Rodenstock Gmbh

Optische Werke G. Rodenstock

Gregor Esser

Helmut Altheimer

Wolfgang Becken

Andrea Welk

Walter Haimerl

Dietmar Uttenweiler

Herbert Pfeiffer

Edda Wehner

Werner Mueller

Peter Baumbach

Jochen Brosig

Anne Seidemann

Martin Zimmermann

Stephan Trumm

Adam Muschielok

Rainer Dorsch

Winfried Nikolaus

Martin Zimmerman

Norbert Awrath

Peter Seitz

Yohann Bénard

Rudolf Barth

Rainer Sessner

Martin Wechs

Robert Bichler

Stephan Haser

Ilka Schwarz

Gunther Guilino

Markus Tiemann

Leonhard Schmid

Werner Müller

Nadine Jung

Monika Fuess

Christine Meixner

Wolfgang Hauk

Robert Kaster

Manfred Rohrbach

Katrin Nicke

Kerstin Schmid

Heejin Kim

Roswitha Fendt

Hans Stetter

Fritz Gruna

Guenther Guilino

Werner M&uuml;ller

Walter Haimeri

Matthias Nähring

Christina Butz

Norbet Awrath

Yohann BÉNARD

Peter Dr Seitz

Matthias NÄHRING

Optimizing a spectacle lens for a wearer of implanted intraocular lenses. The method includes providing individual refraction data on the at least one eye of the spectacle wearer; defining an individual eye model in which at least a shape and/or power of a cornea, in particular a corneal front surface, of a model eye, a cornea-lens distance, parameters of the lens of the model eye, and a lens-retina distance are defined as parameters of the individual eye model. Here, defining the parameters of the individual eye model takes place on the basis of data on visual acuity correction of the at least one eye having the intraocular lens and further on the basis of individual measurement values for the eye of the spectacle wearer and/or standard values and/or on the basis of the provided individual refraction data such that the model eye has the provided individual refraction data.

Method and apparatus optimizing spectacle lenses for wearers of implanted intraocular lenses

A computer-implemented method, including: capturing a nominal refractive power and/or a nominal astigmatism in a near reference point of the lens, determining a corrective value of the vertical or horizontal prism in the near reference point of the lens; modifying the nominal refractive power and/or the nominal astigmatism in the near reference point on the basis of the corrective value of the vertical or horizontal prism of the lens; determining a continuous course of the nominal refractive power or the nominal astigmatism along the main line of the lens on the basis of the modified refractive power and/or nominal astigmatism in the near reference point; and calculating or optimizing the lens on the basis of the modified nominal refractive power and/or nominal astigmatism in the near reference point and the determined course of the nominal refractive power and/or the nominal astigmatism along the main line.

Method for taking into consideration different long-distance and short-distance prismatic corrections

A computer-implemented method for calculating or assessing a spectacles lens for an eye of a spectacles wearer. The method includes (a) providing an association of at least one imaging property or aberration of a spectacle lens system with the vision of the spectacles wearer, or of an average spectacles wearer, when observing an object through the spectacles lens system; (b) determining or prescribing a target function for the spectacles lens to be calculated or assessed, in which the association from step (a) is to be evaluated; and (c) calculating or assessing the spectacles lens to be calculated or assessed by evaluating the target function, wherein the target function is evaluated at least once.

Optimizing a spectacle lens taking account of a vision model

A method, a device, and a corresponding computer program product for calculating (optimizing) and producing a spectacle lens with the aid of a semi-personalized eye model. In one approach, the method includes providing personalized refraction data of at least one eye of the spectacles wearer; establishing a personalized eye model in which at least the parameters: shape of an anterior corneal surface of a model eye; a cornea-lens distance; parameters of the lens of the model eye; and lens-retina distance are established using personalized measured values for the eye of the spectacles wearer, and/or using standard values, and/or using the provided personalized refraction data, such that the model eye has the provided personalized refraction data, wherein at least the establishment of the lens-retina distance takes place via calculation.

Population of an eye model using measurement data in order to optimize spectacle lenses

In a method for creating a design of a prescription surface of a multifocal lens, in particular for a progressive spectacle lens, at first data and second data for describing at least one aberration of an eye of a proband for a first situation of use and a second situation of use, respectively, are obtained, and then a first set of parameters and a second set of parameters of a predetermined prescription surface equation are determined from the first and second data, wherein the prescription surface equation is assigned to a first reference point of the prescription surface for the first set of parameters, and is assigned to a second reference point of the prescription surface for the second set of parameters.

Method for creating a design of a prescription surface of a multifocal lens and multifocal lens comprising such a prescription surface

A device for determining the distance of an eye of a user from the image capturing device is disclosed. The device includes a lighting device that is arranged at a specified position relative to the image capturing device and is designed to generate at least one specular light reflection, which has a linear portion, on the cornea of the eye of the user. The device also includes an image capturing device designed to capture at least one image of the specular light reflection in the region of the cornea of the at least one eye of the user. A distance determining device is designed to ascertain data relating to the distance between two specified points of the light reflection and the curvature of the at least one linear portion of the light reflection in the captured image and the distance of the eye from the image capturing device.

Device and method for distance determination and/or centering using corneal reflections

A method and a device for stimulating accommodation of at least one eye of a test person. There is a reliable possibility for determining a set of ophthalmological data relating to at least one eye of the test person and particularly for measuring refractive error of the test person and for determining a corresponding optical correction. The device for determining a set of ophthalmological data relating to at least one eye of a test person, in particular a device for objectively determining refraction comprises: an accommodation stimulating device which is designed to project a virtual target having a spherical effect and having an adjustable cylindrical effect into the at least one eye of the test person; and a measuring device for determining ophthalmological data relating to the at least one eye of the test person.

