Method and system for determining parameters used to manufacture an optical article and a corresponding optical article
This method for determining specification parameters used to manufacture an optical article includes steps of: training at least one neural network to predict the specification parameters, by using a training data set including a plurality of training prescription parameters and corresponding training specification parameters; and predicting specification parameters of the optical article by the at least one neural network, from prescription parameters relating to the optical article, on the basis of the training.
1. A method for determining specification parameters used to manufacture at least one ophthalmic lens, said specification parameters including one or more of: (i) optical and/or geometrical data relating to said at least one ophthalmic lens, and (ii) at least one parameter relating to a manufacturing process required to manufacture said ophthalmic lens, the method comprising:
training at least one neural network to predict said specification parameters used to manufacture the at least one ophthalmic lens, by using a training data set comprising a plurality of training prescription parameters and corresponding training specification parameters; and
predicting the specification parameters of said at least one ophthalmic lens by said at least one trained neural network, from prescription parameters relating to said at least one ophthalmic lens, based on said training.
2. The method according to claim 1 , wherein said prescription parameters relating to said at least one ophthalmic lens comprise at least one parameter relating to an ophthalmic correction to correct a specific visual deficiency.
3. The method according to claim 2 , wherein said training comprises teaching said neural network how to select an appropriate blocking ring to manufacture said at least one ophthalmic lens.
4. The method according to claim 2 , wherein said neural network has 8 input neurons and 24 output neurons.
5. The method according to claim 2 , wherein said training comprises an iterative phase including measuring an error in the output of said neural network and updating weights in said neural network in order to reduce said error.
6. The method according to claim 1 , wherein said training comprises teaching said neural network how to select an appropriate blocking ring to manufacture said at least one ophthalmic lens.
7. The method according to claim 6 , wherein said neural network has 8 input neurons and 24 output neurons.
8. The method according to claim 6 , wherein said training comprises an iterative phase including measuring an error in the output of said neural network and updating weights in said neural network in order to reduce said error.
9. The method according to claim 1 , wherein said neural network has 8 input neurons and 24 output neurons.
10. The method according to claim 9 , wherein said training comprises an iterative phase including measuring an error in the output of said neural network and updating weights in said neural network in order to reduce said error.
11. The method according to claim 1 , wherein said training comprises an iterative phase including measuring an error in the output of said neural network and updating weights in said neural network in order to reduce said error.
12. The method according to claim 11 , wherein said training is carried out until said error is below a predetermined threshold.
13. The method according to claim 11 , wherein said training is carried out for a predetermined number of iterations of said iterative phase.
14. A system for determining specification parameters used to manufacture at least one ophthalmic lens, said specification parameters including one or more of: (i) optical and/or geometrical data relating to said at least one ophthalmic lens, and (ii) at least one parameter relating to a manufacturing process required to manufacture said ophthalmic lens, the system comprising:
at least one neural network predicting said specification parameters by performing the method according to claim 1 .
15. An ophthalmic lens manufactured by using the specification parameters determined by implementing the method according to claim 1 .
16. A non-transitory computer-readable medium on which is stored a computer program comprising one or more sequences of instructions that are accessible to a processor and that, when executed by said processor, cause said processor to carry out the method according to claim 1 .