WO2005071465A1 - Verre de lunettes correcteur et lunettes correctrices - Google Patents

Verre de lunettes correcteur et lunettes correctrices Download PDF

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Publication number
WO2005071465A1
WO2005071465A1 PCT/EP2005/000748 EP2005000748W WO2005071465A1 WO 2005071465 A1 WO2005071465 A1 WO 2005071465A1 EP 2005000748 W EP2005000748 W EP 2005000748W WO 2005071465 A1 WO2005071465 A1 WO 2005071465A1
Authority
WO
WIPO (PCT)
Prior art keywords
spectacle lens
spectacle
corrected
lens according
distance
Prior art date
Application number
PCT/EP2005/000748
Other languages
German (de)
English (en)
Other versions
WO2005071465A8 (fr
Inventor
Timo Kratzer
Markus Welscher
Original Assignee
Carl Zeiss Ag
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 Carl Zeiss Ag filed Critical Carl Zeiss Ag
Publication of WO2005071465A1 publication Critical patent/WO2005071465A1/fr
Publication of WO2005071465A8 publication Critical patent/WO2005071465A8/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
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/06—Lenses; Lens systems ; Methods of designing lenses bifocal; multifocal ; progressive
    • 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

Definitions

  • the invention relates to a single-vision spectacle lens for insertion into a spectacle frame of a spectacle wearer, in which the spectacle lens with a distance correction depending on the conditions of use of the spectacle lens, in particular a corneal-vertex distance (HSA) and / or a pupil distance and / or a local viewing angle of the glasses wearer, and / or data of the glasses frame, such as a forward inclination and / or a side inclination and / or their shape.
  • HSA corneal-vertex distance
  • the invention further relates to single vision glasses with at least one distance corrected lens.
  • a single vision spectacle lens of the type mentioned is known from DE 101 22 707 AI.
  • single vision lenses In contrast to multifocal lenses or progressive lenses, single vision lenses have the same constant target effect for the spectacle wearer everywhere. To correct image errors, particularly astigmatism, and spherical deviations, it is known to "correct" single vision lenses, i.e. to minimize the image errors for a certain distance by choosing a suitable deflection / asphere in the largest possible diameter.
  • the single-vision lens known from DE 101 22 707 AI mentioned at the outset is corrected so that data on the spectacle wearer, for example the pupil distance and the shape of the spectacle frame, are included in the correction, as is the most frequently used object distance.
  • the latter is assumed to be constant within the manufacturing process. Details of the manufacturing process and lens shape are not given.
  • a short and medium distance aberration-free spectacle lens for presbyopia is known.
  • different radii of curvature are selected for the front surface and the rear surface, and the center points lie at a distance from one another on the optical axis. This is to ensure that there is no fluctuation in the image as a result of the movement of the eyeball.
  • an eyeglass lens and eyeglass lens family is known from DE 100 20 914 AI, in which an adaptation to the conditions of use of the eyeglass wearer is carried out in a multifocal lens.
  • a similar spectacle lens is also described in DE 197 01 312 AI.
  • a varifocal lens disclosed, which is provided on the back with a multifocal surface that meets all the individual requirements of the prescription glasses.
  • Special solutions are also considered, e.g. on glasses for VDU work or for drivers. Such special solutions require a distance correction only for a certain distance, which consequently affects the entire spectacle lens as a special solution for only a certain application.
  • single vision lenses of conventional design are only optimized for a certain sphere / cylinder combination and only for standard conditions of use, and the aspheres in such single vision lenses are only optimized for a certain distance, usually the distance, but not for a different distance, how to use them for reading, for. Climbing stairs and the like is required.
  • the invention is therefore based on the object of further developing single-vision glasses and single-vision glasses of the type mentioned at the outset in such a way that the disadvantages described are avoided.
  • this object is achieved according to the invention in that at least one area is formed in the spectacle lens, which is corrected differently for different distances depending on the conditions of use.
  • the object is achieved in that the glasses of the glasses are corrected differently for different distances according to the individual conditions of use of the glasses wearer.
  • individual single-vision spectacles are provided for a spectacle wearer, taking into account his personal conditions of use. H . Optimization is carried out individually for the sphere / cylinder combination ordered. In addition, the individual conditions of use, such as pre-inclination, side inclination, corneal-vertex distance and position of the eyes with regard to the frame of the glasses are included in the optimization.
  • the single-vision spectacle lens according to the invention remains a single-vision lens in which, in contrast to a varifocal lens, the same constant target effect is present everywhere. A change in the working distance must therefore be applied by accommodation of the spectacle wearer, as is the case with conventional single-vision spectacle lenses.
  • the left lens and the right lens can differ in their individual correction and target effect.
  • the correction can be applied differently, namely once for different working distances, on the other hand depending on a forward inclination of the spectacle lens in the spectacle frame, furthermore depending on a lateral inclination of the spectacle lens in the spectacle frame, and furthermore on a distance of the spectacle lens from an eye of the spectacle wearer (the so-called corneal-vertex distance HSA), moreover depending on a position of the eyes of the spectacle wearer relative to the spectacle frame, and finally depending on a local viewing angle of the eyes of the spectacle wearer.
  • HSA corneal-vertex distance
  • the target effect and the working distances do not have to be related to each other.
  • corrections are local changes in the curvatures.
  • the orders of magnitude of these corrections are in the range of a few hundredths of a few tenths of a diopter, so that, as already mentioned, the single-vision spectacle lens according to the present invention is not a multi-vision or progressive lens because this minimal variation in the refractive power does not result in that the accommodation of the spectacle wearer becomes unnecessary when the working distance is varied.
  • the differently corrected areas of the single-vision spectacle lens provided according to the invention can be shaped differently.
  • the areas are formed as horizontal strips in the normal position of use, in a second embodiment as concentric rings and in a third embodiment finally as irregularly shaped surfaces distributed over a surface of the spectacle lens.
  • This selection of the shape of the areas also depends on the individual conditions of use and the manufacturing effort acceptable in individual cases.
  • transition zones are provided between the differently corrected regions, which produce a continuous or abrupt transition between the regions.
  • 1 and 2 a single-vision spectacle lens according to the prior art for two different viewing angles of an eye
  • FIGS. 1 and 2 a representation similar to FIGS. 1 and 2, but for a single-vision spectacle lens according to the invention and three different viewing angles of an eye;
  • 6 to 8 show three embodiments of differently corrected areas of a single-vision spectacle lens according to the invention.
  • Fig. 1 denotes an eye of a spectacle wearer. For the sake of simplicity, only one eye is shown in the drawing.
  • the eye 10 looks straight ahead, i.e. that the viewing angle is zero.
  • An image point located at infinity emits light rays 18 which are parallel to the axis and which are focused in the lens 12 and appear as a point-like image 20 on the retina 14.
  • FIG. 2 shows a situation in which the spectacle wearer looks down at an angle of view ⁇ and thereby fixes an image point 22 which is only at a finite distance a from the lens 12 '. Since the spectacle lens 16 is distant over its entire surface, i.e. If an operating point lying in infinity is corrected, the light rays 18 'pass as a diverging and distorted light beam from the image point 22 through the spectacle lens 16 and the lens 12' and are imaged as a blurred image 24 on the retina 14 '. Since the lens 12 'can only accommodate approximately spherically, a residual error remains.
  • the invention has set itself the goal of avoiding this disadvantage of conventional spectacle lenses 12, which is illustrated by way of example.
  • FIG. 3 to 5 show a single-vision spectacle lens 26 which is divided into three areas 26a, 26b and 26c. These three areas 26a, 26b, 26c are corrected differently so that, for example, different distances can be taken into account.
  • FIG. 3 again shows a case corresponding to FIG. 1, in which the spectacle wearer looks straight ahead with his eye 10 and fixes a working point in the distance. The light rays 18 are again incident parallel to the axis, penetrate the central region 26b of the spectacle lens 26 and will appear on the retina 14 as a point-like image 20 via the lens 12.
  • FIG. 5 The corresponding case for a medium distance b is shown in FIG. 5, where the spectacle wearer looks upwards with his eye 10 ′′ at a viewing angle ⁇ and fixes an image point 28 there, which is arranged at a medium distance b from the lens 12 ′′ is.
  • the diverging beam bundle 18 ′′ falls through the upper region 26a of the single-vision spectacle lens 26, which has just been corrected for the distance b and for the viewing angle ⁇ .
  • a point-shaped image 20 ′′ is also produced here on the retina 14 ′′.
  • FIG. 6 shows a configuration similar to FIGS. 3 to 5 with an eyeglass lens 30, the three regions 30a, 30b, 30c of which are arranged one above the other in the normal position of use of the eyeglass lens 30 and are designed as a horizontal strip. Between the areas 30a, 30b and 30b and 30c there is a transition zone 32, which creates a continuous transition between the adjacent areas.
  • FIG. 7 shows a spectacle lens 40 with three areas 40a, 40b, 40c, which are designed as concentric rings and are each separated from one another by transition zones 42.

