Höhenprisma mit Basis

English translation: base-up prism

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
German term or phrase:Höhenprisma mit Basis
English translation:base-up prism

20:19 Feb 8, 2004
German to English translations [PRO]
Science - Other / optical
German term or phrase: Höhenprisma mit Basis
This term appears in a document pertaining to multifocal, progressive lenses. It is in the second sentence of the following paragraph:
In dem Dokument ist unter der Bezeichnung "leichte Ausfuehrung" ein Verfahren beschrieben, welches zu einer Gewichtsreduktion fuehrt. Hierbei werden durch Einschliff eines Höhenprismas mit Basis (d.h. 270 degree Basisprisma) unten auf beide Glaeser eines Glaeserpaars sogenannte Dickenreduktionsprismen ausgebildet. welche die Mitten- bzw. Randdicken vermindern. Auf dies Weise koennen bei Konvexglaesern mit Additionen von ueber 2 Dioptrien bis zu 25% Gewichtsminderung erzielt werden.
Dr. Fred Thomson
United States
Local time: 08:26
base-up prism
Explanation:
... to reduce the weight of the lenses, a base-up prism is ground into the back surface of the lens ...
http://www.carlzeiss.com/de/ophtalmic/comp/home_e.nsf/6f2a76...

http://www.pech.com/terms.htm
Selected response from:

ivo zika
Czech Republic
Local time: 16:26
Grading comment
Thank you, Ivo.
2 KudoZ points were awarded for this answer



Summary of answers provided
3 +1base-up prism
ivo zika
2high prismatic base
Karen.H


  

Answers


2 hrs   confidence: Answerer confidence 3/5Answerer confidence 3/5 peer agreement (net): +1
base-up prism


Explanation:
... to reduce the weight of the lenses, a base-up prism is ground into the back surface of the lens ...
http://www.carlzeiss.com/de/ophtalmic/comp/home_e.nsf/6f2a76...

http://www.pech.com/terms.htm

ivo zika
Czech Republic
Local time: 16:26
Native speaker of: Czech
PRO pts in category: 2
Grading comment
Thank you, Ivo.

Peer comments on this answer (and responses from the answerer)
agree  Brandis (X)
5 hrs
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3 hrs   confidence: Answerer confidence 2/5Answerer confidence 2/5
high prismatic base


Explanation:
makes sense

Karen.H
Local time: 15:26
Native speaker of: Native in EnglishEnglish
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