Method of manufacturing a coated ophthalmic lens comprising a structure

Abstract

The invention relates to a method configured to design, by means of a computer, a digital twin of a coated ophthalmic lens for the purpose of using the digital twin for manufacturing the coated ophthalmic lens, and to a method for manufacturing a coated ophthalmic lens.

Claims

1. A method configured to design a digital twin of a coated eyeglass lens by means of a computer for the purpose of manufacturing the coated eyeglass lens using the digital twin, wherein the digital twin of the coated eyeglass lens can be transformed into a physical entity by manufacturing the coated eyeglass lens, the digital twin of the coated eyeglass lens comprising (i) a predefined structure or (ii) a plurality of predefined structures, The digital twin describing the coated spectacle lens is computer-readable data, which additionally includes manufacturing instructions that take into account laser process parameters to achieve either (i) a predefined structure or (ii) the plurality of predefined structures. The structure of the digital twin of the coated spectacle lens is a domain on the lens surface of the digital twin of the coated spectacle lens, the domain being part of one of a plurality of surface layers digitally added to the front and / or rear surfaces of the digital twin of the spectacle lens, or The structure of the digital twin of the coated spectacle lens is a domain of the lens surface of the digital twin of the coated spectacle lens, the domain being formed by one or more surface layers digitally added to the front and / or rear surfaces of the digital twin of the spectacle lens. The method is characterized by the following steps - The laser process parameters are determined based on the curing characteristics of the coating composition, and the refractive index of the material of the structure is a uniform refractive index.

2. The method according to claim 1, characterized in that, - Determine the laser process parameters to include at least one of the following: ○ The spatial variation of one or more laser process parameters in the z-direction. ○ The spatial variation of one or more laser process parameters in the x and y directions. Each implements either (i) a predefined structure, or (ii) multiple predefined structures, or (iii) the same predefined structure among the multiple predefined structures.

3. The method according to any one of the preceding claims, characterized in that, - By manufacturing the coated spectacle lens, the laser process parameters are corrected to... ○ Confirm the laser process parameters, or ○ The laser process parameters are redefined based on the curing characteristics to achieve (i) a predefined structure, (ii) multiple predefined structures, or (iii) the same predefined structure among the multiple predefined structures.

4. The method according to claim 1 or 2, characterized in that, - Determine the laser process parameters to progressively achieve at least one of the following: ○ The aforementioned (i) is a predefined structure, ○ The multiple predefined structures mentioned in (ii), ○ When claim 2 is referenced, (iii) refers to the same predefined structure among the plurality of predefined structures.

5. The method of claim 2, further comprising the step of manufacturing the coated eyeglass lens based on a digital twin of the design.

6. The method according to claim 5, characterized in that, The manufacturing process includes the following steps: - The coating composition is selectively cured by applying the determined laser process parameters to achieve one structure or multiple structures corresponding to one predefined structure or multiple predefined structures.

7. The method according to claim 6, characterized in that, The manufacturing process includes the following steps: - Apply the determined laser process parameters such that at least one of the following is achieved: ○ The spatial variation of the setting of one or more laser process parameters in the z-direction. ○ The spatial variation of the setting of one or more laser process parameters in the x and y directions. Implement (i) one structure, (ii) multiple structures, or (iii) the same structure among the multiple structures.

8. The method according to any one of claims 6 and 7, characterized in that, The manufacturing process includes the following steps: - Apply the determined laser process parameters to gradually achieve at least one of the following: a. The aforementioned (i) structure, b. The plurality of structures mentioned in (ii), c. When claim 7 is referenced, (iii) refers to the same structure among the plurality of structures.

9. The method according to any one of claims 6 to 7, characterized in that, The manufacturing process includes the following steps: - Apply the determined laser process parameters to achieve at least one of the following surface focal lengths: a. The aforementioned (i) structure, b. Each of the plurality of structures in (ii), c. When claim 7 is referenced, the same structure in (iii) of the plurality of structures, Within one of the following ranges, the surface power differs from the surface power of a lens surface comprising (i) a single structure, (ii) multiple structures, and (iii) at least one of the same structures in the multiple structures, outside the location or domain occupied by (i) a single structure, (ii) multiple structures, and (iii) at least one of the same structures in the multiple structures: A. The surface diopter difference is in the range of 0.25 diopters to 50 diopters; B. The surface refractive error is in the range of 1 to 25 diopters; C. The surface focal length difference is in the range of 2 to 20 diopters; D. The surface refractive error is in the range of 5 to 12 diopters.