Landscapes

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

Abstract

La présente invention concerne un verre de lunettes correcteur à insérer dans une monture de support de lunettes, et des lunettes correspondantes. Le verre de lunettes (26) présente une correction de distance qui dépend des conditions d'utilisation du verre de lunettes (26), en particulier de la distance cornée-sommet (HSA) et/ou de la distance pupillaire et/ou d'un angle de vision local (α, β) du support de lunettes, et/ou de données relatives à la monture de lunettes, par ex. l'inclinaison avant et/ou l'inclinaison latérale et/ou leur forme. Le verre de lunettes (26) présente au moins une zone (26a, 26b, 26c) qui est corrigée différemment en fonction des conditions d'utilisation.
PCT/EP2005/000748 2004-01-27 2005-01-26 Verre de lunettes correcteur et lunettes correctrices WO2005071465A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004004920.3 2004-01-27
DE200410004920 DE102004004920A1 (de) 2004-01-27 2004-01-27 Einstärken -Brillenglas und Einstärkenbrille

Publications (2)

Publication Number Publication Date
WO2005071465A1 true WO2005071465A1 (fr) 2005-08-04
WO2005071465A8 WO2005071465A8 (fr) 2005-11-03

Family

ID=34745208

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/000748 WO2005071465A1 (fr) 2004-01-27 2005-01-26 Verre de lunettes correcteur et lunettes correctrices

Country Status (2)

Country Link
DE (1) DE102004004920A1 (fr)
WO (1) WO2005071465A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0461624A1 (fr) * 1990-06-13 1991-12-18 Seiko Epson Corporation Lentille ophtalmique
DE4210008A1 (de) * 1992-03-27 1993-09-30 Zeiss Carl Fa Brillenlinse

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19701312A1 (de) * 1997-01-16 1998-07-23 Zeiss Carl Fa Brillenglas mit sphärischer Vorderseite und multifokaler Rückseite, sowie Verfahren zu seiner Herstellung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0461624A1 (fr) * 1990-06-13 1991-12-18 Seiko Epson Corporation Lentille ophtalmique
US5335026A (en) * 1990-06-13 1994-08-02 Seiko Epson Corporation Eyeglass lens
DE4210008A1 (de) * 1992-03-27 1993-09-30 Zeiss Carl Fa Brillenlinse

Also Published As

Publication number Publication date
DE102004004920A1 (de) 2005-08-11
WO2005071465A8 (fr) 2005-11-03

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