WO2008009355A1 - Dispositif et procédé permettant de déterminer une position de port d'une paire de lunettes, dispositif à programme informatique - Google Patents

Dispositif et procédé permettant de déterminer une position de port d'une paire de lunettes, dispositif à programme informatique Download PDF

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Publication number
WO2008009355A1
WO2008009355A1 PCT/EP2007/005976 EP2007005976W WO2008009355A1 WO 2008009355 A1 WO2008009355 A1 WO 2008009355A1 EP 2007005976 W EP2007005976 W EP 2007005976W WO 2008009355 A1 WO2008009355 A1 WO 2008009355A1
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WO
WIPO (PCT)
Prior art keywords
spectacle lens
user
image data
spectacles
relative
Prior art date
Application number
PCT/EP2007/005976
Other languages
German (de)
English (en)
Inventor
Rainer Sessner
Werner Müller
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
Priority to EP07785907A priority Critical patent/EP2047322A1/fr
Publication of WO2008009355A1 publication Critical patent/WO2008009355A1/fr

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C13/00—Assembling; Repairing; Cleaning
    • G02C13/003—Measuring during assembly or fitting of spectacles
    • G02C13/005—Measuring geometric parameters required to locate ophtalmic lenses in spectacles frames
    • 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

Definitions

  • the present invention relates to a device for determining and / or checking a position of spectacles and / or at least one spectacle lens relative to a pupil center of a corresponding eye of a user, a method and a computer program device for carrying out the method.
  • individually optimized spectacle lenses makes it possible to respond to the needs of people with visual defects and to provide, for example, spectacle lenses with individually optimized viewing areas.
  • Individually adapted spectacle lenses allow optimal correction of optical vision defects of a user of the lenses.
  • An individual calculation and adjustment of eyeglass lenses is also possible for sports eyewear, which are characterized by large deflections, frame and pre-tilt angle.
  • the optician has a variety of measuring instruments available.
  • the optician can evaluate pupillary reflexes with a so-called pupillometer or determine the distance of the pupil centers in order to determine the pupil distance in this way.
  • Pretank angle and corneal vertex distance can be determined, for example, with a measuring device, in which the habitual head and body posture of the customer, the meter is held on a socket level of a spectacle frame.
  • the pre-tilt angle can be read off the side of a gravity-driven pointer using a scale.
  • an engraved ruler is used, with which the distance between the estimated groove bottom of the spectacle frame and the cornea is also measured from the side.
  • the frame angle of the spectacle frame can be determined, for example, with a meter on which the glasses are placed.
  • the nasal edge of a disc must be arranged above a pivot point of a movable measuring arm, wherein the other disc is parallel to an engraved line.
  • the measuring arm is adjusted so that a marked axis of the measuring arm is parallel to the frame level of the disc arranged above it.
  • the socket angle can then be read on a scale. If the respective optical parameters have been properly determined and a spectacle lens has been individually manufactured according to these parameters, it is still necessary to grind the spectacle lens into a spectacle frame. When grinding the spectacle lens into the spectacle frame, errors or inaccuracies can occur and / or the spectacle frame can be bent.
  • errors in the grinding in of the spectacle lens could, for example, be at least partially corrected by repositioning the spectacle frame in front of the eye.
  • a check of the actual positioning of each spectacle lens, in particular in front of the corresponding eye (s) of the user, is possible, if at all, exclusively manually. Furthermore, such a review is very inaccurate.
  • a quality control of a pair of manufactured spectacles, in particular only manually is possible, whereby such quality control is regularly inaccurate.
  • An "auxiliary structure" in the sense of the present invention may be an artificial structure arranged, for example, on a head, in particular on a face.
  • the auxiliary structure may also include the entire face, part of the face, part of the head, the shape of the head, the position of characteristic components of the head or face, such as the ears, nose, pigments, a birthmark, freckles, or both eyebrows etc.
  • the auxiliary structure may also include one or more stickers which are glued to the head or to the face.
  • an "eye corresponding to a spectacle lens” in the sense of this invention is the eye of a user of the spectacle lens, i. the eye of the spectacle wearer, in front of which the spectacle lens is placed.
  • the eye corresponding to the spectacle lens is the eye of the spectacle wearer, with whom he looks through the spectacle lens.
  • the right lens corresponds to the right eye and the left lens corresponds to the left eye of the wearer. Glasses of a spectacle wearer thus correspond to both eyes.
  • Eyeglass lenses are, for example, single-vision lenses, multi-vision lenses, for example progressive lenses, with or without tinting, mirroring and / or polarization filters.
  • the position of a spectacle lens relative to a pupil center contains all the information necessary to indicate the arrangement of the spectacle lens relative to the pupil center, such as pretilt of the spectacle lens, position of a disc plane relative to the pupil center and in particular also relative to the zero direction, position of optical particular relevant areas, such as near reference point or range, far reference point or range, etc., position of center point, astigmatism axis, etc.
  • "Characteristic points" of a spectacle lens are, for example, points which make the alignment or the arrangement of the spectacle lens unambiguously determinable.
  • characteristic points may be engraving points of the spectacle lens or reference points of the spectacle lens.
  • two-dimensional, flat structures, such as circles, crosses, etc. can be characteristic points.
  • Engraving points are in particular those points which allow a determination of the optical properties in a unique manner.
  • the relative position of near reference point, far reference point, umbilical line, etc. with respect to a centering point is known as a preferred engraving point.
  • a spectacle lens may have one or more characteristic points, and consequently one or more characteristic points may be represented by the means of representation (s).
  • engraved dots are formed so as to be transparent to the naked eye, i. without further optical aids, are essentially not visible.
  • engraving points may include two or more product-specific micro-engravings, such as e.g. Circle (s), diamond (s), etc., be, which are arranged in particular at a standardized distance from each other, for example, at a distance of about 34 mm. These engraving points are called "main engravings”.
  • engraving points, in particular micro engravings can define a glass horizontal. The center between the two engraving points is at the same time the origin of coordinates (also referred to below as "zero point”) for the further measuring and reference points if stamped glass-specific markings of the spectacle lens are missing.
  • an index for base curve and refractive index of the glass can be located temporally.
  • another engraving point may be a trademark, such as in Shape of a letter, etc., which may be located about 13 mm below the "main engraving” or the engraving of the addition and the index for base curve and refractive index of the glass.
  • a “means of representation” in the sense of this invention may be a sticker, a dot, in particular a drawn point or circle or other two-dimensional object and / or a three-dimensional object.
  • a presentation means may also comprise a plurality of stickers and / or comprise dots, in particular drawn dots or circles or other two-dimensional objects and / or three-dimensional objects.
  • a presentation means differs in particular from an auxiliary structure in that the presentation means is associated with a spectacle lens, for example, in that the presentation means comprises a sticker which is glued onto the spectacle lens.
  • the auxiliary structure is associated with the head or face of a user, for example, by the auxiliary structure comprising a sticker which is glued to the face.
  • a spectacle lens can have one or more characteristic points, which can be represented by one or more representation means.
  • one or more engraving points may be represented by one or more presentation means.
  • the presentation means may be, for example, a sticker which is arranged such that the position of one or more engraving points relative to the sticker can be determined uniquely.
  • a sticker may cover two (or three) engraved dots, and at the location overlying the engraving dots, for example, the sticker may be colored, the color being different from the remaining color of the sticker.
  • the sticker may have a white base color or be transparent, and at positions superimposed on the two (or three) engraving dots, the sticker may have at least one black dot or circle, that is, the sticker may have two (or three ) have black dots or circles or two (or three) saddle points.
  • a display means may comprise one or more stamped markings, such as two stamped circular arcs of the form "()", in the middle of which, for example, the distance reference point BF of a spectacle lens can be located.
  • the circular arcs may be arranged such that the far reference point is about 8 mm above the zero point (see above).
  • Two horizontal lines to the right and left of it are auxiliary markers for aligning the horizontal lights when checking the cylinder axis.
  • a stamped marking may comprise a remote centering cross, which is located about 4 mm above the zero point (see above).
  • the remote centering is the fitting cross for the exact centering of the glass in front of the eye or the socket.
  • the "horizontal glases" may each comprise two horizontal broken lines temporal / nasal.
  • a specific product engraving in the form of one or more circles or diamonds is arranged between the lines.
  • a stamped marking may include a prism reference point Bp, which preferably coincides with the zero point (see above).
  • the stamped mark may also include a circle around the near reference point BN.
  • the near reference point i. the center of the circle may be offset by about 14 mm down and about 25 mm nasally from the origin.
  • this is a measuring auxiliary point in order, if necessary, to be able to check the proximity at the vertex-value measuring device (also referred to as "SBM").
  • the real lateral offset of the near-vision point may differ depending on the variable inset.
  • stamped markings further or additional
  • markings for example, a schematic eye to mark in particular the remote reference point, plus and minus signs, points to the Mark near reference point, etc.
  • Two recording devices in the sense of the invention are, for example, two digital cameras, which are positioned separately from one another.
  • an image pickup device preferably comprises a digital camera and at least one optical deflection element or mirror, image data of a partial region of a head being recorded or generated by the camera by means of the deflection mirror.
  • Two image recording devices therefore include in the same way, for example, two in particular digital cameras and at least two deflecting elements or mirrors, each representing a digital camera and at least one deflection mirror an image pickup device.
  • two image recording devices can also consist of exactly one digital camera and two deflecting elements or mirrors, with image data being recorded or generated with a time offset by means of the digital camera.
  • image data is generated at a first point in time, wherein a partial area of a head is imaged by means of the one deflection mirror, and at a second time point generates image data which images the partial area of the head by means of the other deflection level.
