PROCEDE D'ELABORATION D'UNE CONSIGNE DE DETOURAGE D'UNE LENTILLE OPHTALMIQUE

The method involves correcting shape of a projected longitudinal profile (52) so as to equalize perimeter length of the profile with perimeter length of an acquired longitudinal profile (50). A trimming instruction is deducted from a corrected longitudinal profile (53). The correction step is perfor...

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Bibliographic Details
Main Authors BELLONI ERIC, BITON JEREMIE, DUBOIS FREDERIC, FRESON DAVID
Format Patent
LanguageFrench
Published 07.10.2011
Subjects
CONTACT LENSES
DRESSING OR CONDITIONING OF ABRADING SURFACES
FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
GRINDING
MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING
OPTICS
PERFORMING OPERATIONS
PHYSICS
POLISHING
SPECTACLES
SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES
TRANSPORTING
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Summary:The method involves correcting shape of a projected longitudinal profile (52) so as to equalize perimeter length of the profile with perimeter length of an acquired longitudinal profile (50). A trimming instruction is deducted from a corrected longitudinal profile (53). The correction step is performed by stretching the longitudinal profile according to a given mathematical function, the projected profile along an ordinate axis (Y2) transverse to a horizontal axis (X2) and by compressing the stretched longitudinal profile along the horizontal axis orthogonal to the ordinate axis.
Bibliography:Application Number: FR20090004384