Appliance for reading the shape of a rim or a half-rim of an eyeglass frame, and a corresponding reading method
AssigneeEssilor Ineternational (Compagnie Generale D'Optique)
InventorChristian Joncour
Life of this patent
Estimating the term…
Abstract
An appliance for reading a rim (110) or a half-rim of an eyeglass frame, includes holder elements for holding the eyeglass frame and a feeler (10) that is mounted to turn about an axis of rotation (A1) in order to follow a longitudinal profile (P1) of the rim or half-rim of the eyeglass frame held in the holder elements. The feeler is fitted with a reader head (12) including a V-shaped bearing shoe (15) that is open in a direction facing away from the axis of rotation and that is adapted to be engaged on the rim or half-rim in order to slide therealong.
Claims14
1-9. (canceled)
A reader appliance (1) for reading a rim (110) or a half-rim of an eyeglass frame (100), the appliance comprising:
- holder means (3, 4) for holding the eyeglass frame (100);
- and
- a feeler (10;
- 20;
- 30) that is mounted to turn about an axis of rotation (A1) in order to follow a longitudinal profile (P1) of the rim (110) or half-rim of the eyeglass frame (100) held in the holder means (3, 4);
- the reader appliance being characterized in that the feeler (10;
- 20;
- 30) is fitted with a reader head (12;
- 22;
- 32) including a V-shaped bearing shoe (15;
- 25;
- 35) that is open in a direction facing away from said axis of rotation (A1).
A reader appliance (1) for reading a rim (110) or a half-rim of an eyeglass frame (100), the appliance comprising:
- holder means (3, 4) for holding the eyeglass frame (100);
- and
- a feeler (10;
- 20;
- 30) adapted to follow a longitudinal profile (P1) of the rim (110) or the half-rim of the eyeglass frame (100) held in the holder means (3, 4);
- the reader appliance being characterized in that the feeler (10;
- 20;
- 30) is fitted with a reader head (12;
- 22;
- 32) including a V-shaped bearing shoe (15;
- 25;
- 35) adapted to be engaged with the rim (110) or the half-rim in order to slide therealong.
A preparation method of preparing an ophthalmic lens (120) for mounting in a rim (110) or a half-rim of an eyeglass frame (100), the rim (110) or half-rim presenting an inside face (114) for being directed towards the ophthalmic lens (120) and a front margin (115) for being directed away from the face of the wearer of the eyeglass frame (100), the method comprising:
- an acquisition step of acquiring a first longitudinal profile (P1) running along the inside face (114) of said rim (110) or half-rim;
- and
- a shaping step of shaping the ophthalmic lens (120) with an engagement ridge (123) being formed on its edge face and extending in accordance with a deduced longitudinal profile (P3) of a shape that is calculated as a function of said first longitudinal profile (P1);
- the preparation method being characterized in that it includes a feeling step of feeling a second longitudinal profile (P2) running along the front margin (115) of said rim (110) or half-rim, by means of a feeler (10;
- 20;
- 30) fitted with a reader head (12;
- 22;
- 32) including a V-shaped bearing shoe (15;
- 25;
- 35) that is engaged on said rim (110) or half-rim to slide therealong;
- and
- in that the deduced longitudinal profile (P3) is also calculated as a function of the second longitudinal profile (P2).
Dependencies are inferred from the claim text.