  • the camera can also be arranged in such a way that image data are generated by the camera at the first and the second time, wherein no deflection mirror is necessary or arranged between the camera and the head.
  • two different or different picking directions mean that different image data are generated from overlapping partial areas of the head, preferably from one and the same partial area of the head, in particular that image data or comparison image data of identical partial areas of the user's head are generated under different perspective views. Consequently, although the same portion of the head is displayed, the image data and comparison image data, however, are different.
  • Different recording directions can also be achieved, for example, by generating the image data from at least two image recording devices, wherein effective optical axes of the at least two image pickup devices are not parallel.
  • dimensioning in box size is understood to mean the measuring system as described in the relevant standards, for example in DIN EN ISO 8624 and / or DIN EN ISO 1366 DIN and / or DIN 58 208 and / or DIN 5340, is described. Further, with regard to the case size and other conventional terms and parameters used, the book “The Optics of the Eye and the Visual Aids” by Dr. Ing. Roland Enders, 1995 Optical Publishing GmbH, Heidelberg, and the book “Optics and Technology of the Glasses” by Heinz Diepes and Ralf Blendowske, 2002 Publisher Optical Publications GmbH, Heidelberg, referenced.
  • the limitation to a dimension in the box dimension includes, for example, sizing points for an eye or both eyes, which are farthest out or inside and / or up or down. These detection points are conventionally determined by tangents to the spectacle frame or the respective areas of the spectacle frame assigned to the respective eyes (compare DIN 58 208, Figure 3).
  • the box size is a lens describing a lens
  • the slice plane normal can be determined from the cross product of the vector between the nasal point and the temporal point and the vector between the top and bottom points of the rim of the glass.
  • the pretilt and the mounting disk angle best correspond to the view through situation here.
  • Breakpoint for the slice plane is approximated as follows: starting point is the center of the vector between the top and bottom points. It is then followed horizontally along the vector between the nasal point and the temporal point in the center of the slice (approximated by the x coordinate). The cross product of the vector between the centers of the slice planes of both sides and the mean of the two vectors of upper and lower frame points determines the normal of the frame plane. Breakpoint is one of the disk centers.
  • the box dimension is determined as a vertical projection of the disc edge on the disc plane.
  • the frame angle can now be determined even for each side as the angle between the respective disc plane and the socket level.
  • the "pupil distance” essentially corresponds to the distance of the pupil centers, in particular in the zero viewing direction.
  • the "zero sighting direction" in the sense of this invention is a viewing direction straight ahead with parallel fixing lines. In other words, it is a viewing direction defined by a position of the eye relative to the head of the user, the eyes looking at an object that is at eye level and located at an infinitely distant point. Consequently, the zero-sighting direction in the sense of this invention is determined only by the position of the eyes relative to the head of the user.
  • the zero direction of view is substantially the horizontal direction in the reference frame of the earth.
  • the zero-sighting direction may be tilted to the horizontal direction in the reference frame of the earth, for example, if the user tilts his head forward or sideways without further movement of the eyes.
  • a plane is spanned by the zero direction of both eyes, which is in the frame of reference of the earth substantially parallel to the horizontal plane.
  • the plane spanned by the two null directions of the two eyes may also be inclined to the horizontal plane in the frame of reference of the earth, for example, if the user tilts the head forward or to the side.
  • the horizontal plane of the user corresponds to a first plane and the vertical plane of the user corresponds to a second plane which is perpendicular to the first plane.
  • the horizontal plane in the user's frame of reference may be parallel to a horizontal plane in the frame of reference of the earth and may pass only through the center of a pupil. This is the case in particular if the two eyes of the user are arranged, for example, at different heights (in the frame of reference of the earth).
  • the eye pivot point of an eye is the point of the eye that is at a
  • Movement of the eye, with a fixed head posture for example one
  • effective optical axes of the image recording devices are those regions of lines which emanate from the center of the respective apertures of the image recording devices perpendicular to these apertures and intersect the imaged partial region of the user's head.
  • the effective optical axes are, in particular, the optical axes of the image recording devices, these optical axes being conventionally arranged perpendicular to a lens system of the image recording devices and starting from the center of the lens system. If there are no further optical elements in the beam path of the image recording devices, such as deflecting mirrors or prisms, the effective optical axis essentially corresponds to the optical axis of the image recording device.
  • the effective optical axis no longer corresponds to the optical axis of the image recording device, as emanates from the image recording device.
  • the effective optical axis is that region of an optionally multiply optically deflected optical axis of an image recording device which intersects the user's head without changing the direction.
  • the optical axis of the image pickup device corresponds to a line extending from a center of an aperture of the image pickup device at a right angle to a plane including the aperture of the image pickup device, wherein the optical axis direction of the image pickup device is controlled by optical elements such as mirrors and / or prisms, is changeable.
  • the term "nearly cut" in the sense of this invention means that the effective optical axes have a minimum distance of less than about 10 cm, preferably less than about 5 cm, more preferably less than about 1 cm. Cutting at least almost means therefore that the effective optical axes
  • the pattern projection device is, for example, a conventional projector such as a commercially available projector.
  • the projected pattern data is, for example, a stripe pattern or a binary sine pattern.
  • the pattern data is projected onto at least a portion of the user's head, and image data and / or comparison image data are generated therefrom by means of the image recording device. From the thus illuminated portion of the head of the user image data and / or comparison image data are generated at a triangulation angle of the image pickup device.
  • the triangulation angle corresponds to the angle between an effective optical axis of the image pickup device and a projection angle of the pattern projection device.
  • phase-shift method is used, wherein on part of the head periodic, in the intensity distribution approximately sinusoidal wave pattern is projected and the wave pattern moves stepwise in the projector.
  • image data and / or comparison image data are preferably generated from the intensity distribution (and the partial area of the head) during a period at least three times.
  • the intensity distribution can be deduced from the generated image data and / or comparison image data, and a phase angle of the pixels relative to one another can be determined, wherein points on the surface of the subregion of the head are assigned to a specific phase position in accordance with their distance from the image recording device.
  • PMD Phase-Measuring Deflectometry
  • an apparatus for determining a position of a pair of spectacles and / or at least one spectacle lens relative to a pupil center of a corresponding eye of a user in the zero viewing direction
  • a data processing device which is designed based on the image data, based on the comparison image data and based on at least the subregion of the auxiliary structure, the position of the spectacles and / or the at least one spectacle lens relative to the pupil center of the corresponding
  • a data output device which is designed to determine the position of the spectacles and / or of the at least one spectacle lens relative to the pupil center of the corresponding eye of the user in FIG
  • a relation of a position of at least one spectacle lens relative to the corresponding pupil can be generated and output, even if a correct image of the pupil (s), in particular the middle of the pupil (s) or the position of the pupil center (s), passes through the spectacle lens.
  • the at least two image recording devices for example due to optical properties and / or tinting and / or mirroring and / or polarization etc. of the at least one spectacle lens is not perfectly possible.
  • the at least two image pickup devices are arranged and configured to generate the image data under at least two different pickup directions and to generate the comparison image data under at least two different pickup directions.
  • the image recording devices are each designed and arranged to image the auxiliary structure in the generated image data such that at least a portion of the auxiliary structure is not imaged through the at least one spectacle lens or through both spectacle lenses.
  • the image recording devices and / or the auxiliary structure are arranged such that at least a subregion of the auxiliary structure can be imaged by the image recording device without optical change, for example due to the optical properties of the spectacle lenses.
  • the auxiliary structure comprises, for example, three points or other two-dimensional structures, etc., and the three points or circles etc. are each at least partially imaged in the image data and the comparison image data.
  • the data processing device is preferably designed to compare actually measured individual parameters of a use position of the at least one spectacle lens in the system of the spectacle lens and eye of the user of the at least one spectacle lens with predetermined individual parameters of the position of use of the at least one spectacle lens in the system spectacle lens and eye of the user.
  • the position of the spectacle lens is specified or determined, in particular, with respect to the pupil center of the corresponding eye in the zero viewing direction.
  • the position of the spectacle lens in particular with respect to the eye pivot point of the corresponding eye, can be specified or determined in the system spectacle lens and eye.
  • the data processing device is designed to compare actually measured individual parameters of a use position of the glasses in the system glasses and head of the user of the glasses with predetermined individual parameters of the use position of the glasses in the system glasses and head of the user of the glasses.
  • the image recording devices are preferably designed and arranged such that in the generated comparison image data of the at least one
  • auxiliary structure for example, an auxiliary point is shown.
  • the pupil in particular the middle of the pupil and the auxiliary structure, are substantially completely imaged.
  • the image recording devices are designed and arranged in such a way that at least one region of the spectacles and / or at least one subregion of the at least one spectacle lens and in the generated image data of the at least one subregion of the head with spectacles arranged thereon and / or at least one spectacle lens arranged thereon the subarea of the auxiliary structure is shown.
  • the auxiliary structure or the auxiliary point is shown substantially completely.
  • the subregion depicted in the image data is
  • a pair of custom glasses regularly has lenses, through this a correct mapping of the pupils of the eyes or a correct determination of the position of the pupils, in particular the pupil centers is not possible, it is still advantageously possible according to the invention a precise position of a pair of glasses or a spectacle frame relative to the pupil or the pupil center (in the zero-viewing direction) of an eye or the pupils of the eyes of the user. This is achieved by, on the one hand, determining the position of a pupil or of a pupil center relative to a subregion of the auxiliary structure and, on the other hand, determining the position of the spectacles relative to the subregion of the auxiliary structure.
  • the subregion of the auxiliary structure is in this case arranged such that the subregion of the auxiliary structure can be imaged by the image recording device (s) without the image passing through a spectacle lens.
