Title:
MANUFACTURING METHOD FOR LENS AND LENS HOLDER
Document Type and Number:
WIPO Patent Application WO2010110271
Kind Code:
A1
Abstract:
Provided is a method for reducing the failure to polish a portion of a lens having a radius of curvature of a convex surface shape which varies depending on its position. A lens substrate (40) is obliquely attached to a lens holder (20) so that the distance between a lens reference surface (S1) perpendicular to an edge of the lens substrate (40) used for manufacturing a progressive refractive power lens and a surface (S2) perpendicular to a rotation axis of the lens substrate (40) upon polishing is greater on the short distance area side of the lens substrate than on the long distance area side and is polished.
Inventors:
TAJIMA MAKOTO (JP)
Application Number:
PCT/JP2010/054994
Publication Date:
September 30, 2010
Filing Date:
March 23, 2010
Export Citation:
Assignee:
HOYA CORP (JP)
TAJIMA MAKOTO (JP)
TAJIMA MAKOTO (JP)
International Classes:
B24B13/005; B24B13/04; B24B41/06
Foreign References:
| JP2005224904A | 2005-08-25 | |||
| JPH06335804A | 1994-12-06 | |||
| JPH11198014A | 1999-07-27 |
Attorney, Agent or Firm:
Shin-yu International Patent Firm (JP)
Patent business corporation Nobutomo international patent firm (JP)
Patent business corporation Nobutomo international patent firm (JP)
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