PROCESS OF PREPARING LENSES

A process of preparing a lens 1 uses a de-blocking step to remove the lens 1 from a wax mount 7. In the de-blocking step the wax 7 is only partially dissolved so that the lens remains associated with the wax but can be easily removed therefrom. For the de-blocking step, the wax is treated with a ter...

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Hauptverfasser: TOMNEY, JOHN, SIDHU, JOTINDERPAL, SINGH
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Sprache:eng ; fre ; ger
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creator TOMNEY, JOHN
SIDHU, JOTINDERPAL, SINGH
description A process of preparing a lens 1 uses a de-blocking step to remove the lens 1 from a wax mount 7. In the de-blocking step the wax 7 is only partially dissolved so that the lens remains associated with the wax but can be easily removed therefrom. For the de-blocking step, the wax is treated with a terpene under conditions of agitation.
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In the de-blocking step the wax 7 is only partially dissolved so that the lens remains associated with the wax but can be easily removed therefrom. 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subjects DRESSING OR CONDITIONING OF ABRADING SURFACES
FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
GRINDING
MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING
PERFORMING OPERATIONS
POLISHING
PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
title PROCESS OF PREPARING LENSES
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