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SIMPLIFIED FORMULLAE FOR THE CALCULATION OF VERTEX POWER SURFACES

 

作者: G. WESTHEINIER,  

 

期刊: The Australasian Journal of Optometry  （WILEY Available online 1951）
卷期: Volume 34, issue 1  

页码: 9-11

 

ISSN:0817-881X

 

年代: 1951

 

DOI:10.1111/j.1444-0938.1951.tb01244.x

 

出版商: Blackwell Publishing Ltd

 

数据来源: WILEY

 

摘要:

SUMMARYSimplified formulae are given to calculate the correct surface powers for back vertex power spectacle lenses. They have been derived by permissible approximations from the well‐known thick‐lens formulae. Examples are given to demonstrate their application to spherical lenses and to cylindrical lenses with both positive and negative base cur

 

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