TERMIUM Plus®

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REFLECTANCE DENSITY [4 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 - external organization data 2009-08-04

English

Subject field(s)
  • Compartment - ISO/IEC JTC 1 Information Technology Vocabulary
Universal entry(ies)
02.02.18 (19762)
ISO/IEC standard entry number
DEF

photometer for measuring reflectance or transmittance optical density [IEC 50(845), 845-05-27]

OBS

A densitometer measures the degree to which light is transmitted through or reflected from a material.

OBS

A calibrated photometer compares the transmitted or reflective light with the incident light, and the result may be displayed as percentage reflectance or density.

OBS

densitometer: term and definition standardized by ISO/IEC [ISO/IEC 19762-2:2008].

French

Spanish

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Record 2 2003-11-17

English

Subject field(s)
  • Optics
DEF

The calculation and measurement of quantities describing light, such as luminous intensity, luminous flux, luminous flux density, light distribution, color, absorption factor, spectral distribution, and the reflectance and the transmittance of light; sometimes taken to include measurement of near-infrared and near-ultraviolet radiation as well as visible light.

French

Domaine(s)
  • Optique
DEF

Partie de la physique qui s'occupe de la mesure des quantités de lumière et des propriétés des corps relatives à la transmission, à la réflexion, à la diffusion, etc., de la lumière.

Spanish

Campo(s) temático(s)
  • Óptica
DEF

Parte de la óptica que trata de las leyes relativas a la intensidad de la luz y de los métodos para medirla.

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Record 3 1998-09-15

English

Subject field(s)
  • Optics
  • Properties of Paper
  • Graphic Arts and Printing
DEF

The colour depth(optical density) of a printed image. It may be measured directly by a user-friendly optical density meter. Measured by colourimeter, it is calculated as the logarithm to the base ten of the ratio of the Y value(the luminous reflectance factor of unprinted paper) to the luminous reflectance factor of the printed paper with an opaque pad of the unprinted paper as background.

French

Domaine(s)
  • Optique
  • Propriétés des papiers
  • Imprimerie et arts graphiques
DEF

Densité optique exprimée par le logarithme du rapport de la réflectance du papier vierge à celle du papier imprimé.

Spanish

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Record 4 1986-01-03

English

Subject field(s)
  • Micrographics
DEF

A method of expressing reflectance in terms of density. If reflectance is R and reflectance density is D, then D=log 10(l/R).

French

Domaine(s)
  • Micrographie
DEF

façon d'exprimer la réflectance par rapport à la densité. Si R est la réflectance et D la densité de réflectance, alors D = log10(1/R).

Spanish

Save record 4

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© Public Services and Procurement Canada, 2026
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
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