Invention Grant
- Patent Title: Lens edging system, edging size management device, edging size management method and method of manufacturing spectacle lens
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Application No.: US14443482Application Date: 2013-11-01
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Publication No.: US09962803B2Publication Date: 2018-05-08
- Inventor: Takahiro Suzue , Tsukasa Sato
- Applicant: HOYA CORPORATION
- Applicant Address: JP Tokyo
- Assignee: HOYA CORPORATION
- Current Assignee: HOYA CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2012-257125 20121126
- International Application: PCT/JP2013/079669 WO 20131101
- International Announcement: WO2014/080738 WO 20140530
- Main IPC: B24B9/14
- IPC: B24B9/14 ; B24B49/02
Abstract:
A lens edging system includes: an edger configured to perform edging to a spectacle lens in accordance with three-dimensional edging locus data obtained from edging shape data by calculation; a three-dimensional circumferential length measurement device configured to measure a circumferential length of the spectacle lens edged by the edger; and an edging size management device configured to correct a calculation parameter used for calculating the edging locus data, based on a difference between a measured circumferential length obtained by a three-dimensional circumferential length measurement device, and a theoretical circumferential length obtained by calculation.
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