FR2676551B1 - Lentille pour presbytie ne presentant aucune aberration a courte distance ni a distance intermediaire. - Google Patents

Lentille pour presbytie ne presentant aucune aberration a courte distance ni a distance intermediaire.

Info

Publication number
FR2676551B1
FR2676551B1 FR9105965A FR9105965A FR2676551B1 FR 2676551 B1 FR2676551 B1 FR 2676551B1 FR 9105965 A FR9105965 A FR 9105965A FR 9105965 A FR9105965 A FR 9105965A FR 2676551 B1 FR2676551 B1 FR 2676551B1
Authority
FR
France
Prior art keywords
presbytie
lens
term
short
intermediate aberration
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 - Fee Related
Application number
FR9105965A
Other languages
English (en)
French (fr)
Other versions
FR2676551A1 (fr
Inventor
Yoshihiro Ishida
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.)
Ishida Co Ltd
Original Assignee
Ishida 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 Ishida Co Ltd filed Critical Ishida Co Ltd
Publication of FR2676551A1 publication Critical patent/FR2676551A1/fr
Application granted granted Critical
Publication of FR2676551B1 publication Critical patent/FR2676551B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
FR9105965A 1991-03-15 1991-05-16 Lentille pour presbytie ne presentant aucune aberration a courte distance ni a distance intermediaire. Expired - Fee Related FR2676551B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9105528A GB2253713A (en) 1991-03-15 1991-03-15 Lens for presbyopia free from aberration

Publications (2)

Publication Number Publication Date
FR2676551A1 FR2676551A1 (fr) 1992-11-20
FR2676551B1 true FR2676551B1 (fr) 1993-08-06

Family

ID=10691643

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9105965A Expired - Fee Related FR2676551B1 (fr) 1991-03-15 1991-05-16 Lentille pour presbytie ne presentant aucune aberration a courte distance ni a distance intermediaire.

Country Status (3)

Country Link
DE (1) DE4107195A1 (de)
FR (1) FR2676551B1 (de)
GB (1) GB2253713A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG82039A1 (en) * 1999-06-10 2001-07-24 Lion Corp Alkoxylation catalyst and method for producing the same, and method for producing alkylene oxide adduct using the catalyst

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1159286A (fr) * 1956-10-06 1958-06-25 Saint Gobain Système optique
FR1513435A (fr) * 1966-12-21 1968-02-16 Lentille à puissance progressivement variable
FR2029378A1 (de) * 1969-01-24 1970-10-23 Lunetiers Ste
BE755907A (fr) * 1969-09-11 1971-02-15 Lunetiers Lentilles a puissance focale progressive
FR2344042A1 (fr) * 1976-03-10 1977-10-07 Volk David Lentille ophtalmique pour presbytie et aphakie
CA1077315A (en) * 1976-03-22 1980-05-13 Donald B. Whitney Ophthalmic lenses and method of achieving off-axis correction thereof
FR2393335A1 (fr) * 1977-06-03 1978-12-29 Simonet Antoine Verre progressif pour la correction de la presbytie
US4181409A (en) * 1978-10-16 1980-01-01 American Optical Corporation Aspheric lens series
GB2040491A (en) * 1978-12-29 1980-08-28 Frieder P M Spectacle Lenses or Lens Blanks for Aphakic Patients
FR2481813A1 (fr) * 1980-04-30 1981-11-06 Essilor Int Lentille ophtalmique progressive
JPS5958415A (ja) * 1982-09-29 1984-04-04 Seiko Epson Corp 累進多焦点レンズ
US4538887A (en) * 1984-03-08 1985-09-03 Bristol Alexander C Aspheric spectacle lens blank
FR2565358B1 (fr) * 1984-05-29 1988-05-06 Bach Guy Systemes optiques anastigmatiques a surfaces aspheriques
DE3616888A1 (de) * 1986-05-20 1987-11-26 Rodenstock Optik G Einstaerken-brillenglas mit einem sich zur optischen achse rotationssymmetrisch aendernden brechungsindex
FR2630553B1 (fr) * 1988-04-25 1990-08-17 Essilor Int Lentille ophtalmique unifocale a gradient d'indice et de puissance geometrique nulle

Also Published As

Publication number Publication date
GB2253713A (en) 1992-09-16
DE4107195A1 (de) 1992-09-10
FR2676551A1 (fr) 1992-11-20
GB9105528D0 (en) 1991-05-01

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Legal Events

Date Code Title Description
ST Notification of lapse
ST Notification of lapse