Method of edging a spectacle lens, spectacle lens edging system and spectacle lens edging program

Patent metadata

Field	Value
Publication number	US-9636795-B2
Application number	US-201313849814-A
Country	US
Kind code	B2
Filing date	Mar 25, 2013
Priority date	Mar 29, 2012
Publication date	May 2, 2017
Grant date	May 2, 2017

Abstract

A controller 240 that gives an instruction of edging a spectacle lens, to a lens edger based on frame shape data outputted from a spectacle frame measuring machine, includes: recognition parts 240 a , 240 b that recognize a positional relation between a groove shape of the spectacle frame whose frame shape data is measured, and a measurement reference point being a reference when measuring the frame shape data, and a positional relation between a beveling instruction reference point being a reference when a beveling instruction is given to the lens edger and a bevel shape obtained by the beveling; and a beveling amount correcting part 240 d that corrects a beveling amount when giving an instruction of beveling to the lens edger based on each positional relation recognized by the recognition parts 240 a , 240 b , so that the bevel shape is fitted into the groove shape.

First claim

What is claimed is:

1. A method of edging a spectacle lens that performs beveling to a spectacle lens using a lens edger based on frame shape data of a spectacle frame; comprising:
recognizing a positional relation between a groove shape of the spectacle frame whose frame shape data is measured and a measurement reference point being a reference when the frame shape data is measured, and a positional relation between a beveling instruction reference point being a reference when the beveling instruction is given to the lens edger and a bevel shape obtained by the beveling;
correcting a beveling amount so that the bevel shape is fitted into the groove shape based on the recognized each positional relation when the beveling instruction is given to the lens edger; and
performing the beveling of the lens with the lens edger based on the beveling instruction which includes the corrected beveling amount such that the lens fits into the frame.

2. The method of edging a spectacle lens according to claim 1 , wherein
the beveling amount is corrected so that the bevel shape is fitted into the groove shape, in consideration of an inclination amount between the groove shape and the bevel shape.

3. A spectacle lens edging system, comprising:
a spectacle frame measuring machine configured to measure a frame shape of a spectacle frame and output frame shape data;
a lens edger configured to perform beveling to a spectacle lens;
a controller configured to give an instruction of beveling the spectacle lens, to the lens edger based on the frame shape data outputted from the spectacle frame measuring machine,
the controller further comprising:
a recognition part that recognizes a positional relation between a groove shape of the spectacle frame whose frame shape data is measured, and a measurement reference point being a reference when measuring the frame shape data, and a positional relation between a beveling instruction reference point being a reference when a beveling instruction is given to the lens edger and a bevel shape obtained by the beveling; and
a beveling amount correcting part that corrects a beveling amount based on each positional relation recognized by the recognition part, so that the bevel shape is fitted into the groove shape when the beveling instruction is given to the lens edger,
the controller controlling the lens edger to perform the beveling of the lens based on the beveling instruction which includes the corrected beveling amount such that the lens fits into the frame.

4. A non-transitory computer readable recording medium recording a spectacle lens edging program, for causing a computer used by being connected to a spectacle frame measuring machine that measures a frame shape of a spectacle frame and outputs frame shape data, and a lens edger that performs beveling to a spectacle lens, to function as:
a beveling instruction part that gives an instruction of beveling the spectacle lens, to the lens edger based on the frame shape data outputted from the spectacle frame measuring machine;
a recognition part that recognizes a positional relation between a groove shape of the spectacle frame whose frame shape data is measured, and a measurement reference point being a reference when measuring the frame shape data, and a positional relation between a beveling instruction reference point being a reference when a beveling instruction is given to the lens edger and a bevel shape obtained by the beveling; and
a beveling amount correcting part that corrects a beveling amount based on each positional relation recognized by the recognition part, so that the bevel shape is fitted into the groove shape when the beveling instruction is given to the lens edger,
the computer controlling the lens edger to perform the beveling of the lens based on the beveling instruction which includes the corrected beveling amount such that the lens fits into the frame.

5. A method of edging a spectacle lens for performing beveling to a spectacle lens by a lens edger based on frame shape data of the spectacle frame, comprising:
a first recognizing step of recognizing a positional relation between a groove shape of the spectacle frame whose frame shape data is measured, and a measurement reference point being a reference when the frame shape data is measured;
a second recognizing step of recognizing a positional relation between a beveling instruction reference point being a reference when a beveling instruction is given to the lens edger, and a bevel shape obtained by the beveling;
a third recognizing step of recognizing a fitting mode between the groove shape and the bevel shape, based on a recognition result in the first recognizing step, and a recognition result in the second recognizing step; and
a beveling amount correcting step of correcting a beveling amount when the beveling instruction is given to the lens edger so that the bevel shape is fitted into the groove shape, based on a recognition result in the third recognizing step;
a beveling instruction step of giving an instruction of beveling, to the lens edger based on a beveling amount after being corrected in the beveling amount correcting step; and
a beveling step of beveling the lens with the lens edger based on the beveling instruction which includes the corrected beveling amount such that the lens fits into the frame.

6. The method of edging a spectacle lens according to claim 5 , wherein
the fitting mode is recognized in the third recognizing step, in consideration of an inclination amount between the groove shape and the bevel shape.

7. A spectacle lens edging system, comprising:
a spectacle frame measuring machine configured to measure a frame shape of a spectacle frame and output frame shape data;
a lens edger configured to perform beveling to a spectacle lens; and
a controller configured to give an instruction of beveling the spectacle lens, to the lens edger based on the frame shape data outputted from the spectacle frame measuring machine,
the controller further comprising:
a first recognition part that recognizes a positional relation between a groove shape of the spectacle frame whose frame shape data is measured and a measurement reference point being a reference when measuring the frame shape data;
a second recognition part that recognizes a positional relation between a beveling instruction reference point being a reference when the beveling instruction is given to the lens edger, and a bevel shape obtained by the beveling;
a third recognition part that recognizes a fitting mode between the groove shape and the bevel shape, based on a recognition result in the first recognition part and a recognition result in the second recognition part;
a beveling amount correcting part that corrects a beveling amount based on a recognition result in the third recognition part, so that the bevel shape is fitted into the groove shape when the beveling instruction is given to the lens edger; and
a beveling instruction part that gives the beveling instruction to the lens edger based on the beveling amount after being corrected in the beveling amount correcting part,
the controller controlling the lens edger to perform the beveling of the lens based on the beveling instruction which includes the corrected beveling amount such that the lens fits into the frame.

8. A non-transitory computer readable recording medium recording a spectacle lens edging program, for causing a computer used by being connected to a spectacle frame measuring machine that measures a frame shape of a spectacle frame and outputs frame shape data, and a lens edger that performs beveling to a spectacle lens, to function as:
a first recognition part that recognizes a positional relation between a groove shape of the spectacle

Assignees

• Hoya Corp

Inventors

• Kikuchi Yoshihiro

Classifications

• B24B9/144 Primary

  the spectacles being used as a template · CPC title

• B24B9/148

  electrically, e.g. numerically, controlled · CPC title

• B24B49/00

  Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation (B24B33/06, B24B37/005 take precedence; if applicable to other machine tools, B23Q15/00 - B23Q17/00 take precedence) · CPC title