Patent ID: 9557577
Date: 2017-01-31
CPC Classifications: B24B,G02C

Claim:
1. A method for preparing an ophthalmic lens to be fitted into a rim of a spectacle frame, comprising: an operation for determining the two-dimensional geometry of a surround profile of said rim; a centering operation in which said surround profile is centered in a frame of reference related to the ophthalmic lens; an operation for acquiring the geometry of at least one portion of an optical face of the ophthalmic lens by overlaying the surround profile of the rim on the optical face of the lens and by contact or contactless probing of said surround profile as overlaid on said optical face of the ophthalmic lens; an operation for determining instructions for processing of the ophthalmic lens depending on the geometry and position of the surround profile in the frame of reference related to the ophthalmic lens, and depending on the geometry of said portion of said optical face of the ophthalmic lens; and an operation for processing the ophthalmic lens according to said processing instructions, wherein said acquiring operation comprises: and wherein said processing instructions are determined depending on the three-dimensional coordinates of said measuring points.