Spectacle lenses and third-order distortion
Third-order formulae are developed for calculation of distortion in thin spectacle lenses, when one or both surfaces are conicoid aspherics. Solutions which allow correction of rotatory or peripheral distortion, when one lens surface is a conicoid aspheric, are illustrated. A study of these solutions shows that one of the off-axis power errors (e.g. oblique astigmatism) and one of the distortions can be simultaneously eliminated, but the lens forms required are too curved to be cosmetically feasible.
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|Item Type:||Journal Article|
|Additional Information:||For more information or for a copy of this article contact: David A. Atchison email@example.com|
|Keywords:||spectacle lenses, third, order distortion, conicoid surfaces, aspheric lenses, off, axis power errors|
|Subjects:||Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300)|
|Divisions:||Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
|Copyright Owner:||Copyright 1987 Blackwell Publishing|
|Deposited On:||17 Aug 2006|
|Last Modified:||15 Jan 2009 07:08|
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