Abstract: A processing device allows processing standard or non-standard spectacle lens prescription documents drafted in a plurality of fashions and provided by eye care professionals, such as opticians, or by end consumers in one of a plurality of languages to determine the data related to the refractive values in a reliable, scalable, and automated fashion. Data related to refractive values is determined from the spectacle lens prescription document. A processing device for determining data related to the refractive values determine at least one pattern containing the data related to the refractive values from an electronic representation of the at least one spectacle lens prescription document, and determines text containing the data related to the refractive values from the electronic representation of the at least one spectacle lens prescription document.

Abstract: A spectacle lens design includes a first zone which has a focal power that provides a focused image on the fovea and a given a height and width. A second zone at least partly surrounds the first zone and contains at least one of the following: (i) focusing structures providing a focal power resulting in a myopic defocus or (ii) diffusing structures, such as scattering centers, leading to a diffusion of light passing the second zone. The first zone is curved to follow the converging line of sight of the wearer upon reading and contains a nasal segment, a temporal segment, and a central segment located between the nasal segment and the temporal segment The nasal segment and the temporal segment are shifted downwards with respect to the central segment.

Abstract: A spectacle lens design includes a first zone which has a focal power that provides a focused image on the fovea and a given a height and width. A second zone at least partly surrounds the first zone and contains at least one of the following: (i) focusing structures providing a focal power resulting in a myopic defocus or (ii) diffusing structures, such as scattering centers, leading to a diffusion of light passing the second zone. The first zone is curved to follow the converging line of sight of the wearer upon reading and contains a nasal segment, a temporal segment, and a central segment located between the nasal segment and the temporal segment The nasal segment and the temporal segment are shifted downwards with respect to the central segment.

Abstract: A spectacle lens design includes an aperture and at least two ring-shaped focusing structures surrounding the aperture. The aperture has a dioptric power, and the ring-shaped focusing structures surrounding the aperture provide an additional power relative to the dioptric power of the aperture. A ring-shaped diffuser is arranged between neighboring ring-shaped focusing structures. Neighboring ring-shaped focusing structures can adjoin each other with a ring-shaped contact line between them forming the ring-shaped diffuser. Neighboring ring-shaped focusing structures can also be arranged at a distance to each other and at least one of the ring-shaped focusing structures provides a ring shaped focal line. Neighboring ring-shaped focusing structures can also be arranged at a distance to each other and at least one of the ring-shaped focusing structures consists of lenslets that adjoin each other so as to form a ring of lenslets and provides a plurality of foci along a ring shaped line.

Abstract: A spectacle lens design for a spectacle lens to be positioned relative to the eye of a wearer according to a given as-worn position is provided. The spectacle lens design includes a clear distance zone, a clear near zone, and an intermediate zone located between the clear zones, such that, when a spectacle lens according to the spectacle lens design is positioned in the as-worn position, the line of sight moves through the intermediate zone when the viewing direction changes from viewing through the clear distance zone to the clear near zone or vice versa. The intermediate zone includes at least one of the following: focusing structures providing a focal power resulting in myopic defocus or diffusing structures leading to a diffusion of light passing the intermediate zone. At least one of the clear distance zone and the clear near zone extends over the whole width of the spectacle lens.

Abstract: A spectacle lens design includes an aperture and at least two ring-shaped focusing structures surrounding the aperture. The aperture has a dioptric power, and the ring-shaped focusing structures surrounding the aperture provide an additional power relative to the dioptric power of the aperture. A ring-shaped diffuser is arranged between neighboring ring-shaped focusing structures. Neighboring ring-shaped focusing structures can adjoin each other with a ring-shaped contact line between them forming the ring-shaped diffuser. Neighboring ring-shaped focusing structures can also be arranged at a distance to each other and at least one of the ring-shaped focusing structures provides a ring shaped focal line. Neighboring ring-shaped focusing structures can also be arranged at a distance to each other and at least one of the ring-shaped focusing structures consists of lenslets that adjoin each other so as to form a ring of lenslets and provides a plurality of foci along a ring shaped line.

Abstract: A spectacle lens design includes a first zone which has a focal power that provides a focused image on the fovea and a given a height and width. A second zone at least partly surrounds the first zone and contains at least one of the following: (i) focusing structures providing a focal power resulting in a myopic defocus or (ii) diffusing structures, such as scattering centers, leading to a diffusion of light passing the second zone. The first zone is curved to follow the converging line of sight of the wearer upon reading and contains a nasal segment, a temporal segment, and a central segment located between the nasal segment and the temporal segment The nasal segment and the temporal segment are shifted downwards with respect to the central segment.

Abstract: The invention is directed to an apparatus for demonstrating the visual impression for a wearer of spectacles having polarizing spectacle lenses. The apparatus includes a memory for providing a first image having a motif and a first polarization direction corresponding thereto and a second image having the same motif and a second polarization direction corresponding thereto, which is different from the first polarization direction. The apparatus also includes a display device for displaying the first image with light polarized in the first polarization direction and the second image with light polarized in the second polarization direction in a superposed representation, such that the motif of the first image and the motif of the second image coincide dimensionally identically. The invention is also directed to a method for demonstrating the visual impression for a wearer of spectacles having polarizing spectacle lenses.

Abstract: The invention is directed to an apparatus for demonstrating the visual impression for a wearer of spectacles having polarizing spectacle lenses. The apparatus includes a memory for providing a first image having a motif and a first polarization direction corresponding thereto and a second image having the same motif and a second polarization direction corresponding thereto, which is different from the first polarization direction. The apparatus also includes a display device for displaying the first image with light polarized in the first polarization direction and the second image with light polarized in the second polarization direction in a superposed representation, such that the motif of the first image and the motif of the second image coincide dimensionally identically. The invention is also directed to a method for demonstrating the visual impression for a wearer of spectacles having polarizing spectacle lenses.