  • the at least two image recording devices are each designed and arranged in the image data at least the part of the head of the user with arranged thereon glasses and / or it arranged at least image a lens and at least image a display means, said display means is adapted and arranged , at least one characteristic point, preferably two characteristic points, particularly preferably three characteristic points of the at least one
  • Spectacle lens Engraving points are, as stated above, regularly arranged on the lens such that they are not visible without further aids, ie with the unaided eye. Consequently, engraving points are not or only poorly imaged by an image pickup device.
  • the means of representation which may be for example a monochrome or multicolored sticker, it is advantageously possible to represent a engraving point.
  • the engraving point can also be represented by a marked marking, for example a point or a cross.
  • this label instead of a sticker this label can be attached with a suitable pen.
  • one or more imaging means may be arranged both in color on the spectacle lens, for example by manual recording and / or by automatic marking, and one or more decals may be arranged on the lens.
  • the at least one display means is designed to represent 2, 3 or more engraving points.
  • the at least two image recording devices are each designed and arranged to image in the image data at least the partial area of the user's head with spectacles arranged thereon with a first spectacle lens and a second spectacle lens and to image at least one first presentation means and at least one second presentation means first display means is designed and arranged to represent at least one characteristic point of the first spectacle lens and the second presentation means is designed and arranged to represent at least one characteristic point of the second spectacle lens.
  • two characteristic points of the first spectacle lens and two characteristic points of the second spectacle lens are shown.
  • any spectacle lenses for example mirrored, tinted and / or polarized spectacle lenses can be determined.
  • three-dimensional data of the spectacles or of partial regions of the spectacles or of partial regions of the first and / or the second spectacle lens are preferably generated with the aid of the present device.
  • the three-dimensional data is determined by means of the image data.
  • the image data generated by a first image pickup device is different from the image data generated by a second image pickup device.
  • the differences in the image data arise in particular in that the two image recording devices are preferably arranged at different positions. Due to the preferably different positions of the at least two image recording devices, the respective image data are generated under different perspective views of the spectacles or of the partial region of the spectacles or the partial region of the first and / or second spectacle lenses.
  • the data processing device is designed to determine a position of at least one spectacle lens relative to the spectacle frame on the basis of the image data of at least the partial region of the user's head.
  • the glasses are shown in the image data, wherein one or both lenses may be shown.
  • the data processing device prefferably be designed to determine a position of each spectacle lens relative to the spectacle frame on the basis of the image data of at least the partial area of the user's head.
  • the position of a spectacle lens or both lenses can be determined relative to the spectacle frame.
  • the data processing device is preferably designed to use the image data to determine the position of each characteristic point of a spectacle lens or the position of each characteristic point of both spectacle lenses in the box dimension of the corresponding spectacle lens.
  • an actual position of each characteristic point can thus be compared with a set position of each characteristic point.
  • the data processing device is designed to determine actual centering data of the respective spectacle lens relative to the spectacle frame on the basis of the image data, in particular based on the position of each characteristic point of each spectacle lens in the reference system of the box dimension of the corresponding spectacle lens.
  • the data processing device makes it possible to determine the position, for example, of the centering points or reference points in the box dimension of the spectacle lens.
  • the actual centering data are determined by the correlation of the presentation means (s) with the engraving or reference points or the glass center to the box dimension.
  • the position of the spectacle lens in the frame of reference of the spectacle lens can be determined by means of the data processing device on the basis of the image data become.
  • the data processing device can be designed to determine the position of the characteristic point (s), ie, for example, of the engraving point (s) or centering point (e) in box size. Based on the known position of the at least one engraving point relative to the at least one centering point, the position of the centering point can be determined in box size.
  • the presentation means is designed to represent engraving points of the spectacle lens.
  • the data processing device is particularly preferably designed to determine a deviation of the specific, actual centering data of each spectacle lens from predetermined theoretical centering data, wherein the predefined theoretical centering data are those centering data on the basis of which the corresponding spectacle lens is arranged in the spectacle frame. That is, the theoretical Zentrier poems represent the default for grinding the lens.
  • the spectacle lens is manufactured in accordance with predefined parameters and ground into the socket in accordance with predetermined, theoretical centering data.
  • the actual position of the lens in the socket may differ from the theoretically desired position.
  • Data processing device is preferably designed to detect such a deviation.
  • the data processing device is designed to determine the position of at least one partial area of the auxiliary structure relative to at least one pupil or at least one pupil center point in the zero-viewing direction in three-dimensional space, the position of the spectacles in three-dimensional space and / or the position of the at least one spectacle lens relative to at least to determine this subregion of the auxiliary structure and from it in three-dimensional space the position of the spectacles and / or the position of the at least one spectacle lens relative to determine the at least one pupil or to the at least one pupil center.
  • the position of the spectacles relative to the center of at least one pupil is determined.
  • the position relative to the corresponding eye i. be determined relative to the pupil center of the corresponding eye in the zero viewing direction or relative to the eye pivot point.
  • the auxiliary structure is at least one auxiliary point with a planar extension, for example a sticker which, for example, has the design of a conventional saddle point.
  • the sticker may be attached to the face of a user next to the glasses.
  • the auxiliary structure may also comprise a plurality of auxiliary points, in particular a plurality of stickers.
  • auxiliary point and "auxiliary structure” are used synonymously.
  • An auxiliary structure or an auxiliary point can in particular be a two-dimensional structure, such as a circle.
  • the terms "presentation means” and "representation point” can be used synonymously, wherein a means of representation or a representation point may in particular be a two-dimensional entity, such as a circle.
  • the / the auxiliary point (s) located on the face is measured in a first shot together with the pupil position.
  • the parameters of the spectacles or of the first and / or the second spectacle lens are measured in relation to / to the auxiliary point (s).
  • three-dimensional data of the partial region of the head or of the system of the at least one spectacle lens and of the corresponding eye or both spectacle lenses and the corresponding eyes are preferably generated on the basis of the present device.
  • the three-dimensional data is determined by means of the image data.
  • the image data generated by a first image pickup device is different from the image data generated by a second image pickup device.
  • the differences in the image data arise in particular in that the two image recording devices are preferably arranged at different positions. Due to the preferably different positions of the at least two image recording devices, the respective image data are generated under different perspective views of the head or the partial region of the head.
  • location relations in the three-dimensional space of the user data relative to one another can be determined in a simple manner and the optical parameters of the user can be determined therefrom.
  • a plurality of optical information required for describing the position of use of a pair of spectacles or spectacle lenses can advantageously be used Parameters of the user can be precisely and easily determined without it being necessary to image the pupil or pupils of the user through spectacle lenses. This is for example advantageous if the lenses do not allow precise imaging due to their optical effect, in particular allow no precise determination of the position, or the lenses are tinted and the pupils or pupil centers are bad or no longer visible.
  • optical parameters relative to the auxiliary point can be determined, and based on the known position of the auxiliary point relative to the pupil, the optical parameters relative to the pupil can be determined or calculated. This applies analogously for two or more auxiliary points as well as for both pupils.
  • comparison image data of largely overlapping subareas, in particular of the same subarea of the user's head are also generated by the two image recording devices, wherein the image recording devices are designed and arranged such that at least one pupil of the user is completely imaged in the generated comparison image data.
  • the generated comparison image data is used to determine the user data in which a pupil of the user is completely mapped.
  • the comparison image data generated by the two or more image pickup devices one and the same pupil of the user is fully mapped and one and the same helper point is completely mapped.
  • both pupils of the user and, for example, two or more auxiliary points can be imaged in the comparison image data of the two image recording devices.
  • the spectacles and / or the spectacle frame and / or a pupil-detecting edge and / or a spectacle-lens edge and a or several auxiliary points are shown.
  • the data processing device further comprises a user data determination device which is designed to use the generated image data and the comparison image data user data at least a portion of the head or at least a portion of a system of the head and at least one of the user and / or the system disposed therein in use position glasses Spectacle lens and a corresponding eye, the user data comprising location information in the three-dimensional space of predetermined points of the subarea of the head or of the subarea of the system, in particular location information for at least one of the following points:
  • Position of the pupil is determined by the position of the at least a portion of the auxiliary structure
  • the data processing device further comprises a parameter determination device for determining optical parameters, wherein the optical parameters comprise at least one of the following values of the user:
  • optical parameters preferably further comprise an eye rotation point of an eye and / or parameters on the basis of which a dynamic visual behavior of a user can be determined, such as, for example, convergence of an eye position and / or gaze deflection.
  • the optical parameters particularly preferably include physiological and anatomical parameters of a spectacle wearer, assessment-specific properties and features of a system ophthalmic lens-eye of the user, which is described, for example, in DIN 58208.
  • the features of the eyeglass-eye system of the user can be used, for example, for the calculation of spectacle lenses and for the exact centering of spectacle lenses, centering data according to the cited standards exactly with respect to a disc or a Be determined.
  • the slice plane here is the plane through a horizontal and vertical (in the reference frame of the earth) center line in the right and left caste system in the spectacle frame.
  • the socket plane is the plane through mutually vertical center lines of the right and left disc plane of the spectacle frame defining cadding systems.
  • the data processing device is preferably a computer or microprocessor. Further, the user data determining means and the parameter determining means may operate independently of each other. Preferably, the
  • User data determination device and the parameter determination device are operated by means of a microprocessor.
  • the data processing device is designed such that a microprocessor executes both the task (s) of the user data determination device and the parameter determination device.
  • a two-dimensional image of at least a portion of the head of the user is generated by each image recording device.
  • Each of the images of the image data and / or the comparison image data includes an auxiliary point or at least two auxiliary points, preferably three auxiliary points.
