Spectacle lens and a method for producing a spectacle lens

A method for producing a spectacle lens for at least one eye of a user, the method comprising:

• a) generating a spectacle lens based on instructions configured to compensate at least one ocular aberration of the at least one eye of the user;
• and
• b) introducing at least one permanent marking into a lens body of the spectacle lens,
• wherein the at least one permanent marking is introduced into the lens body such that the at least one permanent marking is or contains at least one diffractive structure, wherein at least one diffractive pattern generated by illumination of the diffractive structure is configured to be invisible upon a first kind of illumination and configured to be visible only upon a second kind of illumination, wherein being visible is a property of the at least one diffractive pattern of being perceived by the at least one eye of the user, and wherein being invisible is a property of the at least one diffractive pattern of not being perceived by the at least one eye of the user,
• wherein the at least one diffractive pattern is configured to be visible only under illumination in at least one of a near-infrared spectral region and a near-ultraviolet spectral region, wherein the at least one permanent marking is configured to provide information about at least one of a location on the lens body, wherein the information about the at least one location on the lens body is selected from at least one of:
• a distance reference point;
• at least one near reference point;
• a fitting cross;
• a prism reference point;
• and
• an alignment reference marking.

A computer program stored on a non-transitory storage medium and having executable instructions for performing a method for producing a spectacle lens for at least one eye of a user, the method comprising:

• a) generating a spectacle lens based on instructions configured to compensate at least one ocular aberration of the at least one eye of the user;
• and
• b) introducing at least one permanent marking into a lens body of the spectacle lens,
• wherein the at least one permanent marking is introduced into the lens body such that the at least one permanent marking is or contains at least one diffractive structure, wherein at least one diffractive pattern generated by illumination of the diffractive structure is configured to be invisible upon a first kind of illumination and configured to be visible only upon a second kind of illumination, wherein being visible is a property of the at least one diffractive pattern of being perceived by the at least one eye of the user, and wherein being invisible is a property of the at least one diffractive pattern of not being perceived by the at least one eye of the user,
• wherein the at least one diffractive pattern is configured to be visible only under illumination in at least one of a near-infrared spectral region and a near-ultraviolet spectral region, wherein the at least one permanent marking is configured to provide information about at least one of a location on the lens body, and wherein the information about the at least one location on the lens body is selected from at least one of:
• a distance reference point;
• at least one near reference point;
• a fitting cross;
• a prism reference point;
• and
• an alignment reference marking.

A spectacle lens for at least one eye of a user, the spectacle lens comprising:

• a lens body having at least one permanent marking, wherein the at least one permanent marking is or contains at least one diffractive structure, wherein at least one diffractive pattern generated by illumination of the diffractive structure is configured to be invisible upon a first kind of illumination and configured to be visible only upon a second kind of illumination, wherein being visible is a property of the at least one diffractive pattern of being perceived by the at least one eye of the user, and wherein being invisible is a property of the at least one diffractive pattern of not being perceived by the at least one eye of the user,
• wherein the at least one diffractive pattern is configured to be visible only under illumination in at least one of a near-infrared spectral region and a near-ultraviolet spectral region, wherein the at least one permanent marking is configured to provide information about at least one of a location on the lens body, wherein the information about the at least one location on the lens body is selected from at least one of:
• a distance reference point;
• at least one near reference point;
• a fitting cross;
• a prism reference point;
• and
• an alignment reference marking,
• and wherein an incident light beam not containing at least one wavelength in at least one of a near-infrared spectral region and a near-ultraviolet spectral region impinging on the lens body outside the at least one diffractive pattern or on the least one diffractive pattern is transmitted without altering a spectral distribution of the light beam, whereas an incident light beam containing at least one wavelength in at least one of a near-infrared spectral region and a near-ultraviolet spectral region which impinges on the least one diffractive pattern alters the spectral distribution of the light beam.

A method for producing a spectacle lens for at least one eye of a user, the method comprising:

• a) generating a spectacle lens based on instructions configured to compensate at least one ocular aberration of the at least one eye of the user;
• and
• b) introducing at least one permanent marking into a lens body of the spectacle lens,
• wherein the at least one permanent marking is introduced into the lens body such that the at least one permanent marking is or contains at least one diffractive structure, wherein at least one diffractive pattern generated by illumination of the diffractive structure is configured to be invisible upon a first kind of illumination and configured to be visible only upon a second kind of illumination, wherein being visible is a property of the at least one diffractive pattern of being perceived by the at least one eye of the user, and wherein being invisible is a property of the at least one diffractive pattern of not being perceived by the at least one eye of the user,
• wherein the at least one diffractive pattern is configured to be visible only under illumination in at least one of a near-infrared spectral region and a near-ultraviolet spectral region, wherein the at least one permanent marking is configured to provide information about at least one of a location on the lens body, wherein the information about the at least one location on the lens body is selected from at least one of:
• a distance reference point;
• at least one near reference point;
• a fitting cross;
• a prism reference point;
• and
• an alignment reference marking,
• and wherein an incident light beam not containing at least one wavelength in at least one of a near-infrared spectral region and a near-ultraviolet spectral region impinging on the lens body outside the at least one diffractive pattern or on the least one diffractive pattern is transmitted without altering a spectral distribution of the light beam, whereas an incident light beam containing at least one wavelength in at least one of a near-infrared spectral region and a near-ultraviolet spectral region which impinges on the least one diffractive pattern alters the spectral distribution of the light beam.

A computer program product having executable instructions for performing a method for producing a spectacle lens for at least one eye of a user, the method comprising:

• a) generating a spectacle lens based on instructions configured to compensate at least one ocular aberration of the at least one eye of the user;
• and
• b) introducing at least one permanent marking into a lens body of the spectacle lens,
• wherein the at least one permanent marking is introduced into the lens body such that the at least one permanent marking is or contains at least one diffractive structure, wherein at least one diffractive pattern generated by illumination of the diffractive structure is configured to be invisible upon a first kind of illumination and configured to be visible only upon a second kind of illumination, wherein being visible is a property of the at least one diffractive pattern of being perceived by the at least one eye of the user, and wherein being invisible is a property of the at least one diffractive pattern of not being perceived by the at least one eye of the user,
• wherein the at least one diffractive pattern is configured to be visible only under illumination in at least one of a near-infrared spectral region and a near-ultraviolet spectral region, wherein the at least one permanent marking is configured to provide information about at least one of a location on the lens body, wherein the information about the at least one location on the lens body is selected from at least one of:
• a distance reference point;
• at least one near reference point;
• a fitting cross;
• a prism reference point;
• and
• an alignment reference marking,
• and wherein an incident light beam not containing at least one wavelength in at least one of a near-infrared spectral region and a near-ultraviolet spectral region impinging on the lens body outside the at least one diffractive pattern or on the least one diffractive pattern is transmitted without altering a spectral distribution of the light beam, whereas an incident light beam containing at least one wavelength in at least one of a near-infrared spectral region and a near-ultraviolet spectral region which impinges on the least one diffractive pattern alters the spectral distribution of the light beam.