Computer-implemented method, data processing system for producing a target design and computer program, storage medium having instructions for producing a target design, method for providing a spectacle lens, storage medium having a numerical representation of a spectacle lens and method for manufacturing a spectacle lens
AssigneeCarl Zeiss Vision International GmbH
InventorMarkus Welscher
Life of this patent
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Abstract
A target design is produced with a computer-implemented method that takes into consideration an astigmatic effect and is suitable for optimizing a spectacle lens having the astigmatic effect. The method includes providing an initial target design that does not directly take into consideration the astigmatic effect of the spectacle lens, and producing the target design by correcting the initial target design on the basis of a correction target design that directly takes into consideration the astigmatic effect of the spectacle lens.
Claims27
A computer-implemented method for generating a target design which considers an astigmatic power and is suitable for optimizing a spectacle lens with astigmatic power, the method comprising:
- providing an initial target design which does not directly consider an astigmatic power of the spectacle lens or does not consider the astigmatic power of the spectacle lens at all;
- and
- correcting, with a processor, the initial target design based on a correction target design which directly considers the astigmatic power of the spectacle lens to generate the target design,
- wherein the correction target design is calculated by subtracting a first target design from a second target design,
- wherein correcting the initial target design includes adding the initial target design and the correction target design, and
- wherein the initial target design is based on a spherical initial value and the correction target design is based on a cylinder value of a prescription.
A computer-implemented method for generating a target design which considers an astigmatic power and is suitable for optimizing a spectacle lens with astigmatic power, the method comprising:
- providing an initial target design which does not consider achievable aspherizations in the spectacle lens to be generated, which differ along two principal meridians depending on a size of a cylinder value;
- and
- correcting, with a processor, the initial target design based on a correction target design which considers the achievable aspherizations in the spectacle lens to be generated, which differ along the two principal meridians depending on the size of the cylinder value, to implement the generation of the target design,
- wherein the correction target design is calculated by subtracting a first target design from a second target design,
- wherein correcting the initial target design includes adding the initial target design and the correction target design, and
- wherein the initial target design is based on a spherical initial value and the correction target design is based on a cylinder value of a prescription.
A computer-implemented method for generating a target design which considers an astigmatic power and is suitable for optimizing a spectacle lens with astigmatic power, the method comprising:
- providing an initial target design which is a spherical target design;
- and
- implementing the generation of a target design by correcting, with a processor, the initial target design based on a correction target design which is a target design for an atoroidal single-vision lens,
- wherein the correction target design is calculated by subtracting a first target design from a second target design,
- wherein correcting the initial target design includes adding the initial target design and the correction target design, and
- wherein the initial target design is based on a spherical initial value and the correction target design is based on a cylinder value of a prescription.
A non-transitory computer-readable storage medium with instructions stored thereon for generating a target design which considers astigmatic power and is suitable for optimizing a spectacle lens with astigmatic power, wherein the instructions, when executed on a computer, prompt the computer to:
- provide an initial target design which does not directly consider an astigmatic power of the spectacle lens or does not consider the astigmatic power of the spectacle lens at all;
- and
- correct, with a processor, the initial target design based on a correction target design which directly considers the astigmatic power of the spectacle lens to generate the target design,
- wherein the correction target design is calculated by subtracting a first target design from a second target design,
- wherein correcting the initial target design includes adding the initial target design and the correction target design, and
- wherein the initial target design is based on a spherical initial value and the correction target design is based on a cylinder value of a prescription.
A non-transitory computer-readable storage medium with instructions stored thereon for generating a target design which considers astigmatic power and is suitable for optimizing a spectacle lens with astigmatic power, wherein the instructions, when executed on a computer, prompt the computer to:
- provide an initial target design which does not consider achievable aspherizations in the spectacle lens to be generated, which differ along two principal meridians depending on a size of a cylinder value;
- and
- correct, with a processor, the initial target design based on a correction target design which considers the achievable aspherizations in the spectacle lens to be generated, which differ along the two principal meridians depending on the size of the cylinder value, to implement the generation of the target design,
- wherein the correction target design is calculated by subtracting a first target design from a second target design,
- wherein correcting the initial target design includes adding the initial target design and the correction target design, and
- wherein the initial target design is based on a spherical initial value and the correction target design is based on a cylinder value of a prescription.
