System and process for edging ophthalmic lenses
AssigneeEssilor International
InventorDavid HERFORT
Life of this patent
Estimating the term…
Abstract
Disclosed is a system for edging ophthalmic lenses, including: a first database table including first data relating to referenced eyewear frames; a second database table including second data relating to corrections to apply to the first data; and a processing unit suitable to calculate an edging setpoint as a function of at least a datum read in the first database table, corrected by a datum read in the second database table, the edging setpoint being suitable to be used by an edging machine to edge an ophthalmic lens along a final outline.
Claims13
System for edging ophthalmic lenses, comprising:
- a first database table including first data relating to referenced eyewear frames, and
- a processing unit suitable to calculate an edging setpoint as a function of at least one of said first data, said edging setpoint being a file that includes the parameters needed by a machine to center or block or edge an ophthalmic lens and that is suitable to be used by the machine enabling the edging of the ophthalmic lens along a final outline,
- wherein said system comprises a second database table including second data relating to corrections to apply to said first data,
- wherein the processing unit is suitable to calculate said edging setpoint as a function of at least one of said first data, corrected by at least one of said second data, and
- wherein the second data comprise various corrective parameters to be applied to corresponding first data.
Method for edging an ophthalmic lens in order to mount it into an eyewear frame, comprising:
- selecting an eyewear frame,
- read in a first database table first data relating to the selected eyewear frame,
- calculating a setpoint as a function of the first data, said setpoint being a file that includes the parameters needed by a machine to center or block or edge an ophthalmic lens
- edging said ophthalmic lens along a final outline, according to said edging setpoint, by means of said machine,
- wherein said method comprises the reading in a second database table of second data relating to the use of said first datum in the local conditions of a machine,
- wherein said setpoint is calculated as a function of the first data corrected by the second data, and
- wherein the second data comprise various corrective parameters to be applied to corresponding first data.
Dependencies are inferred from the claim text.