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WO2011134611A1 - Procédé pour calculer des valeurs relatives à un verre de lunettes en prenant en considération la rotation de l'oeil - Google Patents

Procédé pour calculer des valeurs relatives à un verre de lunettes en prenant en considération la rotation de l'oeil Download PDF

Info

Publication number
WO2011134611A1
WO2011134611A1 PCT/EP2011/001964 EP2011001964W WO2011134611A1 WO 2011134611 A1 WO2011134611 A1 WO 2011134611A1 EP 2011001964 W EP2011001964 W EP 2011001964W WO 2011134611 A1 WO2011134611 A1 WO 2011134611A1
Authority
WO
WIPO (PCT)
Prior art keywords
eye
spectacle lens
eye position
calculating
determining
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2011/001964
Other languages
German (de)
English (en)
Inventor
Gregor Esser
Wolfgang Becken
Helmut Altheimer
Anne Seidemann
Werner Müller
Dietmar Uttenweiler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rodenstock GmbH
Original Assignee
Rodenstock GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rodenstock GmbH filed Critical Rodenstock GmbH
Publication of WO2011134611A1 publication Critical patent/WO2011134611A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/024—Methods of designing ophthalmic lenses
    • G02C7/027—Methods of designing ophthalmic lenses considering wearer's parameters
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/06—Lenses; Lens systems ; Methods of designing lenses bifocal; multifocal ; progressive
    • G02C7/061—Spectacle lenses with progressively varying focal power

