MANDREL FOR USE IN THE MACHINING OF OPHTHALMIC LENSES

A mandrel (1) for holding an ophthalmic lens member blank (52) during machining is disclosed. The mandrel (1) comprises a front surface (6) for receiving an ophthalmic lens member blank (52) to be machined; a rear surface (8) opposite the front surface (6); and one or more through-holes (10) extendi...

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Hauptverfasser: RICKETTS David, EVANS Edward James Harley
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creator RICKETTS David
EVANS Edward James Harley
description A mandrel (1) for holding an ophthalmic lens member blank (52) during machining is disclosed. The mandrel (1) comprises a front surface (6) for receiving an ophthalmic lens member blank (52) to be machined; a rear surface (8) opposite the front surface (6); and one or more through-holes (10) extending between the front and rear surfaces (6,8). In use, wax applied to the rear surface (8) contacts an ophthalmic lens member blank (52) received on the front surface 6 via said one or more through-holes (10). Methods of producing an ophthalmic lens using such a mandrel and lenses produced using such a mandrel are also disclosed. Se describe un mandril 1 para sujetar un miembro de lente oftálmica en bruto 52 durante el mecanizado. El mandril 1 que comprende una superficie frontal 6 para recibir un miembro de lente oftálmica en bruto 52 para ser mecanizado; una superficie posterior 8 opuesta a la superficie frontal 6; y uno o más orificios pasantes 10 que se extienden entre las superficie frontal y posterior 6, 8. En uso, la cera aplicada a la superficie posterior 8 entra en contacto con un miembro de lente oftálmica en bruto 52 recibido en la superficie frontal 6 a través de uno o más orificios pasantes 10. También se revelan los métodos de producción de una lente oftálmica utilizando un mandril de este tipo y las lentes producidas con dicho mandril.
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The mandrel (1) comprises a front surface (6) for receiving an ophthalmic lens member blank (52) to be machined; a rear surface (8) opposite the front surface (6); and one or more through-holes (10) extending between the front and rear surfaces (6,8). In use, wax applied to the rear surface (8) contacts an ophthalmic lens member blank (52) received on the front surface 6 via said one or more through-holes (10). Methods of producing an ophthalmic lens using such a mandrel and lenses produced using such a mandrel are also disclosed. Se describe un mandril 1 para sujetar un miembro de lente oftálmica en bruto 52 durante el mecanizado. El mandril 1 que comprende una superficie frontal 6 para recibir un miembro de lente oftálmica en bruto 52 para ser mecanizado; una superficie posterior 8 opuesta a la superficie frontal 6; y uno o más orificios pasantes 10 que se extienden entre las superficie frontal y posterior 6, 8. En uso, la cera aplicada a la superficie posterior 8 entra en contacto con un miembro de lente oftálmica en bruto 52 recibido en la superficie frontal 6 a través de uno o más orificios pasantes 10. 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The mandrel (1) comprises a front surface (6) for receiving an ophthalmic lens member blank (52) to be machined; a rear surface (8) opposite the front surface (6); and one or more through-holes (10) extending between the front and rear surfaces (6,8). In use, wax applied to the rear surface (8) contacts an ophthalmic lens member blank (52) received on the front surface 6 via said one or more through-holes (10). Methods of producing an ophthalmic lens using such a mandrel and lenses produced using such a mandrel are also disclosed. Se describe un mandril 1 para sujetar un miembro de lente oftálmica en bruto 52 durante el mecanizado. El mandril 1 que comprende una superficie frontal 6 para recibir un miembro de lente oftálmica en bruto 52 para ser mecanizado; una superficie posterior 8 opuesta a la superficie frontal 6; y uno o más orificios pasantes 10 que se extienden entre las superficie frontal y posterior 6, 8. 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The mandrel (1) comprises a front surface (6) for receiving an ophthalmic lens member blank (52) to be machined; a rear surface (8) opposite the front surface (6); and one or more through-holes (10) extending between the front and rear surfaces (6,8). In use, wax applied to the rear surface (8) contacts an ophthalmic lens member blank (52) received on the front surface 6 via said one or more through-holes (10). Methods of producing an ophthalmic lens using such a mandrel and lenses produced using such a mandrel are also disclosed. Se describe un mandril 1 para sujetar un miembro de lente oftálmica en bruto 52 durante el mecanizado. El mandril 1 que comprende una superficie frontal 6 para recibir un miembro de lente oftálmica en bruto 52 para ser mecanizado; una superficie posterior 8 opuesta a la superficie frontal 6; y uno o más orificios pasantes 10 que se extienden entre las superficie frontal y posterior 6, 8. En uso, la cera aplicada a la superficie posterior 8 entra en contacto con un miembro de lente oftálmica en bruto 52 recibido en la superficie frontal 6 a través de uno o más orificios pasantes 10. También se revelan los métodos de producción de una lente oftálmica utilizando un mandril de este tipo y las lentes producidas con dicho mandril.</abstract><oa>free_for_read</oa></addata></record>
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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 MANDREL FOR USE IN THE MACHINING OF OPHTHALMIC LENSES
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