  • image data and / or comparison image data, which are generated by an image recording device have only one auxiliary point.
  • image data and / or comparison image data which are generated by a further image recording device may include two or more auxiliary points. If both pupils are shown in a picture, it is not necessary to arrange or map two auxiliary points.
  • At least one auxiliary point is imaged in all image data used for further evaluation, and at least one spectacle-edge and / or spectacle-lens edge is imaged, with all these image data being the same auxiliary point. Furthermore, the spectacle-detecting edge or spectacle-lens edge assigned to the illustrated auxiliary point is imaged.
  • the image capture devices are also designed and arranged such that in the two-dimensional image data, the image of the auxiliary point is outside the image of the spectacle frame or spectacle lens edge.
  • one or more auxiliary points and one or both pupils are imaged in the comparison image data.
  • Image pickup devices are disposed within a space area encompassed by a cone having a predetermined opening angle, the cone apex of the cone being disposed in an environment of a predetermined reference point and the cone axis being parallel to a predetermined direction, wherein the user's zero direction direction is the predetermined direction equivalent.
  • the image pickup devices are preferably arranged in a cone volume.
  • the tip of the cone is located at a distance of less than about 20 cm, preferably less than about 10 cm, preferably about 0 cm from the reference point.
  • the location of one of the user's pupils or the root of the user's nose corresponds to approximately the predetermined reference point.
  • the user may be positioned so that the location of one of the user's pupils or the nose root is approximately at the predetermined reference point, i. essentially the apex of the cone.
  • the distance between the cone tip of the cone and one of the pupils or the root of the nose of the user is preferably less than about 20 cm, more preferably less than about 10 cm, particularly preferably about 0 cm.
  • the opening angle of the cone is less than 90 °, further preferably between about 60 ° and about 10 °, more preferably between about 45 ° and about 20 °, in particular about 30 °.
  • the opening angle here corresponds to the angle between the axis of symmetry of the cone and the lateral surface of the cone, wherein the cone is rotationally symmetrical.
  • the cone volume can be described by rotation of a right-angled triangle, with the triangle rotating about a catheter and the lateral surface of the cone being described by means of the rotation of the hypothenuse of the right-angled triangle.
  • the opening angle of the cone corresponds to the angle between the hypotenuse and the axis of rotation, ie the said right angle triangle.
  • image pickup devices By arranging the image pickup devices on a cone with an opening angle of preferably about 30 °, user data can advantageously be determined very effectively, since comparison image data can be generated without the user's pupil being obscured, for example, by a nose of the user.
  • effective optical axes of the image pickup devices intersect at least almost, wherein an intersection angle between about 60 ° and about 10 °, preferably between about 45 ° and about 20 °, more preferably about 30 °.
  • the zero viewing direction of the user is operatively arranged substantially parallel to the effective optical axis of at least one of the image pickup devices.
  • at least one of the image pickup devices in the operating state, at least one of the image pickup devices is arranged such that the zero viewing direction of the user can be arranged substantially parallel to the effective optical axis of these image pickup devices, or the user can position such that the zero direction thereof is substantially parallel is arranged to the effective optical axis of these image pickup devices.
  • the effective optical axis of at least one of the image pickup devices is arranged substantially parallel to a horizontal direction in the reference frame of the earth.
  • the user's horizontal plane is operationally arranged such that the effective optical axis of at least one of the image pickup devices is therein. That is, in the operating state of the apparatus of the present invention, at least one of the image pickup devices is preferably arranged so that the user can position themselves or the user can be positioned so that the user's horizontal plane comprises the effective optical axis. In operation, the user can thus align his head so that the horizontal plane preferably includes the effective optical axis of the image pickup device.
  • the horizontal plane may preferably also be the horizontal plane in the frame of reference of the earth.
  • one of the image pickup devices is arranged in the operating position such that its effective optical axis at least almost intersects the root of the nose of the user.
  • the user in the operating state of the device of the present invention, the user may preferably be positioned such that the effective optical axis of at least one of the image pickup devices almost intersects the root of the user's nose.
  • Near-cut means here that the minimum distance between the effective optical axis and the root of the nose of the user is less than about 10 cm, preferably less than about 5 cm, more preferably less than about 1 cm.
  • At least one of the image pickup devices is arranged in the operating position such that its effective optical axis is arranged substantially symmetrically with respect to the pupils of the user.
  • Symmetrically arranged with respect to the pupils means in the sense of this invention, that each point on the effective optical axis is equidistant from the two pupils of the user.
  • the effective optical axis lies in a plane which is perpendicular to a connecting path of the centers of the two pupils and bisects this connection path.
  • the effective optical axes of the at least two image pickup devices almost intersect.
  • the effective optical axes of the at least two image pickup devices are arranged such that a location of minimum distance of the two effective optical axes from both pupils of the user is equidistant.
  • a location of minimum distance of the effective optical axes corresponds to the location of the root of the nose of the user.
  • the effective optical axes at least nearly intersect, with the intersection of the effective optical axes and the minimum distance point from the effective optical axes being symmetrical with respect to the pupils of the user, preferably corresponding to the location of the user's nose.
  • projections of the effective optical axes of the at least two imaging devices intersect at a horizontal plane in the frame of reference of the earth at a cutting angle which is between about 10 ° and about 60 °, preferably between about 15 ° and about 40 °, most preferably about 23, 5 °, whereby a simplified selection of the user data is achieved.
  • the preferred apparatus of the present invention determine user data of the user even in spectacle frames with very wide brackets or sports eyewear frames, which substantially obscure the eye laterally.
  • the sports glasses have tinted lenses, through which the pupils are only conditionally or not visible.
  • projections of the effective optical axis of the at least two imaging devices intersect at a vertical plane in the frame of reference of the earth at a cutting angle which is between about 10 ° and about 60 °, preferably between about 15 ° and about 40 °, most preferably about 23.5 ° ,
  • the zero-viewing direction of the user in the operating position, is arranged parallel to the horizontal plane in the frame of reference of the earth.
  • the user data determining means comprises user data positioning means adapted to associate predetermined user data positions in the two-dimensional space of the image data.
  • user data i. Location information in three-dimensional space, displayed on location information in two-dimensional space.
  • the pupil center is imaged in the generated two-dimensional image data.
  • the user data positioning means is arranged such that the positions in the image data associated with at least a part of the predetermined user data are assignable by a person.
  • the positions in the image data associated with at least a part of the predetermined user data are assignable by a person.
  • limitations of at least one spectacle lens of the user can be assigned by a person to a dimension in the box dimension.
  • the user data positioning device is designed to predetermine positions of the image data associated with the predetermined user data, taking into account location information of at least one of the image recording devices in three-dimensional space.
  • the assignment of the positions in the image data can be performed by a person.
  • the assignment however, the positions are preferably not possible for all existing positions, but only for a predetermined selection of positions.
  • the point of intersection of a horizontal plane in the reference system of the user with the spectacle lens edges can preferably not be assigned completely along the spectacle lens edges, but only along one or more lines in the image data.
  • the user data positioning device is designed to automatically allocate at least a portion of the user data positions in the two-dimensional space of the image data. For example, in the two-dimensional space of the comparison image data, the positions of the pupil centers can be automatically assigned or determined.
  • the at least two image recording devices are designed to generate image data and / or comparison image data at the same time, the image recording devices particularly preferably simultaneously generating image data and / or comparison image data from both eyes of the user.
  • each of the image recording devices simultaneously generates comparison image data of at least one subregion of the auxiliary structure, preferably at least two auxiliary points and the two eyes.
  • each of the image recording devices simultaneously generates image data of the spectacles and / or the at least one spectacle lens and of at least one subregion of the auxiliary structure, preferably of at least two auxiliary points.
  • the image recording devices are preferably designed to generate image data and / or comparison image data of the user, for example, sequentially for a multiplicity of different viewing directions of the user.
  • image data and / or comparison image data can be included different discrete viewing directions, ie discrete deflections of the eyes are generated.
  • image data and / or comparison image data are generated at different discrete head orientations.
  • the data processing device is particularly preferably designed to determine a viewing behavior of the user on the basis of the plurality of comparison image data.
  • the viewing direction can be controlled using fixation targets.
  • Fixation targets may be one or more bulbs such as LEDs (hereinafter referred to as LEDs or LEDs) LEDs are in an optically finite distance, which light up in different colors and / or at different times.
  • the LEDs can be arranged at different positions in space. By deliberately driving certain LEDs, it is possible to deflect a user's gaze in a certain direction, as long as the user is looking at the luminous or LEDs.
  • each eye is offered its own LED, both LEDs can glow in the same or different color.
  • the right eye LED may glow green
  • the left eye LED may be red. Other colors can be used.
  • the LEDs are arranged such that they are due to optical imaging for the viewer in the optically infinite point.
  • the imaging to infinity occurs only in a major section, e.g. through a cylindrical lens. Most preferably, this main section is horizontal.
  • static and / or moving real and / or virtual images could be displayed, for example conventional 3D holograms or conventional 3D monitors, where distance and Position of the images can be changed so that specific situations can be modeled.
  • Corresponding devices for displaying such images are described, for example, in http://www.gfai.de/3d_display_if or http://www.seereal.de.
  • a viewing behavior of the user can be determined on the basis of the plurality of comparison image data.
  • the comparison image data can be generated in a very rapid time sequence by means of the image recording devices, so that the data processing device can determine a substantially continuous visual behavior of the user.
  • a deviation of an actual position of use of the spectacles or the first and / or the second spectacle lens from a desired use position of the spectacles or of the first and / or the second spectacle lens can advantageously be indicated.