Definitions

  • the present invention relates to a method, a system and a computer program product for optimizing or producing a spectacle lens.
  • a model of a schematic eye is usually used, in which all fixing lines or their rearward extensions intersect at a common point, the optical eye pivot point Z '.
  • the fixing line is defined in particular as the connecting straight line between the viewed object point and the center of the entrance pupil.
  • the eye rotation point Z ' has an outstanding importance in order to correctly design the optical properties of a spectacle lens in the peripheral region. This is because the visual acuity of the eye decreases very rapidly with an increase in the visual field angle, ie outside the fovea. It is therefore significantly more important that the peripheral regions of a spectacle lens have very good imaging properties with respect to direct, foveal vision (in eye movements) than with static, peripheral vision.
  • the schematic eye is now usually described by the position of the eye pivot Z 'and the far-end ball or the near-point ball.
  • the position of the eye fulcrum corresponds in particular to the location of the aperture diaphragm and the distance or near-point sphere that corresponds to the image plane (or better image sphere).
  • the far point sphere corresponds to the geometric location for the positions of the far point with the eye and the head still moving, with the eye pivot representing the center of the far point ball.
  • the far point is in particular the setpoint, that is to say in particular the point imaged in the foveola center, in the case of optometric accommodation rest position of the eye.
  • the near-point sphere represents, in particular, the geometric location for the positions of the near point with the eye and the head still moving, the eye pivot representing the center of the near-point sphere.
  • the near point is in particular the setpoint at the highest refractive power of the optical system of the eye.
  • This object is achieved in particular by a method for calculating or optimizing a spectacle lens for a spectacle wearer with the features specified in claim 1; an apparatus for calculating or optimizing a spectacle lens having the features specified in claim 10; a computer program product having the features specified in claim 11; a storage medium having the features specified in claim 12; a method for producing a spectacle lens having the features specified in claim 13; a device for producing a spectacle lens with the features specified in claim 14 and a use of a spectacle lens having the features specified in claim 15.
  • Preferred embodiments are subject of the dependent claims.
  • the invention particularly provides a computer-implemented method for calculating or optimizing a Spectacle lens for a spectacle wearer comprising the steps:
  • a tertiary eye position as a function of the determined first and second secondary eye positions such that a viewing direction of the eye in the tertiary eye position corresponds to an eye-side or image-side course of a central main ray through the evaluation site;
  • At least one viewing direction or viewing axis and one position of the entrance pupil or the aperture diaphragm of the eye are defined or determinable by the eye positions.
  • a torsion position of the eye that is to say its position with respect to rotations about the line of sight or sight axis, is also determined by the eye position.
  • the fixation line of the eye (in particular without spectacle lens) or the eye-side course of a central or central beam striking the eye is defined or determinable as the viewing direction or visual axis.
  • a line is understood or determinable as a line of sight or axis of sight which runs through the center of the entrance pupil or the center of the aperture diaphragm of the eye and more preferably hits the retina substantially in the middle of the foveola of the eye.
  • the orientation of the eye is defined when looking movements on the line of sight or sight.
  • the center of the entrance pupil or the center of the aperture diaphragm of the eye is thus defined as the position of the entrance pupil or aperture diaphragm.
  • eye movements represent very complicated movements whose consideration in the calculation or optimization or production of spectacle lenses can offer an improvement in the spectacle lenses and better acceptance by the spectacle wearer in an efficient manner.
  • the invention proceeds from a determination of two different eye positions or eye deflections from a primary eye position, in particular the zero-sighting direction.
  • the eye deflections, which lead to the first and second secondary eye position, preferably take place in different planes and in particular not around a fixed common eye pivot.
  • one of the at least two eye deflections occurs in a substantially horizontal plane and the other in a substantially vertical plane, i.
  • an eye deflection substantially corresponds to a horizontal eye movement, while the other eye deflection preferably corresponds substantially to a vertical eye movement.
  • the first and / or second secondary eye position relative to the primary eye position is preferably in advance, e.g. measured by an optician individually for the spectacle wearer.
  • standard values or average values for the eye positions could be determined for given standard viewing directions.
  • the attachment points of the six eye muscles are not symmetrical. For example, more than 1 muscle is involved even in simple horizontal or vertical turns. This also results in displacements and deformations of the eyeball. Since the eyeball is also not an ideal sphere and for the reasons listed above, the model of the schematic eye with an idealized, fixed pivot coincides only partially with the reality.
  • the deviations from the idealized schematic eye, in which the fixation line or the eye-side section of the central main rays extend through the spectacle lens through the spectacle lens for all viewing directions, can be taken into account in an efficient manner in particular for the calculation of the optical path to each Viewing point (as assessment point) by the surface of the lens to be optimized a corresponding eye position (tertiary eye position) in particular by interpolation, starting from the determined first and second secondary eye position, is determined such that the line of sight of the eye in this tertiary eye position with the image-side or ., the central axis of the eye coincides with the corresponding visual point.
  • the exact viewing axis as well as the axial position of the eye for this line of sight, in particular the center of the entrance pupil or the center of the aperture diaphragm or their distance to the corresponding viewing point of the spectacle lens is determined individually for each evaluation point, so each viewing point. In particular, it is therefore not assumed that there is always a constant position of an eye rotation point.
  • the combination of individual consideration both the direction and position of the viewing axis and the distance of the entrance pupil or aperture diaphragm from the lens or the corresponding viewing point for each viewing point leads to a significant improvement in the imaging properties of a spectacle lens in the peripheral region.
  • the determination of the tertiary eye position is effected by interpolation starting from the at least two determined secondary eye positions relative to the primary eye position.
  • the method comprises predetermining a predetermined eye rotation model that associates a position of the entrance pupil or aperture of the eye with each viewing direction or the corresponding visual axis and has free parameters whose values are determined from the in particular individually determined secondary eye positions.
  • Influence has the determination according to the invention of a tertiary eye position for each viewing point in particular on the imaging properties, since the light beams impinge on the spectacle lens at a different angle than would be the case if a fixed eye rotation point were specified.
  • the distance of the entrance pupil or aperture diaphragm from the respective viewing point of the spectacle lens changes.
  • determining the first and second secondary eye positions relative to a primary eye position comprises determining first and second secondary axes of rotation of the eye, particularly relative to the primary eye position of the eye, for movement of the eye from the primary eye position (preferably, zero viewing direction) to the first secondary eye position or the second secondary eye position.
  • the first or second rotation axis (also first or second secondary rotation axis) is preferably perpendicular to a plane (first or second secondary rotation plane), which from a primary direction of view or sight, ie the line of sight or sight in the primary eye position . and the first and second secondary viewing direction or viewing axis, that is to say the viewing direction or viewing axis in the first or second secondary eye position, is clamped.
  • the piercing point of the axis of rotation through the respective plane (first or second secondary plane of rotation) or its vertical projection onto the primary axis of vision preferably depends on the line of sight or gaze deflection and does not correspond in particular to the first and second primary eye positions.
  • the first and / or second secondary axes of rotation comprise a vertical and / or a horizontal axis.
  • at least one vertical and one horizontal deflection of sight are preferably determined as first and second viewing deflections.
  • at least one further (third) secondary eye position is determined, in particular, in a viewing direction deviating from the horizontal and the vertical.
  • a third (oblique) secondary rotation axis is determined for this purpose.
  • determining the tertiary eye position comprises determining a tertiary axis of rotation in response to the first and second secondary axes of rotation.
  • the tertiary axis of rotation is perpendicular to a plane (tertiary plane of rotation), which of the primary direction of view or sight, ie the line of sight or sight in the primary eye position, and the tertiary line of sight or sight, ie the line of sight or sight in the tertiary eye position, is stretched.
  • the penetration point of the tertiary rotation axis through the corresponding tertiary plane of rotation or its perpendicular projection onto the primary viewing axis is preferably determined as a function of the penetration points of the secondary axes of rotation by the corresponding secondary planes of rotation or their perpendicular projections to the primary axis of view, in particular by interpolation.
  • determining a tertiary eye position comprises determining a reference point location in response to the determined first and second secondary eye positions.
  • a reference point on the visual axis or the fixation line is particularly preferably determined, which specifies in particular the position of the entrance pupil or the aperture diaphragm of the eye. In particular, this determines the center of the entrance pupil or the center of the aperture diaphragm of the eye.
  • the method comprises determining at least one reference point area as the area on which the reference points of the eye lie for all viewing directions.
  • the vertex and / or the near point and / or the far point and / or the center of the entrance pupil or the center of the aperture diaphragm is determined as the reference point for a multiplicity of tertiary viewing directions or eye positions, in particular for each assessment site.
  • a vertex surface and / or a near-point surface and / or a far-point surface is preferably determined as a reference point surface, which is in particular no spherical surface.
  • a torus surface is determined as the reference point surface.
  • the reference point surface is determined by rotating the reference point, for example, starting from the primary viewing direction about a given axis of rotation (in particular the first or second secondary axis of rotation) and thereby producing a circular arc segment. Due to the different positions of the at least two secondary axes of rotation, the resulting circular arcs preferably clamp the torus surface to be determined and / or the torus surface is adapted or fitted to the resulting circular arcs, in particular for more than two secondary axes of rotation.
  • the evaluation of a correction effect of the spectacle lens in each evaluation point comprises:
  • the method described above for calculating or optimizing a spectacle lens can be applied both for single-vision spectacles and for progressive spectacle lenses.
  • the spectacle lens to be optimized is a progressive spectacle lens.
  • the invention provides an apparatus for calculating or optimizing a spectacle lens for a spectacle wearer, comprising:
  • Prescription data determining means arranged to determine prescription data for at least one eye of the spectacle wearer
  • Eye positioning means adapted to determine a first secondary eye position and a second secondary eye position relative to a primary eye position of the eye
  • Calculating or optimizing means configured to calculate or optimize at least one surface of the spectacle lens for a plurality of evaluation points of the spectacle lens, the computation or optimization means comprising:
  • Eye position evaluation means which are designed to determine a tertiary eye position in dependence on the determined first and second secondary eye position such that a viewing direction of the eye in the tertiary Eye position corresponds to an eye-side course of a central main beam through the evaluation center;
  • Correction judging means adapted to evaluate a corrective effect of the spectacle lens in the tertiary eye judgment site with respect to the prescription data.
  • a spectacle lens differs fundamentally from optical instruments, such as e.g. Lenses, in that the aperture diaphragm or the entrance pupil or the exit pupil of the eye
  • the second surface of the spectacle lens may be a predetermined or predeterminable surface, for example a simple spherical or rotationally symmetric aspheric surface. It is of course possible to optimize both surfaces of the spectacle lens, taking into account the determined viewing angle or viewing direction-dependent eye position.
  • the optimization or calculation means in particular the eye position evaluation means and the correction evaluation means, can be implemented by means of suitably configured or programmed computers, specialized hardware and / or computer networks or computer systems etc. It is possible that the same computer or the same computer system is configured or programmed in such a way, both the calculation or the determination of the prescription in the viewing points and the calculation or optimization of the spectacle lens taking into account the determined regulation and the determined tertiary eye position perform. However, it is of course also possible for the calculation or optimization of the spectacle lens to take place, for example, in separate computers or computer systems.
  • the optimization or calculation means (in particular,
  • Prescription data determination means and the eye position determination means can be in signal connection with corresponding memories by means of suitable interfaces and, in particular, read out and / or modify the data stored in the memory.
  • the prescription data determination means and / or the eye position determination means may further comprise a preferably interactive graphical user interface (GUI) which allows a user to input and / or modify corresponding data. All calculations are preferably done in real time.
  • GUI graphical user interface
  • a further aspect of the invention relates to a computer program product and a storage medium with a computer program stored thereon, wherein the computer program or the computer program product is designed, when loaded and executed on a computer, to carry out an embodiment of the method for calculating or optimizing a spectacle lens.
  • a further aspect of the invention relates to a method for producing a spectacle lens, comprising:
  • calculating or optimizing the spectacle lens comprises providing area data of the spectacle lens calculated or optimized according to an example of the method for calculating or optimizing a spectacle lens.
  • one of the two surfaces of the spectacle lens e.g., the front surface
  • the other surface e.g., the back surface
  • an apparatus for manufacturing proposed a spectacle lens comprises:
  • Calculating or optimizing means configured to calculate or optimize the spectacle lens according to a preferred embodiment of the method for calculating or optimizing a spectacle lens
  • Processing means which are designed to finish the lens finished.
  • the device for producing a spectacle lens comprises area data providing means which are designed to provide area data of the spectacle lens calculated or optimized according to a method for calculating or optimizing a spectacle lens.
  • the processing means for finishing the spectacle lens may e.g. CNC-controlled machines for direct processing of a blanket according to the determined optimization specifications.
  • the spectacle lens can be manufactured by means of a casting process.
  • the finished spectacle lens has a simple spherical or rotationally symmetrical aspherical surface and an optimized (for example, aspherical or progressive) surface according to the design specifications calculated according to the invention and individual parameters of the spectacle wearer.
  • the simple spherical or rotationally symmetric aspherical surface is the front surface (i.e., the object side surface) of the spectacle lens.
  • the apparatus for manufacturing a progressive spectacle lens may further comprise detecting means for detecting individual data of the spectacle wearer.
  • the detection means may in particular comprise graphical user interfaces.
  • a use of a spectacle lens produced according to the above-described manufacturing method in a predetermined average or individual use position of the lens in front of the eyes of a particular wearer of glasses for the correction of ametropia of the wearer of glasses proposed.
  • FIG. 1 shows a flowchart of an exemplary method for optimizing a spectacle lens according to an exemplary embodiment of the invention.
  • Fig. 2 illustrates a beam path for two different viewing directions, i. two different evaluation points 12, 14 of a spectacle lens 10.
  • each given viewing direction (secondary or tertiary) is assigned a specific axis of rotation or axis of rotation, which is perpendicular to the primary and the given viewing direction.
  • the area on which the centers of the entrance pupil are located results pointwise in that the center of the entrance pupil is rotated in the primary direction of view about the given axis of rotation and thereby generates a circular arc segment. Accordingly, the far, near and vertex areas are constructed. These do not necessarily represent more spherical surfaces. In the case of two axes of rotation, the interpolation is preferably to be carried out such that the resulting surfaces each represent a tom. With three or more axes of rotation, it is preferred that the three or more circular arc pieces per area each a torus is adjusted. 3. With these parameters (position of the entrance pupil, vertex, far and near point as a function of the viewing angles), the spectacle lens can now be better calculated and optimized with a model that is significantly closer to the real conditions than under the standard assumption of uniform spherical surfaces ,