10. The method according to any one of claims 6 to 7, characterized in that, The manufacturing process includes the following steps: - Apply the determined laser process parameters to achieve the secondary structure along the corresponding surface of at least one of the following: a. The aforementioned (i) structure, b. Each of the plurality of structures in (ii), c. When claim 7 is referenced, (iii) refers to the same structure among the plurality of structures.

11. The method according to claim 10, characterized by the following steps: - Determine the discrete z-position along a straight line in at least one of the following x, y directions: ○ The aforementioned (i) is a structure, ○ Each of the plurality of structures described in (ii), and ○ The same structure in (iii) of the plurality of structures, Each has a target spherical curvature along the x and y directions and along the straight line. - Based on these discrete z-positions, determine the slope at each discrete x,y position along the said x,y direction, where... The change in slope along the x, y direction deviates from the linear change in the slope of the target spherical curvature.

12. The method according to any one of claims 6 to 7, characterized in that, The manufacturing process includes the following steps: - Apply (a) one additional coating composition or (b) more additional coating compositions.

13. The method according to claim 12, characterized in that, The manufacturing process includes the following steps: - Apply the determined laser process parameters to achieve at least one of the following surface focal lengths. a. The aforementioned (i) structure, b. Each of the plurality of structures in (ii), c. The same structure in (iii) of the plurality of structures, Within one of the following ranges, the surface power differs from the surface power of the lens surface comprising (i) a single structure, (ii) multiple structures, and (iii) the same structure among the multiple structures, outside the location or domain occupied by at least one of (i) a single structure, (ii) multiple structures, and (iii) the same structure among the multiple structures: A. The surface refractive error is in the range of 0.25 diopters to 25 diopters; B. The surface refractive error is in the range of 1 to 25 diopters; C. The surface focal length difference is in the range of 2 to 20 diopters; D. The surface refractive error is in the range of 5 to 12 diopters.

14. A computer configured to perform the following steps: - Determine laser process parameters to realize (i) a predefined structure or (ii) multiple predefined structures of a digital twin of the coated eyeglass lens, wherein the digital twin of the coated eyeglass lens can be transformed into a physical entity by manufacturing the coated eyeglass lens. The structure of the digital twin of the coated spectacle lens is a domain on the lens surface of the digital twin of the coated spectacle lens, the domain being part of one of a plurality of surface layers digitally added to the front and / or rear surfaces of the digital twin of the spectacle lens, or The structure of the digital twin of the coated spectacle lens is a domain of the lens surface of the digital twin of the coated spectacle lens, the domain being formed by one or more surface layers digitally added to the front and / or rear surfaces of the digital twin of the spectacle lens. The refractive index of the material in the structure is a uniform refractive index. And at least one selected from the group consisting of: a laser as defined in section 3.19.1 of ISO 11145:2018(E), a laser apparatus as defined in section 3.19.6 of ISO 11145:2018(E), a laser assembly as defined in section 3.19.7 of ISO 11145:2018(E), and a laser unit as defined in section 3.19.8 of ISO 11145:2018(E).

15. A computer-readable data carrier having a computer program stored thereon comprising instructions that, when executed by a computer, cause the computer to perform the method according to any one of claims 1 to 4.

16. A computer-readable storage medium having a computer program including instructions stored thereon, which, when executed by a computer, cause the computer to perform the method according to any one of claims 1 to 4.

