DE102007026313A1 - Contact lens comprises a first lens part arranged directly on the eye and made from a soft material and a second lens part arranged on the outer side of the first part and made from a harder material - Google Patents
Contact lens comprises a first lens part arranged directly on the eye and made from a soft material and a second lens part arranged on the outer side of the first part and made from a harder material Download PDFInfo
- Publication number
- DE102007026313A1 DE102007026313A1 DE200710026313 DE102007026313A DE102007026313A1 DE 102007026313 A1 DE102007026313 A1 DE 102007026313A1 DE 200710026313 DE200710026313 DE 200710026313 DE 102007026313 A DE102007026313 A DE 102007026313A DE 102007026313 A1 DE102007026313 A1 DE 102007026313A1
- Authority
- DE
- Germany
- Prior art keywords
- lens
- lens part
- eye
- soft
- contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/04—Contact lenses for the eyes
- G02C7/049—Contact lenses having special fitting or structural features achieved by special materials or material structures
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C2202/00—Generic optical aspects applicable to one or more of the subgroups of G02C7/00
- G02C2202/16—Laminated or compound lenses
Abstract
Description
Die Erfindung betrifft eine Kontaktlinse nach dem Oberbegriff des Anspruchs 1.The The invention relates to a contact lens according to the preamble of the claim 1.
Auf dem Markt gibt es verschiedene Kontaktlinsen zur Behebung einer Vielzahl von möglichen Fehlsichtigkeiten. Man unterscheidet dabei die "weichen Kontaktlinsen" sowie die "harten Kontaktlinsen". Beide haben Vorteile und Nachteile.On There are different contact lenses available on the market Variety of possible refractive errors. One distinguishes the "soft Contact lenses "as well the "hard contact lenses". Both have advantages and disadvantages.
Bei den weichen Kontaktlinsen liegt der Vorteil darin, daß sie sich angenehm tragen lassen. Der Nachteil besteht darin, daß sie sich dem Auge anpassen und dadurch ihre Form verändern, so daß sich dann gleichermaßen die optischen Abbildungseigenschaften verändern, nämlich verschlechtern. Bei den harten Kontaktlinsen besteht der Vorteil darin, daß ihre optischen Eigenschaften stabil sind. Der Nachteil besteht darin, daß sie im Tragekomfort unangenehmer sind.at The soft contact lenses have the advantage that they are comfortable to wear. The disadvantage is that they themselves adapt to the eye and thereby change its shape, so that then equally change the optical imaging properties, namely worsen. With the hard ones Contact lenses has the advantage that their optical properties are stable. The disadvantage is that they are uncomfortable in wearing comfort are.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Kontaktlinse zu schaffen, welche die Vorteile der harten und weichen Kontaktlinsen in sich vereinigt und welche die Nachteile der harten und weichen Kontaktlinsen vermeidet.Of the Invention is therefore based on the object to a contact lens create the benefits of hard and soft contact lenses united and which the disadvantages of hard and soft Contact lenses avoids.
Die technische Lösung ist gekennzeichnet durch die Merkmale im Kennzeichen des Anspruchs 1.The technical solution is characterized by the features in the characterizing part of claim 1.
Als Grundidee schlägt die erfindungsgemäße Kontaktlinse die Kombination einer weichen Kontaktlinse mit einer harten Kontaktlinse vor, und zwar dergestalt, daß diese so geschaffene Kontaktlinse die Vorteile der harten und weichen Kontaktlinsen in sich vereinigt, jedoch die Nachteile der harten und weichen Kontaktlinsen vermeidet. Die technische Realisierung besteht darin, in das weichere Linsenteil ein härteres Linsenteil als Verbesserung der Oberflächenstruktur und zur Stabilisierung bei Verschiebungen der Kontaktlinse einzuarbeiten. Es ist somit eine Zweischichtlinse geschaffen. Hierzu wird eine optimale Linse aus dem weichen Kunststoffmaterial und eine optimale Linse aus dem harten Kunststoffmaterial hergestellt. Das weiche Linsenteil liegt dabei auf dem Auge auf und ermöglicht den Ausgleich von optischen Fehlern. Das weiche Linsenteil bringt gleichzeitig die Vorzüge des Tragekomforts weicher Linsen. Die äußere harte Schale des härteren Linsenteils dient der optimalen Oberflächenstruktur am vorderen Linsenabschnitt. Sie schafft die perfekte Oberfläche zum Ausgleich der Sehschwäche und dient gleichzeitig zum Stabilisieren der Kontaktlinse im Allgemeinen, insbesondere bei Bewegungen.When Basic idea beats the contact lens according to the invention the combination of a soft contact lens with a hard contact lens before, in such a way that this so created contact lens the advantages of hard and soft Contact lenses in one, but the disadvantages of hard and avoid soft contact lenses. The technical realization is in the softer lens part a harder lens part as an improvement the surface structure and to incorporate for stabilization during displacements of the contact lens. It is thus created a two-layer lens. This will be a optimal lens made of soft plastic material and optimal Lens made of hard plastic material. The soft one Lens part rests on the eye and allows the compensation of optical Errors. The soft lens part brings at the same time the benefits of wearing comfort soft lenses. The outer hard Shell of the harder Lens part serves the optimal surface structure at the front lens portion. It creates the perfect surface to compensate for poor eyesight and at the same time serves to stabilize the contact lens in general, especially during movements.