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  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)

Abstract

La présente invention concerne notamment un procédé informatisé pour calculer des valeurs relatives à un verre de lunettes destiné à une personne qui porte des lunettes, ou pour optimiser ce verre, le procédé consistant à : déterminer des données de prescription pour au moins un oeil de la personne qui porte des lunettes; déterminer une première position oculaire secondaire et une deuxième position oculaire secondaire par rapport à une position oculaire primaire de l'oeil; calculer les valeurs relatives à au moins une surface du verre de lunettes ou optimiser cette surface pour une pluralité d'emplacement d'évaluation du verre de lunettes, le calcul ou l'optimisation comprenant, pour chaque emplacement d'évaluation, la détermination d'une position oculaire tertiaire en fonction de la première et la deuxième position oculaire secondaire déterminée de sorte qu'une direction de vision de l'oeil dans la position oculaire tertiaire correspond côté oeil à un balayage par un rayon principal central à travers l'emplacement d'évaluation, et l'évaluation d'un effet correcteur du verre de lunettes dans l'emplacement dévaluation pour la position oculaire tertiaire vis-à-vis des données de prescription.
PCT/EP2011/001964 2010-04-28 2011-04-18 Procédé pour calculer des valeurs relatives à un verre de lunettes en prenant en considération la rotation de l'oeil Ceased WO2011134611A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010018549.3 2010-04-28
DE102010018549.3A DE102010018549B4 (de) 2010-04-28 2010-04-28 Computerimplementiertes Verfahren zur Berechnung eines Brillenglases unter der Berücksichtigung der Augenrotation, Vorrichtung zum Berechnen oder Optimieren eines Brillenglases, Computerprogrammerzeugnis, Speichermedium, Verfahren zum Herstellen eines Brillenglases, Vorrichtung zum Herstellen eines Brillenglases sowie Verwendung eines Brillenglases

