CPC G02C 7/024 (2013.01) [B24B 9/142 (2013.01); B24B 9/144 (2013.01); B24B 13/0055 (2013.01); B24B 49/12 (2013.01); B24B 9/146 (2013.01); B29L 2011/0016 (2013.01)] | 15 Claims |
1. A method for preparing an ophthalmic lens to be edged on the basis of a presentation lens, comprising:
fixing a first support on one of the faces of the presentation lens, the first support having a shape that defines a first reference point,
positioning the presentation lens by means of said first support in an optical machine that comprises an image sensor for acquiring images of the presentation lens,
acquiring, with said image sensor, at least an image of the presentation lens,
determining, on said acquired image, the shape of the outline of the presentation lens,
positioning a pupillary point relative to the outline of the presentation lens,
centering said ophthalmic lens by positioning the outline of the presentation lens relative to the ophthalmic lens so that the pupillary point is superimposed on a centering point of the ophthalmic lens, and
fixing a second support on one of the faces of the ophthalmic lens, the second support having a shape defining a second reference point, the second support being fixed on the ophthalmic lens so that its second reference point is at a predetermined position relative to the first reference point.
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