Method for the addition of a functional coating on an optical surface of a spectacle lens suitable to be arranged in a spectacle frame

Patent metadata

Field	Value
Publication number	US-9557447-B2
Application number	US-201313901941-A
Country	US
Kind code	B2
Filing date	May 24, 2013
Priority date	May 24, 2012
Publication date	Jan 31, 2017
Grant date	Jan 31, 2017

Abstract

Implementations described and claimed herein provide systems and methods for adding a chosen functional coating on an optical surface of a spectacle lens. In one implementation, it is determined if identified features of the optical surface of the spectacle lens are compatible with the chosen functional coating according to a first set of rules. The features of the optical surface are identified based on an analysis of a quality of the optical surface. Manufacturing information for the chosen functional coating is generated based on the determined compatibility. The manufacturing information includes information for depositing the chosen functional coating on the optical surface where the identified features are compatible with the chosen functional coating and on a modified optical surface where the identified features are not compatible with the chosen functional coating.

First claim

The invention claimed is:

1. A method for adding a chosen functional coating on an optical surface of an existing spectacle lens where the features of said optical surface are unknown, the method being implemented in an eye care practitioner's premises or a spectacle lens retailer shop, the method comprising successive steps of:
providing the existing spectacle lens arranged in a spectacle frame;
carrying out a diagnostic step of the existing spectacle lens prior removing any existing coating of said existing spectacle lens and prior adding the chosen functional coating on an optical surface and wherein the quality of the optical surface is analyzed and the features of the optical surface are identified;
determining, thanks to the diagnostic step, if identified features of the optical surface of the existing spectacle lens are compatible with the chosen functional coating according to a first set of rules using a processor, the features of the optical surface identified based on an analysis of a quality of the optical surface, the first set of rules including an incidence matrix having a list of a plurality of optical surface features associated with a list of a plurality of functional coatings; and
generating manufacturing information for the chosen functional coating based on the determined compatibility, the manufacturing information including information for depositing the chosen functional coating on the optical surface where the identified features are compatible with the chosen functional coating and on a modified optical surface where the identified features are not compatible with the chosen functional coating.

2. The method of claim 1 , wherein each of the associated functional coatings and optical surface features being associated with a parameter regarding a compatibility of the functional coating with the optical surface features.

3. The method of claim 1 , wherein the modified optical surface is determined according to a second set of rules.

4. The method of claim 3 , wherein the second set of rules includes a list of modified optical surfaces associated with a list of pairs of optical surface features and functional coatings, each of the associated pairs and modified optical surfaces being associated with a parameter regarding a compatibility of the associated modified optical surface with the optical surface features and a compatibility of the functional coatings with the associated modified optical surface.

5. The method of claim 1 , wherein the chosen functional coating includes at least one of: an anti-soiling coating, an anti-reflective coating, an anti-dust coating, an anti-fog coating, a water repellent coating, an anti-scratch coating, an impact-resistant coating, an interferential filter, a tinted coating, a mirror coating, a photochromic coating, a polarized coating, or a filter coating.

6. The method of claim 1 , wherein the identified features include at least one of a chemical composition of the optical surface, a nature of the optical surface, or a type of material on the optical surface.

7. The method of claim 6 , wherein the type of material on the optical surface includes at least one of: metal oxide, silica, or varnish.

8. The method of claim 6 , wherein the nature of the optical surface includes at least one of: an anti-soiling material, an anti-reflective material, an anti-dust material, an anti-fog material, a water repellent material, an anti-scratch material, an impact-resistant material, an interferential filter, a tinted material, a mirror material, a photochromic material, a polarizing material, or a filter material.

9. The method of claim 1 , wherein the analysis of the quality of the optical surface comprises:
detecting one or more defects on the optical surface;
quantifying the defects, and
localising the defects.

10. The method of claim 9 , wherein the one or more defects include scratches, breaks, and chips.

11. The method of claim 1 , wherein the analysis of the quality of the optical surface is obtained using at least one of: visual observation, a camera, a spectrophotometer, a conductimeter configured to measure a conductivity of the optical surface, or an identification of marks on the spectacle lens corresponding to the identified features.

12. One or more tangible non-transitory computer-readable storage media storing computer-executable instructions for performing a computer process on a computing system, for a method for adding a chosen functional coating on an optical surface of an existing spectacle lens where the features of said optical surface are unknown, the method being implemented in an eye care practitioner's premises or a spectacle lens retailer shop, where the existing spectacle lens is arranged in a spectacle frame, for carrying out a diagnostic step of the existing spectacle lens prior removing any existing coating of said existing spectacle lens and prior adding the chosen functional coating on an optical surface and wherein the quality of the optical surface is analyzed and the features of the optical surface are identified, the computer process comprising successive steps of:
determining, thanks to the diagnostic step, if identified features of an optical surface of the existing spectacle lens where the features of said optical surface are unknown, are compatible with a chosen functional coating according to a first set of rules, the features of the optical surface identified based on an analysis of a quality of the optical surface, the first set of rules based on a relationship of a list of a plurality of optical surface features to a list of a plurality functional coatings; and
generating manufacturing information for the chosen functional coating based on the determined compatibility, the manufacturing information including information for depositing the chosen functional coating on the optical surface where the identified features are compatible with the chosen functional coating and on a modified optical surface where the identified features are not compatible with the chosen functional coating, the modified optical surface determined according to a second set of rules.

13. A method for adding a chosen functional coating on an optical surface of an existing spectacle lens where the features of said optical surface are unknown, the method being implemented in an eye care practitioner's premises or a spectacle lens retailer shop, the method comprising successive steps of:
receiving the existing spectacle lens in a spectacle frame;
carrying a diagnostic step of the existing spectacle lens prior removing any existing coating of said existing spectacle lens and prior adding the chosen functional coating on an optical surface and wherein the quality of the optical surface is analyzed and the features of the optical surface are identified;
depositing the chosen functional coating based on a determination, thanks to the diagnostic step, of whether identified features of the optical surface are compatible with the chosen functional coating according to a first set of rules based on a relationship a plurality of optical surface features with a plurality of functional coatings, the chosen functional coating deposited on the optical surface where the identified features are compatible with the chosen functional coating or deposited on a modified optical surface formed on the optical surface where the identified features are not compatible with the chosen functional coating.

14. The method of claim 13 further comprising:
protecting the spectacle frame before depositing the chosen functional coating; and
removing the protection from the spectacle frame after depositing the cho

Assignees

• Essilor Int

Inventors

• Arrouy Frederic
• Miller Philip

Classifications

• B29D11/00009

  Production of simple or compound lenses · CPC title

• B29D11/0098

  Inspecting lenses · CPC title

• G02C7/10 Primary

  Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses · CPC title

• G02B27/0012

  Optical design, e.g. procedures, algorithms, optimisation routines · CPC title

• B29D11/00865

  Applying coatings; tinting; colouring (printing, marking or copying processes B41M; identification in general G09F3/00; producing decorative effects in general B44C; positioning or marking of lenses B24B13/0055) · CPC title