  • the desired use position here is the position of use of the spectacles or the first and / or the second spectacle lens in the system consisting of spectacle lens or glasses and corresponding eye (s) of the user, for which the individual spectacle lenses were determined and made, in particular the actual position of one or both lenses is taken into account in the spectacle frame.
  • the position of the at least one spectacle lens relative to the pupil center of the corresponding eye can be determined when the eye is aligned in the zero-viewing direction or relative to the eye-pivot point of the corresponding eye.
  • the deviation of an actual position of use of the at least one spectacle lens from a desired position of use of the at least one spectacle lens can be specified.
  • the desired use position here is the position of use of the spectacle lens in the system consisting of spectacle lens and the corresponding eye, in front of which the spectacle lens is arranged.
  • the user's eye is called the the eyeglass corresponding eye of the user referred to, for which the individual lens was determined and made.
  • the term "spectacles" in the sense of this invention may therefore be synonymous with "a spectacle lens with or without spectacle frame” or with "both spectacle lenses with or without spectacle frame".
  • the desired use position can be determined, for example, with the device described above and stored in a memory device of the device.
  • the desired use position can also be stored in a database.
  • the actual position of use describes the position of the glasses produced in the eyeglass-eye system of the user or the position of the at least one eyeglass lens in front of the corresponding eye when the user wears the eyeglasses or the at least one spectacle lens.
  • the actual use position or the desired use position is determined for example on the basis of individual parameters, such as the corneal vertex distance and / or other conventional parameters, as indicated for example in the above-cited DIN standards and cited books.
  • one or more of the individual parameters of the actual use position deviates from one or more of the individual parameters of the desired use position, these parameters can be corrected by an optician, wherein in particular the actual position of one or both lenses relative to the spectacle frame can be used in the correction. Subsequently, the new, actual use position can be determined and compared with the desired use position. If necessary, the actual position of use can be adjusted again. This process can be repeated.
  • one or more imaging means can be attached to a spectacle lens or both spectacle lenses, which make it possible to determine the centering of the spectacle lens in the socket. With known, actual centering the shape of the spectacle frame can be repeatedly corrected and checked until the actual use position corresponds to the desired use position.
  • At least one image recording device which is designed and arranged
  • At least one pattern projection device which is designed and arranged to project predetermined pattern data onto at least partial areas of the user's head
  • a data processing device which is designed to use the image data, the comparison image data and the auxiliary structure to determine the position of the spectacles and / or the at least one spectacle lens relative to the pupil center of the corresponding eye in the zero viewing direction of the spectacle
  • a data output device which is designed to output the position of the spectacles and / or the at least one spectacle lens relative to the pupil center of the corresponding eye in the zero viewing direction of the user.
  • the apparatus comprises exactly one image pickup device and exactly one pattern projection device, whereby also according to this aspect of the invention, analogously to the preceding aspect of the invention, advantageously three-dimensional user data of the subarea of the head or the subarea of the system are generated.
  • the three-dimensional user data can advantageously be generated on the basis of image data of only one image recording device.
  • the three-dimensional data is generated by means of the principle of phase-measuring triangulation.
  • the head or the partial area of the head pattern data are superimposed or projected by means of the pattern projection device.
  • the image recording device generates image data of the at least partial area of the head in the two-dimensional space.
  • a surface texture of the portion of the head, i. the coordinates in the third dimension is generated by phase information of the projected pattern data indirectly via intensity patterns.
  • three-dimensional user data can be generated. Based on the three-dimensional user data, the optical parameters of the user, analogous to the preceding aspect of the invention, can be determined using only one image pickup device. Likewise, as described above, an auxiliary point is used to determine the position of the pupil relative to the spectacles or the corresponding pupil relative to the first and / or the second spectacle lens.
  • a further aspect of the present invention relates to a method for determining a position of spectacles and / or at least one spectacle lens relative to a pupil center of a corresponding eye of a user in the zero viewing direction, comprising the following steps:
  • the at least one subregion of the substructure is not imaged through the at least one spectacle lens.
  • the method comprises the further step:
  • the method comprises the further step:
  • Glasses in the system Glasses and head of the user of the glasses.
  • the method comprises an initial step:
  • Spectacle lens based on at least one display means or more presentation means.
  • the at least one representing means is mapped in the image data
  • Zero viewing direction determines a position of at least one spectacle lens relative to the spectacle frame based on the image data, in particular the position of the at least one display means.
  • the position of a spectacle lens or both spectacle lenses of the spectacles can be determined. Furthermore, after the initial step of displaying the characteristic point of one or both spectacle lenses, one or more, in particular all subsequent steps can be repeated, in particular iteratively. In this case, for example, it is possible to detect and correct the position of the spectacles or the spectacle lens or both spectacle lenses in front of the eye.
  • actual centering data of the at least one spectacle lens relative to the spectacle frame is determined based on the image data, in particular the position of the at least one representation means.
  • predetermined, theoretical centering data are those centering data on the basis of which the at least one spectacle lens was arranged in the spectacle frame.
  • the image data is generated under at least two different shooting directions and the comparison image data is generated under at least two different shooting directions.
  • the step of determining the position of the spectacles and / or the position of the at least one spectacle lens comprises a step of determining a position of at least the subregion of the auxiliary structure in both the comparison image data and the image data.
  • the step of determining the position of the spectacles and / or the position of the at least one spectacle lens further comprises
  • the process comprises:
  • the individual parameters are particularly preferred on the basis of the position of the spectacles and / or the position of the at least one spectacle lens relative to the at least one subregion of the auxiliary structure and the position of the at least one subregion of the auxiliary structure relative to the pupil center of the corresponding eye in the zero viewing direction pupil or pupil center certainly.
  • the method is carried out using at least two auxiliary structures, in particular at least two auxiliary points.
  • the method is particularly preferably carried out on the basis of at least three auxiliary structures, in particular of at least three auxiliary points.
  • the method is particularly preferred for both lenses, i. for both pupils or both pupil centers, in particular carried out at the same time.
  • Another aspect of the present invention relates to a method for determining the position of spectacles relative to a user's head with an image capture device and a pattern projection device.
  • a computer program device having program parts which, when loaded in and executed by a computer, are suitable for carrying out the method according to the invention.
  • Figure 1 is a perspective schematic view of a preferred embodiment of the apparatus of the present invention in the operative position;
  • FIG. 2 shows a schematic sectional view in a top view of an arrangement of the image recording devices according to FIG. 1 in the operating position;
  • Figure 3 is a schematic sectional view from the side of an arrangement of
  • Figure 4 is a schematic sectional view in plan view of another preferred embodiment of the present invention in the operating position;
  • FIG. 5 is a schematic view of exemplary image data
  • FIG. 6 is another schematic view of exemplary image data
  • FIG. 7 shows a schematic view of exemplary comparison image data
  • FIG. 8 exemplary image data according to FIG. 5;
  • FIG. 9 exemplary image data according to FIG. 6;
  • FIG. 10 exemplary output data
  • FIG. 11 an exemplary saddle point
  • FIG. 12 shows a conventional device for determining engraving tags.
  • FIG. 1 shows a schematic perspective view of a device 10 according to a preferred embodiment of the present invention.
  • the device 10 comprises an arrangement device in the form of a housing or a pillar 12, on which a first image recording device in the form of an upper camera 14 and a second image recording device in the form of a lateral camera 16 is arranged. Furthermore, a data output device in the form of a monitor 18 is integrated into the column 12.
  • the upper camera 14 is preferably located in the interior of the column 12, for example as shown in Figure 1, at least partially at the same height as the monitor 18. In the operating position, the upper camera 14, and the lateral camera 16 are arranged so that an effective optical axis 20 of the upper camera 14 with an effective optical axis 22 of the lateral camera 16 at an intersection point 24 intersect.
  • the point of intersection 24 of the effective optical axes 20, 22 is preferably the point of a root of the nose (see FIG. 2).
  • the upper camera 14 is preferably arranged centrally behind a partially transparent mirror 26.
  • the image data or comparison image data of the upper camera 14 are generated by the partially transmissive mirror 26 therethrough.
  • Comparative image data (hereinafter referred to as images) of the upper camera 14 and the lateral camera 16 are preferably output to the monitor 18.
  • the lighting means 28 may be, for example, light sticks, such as
  • the lighting means 28 may also each include one or more bulbs, halogen lamps, light-emitting diodes, etc.
  • the effective optical axis 20 of the upper camera 14 is disposed parallel to the zero-viewing direction of a user 30.
  • the zero-view direction corresponds to the fixation line of the eyes of the user in the primary position.
  • Camera 16 is arranged such that the effective optical axis 22 of the lateral
  • Camera 16 intersects the effective optical axis 20 of the upper camera 14 at an intersection 24 at an intersection angle of approximately 30 °.
  • the point of intersection 24 of the effective optical axes 20, 22 is preferably the point of a nose root (see FIG In the preferred embodiment of the apparatus 10 of the present invention, the effective optical axis 22 also intersects the zero viewing direction at an angle of 30 °.
  • the cutting angle of 30 ° is a preferred cutting angle. There are also other cutting angles possible. Preferably, however, the cutting angle is less than about 60 °.
  • the effective optical axes 20, 22 intersect. Rather, it is also possible that the minimum distance of the effective optical axes from the location of the root of the nose of the user 30 is, for example, less than approximately 10 cm. Furthermore, it is possible for another lateral camera (not shown) to be arranged on the pillar 12, wherein the further lateral camera is, for example, at an angle to the lateral camera 16.
  • the upper camera 14 and the lateral camera 16 may be arranged such that their positions, and in particular their effective optical axes, may for example be adapted to the size of the user 30.
  • the determination of the relative positions of the cameras 14, 16 to each other can be made by means of a known calibration method.
