Method for manufacturing spectacle lenses according to a prescription

A method for manufacturing spectacle lenses is proposed, comprising the steps of: providing a lens blank (SFB) having a first face (cx) that possesses a final curvature and is coated with an antireflection coating (AR) as an outer layer, a second face (cc), and an edge; blocking with a blocking mate...

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Bibliographische Detailangaben
1. Verfasser:	BREME, FRANK
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY DRESSING OR CONDITIONING OF ABRADING SURFACES FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS GLASS GRINDING JOINING GLASS TO GLASS OR OTHER MATERIALS MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING METALLURGY MINERAL OR SLAG WOOL PERFORMING OPERATIONS POLISHING SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS TRANSPORTING
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Beschreibung
Zusammenfassung:	A method for manufacturing spectacle lenses is proposed, comprising the steps of: providing a lens blank (SFB) having a first face (cx) that possesses a final curvature and is coated with an antireflection coating (AR) as an outer layer, a second face (cc), and an edge; blocking with a blocking material the lens blank with its first face on a block piece; processing the blocked lens blank on the second face and optionally the edge to obtain a processed lens; deblocking the processed lens from the block piece; and applying on top of the first face antireflection coating of the processed lens a top coating TC selected from hydrophobic, oleophobic and dust repelling coatings. This method enables spectacle lenses with high optical qualities to be produced quickly and at low cost, without the risk that the spectacle lens blank unintentionally comes off the block piece during the processing steps.