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WO2011134611A1 true WO2011134611A1 (fr) 2011-11-03

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PCT/EP2011/001964 Ceased WO2011134611A1 (fr) 2010-04-28 2011-04-18 Procédé pour calculer des valeurs relatives à un verre de lunettes en prenant en considération la rotation de l'oeil

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DE (1) DE102010018549B4 (fr)
WO (1) WO2011134611A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9208608B2 (en) 2012-05-23 2015-12-08 Glasses.Com, Inc. Systems and methods for feature tracking
US9236024B2 (en) 2011-12-06 2016-01-12 Glasses.Com Inc. Systems and methods for obtaining a pupillary distance measurement using a mobile computing device
US9286715B2 (en) 2012-05-23 2016-03-15 Glasses.Com Inc. Systems and methods for adjusting a virtual try-on
US9483853B2 (en) 2012-05-23 2016-11-01 Glasses.Com Inc. Systems and methods to display rendered images
US10247963B2 (en) 2014-10-31 2019-04-02 Essilor International Method for optical design of a pair of ophthalmic lenses and pair of ophthalmic lenses thus obtained

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0994336A2 (fr) * 1998-10-12 2000-04-19 Hoya Corporation Méthode pour évaluer les lentilles de lunettes et dispositif d'évaluation
US20040032565A1 (en) * 1999-02-12 2004-02-19 Hoya Corporation Spectacle lens and manufacturing method therefor
WO2004038488A1 (fr) 2002-10-25 2004-05-06 Rodenstock Gmbh Verre de lunettes presentant une reduction des aberrations d'ordre superieur
US20050041205A1 (en) * 2001-04-26 2005-02-24 Hoya Corporation Spectacle lens designing method and spectacle lens
EP2177943A1 (fr) * 2008-10-16 2010-04-21 Essilor International (Compagnie Générale D'Optique) Détermination de système optique selon des critères avancés

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0994336A2 (fr) * 1998-10-12 2000-04-19 Hoya Corporation Méthode pour évaluer les lentilles de lunettes et dispositif d'évaluation
US20040032565A1 (en) * 1999-02-12 2004-02-19 Hoya Corporation Spectacle lens and manufacturing method therefor
US20050041205A1 (en) * 2001-04-26 2005-02-24 Hoya Corporation Spectacle lens designing method and spectacle lens
WO2004038488A1 (fr) 2002-10-25 2004-05-06 Rodenstock Gmbh Verre de lunettes presentant une reduction des aberrations d'ordre superieur
EP2177943A1 (fr) * 2008-10-16 2010-04-21 Essilor International (Compagnie Générale D'Optique) Détermination de système optique selon des critères avancés

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9236024B2 (en) 2011-12-06 2016-01-12 Glasses.Com Inc. Systems and methods for obtaining a pupillary distance measurement using a mobile computing device
US9208608B2 (en) 2012-05-23 2015-12-08 Glasses.Com, Inc. Systems and methods for feature tracking
US9235929B2 (en) 2012-05-23 2016-01-12 Glasses.Com Inc. Systems and methods for efficiently processing virtual 3-D data
US9286715B2 (en) 2012-05-23 2016-03-15 Glasses.Com Inc. Systems and methods for adjusting a virtual try-on
US9311746B2 (en) 2012-05-23 2016-04-12 Glasses.Com Inc. Systems and methods for generating a 3-D model of a virtual try-on product
US9378584B2 (en) 2012-05-23 2016-06-28 Glasses.Com Inc. Systems and methods for rendering virtual try-on products
US9483853B2 (en) 2012-05-23 2016-11-01 Glasses.Com Inc. Systems and methods to display rendered images
US10147233B2 (en) 2012-05-23 2018-12-04 Glasses.Com Inc. Systems and methods for generating a 3-D model of a user for a virtual try-on product
US10247963B2 (en) 2014-10-31 2019-04-02 Essilor International Method for optical design of a pair of ophthalmic lenses and pair of ophthalmic lenses thus obtained

Also Published As

Publication number Publication date
DE102010018549B4 (de) 2022-08-18
DE102010018549A1 (de) 2011-11-03

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