  • the cameras 14, 16 can furthermore be designed, for example, to generate individual images of a subarea of the head of the user 30 in each case. But it is also possible that based on the cameras 14, 16 video sequences are recorded and these video sequences are used for further evaluation. Preferably, however, individual images are generated at the cameras 14, 16 and these individual images are used for further evaluation, wherein the upper camera 14 and the lateral camera 16 are time-synchronized, ie record or generate images of the preferably identical subregion of the user's head 30 at the same time. Furthermore, it is possible for both cameras 14, 16 to record images of different areas of the user's head 30. However, the pictures of the two cameras contain at least an identical subarea of the user's head 30.
  • the user In the operative position, the user is preferably positioned so that his gaze is directed to the partially transmissive mirror 26, the user gazing at the image of his nasal root (see Figure 2) in the mirror image of the partially transmissive mirror 26.
  • the column 12 may have any other shape or represent a different type of housing in which the cameras 14, 16 and, for example, the bulbs 28, the partially transparent mirror 26 and the monitor 18 are arranged.
  • device 10 may for example be designed so that the positions of the upper camera 14 and the side camera 16 and, for example, the partially transparent mirror 26 and the lighting means 28 are arranged vertically adjustable.
  • the upper camera 14 can therefore also be located above or below the monitor 18.
  • the side camera 16 may be replaced by a pattern projection device such as a conventional projector, and the three-dimensional user data may be determined by a conventional method such as phase measuring triangulation.
  • FIG. 2 shows a schematic plan view of preferred arrangements of the cameras 14, 16 in the operating position and the positioning of a user 30 in the operating position.
  • projections of the effective optical axes 20, 22 intersect at a horizontal plane in the frame of reference of the earth at an angle of 23.5 °.
  • the intersection angle between the effective optical axes 20, 22 in the plane, which is spanned by the two effective optical axes 20, 22 is, as shown in Figure 1, 30 °.
  • the intersection 24 of the effective optical axes 20, 22 corresponds to the location of the root of the nose of the user 30.
  • a position of the lateral camera 16 may be variable along the effective optical axis 22, for example.
  • the position 32 of the lateral camera 16 corresponds for example to the position as it is also shown in FIG.
  • the lateral camera 16 may, for example, however, also be arranged offset along the effective optical axis 22 at a position 34, preferably the lateral camera 16 can be positioned as desired.
  • at least one pupil (not shown) of the user and at least one spectacle lens edge 36 or a spectacle-detecting edge 36 of a spectacle 38 of the user must be imaged.
  • the pupil preferably has to be completely imaged within the eyeglass frame or glass rim 36 of the eyeglasses 38.
  • the upper camera 14 can be positioned differently.
  • the position of one or both lenses relative to the eyeglass frame is to be determined and checked, for example, it is not necessary for the user 30 to wear the eyeglasses 38 for determining the position of the lens relative to the eyeglass frame on the head. Rather, the position of the spectacle lens relative to the spectacle frame can also be determined independently of the user 30.
  • the glasses 38 may be stored on a shelf, such as a table (not shown). Consequently, the device can therefore also be designed differently, for example, have a different dimension.
  • the device may also be smaller than shown in FIG.
  • the device may only have the two cameras 14, 16, which may be arranged substantially stationary relative to one another.
  • the cameras are designed with a computer connectable, allowing a data exchange between the cameras 14, 16 and the computer is possible.
  • the device can also be designed to be mobile.
  • the image recording devices, ie the cameras 14, 16, may be arranged separately from the data processing device, ie the computer, in particular housed in separate housings.
  • the glasses are worn by someone other than the actual user.
  • Figure 3 shows a schematic sectional view of the arrangement of the cameras 14, 16 in the operating position and a position of the user 30 in the operating position, from the side as shown in Figure 1.
  • the lateral camera 16 can be positioned along the effective optical axis, for example at the position 32 or at the position 34.
  • the projection of the effective optical axes 20, 22 onto a vertical plane in the reference frame represented the earth.
  • the angle between the effective optical axes 20, 22 is for example 23.5 °, which corresponds to an intersection angle of 30 ° in the plane, which is spanned by the effective optical axes 20, 22.
  • FIG. 4 shows in plan view a sectional view of a second preferred embodiment of the device 10 according to the present invention.
  • the upper camera 14 has an optical axis 40.
  • the optical axis 40 corresponds to a line extending from a center of the aperture (not shown) of the upper camera 14 and perpendicular to the plane of the aperture (not shown) of the upper camera 14.
  • a beam splitter 42 in the beam path of the camera 14.
  • the beam splitter 42 is for example designed such that it can be changed between two modes: -
  • the beam splitter 42 is either almost completely mirrored or
  • the beam splitter is almost completely transparent to light.
  • the optical axis 40 of the upper camera 14 is not deflected, but intersects the user 30's head at the intersection 24.
  • the effective optical axis 20 corresponds to the optical axis 40 of the upper camera 14.
  • the optical axis 40 of the upper camera 14 is deflected by the beam splitter 42 according to known optical laws, as shown in Figure 4.
  • the optical axis 40 is deflected by an angle of 90 ° in a first deflected portion 44 of the optical axis 40 of the upper camera 14.
  • the first deflected portion 44 intersects another optical element, such as a deflecting mirror 46.
  • the first deflected portion 44 of the optical axis 40 is redirected according to the conventional optical laws into a second deflected portion 48 of the optical axis 40.
  • the second deflected portion 48 of the optical axis 40 intersects the head of the user 30.
  • the second deflected portion 48 of the optical axis 40 corresponds to the effective axis 22 of the upper camera 14 in the event that the beam splitter 42 is completely mirrored.
  • images of the portion of the head of the user 30 are generated with a time delay, wherein the images are generated either in fully mirrored beam splitter 42 or completely transparent beam splitter 42.
  • two images of the partial area of the head of the user 30 can be generated on the basis of the upper camera 14, which images correspond to the images that can be generated according to FIG. 1, 2 or 3.
  • the images are time-shifted generated by an image capture device, the upper camera 14.
  • FIG. 5 shows a schematic view of image data as from the upper one Camera 14 are generated, ie a schematic frontal view of a portion of the head of a user 30, wherein only two lenses 50, and a spectacle frame 52 and a saddle point 53 as a preferred auxiliary point and two saddle points 153, 253 are shown as preferred means of presentation.
  • FIG. 5 shows a boundary 62 of the right eye eyeglass frame 52 (not shown) and a left chest frame 52 bezel frame 52 (not shown) in box dimension, and intersection points 66 a horizontal plane with the eyeglass detection edge 52 in the user's frame of reference with respect to the right eye (not shown) and points of intersection 68 of a vertical plane in the reference system of the user 30 to the horizontal plane of the user 30.
  • the horizontal plane is shown by the dashed line 70, the vertical plane by the dashed line 72.
  • Each saddle point 53, 153, 253 may be a sticker, for example. It is also possible that two saddle points 53 are used, one saddle point being assigned to the left eye (not shown) and one saddle point to the right eye (not shown).
  • 9 saddle points 53, 153, 253 are used, with three saddle points 153 on one spectacle lens (not shown), three saddle points 253 on the other spectacle lens (not shown), and three saddle points 53 on the head, for example, the forehead of the user are arranged (not shown) to a position of each lens relative to the corresponding eye, ie to determine the corresponding pupil or the corresponding pupil center in three-dimensional space.
  • intersection points 74 of a horizontal plane and intersections 76 of a vertical plane for the left eye are shown, with the horizontal plane being shown by dashed line 78 and the vertical plane being indicated by dashed line 80.
  • the saddle point 53 is automatically from a User data positioning device (not shown) detected and determined.
  • FIG. 6 shows a schematic view of the image data of the lateral camera 16 according to FIG. 5. Since the lateral camera 16 is located laterally below the partial area of the head of the user 30, intersections of a horizontal and a vertical plane with the edges of the spectacle frame 52 are not horizontal or vertical lines, as is the case in FIG. Rather, straight lines on which intersection points lie with the horizontal plane and the vertical plane are projected onto oblique lines 84 on the basis of the perspective view of the lateral camera 16. The horizontal plane 70 and the vertical plane 72 therefore intersect the edge 36 of the eyeglass frame 52 at the locations where the projected lines 84 intersect the edge 36 of the eyeglass frame 52, respectively.
  • three-dimensional coordinates of the system may be spectacle lens 50 and eye (n) (not shown) are generated. Furthermore, certain points in box size can be used to determine the three-dimensional coordinates. Alternatively, the three-dimensional coordinates can be generated at least partially, if appropriate, also by means of the points determined according to box dimensions.
  • the positions in the image data that is, the intersections 66, 68, 74, 76 and the saddle point 53 relative to the pupil centers (not shown) of the eyes (not shown), knowing the positions of the upper camera 14 and the side camera 16
  • the intersections 66, 68, 72, 74 and saddle point 53, respectively, may be determined by an optician and entered from a computer mouse (not shown).
  • the monitor 18 may be designed as a "touch screen" and the intersection points 66, 68, 72, 74 and the saddle point 53 may be determined and entered directly on the basis of the monitor 18.
  • these data can also be generated automatically using image recognition software.
  • a Software-supported image evaluation is subpixel accurate.
  • the positions of further points of the spectacles 38 can be determined and used to determine the optical parameters in three-dimensional space.
  • optical parameters of the user 30 can be determined, in which determination head and eye movements can be considered.
  • a plurality of images is generated without glasses 38 arranged, wherein the user 30 performs a head movement or, for example, a moving object followed with the eyes.
  • images without arranged spectacles 38 with discrete head or eye deflections which can be used, for example, for determining a convergence behavior of the eyes or for determining differences in the eye-deflection behavior.
