BIFOCAL SPECTACLE LENS, COMPUTER IMPLEMENTED METHOD FOR CREATING A NUMERICAL REPRESENTATION OF SAME, COMPUTER PROGRAM, DATA PROCESSING SYSTEM, AND NON-VOLATILE COMPUTER READABLE STORAGE MEDIUM

BIFOCAL SPECTACLE LENS, COMPUTER IMPLEMENTED METHOD FOR CREATING A NUMERICAL REPRESENTATION OF SAME, COMPUTER PROGRAM, DATA PROCESSING SYSTEM, AND NON-VOLATILE COMPUTER READABLE STORAGE MEDIUM

A bifocal spectacle lens (1) and a method for creating a numerical representation of a bifocal spectacle lens (1) are made available. The bifocal spectacle lens (1) comprises a distance portion (3), a near portion (5) and a transition section (7) situated between the distance portion (3) and the nea...

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Hauptverfasser: WELSCHER, Markus, SPRATT, Ray Steven
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CONTACT LENSES
OPTICS
PHYSICS
SPECTACLES
SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES
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creator WELSCHER, Markus
SPRATT, Ray Steven
description A bifocal spectacle lens (1) and a method for creating a numerical representation of a bifocal spectacle lens (1) are made available. The bifocal spectacle lens (1) comprises a distance portion (3), a near portion (5) and a transition section (7) situated between the distance portion (3) and the near portion (5). The distance portion (3) is optimized in view of optical power for distance vision and the near portion (5) is optimized in view of optical power for near vision. The transition section (7) is determined in such a way that the latter creates a continuous transition between the distance portion (3) and the near portion (5). The distance portion (3) and the near portion (5) are optimized independently of one another and put together with the transition section (7) to form the numerical representation of the bifocal spectacle lens (1). The transition section is determined by providing an overlap region between the distance portion and the near portion where a surface of the overlap region is a linear combination of a surface of the distance portion and a surface of the near portion in the overlap region.
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subjects CONTACT LENSES
OPTICS
PHYSICS
SPECTACLES
SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES
title BIFOCAL SPECTACLE LENS, COMPUTER IMPLEMENTED METHOD FOR CREATING A NUMERICAL REPRESENTATION OF SAME, COMPUTER PROGRAM, DATA PROCESSING SYSTEM, AND NON-VOLATILE COMPUTER READABLE STORAGE MEDIUM
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