Method and device for manufacturing an opthalmic lens using a photoactive material

摘要

Method for manufacturing an ophthalmic lens (101, 102, 103, 104) comprising:
a) providing a sample (100) with a layer (120) of a photoactive material which can be activated to vary its index of refraction;
b) providing a at least two dimensional variable refractive index map of a desired final layer of the photoactive material so as to define a part of the ophthalmic lens to be manufactured;
c) exposing the layer of the photoactive material to an activation radiation (44) in order to vary its index of refraction and measuring the resulting refractive index map of the exposed layer of the photoactive material;
d) calculating the map of differences between the refractive index map of the desired final layer and the refractive index of the exposed layer of step c);
e) repeating steps c) and d) up to a predetermined refractive index difference map.