  • the user is preferably positioned in the primary position and, as shown in Figure 2, for example, the effective optical axis 20 of the upper camera 14 and the central parallel of the lines of fixation of the eyes 54,56 in the primary position are identical.
  • Another embodiment of the device 10 of the present invention is designed so that only one side, that is, either the right side corresponding to the right eye (not shown) or the left side corresponding to the left eye (not shown), both from the upper camera 14 and the lateral camera 16 is shown.
  • the optical parameters of the user 30 are determined on the one hand and the symmetrical assumptions are used to determine the optical parameters for both sides.
  • FIG. 7 shows a schematic view of comparison image data as generated by the upper camera 14, ie a schematic frontal view of a portion of the head of a user 30 in the absence of glasses, wherein only a right eye 54 and a left eye 56 of the user 30 are shown.
  • a pupil center 58 of the right eye 54 and a pupil center 60 of the left eye 56 are shown in FIG.
  • Figure 7 shows the Saddle point 53.
  • pupil centers 58, 60 and saddle point 53 are automatically determined by a user data positioning device (not shown).
  • reflexes 82 are used, which arise on the cornea of the respective eyes 54, 56 due to the light sources 28. Since, according to the embodiments of the device 10 of the present invention shown in FIG. 1, for example, three light sources 28 are arranged, three reflections 82 are imaged per eye 54, 56. The reflections 82 arise for each eye 54, 56 directly at the piercing point of a respective illuminant fixation line on the cornea.
  • the illuminant fixing line (not shown) is the connecting line between the location of the respective illuminant 28, which is imaged centrally on the retina, and the respective pupil center 58, 60 of the corresponding eye 54, 56.
  • the extension of the illuminator fixation line (not shown) ) goes through the optical eye pivot (not shown).
  • the lighting means 28 are arranged so that they lie on a conical surface, wherein the tip of the cone at the pupil center 58 and 60 of the right eye 54 and left eye 56 is located.
  • the axis of symmetry of the cone is arranged starting from the apex of the cone parallel to the effective optical axis 20 of the upper camera 14, wherein the three lighting means 28 are further arranged so that connecting lines of the apex and the respective illuminant 28 intersect only in the apex of the cone.
  • the pupil center 58 or 60 of the right eye 54 and the left eye 56 can be determined and, in particular, the position in the three - dimensional space of the saddle point 53 relative to the pupil center 58 or 60 of the right eye 54 and the left eye 56, respectively.
  • FIGS. 8 and 9 show images which are generated, for example, by the upper camera 16 (FIG. 8) and the lateral camera 16 (FIG. 9). The pictures further show the intersections 66, 68 of the horizontal plane 70 and the vertical plane 72. In FIG. 9, projections of the possible intersections of the horizontal plane 70 and vertical plane 72 with the edge 36 of the spectacle frame 52 are shown, taking into account the perspective view of the lateral camera 16, as a straight line 84.
  • the optical parameters ie, for example, pupil distance, corneal vertex distance, socket disc angle, pretilt, and buff height
  • the user 30 looks at the image of his nose bridge in the partially transmissive mirror 26 from a distance of about 50 to about 75 cm.
  • the user 30 is at a distance of about 50 to about 75 cm semitransparent mirror 26, and looks at the image of his face in the partially transparent mirror 26, in particular on his nose root.
  • the position of the eyes 54, 56, which results from the viewed object, that is the convergence of the eyes 54, 56, can be taken into account in the determination of the optical parameters and, for example, compensated for rotation of the eyes in the determination of the optical parameters, for example a virtual zero-sighting direction can be determined taking into account the actual gaze deflection and based on the virtual, ie the determined and not measured zero-sighting direction, the optical parameters of the user can be determined.
  • the distance between the user 30 and the cameras 14, 16 may be low.
  • the optical parameters are already approximately predetermined.
  • the goggles 38 may be pre-fitted and the optical parameters determined by the apparatus 10 of the present invention for the one previously adopted.
  • the device 10 is designed according to a further preferred embodiment, the pretilt angle of the spectacles 38 for each spectacle lens from the angle between the straight line through the upper intersection 68 and the lower Intersection point 68 of the vertical section plane 72 with the edge 36 of the spectacle frame 52 to calculate in three-dimensional.
  • an average pretilt may be determined from the pretilt determined for the right eye 54 and the pretilt determined for the left eye 56.
  • a warning may be issued if the front inclination of the right spectacle lens deviates from the front inclination of the left spectacle lens by at least a predetermined maximum value. Such an indication can be output, for example, by means of the monitor 18.
  • frame disc angle and corneal vertex distance or pupil distance from the three-dimensional data record for the right eye 54 and the left eye 56 as well as mean values thereof can be determined and, if necessary, information about the monitor 18 output, if the deviations of the values for the right eye 54 and the left Eye 56 exceed a maximum value in each case.
  • the corneal vertex distance can be calculated optionally according to the reference point requirement or according to the requirement of the ocular rotation point.
  • the corneal vertex distance corresponds to the distance of the vertex of the spectacle lens 50 from the cornea at the piercing point of the fixation line of the eye in the zero viewing direction.
  • the corneal vertex distance corresponds to the minimum distance of the cornea from the spectacle lens 50.
  • the device 10 of the present invention may be designed such that the grinding height of the spectacle lens 50 is calculated from a distance of the piercing point of the fixation line of an eye 54, 56 in primary position with a glass plane of a spectacle lens 50 from a lower horizontal tangent in the plane of the glass.
  • a lower horizontal tangent for example, in Figures 5 and 6, the line 84 of the boundary 62, 64 according to box size.
  • the device 10 is designed so that from points on the edge 36 of the eyeglass frame 52 for each eye 54, 56, a three-dimensional closed stretch train for the glass form of the lens 50 is determined, wherein from distances of the respective spectacle lenses 50 of the right eye 54 and the left Auges 56 an average range of distances for the glass mold can be determined.
  • the optical parameters instead of averaging the values of the optical parameters which are determined for the right eye 54 and the left eye 56, the optical parameters, or the stretch path for the glass mold only for the spectacle lens 50 of one of the eyes 54 , 56 and these values will also be used for the other of the eyes 54, 56.
  • the apparatus may be used to generate images of the user 30 and these images
  • the device 10 according to the present invention can therefore be designed to include adaptation recommendations, in particular optimized individual parameters for a multiplicity of different ones
  • the apparatus is designed to determine the above parameters and values for a pair of glasses using at least one saddle point 53 and to compare them with corresponding predetermined parameters and values.
  • the actual position of use of the glasses can be compared with a predetermined position of use, according to which the glasses were made and deviations from the predetermined position of use are corrected.
  • the predetermined parameters may be stored by the device and retrieved from its memory. The predetermined parameters and values can also be supplied to the device.
  • FIG. 10 shows an output image, as can be displayed, for example, on the monitor 18, wherein the image data of the upper camera 14 (referred to as camera 1) and the lateral camera 16 (referred to as camera 2) are shown. Furthermore, an image of the lateral camera 16 is shown, in which the user data are displayed. Furthermore, the optical parameters for the right eye 54 and the left eye 56, as well as average values thereof, are shown.
  • the displayed output image is a superposition of the image data with the comparison image data.
  • a plurality of bulbs 28 are arranged so that for all cameras 14, 16 reflections 82 for each eye 54, 56 directly at the puncture point of the respective fixation on the cornea or geometrically defined to the puncture point, are generated. Further, the bulbs 28 are preferably arranged so that the reflections 82 are generated in particular for the penetration point of the respective fixing line of the eyes 54, 56 in the primary position.
  • the position of the glasses or the first and / or the second spectacle lens in the actual use position can be corrected so that the actual use position corresponds to the desired desired use position.
  • the desired use position is in this case that position of use of the glasses, knowing which the individually adapted lenses were made.
  • the actual centering of a spectacle lens or both spectacle lenses in the spectacle frame ie the position of a spectacle lens relative to the spectacle frame can be determined and checked and taken into account in the determination and correction of the actual position of use.
  • the desired desired use position of a pair of glasses to be produced can also be determined in a simple manner.
  • the glasses to be produced with individual spectacle lenses can subsequently be produced taking into account the desired desired use position.
  • the actual position of use of the spectacles i. In particular, both of the lenses, thus the actual position of the glasses or the lenses relative to the corresponding eyes of the user, deviates from the desired use position.
  • This adaptation can be carried out for example by an optician.
  • comparison image data are generated at least of partial areas of the user's head, but the user does not wear the already manufactured spectacles.
  • auxiliary marks or auxiliary points For example, characteristic features of the portion of the head determined.
  • the auxiliary points may be, for example, special features of the portion of the head of the user, such as a birthmark, scars, light or dark pigment spots, etc ..
  • the auxiliary points may also be artificially created points, for example so-called saddle points in the form of stickers to predetermined or predeterminable positions of the portion of the head are mounted.
  • An exemplary saddle point 53 is shown in FIG.
  • auxiliary points 53 are selected at positions of the partial region of the head or the saddle points 53 are arranged correspondingly so that the saddle points 53 are spatially constant or invariable relative to the respective eye pivot points.
  • the pupil positions or pupil center points of the user are determined in the image data of the partial area of the head.
  • the spatial positions of the pupillary centers are still determined relative to the auxiliary points.
  • image data of the subarea of the user's head are generated, the user wearing the manufactured spectacles 38 with the individually produced spectacle lenses in the actual position of use.
  • a further saddle point 153, 253 is arranged or recorded on a spectacle lens or on both spectacles, which or which allow, for example, to determine the position of the engraving points and in particular to determine the position of the engraving points in the box dimension of the corresponding spectacle lens.
