Method of producing a spectacle lens comprising a spherical front side and a progressive rear side

The requirements of the spectacles prescription, comprising spherical or astigmatic or prismatic effect and their distribution on the prescription surface of the spectacles lens are fulfilled. The rear surface of the spectacles lens is a multi-focal surface without point or axis symmetry. The convex...

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Hauptverfasser:	HANSSEN, ADALBERT, HOF, ALBRECHT
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	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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creator	HANSSEN, ADALBERT HOF, ALBRECHT
description	The requirements of the spectacles prescription, comprising spherical or astigmatic or prismatic effect and their distribution on the prescription surface of the spectacles lens are fulfilled. The rear surface of the spectacles lens is a multi-focal surface without point or axis symmetry. The convex spherical front surface of the lens is held, during shaping of the rear surface, on a matching concave spherical surface with circular grooves (Si) connected to a vacuum source. The rear surface of the spectacles lens is so formed that it evolves from the addition of a spherical or toric effect component with a bifocal or trifocal component. An individual optimisation of the dioptric values, e.g. sphere, astigmatism, prism, in all points on the surface of the spectacles lens facing the eye is provided.
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The rear surface of the spectacles lens is a multi-focal surface without point or axis symmetry. The convex spherical front surface of the lens is held, during shaping of the rear surface, on a matching concave spherical surface with circular grooves (Si) connected to a vacuum source. The rear surface of the spectacles lens is so formed that it evolves from the addition of a spherical or toric effect component with a bifocal or trifocal component. 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language	eng ; fre ; ger
recordid	cdi_epo_espacenet_EP2287654B1
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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
title	Method of producing a spectacle lens comprising a spherical front side and a progressive rear side
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