Glossary entry

French term or phrase:

lumière rasante (science)

English translation:

tangential/oblique light

Added to glossary by Conor McAuley
Jun 28, 2005 10:27
18 yrs ago
8 viewers *
French term

lumière rasante

French to English Art/Literary Art, Arts & Crafts, Painting
"• Photographie en lumière visible, ***lumière rasante***, sous ultra violet et réflectographie
infra rouge"

Lateral light, contrast, I can't quite formulate this one properly.

Field: analysis of old paintings.

Discussion

mportal Jun 28, 2005:
This appears to be about the process of examining old paintings (rather than a description of the paintings).It may, therefore, be a very technical term. Would it be worth emailing/phoning the restoration department at the National Gallery?

Proposed translations

+3
4 mins
Selected

incident/tangential/oblique light

Termium: OBS: The technique consists of illuminating the document to be analysed, in the absence of any ambient light, by means of a thin beam of light practically parallel to its surface, or at a very slight angle (20 degrees).
Peer comment(s):

agree Bianca Jacobsohn : Oblique light sounds right to me. I also see that the Termium definition is in the field of police/optics - maybe this is something to keep in mind?
24 mins
thanks
agree Clare Macnamara
46 mins
thanks
agree Christopher Crockett
3 hrs
thanks
neutral David Vaughn : The others are possible, but "incident light" is definitely wrong. It is used for measuring the light that falls upon a subject, in contrast with the light that is reflected from the subject - a black cat doesn't reflect as much light as a white one.
5 hrs
it's the first term given in Termium for lumière rasante...what else can I say
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4 KudoZ points awarded for this answer. Comment: "Thanks Meri et al."
3 mins
French term (edited): lumi�re rasante

low-angled light

I know nothing about this topic, but I found the translation in my Harper Collins dictionary.
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52 mins
French term (edited): lumi�re rasante

grazing light

ref.
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+2
1 hr
French term (edited): lumi�re rasante

raking light

light almost parallel to the surface, this is the term

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Note added at 1 hr 4 mins (2005-06-28 11:32:21 GMT)
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http://www.hawkinsonphotography.com/raking.html

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Note added at 1 hr 5 mins (2005-06-28 11:33:17 GMT)
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the above link refers to examining old paintings
Peer comment(s):

agree Christopher Crockett
2 hrs
thanks Christopher!
agree Dr Sue Levy (X) : nice link :-)
4 hrs
thanks Sue!
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5 hrs
French term (edited): lumi�re rasante

side lighting

May not sound very elegant, but this is the common term in English for the more elegant common French term.
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