Polishing tool for processing optical surfaces
AssigneeCarl Zeiss Vision GmbH
InventorsGerd Nowak, Michael Zaiser
Life of this patent
Estimating the term…
Abstract
A polishing tool for processing an optical surface of a spectacle lens, having a carrier body and a polishing film, an elastic layer being arranged between said polishing film and said carrier body. Further, there is provision for a surface of said polishing film, which surface is active during processing, to decrease in size in an edge region of said polishing film outwards in said radial direction. Furthermore, an apparatus is provided for polishing an optical surface of a spectacle lens having a polishing tool as described above.
Claims13
A polishing tool for processing an optical surface of a spectacle lens, having a carrier body and a polishing film, an elastic layer being arranged between said polishing film and said carrier body, wherein said polishing film has an edge region, wherein said edge region is delimited inwards in a radial direction by a base circle, wherein a plurality of edge elements extend outwards in said radial direction from said base circle, wherein a surface of said polishing film, which surface is active during processing, decreases in size in said edge region of said polishing film outwards in said radial direction, and wherein said surface of said polishing film, which surface is active during processing, decreases continuously in size down to zero in said edge region of said polishing film outwards in said radial direction.
An apparatus for polishing an optical surface of a spectacle lens having a polishing tool for processing an optical surface of a spectacle lens, the polishing tool having a carrier body and a polishing film, an elastic layer being arranged between said polishing film and said carrier body, wherein said polishing film has an edge region, wherein said edge region is delimited inwards in a radial direction by a base circle, wherein a plurality of edge elements extend outwards in said radial direction from said base circle, wherein a surface of said polishing film, which surface is active during processing, decreases in size in said edge region of said polishing film outwards in said radial direction, and wherein said surface of said polishing film, which surface is active during processing, decreases continuously in size down to zero in said edge region of said polishing film outwards in said radial direction.
Dependencies are inferred from the claim text.