Spectacle lens manufacturing method and spectacle lens manufacturing system
First Claim
1. A spectacle lens manufacturing method manufacturing a spectacle lens based on order information including spectacle frame information, a prescription value, and layout information, comprising the steps of:
- forming a lens member to obtain the lens member by forming a curved surface shape satisfying an optical specification of the spectacle lens related to an order on a plastic material; and
edging to process the lens member to be shaped into an edge shape of the spectacle lens related to the order, wherein said lens member forming step is to form a curved surface shape on the plastic material so that a geometric center of the edge shape positions at a processing center or geometric center of the plastic material.
1 Assignment
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Accused Products
Abstract
Aims to reduce the types of blanks such as a semi-finished lens blank, materials, and processing time.
A spectacle lens design device 201 disposed at a factory 200 on a manufacturing side and a lens processing device connected thereto block an applicable semi-finished lens blank or lens blank so that a reference surface thereof tilts at a predetermined angle using a numerical-control curve generator based on order information sent from an order terminal 101 disposed at an spectacle store 100 on a order-placement side, and form both surfaces of a plastic material so that a geometric center of an edge shape positions at a center of a circle of a circular lens to thereby satisfy an optical specification of the spectacle lens-related to the order, and next, the circular lens is processed to have the edge shape of the spectacle lens-related to the order to thereby obtain the spectacle lens-related to the order.
29 Citations
4 Claims
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1. A spectacle lens manufacturing method manufacturing a spectacle lens based on order information including spectacle frame information, a prescription value, and layout information, comprising the steps of:
- forming a lens member to obtain the lens member by forming a curved surface shape satisfying an optical specification of the spectacle lens related to an order on a plastic material; and
edging to process the lens member to be shaped into an edge shape of the spectacle lens related to the order,wherein said lens member forming step is to form a curved surface shape on the plastic material so that a geometric center of the edge shape positions at a processing center or geometric center of the plastic material. - View Dependent Claims (2, 3)
- forming a lens member to obtain the lens member by forming a curved surface shape satisfying an optical specification of the spectacle lens related to an order on a plastic material; and
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4. A spectacle lens manufacturing system, comprising:
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an order placement-side computer processing and transmitting information required to order a spectacle lens including frame shape information;
a manufacturing-side computer acquiring information required to manufacture the spectacle lens-related to the order by receiving the information transmitted by the order placement-side computer; and
a spectacle lens manufacturing device manufacturing the spectacle lens-related to the order that is processed to have a shape settable in a frame by performing processes including formations of a curved surface and edge shape on a plastic material based on the information acquired by the manufacturing-side computer;
wherein said spectacle lens manufacturing device uses, as the plastic material of a processing target, a lens blank being a partly finished product of which both surfaces are not yet processed to have a curved surface satisfying an ultimate optical specification but have a predetermined surface shape, wherein a processing center of the. lens. blank matches with a frame center of the edge shape to be processed, wherein said spectacle lens manufacturing device selects, out of plural lens blank of different outside diameters and/or lens thicknesses prepared in advance, the lens blank having the outside diameter and/or lens thickness size(s) allowing an appropriate processing for the spectacle lens-related to the order, wherein the selection of the outside diameter of the lens blank is conducted by specifying based on a distance from a frame center to a frame and the spectacle lens-related to the order is manufactured by processing the selected lens blank, and wherein the curved surface formation is performed to both the surfaces of the lens blank selected by the selection.
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Specification