At least one of the first display and a second display move at least one of the left eye image and the right eye image such that a distance between the left eye image and the right eye image is increased. A separation confirmation signal is received indicating that the image focuses of the image do not coincide with each other in terms of fusion. Fusional amplitude information is stored indicating a separation distance between the left eye image and the right eye image when the image separation confirmation is input.

At least one of the first display and a second display move at least one of the left eye image and the right eye image such that a distance between the left eye image and the right eye image is increased. A separation confirmation signal is received indicating that the image focuses of the image do not coincide with each other in terms of fusion. Fusional amplitude information is stored indicating a separation distance between the left eye image and the right eye image when the image separation confirmation is input.

A device for measuring the optical effect of an ophthalmic lens, in particular a spectacle lens, includes a display system, an image acquisition system, and a computer unit. During measurement, the lens is arranged in a measurement volume of the device. The display system displays a test structure and the image acquisition system acquires image data of the test structure from multiple viewpoints using imaging optical paths which pass through the lens. The computer unit determines the three-dimensional shape of the lens on the basis of the image data and calculates an optical effect of the lens on the basis of its three-dimensional shape. A corresponding method and computer program are also disclosed.

A personalized assistance system for a user of a vision correction device includes a remote computing unit with a controller having a processor and tangible, non-transitory memory on which instructions are recorded. The controller is configured to selectively execute one or more machine learning models. A user device is operable by the user and includes an electronic diary module configured to prompt the user to answer one or more preselected questions at specific intervals. The electronic diary module is configured to store respective answers, entered by the user in response to the one or more preselected questions, as self-reported data. The controller is configured to obtain the self-reported data from the electronic diary module and generate an analysis of the self-reported data, via the one or more machine learning models. The controller is configured to assist the user based in part on the analysis.

A personalized assistance system for a user of a vision correction device includes a remote computing unit with a controller having a processor and tangible, non-transitory memory on which instructions are recorded. The controller is configured to selectively execute one or more machine learning models. A user device is operable by the user and includes an electronic diary module configured to prompt the user to answer one or more preselected questions at specific intervals. The electronic diary module is configured to store respective answers, entered by the user in response to the one or more preselected questions, as self-reported data. The controller is configured to obtain the self-reported data from the electronic diary module and generate an analysis of the self-reported data, via the one or more machine learning models. The controller is configured to assist the user based in part on the analysis.

A machine arrangement, for sequentially processing sheet-type substrates, includes a plurality of different processing stations, one of which includes a non-impact printing device that prints the substrates. The processing station, including the non-impact printing device, also includes a printing cylinder, on the circumference of which, the non-impact printing device that prints the substrates is arranged. On the circumferential surface of the printing cylinder, four substrates are or can be placed behind each other in the circumferential direction. Each of the substrates that are to be conveyed are retained in one of a force-locking and a form-fitting manner on the circumferential surface of the printing cylinder by at least one retaining element.

A machine arrangement, for sequentially processing sheet-type substrates, includes a plurality of different processing stations, one of which includes a non-impact printing device that prints the substrates. The processing station, including the non-impact printing device, also includes a printing cylinder, on the circumference of which, the non-impact printing device that prints the substrates is arranged. On the circumferential surface of the printing cylinder, four substrates are or can be placed behind each other in the circumferential direction. Each of the substrates that are to be conveyed are retained in one of a force-locking and a form-fitting manner on the circumferential surface of the printing cylinder by at least one retaining element.

An optometry device for testing an individual's eye, including a refraction test unit having a vision correction optical system for providing different vision correction power values, and a display unit comprising a control unit controlling a projection optical system adapted to produce from a scene picture and from a visual test picture including a functional zone, respectively, along a scene optical path of the projection optical system, a scene image at a scene distance from the individual's eye, and along a visual test optical path of the projection optical system, a visual test image at a visual test distance from the individual's eye smaller than or equal to the scene distance of projection, the visual test image being superimposed at least partially with the scene image.

An optometry device for testing an individual's eye, including a refraction test unit having a vision correction optical system for providing different vision correction power values, and a display unit comprising a control unit controlling a projection optical system adapted to produce from a scene picture and from a visual test picture including a functional zone, respectively, along a scene optical path of the projection optical system, a scene image at a scene distance from the individual's eye, and along a visual test optical path of the projection optical system, a visual test image at a visual test distance from the individual's eye smaller than or equal to the scene distance of projection, the visual test image being superimposed at least partially with the scene image.

The present invention is directed to an automated ophthalmic aberration measurement by an auto-phoropter. In some embodiments, the present invention features a vision testing system capable of automated calibration. In some embodiments, the system may comprise a phoropter capable of measuring the ophthalmic aberration of an eye, and providing the necessary correction. The phoropter may comprise a wavefront sensor, one or more lenses calibrated using an initial correlation factor, a model eye disposed within the phoropter for internal calibration, and a light redirection component disposed within the phoropter. The light redirection component may be capable of redirecting light into the model eye to determine an optimal correlation factor.