A non-transitory computer-readable storage medium with instructions stored thereon for generating a target design which considers astigmatic power and is suitable for optimizing a spectacle lens with astigmatic power, wherein the instructions, when executed on a computer, prompt the computer to:
- provide an initial target design which is a spherical target design;
- and
- implement the generation of a target design by correcting, with a processor, the initial target design based on a correction target design which is a target design for an atoroidal single-vision lens,
- wherein the correction target design is calculated by subtracting a first target design from a second target design,
- wherein correcting the initial target design includes adding the initial target design and the correction target design, and
- wherein the initial target design is based on a spherical initial value and the correction target design is based on a cylinder value of a prescription.
A data processing system for generating a target design which considers astigmatic power and is suitable for optimizing a spectacle lens with astigmatic power, wherein the data processing system comprises:
- a processor;
- and
- at least one non-transitory storage memory,
- wherein the processor is configured, based on instructions of a computer program stored in the at least one non-transitory storage memory, to:
- provide an initial target design which does not directly consider an astigmatic power of the spectacle lens or does not consider the astigmatic power of the spectacle lens at all;
- and
- correct, with a processor, the initial target design based on a correction target design which directly considers the astigmatic power of the spectacle lens to generate the target design,
- wherein the correction target design is calculated by subtracting a first target design from a second target design,
- wherein correcting the initial target design includes adding the initial target design and the correction target design, and
- wherein the initial target design is based on a spherical initial value and the correction target design is based on a cylinder value of a prescription.
A data processing system for generating a target design which considers astigmatic power and is suitable for optimizing a spectacle lens with astigmatic power, wherein the data processing system comprises:
- a processor;
- and
- at least one non-transitory storage memory,
- wherein the processor is configured, based on instructions of a computer program stored in the at least one non-transitory storage memory, to:
- provide an initial target design which does not consider achievable aspherizations in the spectacle lens to be generated, which differ along two principal meridians depending on a size of a cylinder value;
- and
- correct, with the processor, the initial target design based on a correction target design which considers the achievable aspherizations in the spectacle lens to be generated, which differ along the two principal meridians depending on the size of the cylinder value, to implement the generation of the target design,
- wherein the correction target design is calculated by subtracting a first target design from a second target design,
- wherein correcting the initial target design includes adding the initial target design and the correction target design, and
- wherein the initial target design is based on a spherical initial value and the correction target design is based on a cylinder value of a prescription.
A data processing system for generating a target design which considers astigmatic power and is suitable for optimizing a spectacle lens with astigmatic power, wherein the data processing system comprises:
- a processor;
- and
- at least one non-transitory storage memory,
- wherein the processor is configured, based on instructions of a computer program stored in the at least one non-transitory storage memory, to:
- provide an initial target design which is a spherical target design;
- and
- implement the generation of a target design by correcting, with the processor, the initial target design based on a correction target design which is a target design for an atoroidal single-vision lens,
- wherein the correction target design is calculated by subtracting a first target design from a second target design,
- wherein correcting the initial target design includes adding the initial target design and the correction target design, and
- wherein the initial target design is based on a spherical initial value and the correction target design is based on a cylinder value of a prescription.
A computer-implemented method for generating a target design which considers an astigmatic power and is suitable for optimizing a spectacle lens with astigmatic power, the method comprising:
- calculating a spherical equivalent of a sphere value and a cylinder value from a prescription for a user;
- providing a set of target designs, each target design from the set of target designs having a sphere value, a specified direction, and, optionally, data representing an addition power;
- selecting an initial target design from the set of target designs,
- wherein the initial target design does not directly consider the astigmatic power of the spectacle lens, and
- wherein the sphere value of the initial target design corresponds to the calculated spherical equivalent;
- and
- generating the target design by correcting the initial target design based on a correction target design which directly considers the astigmatic power of the spectacle lens,
- wherein the correction target design directly considering the astigmatic power of the spectacle lens is ascertained by:
- selecting, from a matrix of target designs for atoroidal single-vision lenses, a first target design whose sphere value and cylinder value are closest to the sphere value and the cylinder value from the prescription for the user;
- selecting a second target design, which is a target design for optimizing an aspherical single-vision lens and which is formed by a sphere value based on an aspherical single-vision lens, from a set of second target designs having different sphere values, wherein the sphere value of the selected second target design comes closest to the calculated spherical equivalent;
- and
- calculating the correction target design by subtracting the selected second target design from the selected first target design,
- wherein correcting the initial target design includes adding the initial target design and the correction target design, and
- wherein the initial target design is based on a spherical initial value and the correction target design is based on a cylinder value of a prescription.
Dependencies are inferred from the claim text.