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unidad de superficie (see sentence)

English translation: area unit/surface unit


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GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
Spanish term or phrase:unidad de superficie (see sentence)
English translation:area unit/surface unit
Entered by: baligh
Options:
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13:09 Sep 21, 2008
Spanish to English translations [PRO]
Tech/Engineering - Physics / lighting / window blinds
Spanish term or phrase: unidad de superficie (see sentence)
I really need help with the whole first sentence, it's in a description for a window blind company explaining why window blinds are so important ( in Spain). I don't get what the two parts of the relationship (linked by between) are...:

La intensidad de iluminación denomina la relación entre el flujo de luz que alcanza por unidad de superficie. La unidad es lux. Esta unidad es relevante para la valoración de la zona de trabajo.
Lisa Mann
Local time: 07:20
area unit
Explanation:
see ref.

good luck

--------------------------------------------------
Note added at 8 mins (2008-09-21 13:18:11 GMT)
--------------------------------------------------

it basically means that:

1 lux (illuminance unit) = lumen (luminous flux unit) / area unit (square meter)
Selected response from:

baligh
Grading comment
Thanks a lot
4 KudoZ points were awarded for this answer



Summary of answers provided
5 +3unit of surface areaCinnamon Nolan
5per unit areaxxxmediamatrix
5area unit
baligh
4per surface unitjsalas
3[per] unit of area of the surfaceliz askew
Summary of reference entries provided
liz askew

  

Answers


5 mins   confidence: Answerer confidence 3/5Answerer confidence 3/5
[per] unit of area of the surface


Explanation:
..

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Note added at 7 mins (2008-09-21 13:16:48 GMT)
--------------------------------------------------

Results 11 - 20 of about 411,000 for illumination per surface area. (0.16 seconds)
Search Results

1.
Illumination
The luminous flux per unit area falling on a surface is called the illumination E of the surface, and is measured in lm/m2. A lm/m2 is called a lux, ...
www.du.edu/~jcalvert/optics/lumens.htm - 22k - Cached - Similar pages

liz askew
United Kingdom
Local time: 06:20
Native speaker of: Native in EnglishEnglish
PRO pts in category: 4
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4 mins   confidence: Answerer confidence 5/5
area unit


Explanation:
see ref.

good luck

--------------------------------------------------
Note added at 8 mins (2008-09-21 13:18:11 GMT)
--------------------------------------------------

it basically means that:

1 lux (illuminance unit) = lumen (luminous flux unit) / area unit (square meter)


    Reference: http://en.wikipedia.org/wiki/Lux
baligh
Native speaker of: Native in ArabicArabic, Native in SpanishSpanish
PRO pts in category: 4
Grading comment
Thanks a lot
Notes to answerer
Asker: Area unit is a very good answer, but surface unit is also used in the same context and that's the answer I went for in the end. Thanks a lot!

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13 mins   confidence: Answerer confidence 5/5
por unidad de superficie
per unit area


Explanation:
This is a standard expression used in measurements of radiated energy (heat, light, etc.).

por unidad de superficie
-->
per unit area

xxxmediamatrix
Local time: 01:20
Native speaker of: Native in EnglishEnglish
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45 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5
per surface unit


Explanation:
they're talking about sun hitting a window. The intensity of the light is important. There's a relationship that's important to the blinds-comfort-heat, etc.: so much intensity per unit of surface (of the window)

jsalas
United States
Local time: 01:20
Native speaker of: Native in EnglishEnglish
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58 mins   confidence: Answerer confidence 5/5 peer agreement (net): +3
unit of surface area


Explanation:
Per unit of surface area

"surface area unit" also appears, but with significantly fewer fits in Google.

One lumen represents the total flux of light emitted, equal to the ... and the amount of light received per unit of surface area is measured in lux (1 lux ...
www.unc.edu/~rowlett/units/dictL.html

illuminating said at least one predetermined unit of surface area comprises a light source selected from the group consisting of an LED lamp ...
www.patentstorm.us/patents/5984189/claims.html

Cinnamon Nolan
Spain
Local time: 07:20
Native speaker of: Native in EnglishEnglish

Peer comments on this answer (and responses from the answerer)
agree  Dr. Andrew Frankland
1 hr
  -> Thank you! :)
agree  psicutrinius
2 hrs
  -> Thanks a lot. :->
agree  Wil Hardman
17 hrs
  -> Thanks, Will- :)
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Reference comments


5 mins
Reference

Reference information:
lambert (La or Lb or L)
a CGS unit of luminance. Luminance is the luminous intensity of a surface, measuring the intensity of the light emitted (or reflected) in all directions per unit of area of the surface. One lambert is the luminance of a surface that emits or reflects one lumen per square centimeter. The lambert is a large unit, and practical measurements tend to be in millilamberts (mLa). A geometric calculation shows that a surface area having an intensity of one candela per square meter emits a total light flux of pi lumens per square meter; as a result, one lambert equals 104/pi = 3183.099 candelas per square meter and 1 millilambert equals 3.183 099 candelas per square meter. The lambert honors the German physicist Johann Lambert (1728-1777), who showed that the illuminance of a surface is inversely proportional to the square of the distance from the light source. There has never been agreement on the symbol for the lambert; La is a good choice because it is unlikely to be confused with any other unit symbol.

liz askew
United Kingdom
Native speaker of: Native in EnglishEnglish
PRO pts in category: 4
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Changes made by editors
Sep 26, 2008 - Changes made by baligh:
Created KOG entryKudoZ term => KOG term
Sep 21, 2008 - Changes made by xxxmediamatrix:
Field (specific)Materials (Plastics, Ceramics, etc.) => Physics


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