17. A method for manufacturing a coated eyeglass lens based on a digital twin of the coated eyeglass lens, wherein the digital twin of the coated eyeglass lens can be transformed into a physical entity by manufacturing the coated eyeglass lens, and one or more surface layers have been digitally added to the digital twin of the coated eyeglass lens to change one or more properties of the digital twin of the eyeglass lens, the surface layer or more surface layers comprising (i) a structure or (ii) multiple structures, the method characterized by the following steps: - Selectively curing a coating composition or more coating compositions on the surface of an eyeglass lens using laser radiation or a laser beam, the laser radiation being defined in section 3.19.4 of ISO 11145:2018(E) and the laser beam being defined in section 3.19.5 of ISO 11145:2018(E) to produce said one or more surface layers on said surface of said eyeglass lens, said one or more surface layers comprising said (i) one structure or said (ii) multiple structures, the refractive index of the material of the structure being a uniform refractive index.

18. The method according to claim 17, characterized in that, The coating composition or the more coating compositions completely cover the surface of the eyeglass lens.

19. The method according to any one of claims 17 and 18, characterized by the following steps: - Remove the uncured coating composition from the surface of the eyeglass lens.

20. The method according to any one of claims 17 to 18, characterized in that, The surface layer or the plurality of surface layers form or create the (i) one structure or the (ii) plurality of structures.

21. The method according to any one of claims 17 to 18, characterized in that, The laser radiation or the laser beam is applied according to the laser process parameters such that at least one of the following is achieved: ○ The spatial variation of one or more laser process parameters in the z-direction. ○ The spatial variation of one or more laser process parameters in the x and y directions. Implement (i) one structure, (ii) multiple structures, or (iii) the same structure among the multiple structures.

22. The method according to claim 21, characterized in that, By progressively applying the laser process parameters, at least one of the following can be achieved: a. The aforementioned (i) structure, b. The plurality of structures mentioned in (ii), c. The same structure as (iii) in the plurality of structures.

23. The method according to claim 21, characterized in that, Apply the laser process parameters to achieve at least one of the following surface focal lengths: a. The aforementioned (i) structure, b. Each of the plurality of structures in (ii), c. The same structure in (iii) of the plurality of structures, Within one of the following ranges, the surface power differs from the surface power of a lens surface comprising (i) a single structure, (ii) multiple structures, and (iii) at least one of the same structures in the multiple structures, outside the location or domain occupied by (i) a single structure, (ii) multiple structures, and (iii) at least one of the same structures in the multiple structures: A. The surface diopter difference is in the range of 0.25 diopters to 50 diopters; B. The surface refractive error is in the range of 1 to 25 diopters; C. The surface focal length difference is in the range of 2 to 20 diopters; D. The surface refractive error is in the range of 5 to 12 diopters.

24. The method according to claim 21, characterized in that, The laser process parameters are applied to achieve a secondary structure along the corresponding surface of at least one of the following: a. The aforementioned (i) structure, b. Each of the plurality of structures in (ii), c. The same structure as (iii) in the plurality of structures.

25. The method according to claim 24, characterized by the following steps: - Determine the discrete z-position along a straight line in at least one of the following x, y directions: ○ The aforementioned (i) is a structure, ○ Each of the plurality of structures described in (ii), and ○ The same structure in (iii) of the plurality of structures, Each has a target spherical curvature along the x and y directions and along the straight line. - Based on these discrete z-positions, determine the slope at each discrete x,y position along the said x,y direction, where... The change in slope along the x, y direction deviates from the linear change in the slope of the target spherical curvature.

26. The method according to any one of claims 17 to 18, characterized in that, The manufacturing process includes the following steps: - Apply (a) one additional coating composition or (b) more additional coating compositions.

27. The method according to claim 26, characterized in that, The manufacturing process includes the following steps: - Apply the determined laser process parameters to achieve at least one of the following surface focal lengths: a. The aforementioned (i) structure, b. Each of the plurality of structures in (ii), c. The same structure in (iii) of the plurality of structures, Within one of the following ranges, the surface power differs from the surface power of the lens surface comprising (i) a single structure, (ii) multiple structures, and (iii) the same structure among the multiple structures, outside the location or domain occupied by at least one of (i) a single structure, (ii) multiple structures, and (iii) the same structure among the multiple structures: A. The surface refractive error is in the range of 0.25 diopters to 25 diopters; B. The surface refractive error is in the range of 1 to 25 diopters; C. The surface focal length difference is in the range of 2 to 20 diopters; D. The surface refractive error is in the range of 5 to 12 diopters.

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