MX9206842A - PROCEDURE FOR THE PRODUCTION OF POLYMERIC BIFOCAL LENSES. - Google Patents

PROCEDURE FOR THE PRODUCTION OF POLYMERIC BIFOCAL LENSES.

Info

Publication number
MX9206842A
MX9206842A MX9206842A MX9206842A MX9206842A MX 9206842 A MX9206842 A MX 9206842A MX 9206842 A MX9206842 A MX 9206842A MX 9206842 A MX9206842 A MX 9206842A MX 9206842 A MX9206842 A MX 9206842A
Authority
MX
Mexico
Prior art keywords
lens
mold
preform
polymeric
procedure
Prior art date
Application number
MX9206842A
Other languages
Spanish (es)
Inventor
Metthew John Cuthbertson
Philip Horley Squires
Original Assignee
Pilkington Visioncare Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pilkington Visioncare Inc filed Critical Pilkington Visioncare Inc
Priority to MX9206842A priority Critical patent/MX9206842A/en
Publication of MX9206842A publication Critical patent/MX9206842A/en

Links

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

La invención se refiere a un procedimiento para producción de lentes bifocales poliméricos que incluye las etapas de elegir una preforma de lente o lentes de visión simple con una superficie convexa, y un molde bifocal con un radio menor de curvatura; erosionar suavemente la superficie convexa de la preforma de lente o lente; ensamblar el molde y la preforma de lente o lente, con monómero catalizado entre el molde y la preforma de lente o lente; sostener la preforma de lente o lente y el molde en posición entre sí, de manera tal que la preforma de lente o lente contacto al molde.The invention relates to a method of producing polymeric bifocal lenses that includes the steps of choosing a single vision lens or lens preform with a convex surface, and a bifocal mold with a smaller radius of curvature; Gently erode the convex surface of the lens or lens preform; assembling the mold and the lens or lens preform, with catalyzed monomer between the mold and the lens or lens preform; holding the lens or lens preform and the mold in position with each other, such that the lens or lens preform contacts the mold.

MX9206842A 1992-11-27 1992-11-27 PROCEDURE FOR THE PRODUCTION OF POLYMERIC BIFOCAL LENSES. MX9206842A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MX9206842A MX9206842A (en) 1992-11-27 1992-11-27 PROCEDURE FOR THE PRODUCTION OF POLYMERIC BIFOCAL LENSES.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MX9206842A MX9206842A (en) 1992-11-27 1992-11-27 PROCEDURE FOR THE PRODUCTION OF POLYMERIC BIFOCAL LENSES.

Publications (1)

Publication Number Publication Date
MX9206842A true MX9206842A (en) 1994-05-31

Family

ID=19744422

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9206842A MX9206842A (en) 1992-11-27 1992-11-27 PROCEDURE FOR THE PRODUCTION OF POLYMERIC BIFOCAL LENSES.

Country Status (1)

Country Link
MX (1) MX9206842A (en)

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