  • the saddle point shown in FIG. 11 can consequently also represent a presentation means 153, 253.
  • the presentation means 153, 253 may be formed, for example, as a sticker 153, 253.
  • the presentation means 153, 253 can also be a monochrome dot 153, 253 which can be arranged either as a sticker on the spectacle lens (for example shown in FIG. 6) or, for example, with a stylus directly on the spectacle lens (for example shown in FIG Figure 6) is drawn.
  • auxiliary point (s) or presentation point (s) is determined on the basis of saddle points
  • the saddle points are advantageously designed such that they can be identified in a simple and reliable manner by means of image recognition software.
  • parameters of the spectacles or of the first and / or the second spectacle lens are determined relative to the auxiliary points.
  • both the relative positions of the pupil centers 58, 60 to the auxiliary points 53 are known and the relative position of the spectacles 38 and the first and / or the second spectacle lens in their actual position of use to the auxiliary points 53 is known, can in a simple manner
  • the actual position of the spectacles 38 relative to the pupil centers 58, 60 are determined. Therefore, it is possible to identify a deviation of the actual use position of the target use position and compensate subsequently.
  • the actual corneal vertex distance may be determined and compared to the corneal vertex distance used for the calculation and fabrication of the individual spectacle lenses 50.
  • the glasses 38 can be further adjusted, i. the actual position of use are changed and the new actual position of use is again checked by the method described above. Iteratively, therefore, the actual usage position may be repeatedly determined, compared and adjusted with the desired use position until the deviation of the actual use position from the desired use position is less than an acceptable, predetermined deviation limit value. In this case, the actual position of each spectacle lens can be taken into account on the basis of the centering data determined by means of the representation means.
  • the correction of the actual position of use can be done not only because of the corneal vertex distance. Rather, the actual Use position with respect to other or other individual parameters are adapted to the desired use position.
  • the actual use position can be easily adapted to the desired use position, even if the custom-made lenses 50 are already arranged in the glasses 38 and optionally also a faulty arrangement of the lenses are corrected in the spectacle frame.
  • Measurement errors in the determination of the actual position of use are hereby avoided or are very small because the positions of the pupil centers 58, 60 relative to the spectacles 38 or relative to the first and / or the second spectacle lens are not determined by the spectacle lenses 50,
  • an incorrect determination of the position of the spectacles 38 or of the first and / or the second spectacle lens relative to the pupil centers 58, 60 which could occur due to the optical properties of the spectacle lenses 50, avoided.
  • the position of the auxiliary points 53 relative to the pupil centers 58, 60 was determined in the absence of the spectacles 38 or in the absence of the first and / or the second spectacle lens, which is why no measurement is carried out here by the spectacle lenses 50.
  • FIG. 12 shows a conventional device for determining the engraving points of a spectacle lens, according to the principle of "DoublePassReflection" in combination with a telecentric illumination and observation optics and a prism optics for splitting the image field into engraving points.
  • the engraving points can be determined and represented on the basis of the representation means, for example by gluing saddle points 153, 253.
  • the present invention is not limited to the above-described particularly preferred embodiments. Rather, the invention also encompasses variations thereof, in particular the use of a device according to the invention for determining optical parameters of a user.
  • the apparatus described above may also be operated in an operating mode in which a position of a spectacle frame relative to the head thereby determines is, without an auxiliary point and without comparison image data to determine thereby, a pulley is imaged within the boundary of the spectacle frame.
  • the present invention comprises a system consisting of a device for determining a position of a pair of spectacles and / or at least one spectacle lens relative to a pupil center of a corresponding eye of a user in the zero viewing direction and a user
  • a data processing device which is designed based on the image data, based on the comparison image data and based on at least the portion of the auxiliary structure, the position of the spectacles and / or the at least one spectacle lens relative to the pupil center of the corresponding
  • a data output device which is designed to adjust the position of the spectacles and / or of the at least one spectacle lens relative to the pupil center of the corresponding eye of the user
  • Output zero direction includes.
  • intersections 66 intersections 68 intersections

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

Abstract

La présente invention concerne un dispositif (10) permettant de déterminer une position d'une paire de lunettes (38) et/ou d'au moins un verre de lunettes par rapport au centre de la pupille d'un oeil correspondant d'un utilisateur (30) dans la direction primaire du regard, lequel dispositif comporte au moins deux dispositifs de prise de vues (14, 16), chacun conçus et placés de sorte à produire des données image de comparaison d'au moins une partie de la tête de l'utilisateur en l'absence de la paire de lunettes (38) et/ou en l'absence dudit au moins un verre de lunettes (50) et d'au moins une partie d'une structure auxiliaire (53) ainsi que des données image d'une partie sensiblement identique de la tête de l'utilisateur portant la paire de lunettes (38) et/ou au moins un verre de lunettes (50) et de la partie de la structure auxiliaire (53), un dispositif de traitement de données, conçu pour déterminer, à l'aide des données image, à l'aide des données image de comparaison et à l'aide de la partie de la structure auxiliaire (53), la position de la paire de lunettes (38) et/ou dudit au moins un verre de lunettes (50) par rapport au centre de la pupille de l'oeil correspondant de l'utilisateur (30) dans la direction primaire du regard, ainsi qu'un dispositif de sortie de données, conçu pour sortir la position de la paire de lunettes (38) et/ou dudit au moins un verre de lunettes (50) par rapport au centre de la pupille de l'oeil correspondant de l'utilisateur (30) dans la direction primaire du regard. L'invention concerne également un autre dispositif, un procédé correspondant et un dispositif à programme informatique.
PCT/EP2007/005976 2006-07-19 2007-07-05 Dispositif et procédé permettant de déterminer une position de port d'une paire de lunettes, dispositif à programme informatique WO2008009355A1 (fr)

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EP07785907A EP2047322A1 (fr) 2006-07-19 2007-07-05 Dispositif et procédé permettant de déterminer une position de port d'une paire de lunettes, dispositif à programme informatique

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DE200610033491 DE102006033491A1 (de) 2006-07-19 2006-07-19 Vorrichtung und Verfahren zum Bestimmen einer Trageposition einer Brille, Computerprogrammvorrichtung

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EP3495876A1 (fr) * 2017-12-06 2019-06-12 Essilor International Procédé et ensemble permettant de vérifier le montage d'une lentille ophtalmique dans une monture et paire de lunettes comprenant une monture et une lentille ophtalmique montée dans cette dernière
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DE102016003512A1 (de) * 2016-03-22 2017-09-28 Rodenstock Gmbh Verfahren und Vorrichtung zur Ermittlung von 3D-Koordinaten zumindest eines vorbestimmten Punktes eines Objekts
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WO2009086860A1 (fr) * 2008-01-10 2009-07-16 Rodenstock Gmbh Utilisation d'une cible de fixation et dispositif correspondant
WO2010017955A1 (fr) * 2008-08-13 2010-02-18 Carl Zeiss Vision Gmbh Procédé et dispositif de contrôle du centrage d’une paire de lunettes portée par porteur de lunettes
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WO2010119435A1 (fr) * 2009-04-17 2010-10-21 Essilor International (Compagnie Generale D' Optique) Procede de determination d'une lentille ophtalmique
WO2010119183A1 (fr) * 2009-04-17 2010-10-21 Essilor International (Compagnie Générale d'Optique) Procédé de détermination d'une lentille ophtalmique
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
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
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
US9208608B2 (en) 2012-05-23 2015-12-08 Glasses.Com, Inc. Systems and methods for feature tracking
WO2016128112A1 (fr) * 2015-02-13 2016-08-18 Rodenstock Gmbh Dispositif et procédé de détermination de distance et/ou de centrage à l'aide des réflexions cornéennes
US10758124B2 (en) 2015-02-13 2020-09-01 Rodenstock Gmbh Device and method for distance determination and/or centering using corneal reflections
EP3465545A4 (fr) * 2016-06-01 2020-01-29 Vidi Pty Ltd Système optique de mesure et de balayage et procédés d'utilisation
CN109313707A (zh) * 2016-06-01 2019-02-05 维迪私人有限公司 光学测量和扫描系统及使用方法
US10997794B2 (en) 2016-06-01 2021-05-04 Vidi Pty Ltd Optical measuring and scanning system and methods of use
AU2017274570B2 (en) * 2016-06-01 2022-02-03 Vidi Pty Ltd An optical measuring and scanning system and methods of use
CN109313707B (zh) * 2016-06-01 2023-09-05 维迪私人有限公司 光学测量和扫描系统及使用方法
AU2022200703B2 (en) * 2016-06-01 2023-09-21 Vidi Pty Ltd An optical measuring and scanning system and methods of use
WO2019110764A1 (fr) * 2017-12-06 2019-06-13 Essilor International Procédé et ensemble de vérification du montage d'une lentille ophtalmique dans une monture
EP3495876A1 (fr) * 2017-12-06 2019-06-12 Essilor International Procédé et ensemble permettant de vérifier le montage d'une lentille ophtalmique dans une monture et paire de lunettes comprenant une monture et une lentille ophtalmique montée dans cette dernière
CN111417893A (zh) * 2017-12-06 2020-07-14 依视路国际公司 用于检验眼科镜片在镜架中的安装的方法和组件
CN111417893B (zh) * 2017-12-06 2021-08-31 依视路国际公司 用于检验眼科镜片在镜架中的安装的方法和组件
US11300815B2 (en) 2017-12-06 2022-04-12 Essilor International Method and assembly for verifying the mounting of an ophthalmic lens in a frame
WO2021140070A1 (fr) * 2020-01-10 2021-07-15 Essilor International Variations de position des lentilles d'un équipement de lunetterie

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