Secured data communication in a networked computer system for providing optical lenses

An optical lens supply system for providing, through a network, at least one optical lens adapted to a wearer, the optical lens comprising a first part and a second part, the system comprising a processor (DPD) for:

• a) receiving, directly or indirectly via a manufacturing lab, from a first networked computer entity (PC1;
• PC3) located at a lens ordering side (LOS), a first set of data (S1), the first set of data (S1) comprising at least wearer's data and in particular wearer's prescription data,
• b) sending a second set of data (S2) comprising at least an optical lens design information and the wearer's prescription data to a second networked computer entity (PC2) located at a lens designing side (LDS), and receiving from the second networked computer entity (PC2) a third set of data (S3) comprising at least optical lens data (OLD) calculated from the second set (S2), wherein the optical lens data (OLD) comprises a first set of optical lens data (OLD1) related to the first lens part and a second set of optical lens data (OLD2) related to the second lens part, the first set of optical lens data (OLD1) and the second set of optical lens data (OLD2) defining together a optical function (OF) of the optical lens, wherein the optical function (OF) of the optical lens defines optical and geometrical properties of the optical lens;
• c) sending at least to a third networked computer entity (PC3), at a lens manufacturing lab (LMS), at least the first set of optical lens data (OLD1),
• d) sending at least to a fourth networked computer entity (PC4), at a semi-finished lens manufacturing lab (SFLMS), at least the second set of optical lens data (OLD2) the first set of optical lens data (OLD1) and the second set of optical lens data (OLD2) defining together the optical function;
• wherein the at least first and second optical lens data (OLD1, OLD2) are each at least partially modified by a masking function (ENCR;
• MOLD1, MOLD2) and wherein a masking function is applied to:
• the first set of optical lens data so as to obtain a first modified set of optical lens data (MOLD1), and
• to the second set of optical lens data so as to obtain a second modified set of optical lens data (MOLD2),
• the first modified set of optical lens data (MOLD1) and the second modified set of optical lens data (MOLD2) defining together a same optical function as said optical function (OF) of the optical lens, and said optical lens are manufactured at the semi-finished lens manufacturing lab (SFLMS) and at the lens manufacturing lab (LMS) using the first modified set of optical lens data (MOLD1) and the second modified set of optical lens data (MOLD2) that together define the same optical function as said optical function (OF) of the optical lens.