luminance

(redirected from Luma)
Also found in: Dictionary, Thesaurus, Financial, Acronyms, Encyclopedia, Wikipedia.

lu·mi·nance

(lū'mi-nănts),
The brightness of an object, expressed as the luminous flux per unit solid angle per unit projected area, measured in lamberts or in candelas per square meter.
[L. lumino, to light up, fr. lumen, light]

lu·mi·nance

(lū'mi-năns)
The brightness of an object, expressed as the luminous flux per unit solid angle per unit projected area, measured in lamberts or in candelas per square meter.
[L. lumino, to light up, fr. lumen, light]

luminance

Photometric term characterizing the way in which a surface emits or reflects light in a given direction. It is equal to the luminous intensity measured in a given direction divided by the area of this surface projected on a perpendicular to the direction considered. Symbol: L. Units: candela per square metre (SI unit); footlambert; lambert, etc. See brightness; candela per square metre; footlambert; lambert; lightness; millilambert; nit; photometry; SI unit.
References in periodicals archive ?
In willingly giving up her freedom, Luma, like Susan, is complicit in upholding the regime of phallocentric power, turning her body into a terrain of sexual oppression.
In this study PAM50 classified all TCs and well-differentiated IDCs NST as low-risk molecular subtype (17 LumA and 2 normal breast-like), fitting of the indolent clinical courses observed in these patients.
Young Saudi girl Luma fell into the well while on a trip with her family.
According to Mashable, similar to how Instagram users can add colors, Luma lets users capture and stylize videos by adjusting brightness, contrast and more and they can also add, switch or remove filters once video filming is finished.
Su estrato arboreo esta dominado por Drimys winteri y Amomyrtus luma con alturas maximas de 10 m.
While delivering her presentation on childEoe1/4aos rights, Luma Al Saleh said: Eoe1/4EoHuman rights include all aspects of life, regardless of age, gender, race and religion.Eoe1/4A[yen]
Fair trade hand spun and woven cashmere throw pounds 275 and blanket pounds 375, LUMA, 0845 094 2598, www.lumadirect.com
Bold statement: Haslam Homes' Clarendon showhome at Milfields in County Durham.; Theatrical window dressing: Faux silk stripe eyelet lined curtains pounds 50-pounds 90, Next.; Be my guest: Peruvian organic cotton towels, pounds 63 for a bale, Luma.; Panache: Left, Reactive Terracotta Vase, pounds 20, Debenhams.
Creators of the successful hair trimmers Finishing Touch and Bikini Touch, IdeaVillage is now rolling out Luma Tweeze, the first lighted tweezer with a magnifying lens.
ROCK band Luma is the latest Liverpool group hoping to make a national impression.
The three-year-old hedge, which measures 5 1/2 feet tall, 4 feet wide, and 15 feet long, was started from six 5-gallon plants of Luma apiculata, planted 3 feet apart.
Loopier mise-en-scenes prove even more exciting: In a ramshackle corner of the AMG lot, the stars of Johnny Luma, Linn Ramon, Jim Reno, ca.