Aberrometer (or the like) having an astigmatic target

Optimizing and producing a lens by defining an individual eye model, in which a shape of a corneal front surface of a model eye, and a reference aberration at an evaluation surface within the model eye are defined based on individual measurement values for the lens wearer's eye, on standard values, or based on provided individual refraction data; specifying first and second surfaces for the lens to be optimized; determining the path of a main ray through a visual point a surface of the lens into the model eye up to the evaluation surface; evaluating an aberration of a wavefront propagating along the main ray and resulting from a spherical wavefront incident on the first surface of the lens at the evaluation surface in comparison to the reference aberration; and iteratively varying the surface of the lens until the evaluated aberration corresponds to a predetermined target aberration.

Population of an eye model for optimizing spectacle lenses with measurement data

An apparatus for determining optical parameters of a user with spectacles arranged in the use position on the head of the user includes at least one projection device designed and arranged for marking a partial region of the head of the user and/or of the spectacles of the user with a light projection; at least one image recording device designed and arranged for generating image data at least from the marked partial region of the head of the user and/or of the spectacles of the user; and a data processing device with a user data determining device, which is designed to determine user data from the marked partial region of the head and/or of the spectacles on the basis of the generated image data, wherein the user data comprise spatial information in the three-dimensional space of points of the partial region of the head and/or of the spectacles, and a parameter determining device, which is designed to determine optical parameters of the user on the basis of the user data.

Apparatus and method for determining optical parameters

Adjustment of an eyeglass lens or a pair of eyeglasses by means of an individual brightness-dependent centering of an eyeglass lens. In particular, a method for adjusting an individual eyeglass lens for at least one eye of an eyeglass wearer, including: defining an individual usage situation which comprises at least one target brightness value for the light to be captured by the at least one eye; determining a position of the pupil in at least one direction of view of the at least one eye which occurs or is expected at the at least one target brightness value; determining a reference point of the eyeglass lens, in which the eyeglass lens effects a required correction of individual refraction data for the at least one direction of view; on the basis of the determined individual value of the pupil position, providing and arranging the eyeglass lens in such a manner that the at least one reference point of the eyeglass lens is arranged in front of the at least one eye of the eyeglass wearer.

Brightness-dependent adjustment of a spectacle lens

An ophthalmic lens for presbyopia correction, having at least one diffractive structure, wherein the diffractive structure has at least one region of variable diffraction efficiency in which the diffraction efficiency of at least one diffraction order of the diffractive structure that contributes to the focal power of the lens varies depending on the visual point on the ophthalmic lens.

Ophthalmic lens for presbyopia correction

A computer-implemented method for calculating or optimizing a spectacle lens for at least one eye of a spectacle wearer. Refraction data of the at least one eye of the spectacle wearer is collected. An individual eye model is defined, wherein the eye model defines at least the topography of a corneal front surface of the at least one eye, position and power of a lens of the eye, and a retina position of the eye such that the eye exhibits the collected refraction data. A first surface and a second surface for the spectacle lens to be calculated or optimized is specified. The path of a main ray through at least one visual point of at least one spectacle lens surface to be calculated or optimized is determined. A spherical wavefront incident on the first surface of the spectacle lens along the main ray is specified. A wavefront in the at least one eye, which results from the spherical wavefront in a surrounding of the main ray due to the power of at least the first and second surfaces of the spectacle lens, the corneal front surface, and the lens of the at least one eye is determined. The at least one spectacle lens surface to be calculated or optimized is iteratively varied until an aberration of the resulting wavefront corresponds to a specified target aberration.

Eyeglass optimization using an individual eye model

Method for assessing an optical property of korder of an optical element at an evaluation point. The optical element has a boundary surface formed of a refractive base surface and a phase-modifying optical element. The method includes determining the properties of a wavefront in the local surrounding of the evaluation point by means of a local wavefront tracing, and determining the optical property at the evaluation point based on the properties of the wavefront in the local surrounding of the evaluation point, wherein the local wavefront tracing has a local wavefront tracing upon passage through the boundary surface, and the local wavefront tracing upon passage through the boundary surface is performed according to the equation for the local wavefront tracing through the refractive base surface, the equation being supplemented by an additive additional term PK.

Method of calculation for detailed waverfront calculation for spectacle lenses with a diffractive grating

Method for calculating or optimizing a spectacle lens, including

Method for calculating and optimizing an eyeglass lens taking into consideration higher-order imaging errors

Adjustment of an eyeglass lens or a pair of eyeglasses by means of an individual brightness-dependent centering of an eyeglass lens. In particular, a method for adjusting an individual eyeglass lens for at least one eye of an eyeglass wearer. The method includes defining an individual usage situation which includes at least one target brightness value for the light to be captured by the at least one eye; determining a position of the pupil in at least one direction of view of the at least one eye which occurs or is expected at the at least one target brightness value; determining a reference point of the eyeglass lens, in which the eyeglass lens effects a required correction of individual refraction data for the at least one direction of view; on the basis of the determined individual value of the pupil position, providing and arranging the eyeglass lens in such a manner that the at least one reference point of the eyeglass lens is arranged in front of the at least one eye of the eyeglass wearer.

Growing community of inventors

Munich, Germany

Gregor Esser