TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
FLUJO FOTON [2 records]
Record 1 - internal organization data 2017-05-09
Record 1, English
Record 1, Subject field(s)
- Metrology and Units of Measure
- Optics
- Electromagnetic Radiation
Record 1, Main entry term, English
- photon flux density
1, record 1, English, photon%20flux%20density
correct
Record 1, Abbreviations, English
- PFD 2, record 1, English, PFD
correct
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
The objectives of the study were (a) to characterize the range of photosynthetic responses in ten species of the Dipterocarpaceae and (b) to elucidate those photosynthetic characteristics that might provide a basis for niche partitioning. Seedlings were acclimatized (about 7 months) in three light environments; understorey, partial shade and a gap (140 m2). The light environments represented a gradation in median diurnal (0630-1830 hours) photon flux density (PFD) ranging from understorey ..., through partial shade ... to gap ... Integrated diurnal PFD were in the sequence gap > partial shade > understorey (15.2, 4.7, 1.3 mol m-2 day-1, respectively). 2, record 1, English, - photon%20flux%20density
Record 1, French
Record 1, Domaine(s)
- Unités de mesure et métrologie
- Optique
- Rayonnements électromagnétiques
Record 1, Main entry term, French
- densité de flux photonique
1, record 1, French, densit%C3%A9%20de%20flux%20photonique
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- éclairement photonique 2, record 1, French, %C3%A9clairement%20photonique
masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Quotient du nombre de photon par unités de temps et par unité de surface. 1, record 1, French, - densit%C3%A9%20de%20flux%20photonique
Record number: 1, Textual support number: 2 DEF
[...] densité de flux de photons reçu par unité de surface. 2, record 1, French, - densit%C3%A9%20de%20flux%20photonique
Record number: 1, Textual support number: 1 OBS
Il [éclairement photonique] s'exprime en mole de photons par mètre carré et par seconde : [mol/s/m2 ou Einstein/s/m2] 2, record 1, French, - densit%C3%A9%20de%20flux%20photonique
Record number: 1, Textual support number: 2 OBS
Les mesures photoniques sont basées sur la quantité de photons qui constituent les radiations mesurées. L'unité de base est la mole de photons aussi nommée Einstein qui correspond au nombre d'Avogadro (6,02.1023) de photon. 1, record 1, French, - densit%C3%A9%20de%20flux%20photonique
Record number: 1, Textual support number: 3 OBS
Lorsque les photons sont mesurés dans le PAR, on parle alors d'éclairement photonique photosynthétique ou densité de flux photonique photosynthétique (photosynthetic photon flux density, PPFD) 1, record 1, French, - densit%C3%A9%20de%20flux%20photonique
Record number: 1, Textual support number: 4 OBS
Pour les végétaux, on définit l'éclairement photosynthétiquement actif (PAR) ou éclairement photonique dans la gamme de longueur d'onde 350-750 nanomètres. Cet éclairement tient compte, non pas de la courbe de sensibilité spectrale de l'œil comme l'éclairement lumineux, mais de la courbe du spectre d'action des radiations sur la photosynthèse. Seul l'éclairement énergétique est une donnée réellement objective; l'efficacité réelle des éclairements lumineux et photosynthétiquement actif dépend en fait de paramètres biologiques qui peuvent varier notablement d'un individu à l'autre et même au cours du temps. 2, record 1, French, - densit%C3%A9%20de%20flux%20photonique
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Metrología y unidades de medida
- Óptica
- Radiación electromagnética
Record 1, Main entry term, Spanish
- densidad de flujo de fotón
1, record 1, Spanish, densidad%20de%20flujo%20de%20fot%C3%B3n
feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2001-06-14
Record 2, English
Record 2, Subject field(s)
- Metrology and Units of Measure
- Optics
- Electromagnetic Radiation
Record 2, Main entry term, English
- photon flux
1, record 2, English, photon%20flux
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Photochemical smog: ... This process is powered by sunlight and some of the products, such as ozone, reach a peak soon after photon flux from the sun reaches a maximum around midday. The thermal inversions often associated with some cities can lead to a dangerous buildup of smog in urban areas. 1, record 2, English, - photon%20flux
Record 2, French
Record 2, Domaine(s)
- Unités de mesure et métrologie
- Optique
- Rayonnements électromagnétiques
Record 2, Main entry term, French
- flux photonique
1, record 2, French, flux%20photonique
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
(mol/s ou Einstein/s) : Quantité de photons générés par une source par unité de temps. 1, record 2, French, - flux%20photonique
Record number: 2, Textual support number: 1 OBS
Les mesures photoniques sont basées sur la quantité de photons qui constituent les radiations mesurées. L'unité de base est la mole de photons aussi nommée Einstein qui correspond au nombre d'Avogadro (6,02.1023) de photon. 1, record 2, French, - flux%20photonique
Record number: 2, Textual support number: 2 OBS
Lorsque les photons mesurés sont compris uniquement entre 400 et 700 (PAR) on parle alors du flux photonique photosynthétique. 1, record 2, French, - flux%20photonique
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Metrología y unidades de medida
- Óptica
- Radiación electromagnética
Record 2, Main entry term, Spanish
- flujo de fotón
1, record 2, Spanish, flujo%20de%20fot%C3%B3n
masculine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2025
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.
Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.
Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.
- Date Modified: