ES2190559T3 - Lente de contacto. - Google Patents

Lente de contacto.

Info

Publication number
ES2190559T3
ES2190559T3 ES98116593T ES98116593T ES2190559T3 ES 2190559 T3 ES2190559 T3 ES 2190559T3 ES 98116593 T ES98116593 T ES 98116593T ES 98116593 T ES98116593 T ES 98116593T ES 2190559 T3 ES2190559 T3 ES 2190559T3
Authority
ES
Spain
Prior art keywords
lens
contact lens
central axis
external surfaces
internal
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.)
Expired - Lifetime
Application number
ES98116593T
Other languages
English (en)
Inventor
Takayuki Onogi
Keiji Yamashita
Kazuya Miyamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Menicon Co Ltd
Original Assignee
Menicon Co Ltd
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 Menicon Co Ltd filed Critical Menicon Co Ltd
Priority claimed from EP93116083A external-priority patent/EP0646825B1/en
Application granted granted Critical
Publication of ES2190559T3 publication Critical patent/ES2190559T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04—Contact lenses for the eyes
    • G02C7/041—Contact lenses for the eyes bifocal; multifocal
    • 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
    • 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
    • G02C7/048—Means for stabilising the orientation of lenses in the eye

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

LAS SUPERFICIES INTERNA Y EXTERNA (2, 3) DE UNA LENTE DE CONTACTO TORICA (1) TIENEN RESPECTIVAMENTE UNA SUPERFICIE CURVADA CON UN DIFERENTE DE RADIO DE CURVATURA, EN DONDE EL EJE CENTRAL DE LAS SUPERFICIES EXTERNAS (3) ESTA DESVIADO HACIA ABAJO DESDE EL EJE CENTRAL DE LA SUPERFICIE INTERNA (2). DE ACUERDO CON ESTO, LA POSICION DEL CENTRO DE GRAVEDAD DE LA LENTE BAJA POR CAUSA DE QUE LA PORCION INFERIOR DE LA LENTE ES MAS GRUESA QUE LA PORCION SUPERIOR. ADEMAS, ESTAN FORMADAS UNAS PORCIONES DE DESBASTADO (4, 5) EN LAS PORCIONES SUPERIOR E INFERIOR DE LA SUPERFICIE EXTERNA DE LA LENTE (1). LA LENTE DE CONTACTO DE LA PRESENTE INVENCION PUEDE PREVENIR CIERTAMENTE LA RELACION DE LA LENTE SOBRE LA CORNEA; PROPORCIONANDO UNA BUENA SENSACION AL USUARIO Y SIENDO SEGURA DE USAR.
ES98116593T 1993-10-05 1993-10-05 Lente de contacto. Expired - Lifetime ES2190559T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93116083A EP0646825B1 (en) 1993-10-04 1993-10-05 Contact lens

Publications (1)

Publication Number Publication Date
ES2190559T3 true ES2190559T3 (es) 2003-08-01

Family

ID=8213322

Family Applications (2)

Application Number Title Priority Date Filing Date
ES93116083T Expired - Lifetime ES2130201T3 (es) 1993-10-05 1993-10-05 Lente de contacto.
ES98116593T Expired - Lifetime ES2190559T3 (es) 1993-10-05 1993-10-05 Lente de contacto.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES93116083T Expired - Lifetime ES2130201T3 (es) 1993-10-05 1993-10-05 Lente de contacto.

Country Status (3)

Country Link
EP (1) EP0883014B1 (es)
DE (2) DE69324144T2 (es)
ES (2) ES2130201T3 (es)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4095878A (en) * 1974-03-28 1978-06-20 Titmus Eurocon Kontaktlinsen Gmbh & Co. Kg Soft contact lens with flattened region for automatic orientation
GB2041557B (en) * 1978-10-05 1982-10-20 Kwok Chu Fung J Soft contact lenses
US4618229A (en) * 1983-07-22 1986-10-21 Bausch & Lomb Incorporated Bifocal contact lens
CA1265688A (en) * 1984-10-17 1990-02-13 Alain Rainville Bi-focal corneal lens and method of making the same

Also Published As

Publication number Publication date
DE69332627T2 (de) 2003-05-22
DE69324144T2 (de) 1999-10-14
ES2130201T3 (es) 1999-07-01
EP0883014B1 (en) 2003-01-08
EP0883014A2 (en) 1998-12-09
EP0883014A3 (en) 1999-02-03
DE69324144D1 (de) 1999-04-29
DE69332627D1 (de) 2003-02-13

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