Multi Part Blocking Piece

a multi-part, blocking piece technology, applied in the direction of optical surface grinding machines, other domestic objects, manufacturing tools, etc., can solve the problems of single throw away parts that cannot be recycled, prone to environmental problems, etc., to achieve the effect of reducing environmental impact, high optical quality, and reducing cos

Inactive Publication Date: 2014-11-06
SATISLOH AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0022]The object of the present invention is to provide a blocking piece for holding an optical workpiece, in particular a spectacle lens, for processing thereof, which blocking piece serves to solve the drawbacks previously cited of the techniques known in the art and enables in particular spectacle lenses with high optical qualities to be produced with smaller impact to the environment and at lower cost, without restrictions as to the lens geometries usually processed in prescription workshops while allowing a universal use during the entire process that may include vacuum deposition, spin coating together with the usual lathing, grinding or milling=generating and polishing steps. The object of the invention further encompasses the provision of a set of blocking pieces as well as of a method for manufacturing spectacle lenses using such a blocking piece or set of blocking pieces. Obviously the blocking piece should preferably be compatible with existing machining equipment.

Problems solved by technology

However, such a single throw away part cannot be recycled.
Alternatively the most usual concept of having a base portion made of hard metal with a lens supporting part made of a specific low temperature melting alloy is prone to environmental issues as well.

Method used

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Embodiment Construction

[0057]The preferred embodiment of the present invention will now be described in more detail, wherein it is to be noted that the following description is given for illustrative purposes, only and not with the intention to restrict the scope of protection to any of the illustrated and discussed preferred embodiments. In particular, the person skilled in the art will be well aware that any single feature described in detail with respect to one preferred embodiment could also be used separately from features described in the same embodiment or in combination with features of another embodiment. Furthermore, it should be understood that all given indicia as to material choices, sizes, measures and the like are as well to be considered as examples only, and if any of them would prove to be an essential feature again such feature should be considered as distinguishing if taken separately or in conjunction with other features described herein, irrespective as to whether such feature combin...

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Abstract

The invention refers to a blocking piece, comprising at least two parts, at least one part being designed for multiple use and at least one part being designed for single use, wherein a surface for supporting one face of an optical article to be blocked is constituted at least in part by the reusable part and at least in part by the single use part.

Description

CROSS-REFERENCE TO PATENT APPLICATIONS[0001]The present application is related to U.S. patent application Ser. No. 14 / 281,141, entitled Multimaterial Block Piece, and filed on May 2, 2014. The entire disclosure of the foregoing application is incorporated herein by reference.[0002]The entire content of the foregoing application is incorporated herein by reference.TECHNICAL FIELD OF THE INVENTION[0003]The present invention generally relates to a workpiece support block (“blocking piece”) for supporting an optical workpiece during the processing thereof. In particular, the invention relates to a blocking piece for holding a spectacle lens for processing thereof, as used in prescription workshops in masses, that is to say production workshops for manufacturing individual spectacle lenses from customary materials (mineral glass, polycarbonate, PMMA, CR 39, HI index, etc.) according to a prescription. The invention also concerns a set of blocking pieces and a method for manufacturing spe...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B24B13/005
CPCB24B13/005B24B9/146B29D11/00942
Inventor SAVOIE, MARC
Owner SATISLOH AG
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