New range of stand magnifiers based on standardized image position

Combined Optical Industries Ltd. of Slough, UK, have released a new range of illuminated stand magnifiers. These have been designed with a uniform emerging vergence and are specified in terms of equivalent power according to the new standards. This paper describes these magnifiers in terms of their...

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Bibliographic Details
Published inOphthalmic & physiological optics Vol. 14; no. 4; p. 419
Main Author Rumney, N J
Format Journal Article
LanguageEnglish
Published England 01.10.1994
Subjects
Equipment Design
Humans
Lenses - standards
Optics and Photonics
Presbyopia - rehabilitation
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Summary:Combined Optical Industries Ltd. of Slough, UK, have released a new range of illuminated stand magnifiers. These have been designed with a uniform emerging vergence and are specified in terms of equivalent power according to the new standards. This paper describes these magnifiers in terms of their measured optical and ergonomic properties. The expected enlargement ratios achieved with typical presbyopic additions are tabulated.
ISSN:0275-5408
DOI:10.1111/j.1475-1313.1994.tb00135.x