ableitbar

English translation: differentiable

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
German term or phrase:ableitbar
English translation:differentiable
Entered by: Heike Holthaus

15:18 Jan 24, 2018
German to English translations [PRO]
Tech/Engineering - Medical: Instruments / Eyeglass lenses
German term or phrase: ableitbar
....dass eine Fläche mit reduzierten Oberflächenunterschieden, insbesondere eine **kontinuierliche ableitbare Fläche**, erzielt wird.

Context: Patent on manufacturing eyeglass lenses. Something (sorry, have to be vague) is applied to the lens blank to even out surface differences to achieve a "continuous ????? surface. The purpose is to reduce stresses during/after processing the lens.

TIA

Heike
Heike Holthaus
United States
Local time: 00:37
differentiable
Explanation:
https://books.google.de/books?id=8YbbAAAAMAAJ&q="ableitbar" ...
(not derivable, here: differentiable)

https://math.stackexchange.com/questions/1117323/the-definit...
From: https://en.wikipedia.org/wiki/Smoothness#Differentiability_c... : a continuously differentiable function is a continuous function whose derivative exists.

All lenses are continuously differentiable! It's not a functioning lens until this is achieved

There is some evidence for the use of "continuously differentiable" relating to lenses on google patents, although I tend to take those with a pinch of salt (e.g. http://www.google.ch/patents/CA1223142A?cl=en
https://www.google.com/patents/US5137343)

You can also see mathematical papers on lens design that refer to the (twice) "continuously differentiable" property e.g. https://arxiv.org/pdf/0704.1059.pdf

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Note added at 4 hrs (2018-01-24 19:27:33 GMT)
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Also this question on lenses is essentially synonymous (except for the zweimal which yours doesn't mention) https://www.proz.com/kudoz/german_to_english/other/631537-zw...
Selected response from:

Mair A-W (PhD)
Germany
Local time: 06:37
Grading comment
Thank you
4 KudoZ points were awarded for this answer



Summary of answers provided
4 +2differentiable
Mair A-W (PhD)


Discussion entries: 5





  

Answers


2 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +2
differentiable


Explanation:
https://books.google.de/books?id=8YbbAAAAMAAJ&q="ableitbar" ...
(not derivable, here: differentiable)

https://math.stackexchange.com/questions/1117323/the-definit...
From: https://en.wikipedia.org/wiki/Smoothness#Differentiability_c... : a continuously differentiable function is a continuous function whose derivative exists.

All lenses are continuously differentiable! It's not a functioning lens until this is achieved

There is some evidence for the use of "continuously differentiable" relating to lenses on google patents, although I tend to take those with a pinch of salt (e.g. http://www.google.ch/patents/CA1223142A?cl=en
https://www.google.com/patents/US5137343)

You can also see mathematical papers on lens design that refer to the (twice) "continuously differentiable" property e.g. https://arxiv.org/pdf/0704.1059.pdf

--------------------------------------------------
Note added at 4 hrs (2018-01-24 19:27:33 GMT)
--------------------------------------------------

Also this question on lenses is essentially synonymous (except for the zweimal which yours doesn't mention) https://www.proz.com/kudoz/german_to_english/other/631537-zw...

Mair A-W (PhD)
Germany
Local time: 06:37
Native speaker of: Native in EnglishEnglish
PRO pts in category: 4
Grading comment
Thank you

Peer comments on this answer (and responses from the answerer)
agree  Anne Schulz
14 hrs

agree  Wendy Robinson
17 hrs
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