Eyeglass lens evaluation method, eyeglass lens design method, eyeglass lens manufacturing method, eyeglass lens manufacturing system, and eyeglass lens
First Claim
Patent Images
1. An eyeglass lens manufacturing method, comprising:
- selecting relative measurement values from individual measurement values related to binocular vision of a wearer of eyeglasses, including;
a positive relative convergence, a negative relative convergence, a positive relative accommodation, a negative relative accommodation and a vertical fusional vergence, using at least one of or both of the positive relative convergence and the negative relative convergence in the relative measurement values;
optimizing the binocular vision while using, as an evaluation function for calculation of the optimizing, a function obtained by adding binocular visual acuity functions including the relative measurement values as factors at respective evaluation points; and
manufacturing eyeglass lenses based on optical design values obtained by the calculation for the optimizing.
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Abstract
With respect to the evaluation of custom-made eyeglass lenses using a binocular visual acuity function, a measurement value including essentially at least one of or both of a positive relative convergence or a negative relative convergence of the positive relative convergence, the negative relative convergence, a positive relative accommodation, a negative relative accommodation and a vertical fusional vergence is provided as a factor.
34 Citations
10 Claims
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1. An eyeglass lens manufacturing method, comprising:
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selecting relative measurement values from individual measurement values related to binocular vision of a wearer of eyeglasses, including;
a positive relative convergence, a negative relative convergence, a positive relative accommodation, a negative relative accommodation and a vertical fusional vergence, using at least one of or both of the positive relative convergence and the negative relative convergence in the relative measurement values;optimizing the binocular vision while using, as an evaluation function for calculation of the optimizing, a function obtained by adding binocular visual acuity functions including the relative measurement values as factors at respective evaluation points; and manufacturing eyeglass lenses based on optical design values obtained by the calculation for the optimizing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An eyeglass lens manufacturing system in which an ordering side computer having a function of executing a process for ordering eyeglass lenses and is installed on an eyeglass lens ordering side, a manufacturing side computer having a function of receiving information from the ordering side computer and executing a process necessary for receiving an order for the eyeglass lenses are connected via a network,
wherein the ordering side computer transmits information necessary for designing the eyeglass lenses including at least one of or both of a positive relative convergence and a negative relative convergence, to the manufacturing side computer; -
wherein the manufacturing side computer includes; a data input unit to which data including the information necessary for designing the eyeglass lenses value transmitted from the ordering side computer is inputted; a binocular visual acuity function calculation unit that calculates optical performance values at a plurality of evaluation points of the eyeglass lenses based on the inputted data; an evaluation value optimization unit that optimizes the optical performance values by using, as an evaluation function, a function obtained by adding binocular visual acuity functions including, as factors, the information necessary for designing the eyeglass lenses; an evaluation function evaluating unit that evaluates the optical performance values by comparing the evaluation function with a predetermined threshold; a design data correction unit that corrects design data when values of the binocular visual acuity functions do not reach a predetermined convergence condition as a result of the evaluation by the evaluation function evaluating unit; an optical design value determination unit that determines the design data based on a result of evaluation finished for each evaluation point by the evaluation function evaluating unit; a design data output unit that supplies final design data obtained by the optical design value determination unit; and a lens processing device that manufactures the eyeglass lenses based on the final design data supplied by the design data output unit.
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10. Eyeglass lenses manufactured by executing the steps of:
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selecting relative measurement values from individual measurement values related to binocular vision of a wearer of eyeglasses, including;
a positive relative convergence, a negative relative convergence, a positive relative accommodation, a negative relative accommodation and a vertical fusional vergence, using at least one of or both of the positive relative convergence and the negative relative convergence in the relative measurement values; andexecuting optimization while using an evaluation function obtained by adding binocular visual acuity functions including the relative measurement values as factors at respective evaluation points; and manufacturing the eyeglass lenses based on optical design values obtained by calculation of the optimizing.
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Specification