Method for producing spectacle lens and lens processing system
AssigneeSeiko Epson Corporation
InventorMakoto Miyazawa
Life of this patent
Estimating the term…
Abstract
Production information such as an edging mark 31 indicating a region of a lens remaining after edging and reference position marks 32 are depicted in a region, to be cut off by the edging, of a surface of a lens 10 for spectacles. Any production information does not remain on the finished lens 10 after the edging. A lens processing system 100 includes a reference position detecting apparatus (120 and 130) for detecting a reference position of a spectacle lens, and a marking apparatus (170, 160, 150 and 110) for depicting production information of the lens on a specific surface of the spectacle lens on the basis of the reference position information obtained by the reference position detecting apparatus (120 and 130).
Claims8
A method for producing a spectacle lens, comprising:
- an obtaining step of receiving spectacle frame information,
- a step of forming the spectacle lens;
- a marking step of depicting production information of the spectacle lens including an edging mark, which indicates a first region of the lens remaining after an edging matched with an inner peripheral edge of openings of the spectacle frame and is positioned outside the first region of a surface of the spectacle lens in a second region to be cut off by the edging, of a surface of the spectacle lens, on the basis of the spectacle frame information after the step of forming the spectacle lens;
- after the marking step, at least one step selected from the group consisting of a polishing step, a dyeing step, a hard coat formation step and an anti-reflection coating formation step, after which the edging mark remains on the spectacle lens;
- and
- an edging step of cutting the spectacle lens into the shape of the inner peripheral edge of openings of the spectacle frame to remove the second region.
Dependencies are inferred from the claim text.