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Title:
BEVEL-EDGING SYSTEM OF SPECTACLE LENS
Document Type and Number:
Japanese Patent JP2011101946
Kind Code:
A
Abstract:

To always supply a spectacle lens of a properly finished circumference size by controlling a difference between a lens edge circumference of a spectacle frame and an edged lens circumference to be always within a prescribed range.

A method of supplying the spectacle lens by bevel-edging an uncut spectacle lens based on specified lens edge shape data of the spectacle frame includes a lens edging step S2 to rim-machine the spectacle lens based on the lens edge shape data and a prescribed edging condition of the spectacle frame, a lens circumference measuring step S3 to measure the circumference of the spectacle lens bevel-edged by the lens edging step, a circumference difference calculating step S4 to calculate a difference between the lens circumference obtained by the lens circumference measuring step and the lens edge circumference of the spectacle frame, and correcting steps S5 to S11 to correct circumference correction values stored at each edging condition so as to put the circumferential difference within a prescribed range.


Inventors:
INOGUCHI MASAAKI
Application Number:
JP2011002884A
Publication Date:
May 26, 2011
Filing Date:
January 11, 2011
Export Citation:
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Assignee:
HOYA CORP
International Classes:
B24B9/14; B24B49/02; B24B49/04; G02C7/02; G02C13/00
Domestic Patent References:
JPH10249693A1998-09-22
JPH0413539A1992-01-17
JPH0674733A1994-03-18
JPH10249693A1998-09-22
JPH0413539A1992-01-17
JPH0674733A1994-03-18
Attorney, Agent or Firm:
Aniya Setsuo
Toru Yui
Hitoshi Kiyono
Fukuoka Masahiro
Okuyama Tomohiro