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1. (WO2018124311) PROCÉDÉ PERMETTANT DE CONCEVOIR DES VERRES DE LUNETTES, VERRES ET DISPOSITIFS PERMETTANT DE CONCEVOIR CES DERNIERS
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

CLAIMS

1. Method for designing, by means of a computer, at least one surface of a lens for a user, the method comprising steps of:

(i) obtaining (S10) displacement information (dFPH) on an amount of displacement between a user specific fitting position and a reference position, the reference position representing a primary fitting point (FPi) of a lens surface on a reference line of sight (H) of an eye of the user, and the user specific fitting position representing a user specific fitting point (FPm). of the lens surface determined on the basis of the user;

(ii) causing (S20) calculating a design of the at least one surface of the lens on the basis of said displacement information (dFPH) .

2. Method according to claim 1, wherein said calculating comprises calculating the design of said at least one surface on the basis of design characteristic information representing information corresponding to a design having predetermined characteristics relative to said reference position.

3. Method according to any of the preceding claims, further comprising a step of determining at least one user specific design parameter for the user on the basis of said displacement information, the at least one user specific design parameter indicating a relative placement between the lens and the . face of the wearer.

4.. Method according to claim 3, wherein . said calculating comprises calculating the design of said at least surface on the basis of said one user specific design parameter.

5. Method according to any of the preceding claims, wherein said calculating comprises calculating the design of said at least one surface on the basis of surface reference information and user specific design parameter, said surface reference information representing a reference lens surface for said reference position and said user specific design parameter representing a parameter obtained for the user on the basis of said displacement information.

6. Method according to any of the preceding claims, comprising a step of obtaining a physical lens from the at least one surface designed by the step of causing, and fitting the physical lens at a position corresponding to the reference position.

7. Method according to any of the preceding claims, wherein said reference line of sight (H) comprises a line of sight at which the eye of the. user is under natural head position and natural body posture.

8. Method according to any of the preceding claims, wherein said reference line of sight (H) is a substantially horizontal line.

9. Method according to any of the preceding claims, comprising the step of sending said displacement information from a displacement obtaining device to a lens surface design device', and said causing a design comprises causing said lens surface device to design said at least one surface on the basis of said displacement information.

10. Method according to any of the preceding claims, wherein said amount of displacement comprises a difference between a height of said user specific fitting position and a height of said reference fitting position.

11. Method according to any of the preceding claims, wherein said amount of displacement . comprises . an angle between a user specific line of . sight and the reference line of sight, the user specific line of sight being a line of sight passing through the eye's center and the fitting point .

12. Method according to any of the preceding claims, wherein said amount of displacement comprises an angle between a PRP line of sight and the reference line of sight, the PRP line of sight being a line of sight passing through the eye's center and a prism reference point (PRP).

13. Method for designing, by means of a computer, at least one surface of a lens for a user, the method comprising steps of:

(i) obtaining, at a displacement . ordering device, displacement information relating to an amount of displacement between a user specific fitting position and a reference fitting position, the reference fitting position representing a primary fitting point of a lens surface on a reference line of sight (H) of an eye of the user, and the user specific fitting position representing a user specific fitting point of the lens surface determined on the basis of the user;

(ii) sending the displacement information from said displacement ordering device to a lens design device;

(iii) designing, at said lens design device, the at least one surface of the lens, on the basis of said displacement information .

14. Method for designing, by means of a computer, at least one surface of a lens for a user, the method comprising steps of:

(i) receiving, at a lens design device, displacement information on an amount of displacement between a user specific fitting position and a reference fitting position, the reference fitting position representing a primary fitting point of a lens surface on a reference line of sight (H) of an eye of the user, and the user specific fitting position representing a user specific fitting point of the lens surface determined on the basis of the user; (ii) designing, at said lens design device, the at least one surface of the lens on the basis of said displacement information.

15. System (500) for designing at least one surface of a lens for a user, the system comprising an information acquiring entity (510). and a lens design entity (520) , wherein

the information acquiring entity (510) comprises obtaining means (510A) configured to obtain displacement information (dFPH) on an amount of displacement between a user specific fitting position and a reference fitting position, the reference fitting position representing a primary fitting point (FPi) of a lens surface on a reference line of sight (H) of an eye of the user, and the user specific fitting position representing a user specific fitting point (FPm) of the lens surface determined on the basis of the user; and

lens design entity (520) comprises designing means

(520A) configured to design the at least one surface of the lens on the basis of said displacement information (dFPH) .

16. Lens design entity (520) for designing at least one surface of a lens for a user, the lens design entity (520) comprising:

acquiring means (520C) for acquiring displacement information (dFPH) on an amount of displacement between a user specific fitting position and a reference fitting position, the reference fitting position representing a primary fitting point (FPi) of a lens surface on a reference line of sight (H) of an eye of the user, and the user specific fitting position representing a user specific fitting point (FPm) of the lens surface determined on the basis of the user;

designing means (520A) configured to design the at least one surface of the lens on the basis of said displacement information (dFPH) .

17. Design parameter obtaining entity (510) for obtaining information necessary for designing at least one surface of a lens for a user, the design parameter obtaining entity (510) comprising:

obtaining means (510A) configured to obtain displacement information (dFPH) on an amount of displacement between a user specific fitting position and a reference fitting position, the reference fitting position representing a primary fitting point (FPi) of a lens surface on a reference line of sight (H) of an eye of the user, and the user specific fitting position representing a user specific fitting point (FPm) of the lens surface determined on the basis of the user; and

communication means (510C) for communicating the displacement information to an entity configured to design at least one surface of a lens for a user on the basis of said displacement information.

18. Design parameter obtaining entity (510) according to claim 17, wherein the design parameter obtaining entity (510) includes at least one amongst a measuring device adapted to acquire measurement corresponding to said displacement information, and a computer entity for acquiring said displacement information.

19. Computer program for designing at least one surface of a lens for a user, the computer program comprising instructions configured to execute, when the program is executed on a computer, all the steps of any one of method claims 1 to 14.

20. A lens obtainable from a method according to any of claims 1 to 14.

21. A lens (L) having at least one lens surface arranged to be fitted on a spectacle frame in correspondence of a reference position, the reference position representing a primary fitting point (FPi) of the at least one lens surface on a reference line of sight (H) of an eye of the user of the lens, wherein said at least one surface is arranged to exhibit predetermined visual optical characteristics relative to a user specific fitting position, the user specific fitting position representing a user specific fitting point (FPm) of the lens surface determined on the basis of the user.

22. A lens according to claim 21, wherein said predetermined visual optical characteristics is one amongst a plurality of visual optical characteristics each relative to said reference position.

23. A lens according to any of claims 21 and 22, wherein said user specific fitting position and said reference position are separated by a displacement amount.

24. A lens according to any of claims 21 to 23, wherein the displacement amount corresponds to displacement information on an amount of displacement between a. user specific fitting position and a reference position.