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Assessment of toroidal surfaces by the measurement of curvature in three fixed meridians
Author(s) -
Fowler C.W.
Publication year - 1989
Publication title -
ophthalmic and physiological optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.147
H-Index - 66
eISSN - 1475-1313
pISSN - 0275-5408
DOI - 10.1111/j.1475-1313.1989.tb00812.x
Subject(s) - toroid , curvature , optics , surface (topology) , orientation (vector space) , physics , lens (geology) , geometry , mathematics , plasma , quantum mechanics
A method is described where the surface curvatures and axis orientation of a toroidal surface can be determined by measuring the lens in three fixed orientations. This method also has possible applications in the measurement of progressive addition lenses.