Die Weiterbildung gemäß Anspruch 2 schlägt vor, daß das harte Linsenteil in einer Ausnehmung des weichen Linsenteils festgelegt ist. Dadurch ist eine homogene Oberfläche im Bereich der Außenseite der Kontaktlinse geschaffen.The Training according to claim 2 hits before that fixed hard lens part in a recess of the soft lens part is. This creates a homogeneous surface in the area of the outside the contact lens created.
Die Weiterbildung gemäß Anspruch 3 schlägt eine erste Variante zur Festlegung des harten Linsenteils auf dem weichen Linsenteil vor. Die Grundidee besteht darin, das weiche Linsenteil im Bereich der Ausnehmung mit einer Hinterschneidung zu versehen, in welche das harte Linsenteil formschlüssig gehalten ist.The Training according to claim 3 beats a first variant for fixing the hard lens part on the soft lens part. The basic idea is the soft one Lens part in the region of the recess with an undercut to provide, in which the hard lens part held positively is.
Eine Alternative hierzu schlägt gemäß Anspruch 4 vor, daß das harte Linsenteil auf dem weichen Linsenteil festgeklebt ist. Andere Befestigungsmöglichkeiten sind denkbar.A Alternative suggests according to claim 4 that the hard lens part is glued to the soft lens part. Other mounting options are conceivable.
Ein Ausführungsbeispiel einer erfindungsgemäßen Kontaktlinse wird nachfolgend anhand der Zeichnungen beschrieben. In diesen zeigt:One embodiment a contact lens according to the invention will be described below with reference to the drawings. In these shows:
Die
Kontaktlinse
Das
weiche Linsenteil
Die
Außenseite
des weichen Linsenteils
Das
weiche Linsenteil
- 11
- Kontaktlinsecontact lens
- 22
- weiches Linsenteilsoft lens part
- 33
- hartes Linsenteiltough lens part
- 44
- Augeeye
- 55
- Ausnehmungrecess
- 66
- Hinterschneidungundercut
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710026313 DE102007026313A1 (en) | 2007-06-06 | 2007-06-06 | Contact lens comprises a first lens part arranged directly on the eye and made from a soft material and a second lens part arranged on the outer side of the first part and made from a harder material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710026313 DE102007026313A1 (en) | 2007-06-06 | 2007-06-06 | Contact lens comprises a first lens part arranged directly on the eye and made from a soft material and a second lens part arranged on the outer side of the first part and made from a harder material |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007026313A1 true DE102007026313A1 (en) | 2008-12-11 |
Family
ID=39942090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200710026313 Ceased DE102007026313A1 (en) | 2007-06-06 | 2007-06-06 | Contact lens comprises a first lens part arranged directly on the eye and made from a soft material and a second lens part arranged on the outer side of the first part and made from a harder material |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102007026313A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008046140B4 (en) * | 2008-09-05 | 2010-11-18 | Zürcher, Ralf | contact lens |
CN106255919A (en) * | 2014-01-28 | 2016-12-21 | 普雷斯白视觉有限公司 | Lens combination for vision correction |
CN112450877A (en) * | 2020-10-27 | 2021-03-09 | 华中科技大学同济医学院附属同济医院 | Intelligent contact lens with full-cornea fiber grating sensors arranged in series |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2129042A1 (en) * | 1971-06-11 | 1972-12-21 | Hemr Wohlk Institut fur Contact Linsen, 2301 Schonkirchen | Contact lens |
-
2007
- 2007-06-06 DE DE200710026313 patent/DE102007026313A1/en not_active Ceased
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2129042A1 (en) * | 1971-06-11 | 1972-12-21 | Hemr Wohlk Institut fur Contact Linsen, 2301 Schonkirchen | Contact lens |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008046140B4 (en) * | 2008-09-05 | 2010-11-18 | Zürcher, Ralf | contact lens |
CN106255919A (en) * | 2014-01-28 | 2016-12-21 | 普雷斯白视觉有限公司 | Lens combination for vision correction |
CN112450877A (en) * | 2020-10-27 | 2021-03-09 | 华中科技大学同济医学院附属同济医院 | Intelligent contact lens with full-cornea fiber grating sensors arranged in series |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |