-links">External links</h2> <p> Media related to brightness at Wikimedia Commons </p> Look up <i>brightness</i> in Wiktionary, the free dictionary. <ul><li><a href="http://www.poynton.com/ColorFAQ.html">Poynton's Color FAQ</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>"Bright Definition & Meaning", Merriam-Webster Dictionary. <a href="http://www.merriam-webster.com/dictionary/bright" target="_blank">http://www.merriam-webster.com/dictionary/bright</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>Robert William Gainer Hunt: Some comments on using the CIECAM97s colour-appearance model <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>“Brightness” in Federal Standard 1037C, the Federal Glossary of Telecommunication Terms (1996) <a href="http://www.its.bldrdoc.gov/fs-1037/dir-005/_0719.htm" target="_blank">http://www.its.bldrdoc.gov/fs-1037/dir-005/_0719.htm</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>"Miscellaneous Symbols and Pictographs" (PDF). Unicode Consortium. 2023. <a href="https://unicode.org/charts/PDF/U1F300.pdf" target="_blank">https://unicode.org/charts/PDF/U1F300.pdf</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>"Shopping for Light Bulbs". United States Federal Trade Commission. Retrieved March 13, 2017. <a href="https://www.consumer.ftc.gov/articles/0164-shopping-light-bulbs" target="_blank">https://www.consumer.ftc.gov/articles/0164-shopping-light-bulbs</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> <li id="fn:6"><p>The symbols in this column denote dimensions; "L", "T" and "J" are for length, time and luminous intensity respectively, not the symbols for the units litre, tesla and joule. <a href="/wiki/Dimensional_analysis#Definition" target="_blank">/wiki/Dimensional_analysis#Definition</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li> <li id="fn:7"><p>Standards organizations recommend that photometric quantities be denoted with a subscript "v" (for "visual") to avoid confusion with radiometric or photon quantities. For example: USA Standard Letter Symbols for Illuminating Engineering USAS Z7.1-1967, Y10.18-1967 <a href="/wiki/Standards_organization" target="_blank">/wiki/Standards_organization</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></p></li> <li id="fn:8"><p>Alternative symbols sometimes seen: W for luminous energy, P or F for luminous flux, and ρ for luminous efficacy of a source. <a href="#fnref:8" class="footnote-back-ref">↩</a></p></li> <li id="fn:9"><p>Alternative symbols sometimes seen: W for luminous energy, P or F for luminous flux, and ρ for luminous efficacy of a source. <a href="#fnref:9" class="footnote-back-ref">↩</a></p></li> <li id="fn:10"><p>Alternative symbols sometimes seen: W for luminous energy, P or F for luminous flux, and ρ for luminous efficacy of a source. <a href="#fnref:10" class="footnote-back-ref">↩</a></p></li> </ol>