FR1513435A - Lentille à puissance progressivement variable - Google Patents

Lentille à puissance progressivement variable

Info

Publication number
FR1513435A
FR1513435A FR88262A FR88262A FR1513435A FR 1513435 A FR1513435 A FR 1513435A FR 88262 A FR88262 A FR 88262A FR 88262 A FR88262 A FR 88262A FR 1513435 A FR1513435 A FR 1513435A
Authority
FR
France
Prior art keywords
variable power
power lens
gradually variable
gradually
lens
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
Application number
FR88262A
Other languages
English (en)
Inventor
Raymond Andre Dudragne
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 filed Critical
Priority to FR88262A priority Critical patent/FR1513435A/fr
Application granted granted Critical
Publication of FR1513435A publication Critical patent/FR1513435A/fr
Expired 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
    • G02C7/06—Lenses; Lens systems ; Methods of designing lenses bifocal; multifocal ; progressive
    • G02C7/061—Spectacle lenses with progressively varying focal power
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Health & Medical Sciences (AREA)
FR88262A 1966-12-21 1966-12-21 Lentille à puissance progressivement variable Expired FR1513435A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR88262A FR1513435A (fr) 1966-12-21 1966-12-21 Lentille à puissance progressivement variable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR88262A FR1513435A (fr) 1966-12-21 1966-12-21 Lentille à puissance progressivement variable

Publications (1)

Publication Number Publication Date
FR1513435A true FR1513435A (fr) 1968-02-16

Family

ID=8622760

Family Applications (1)

Application Number Title Priority Date Filing Date
FR88262A Expired FR1513435A (fr) 1966-12-21 1966-12-21 Lentille à puissance progressivement variable

Country Status (1)

Country Link
FR (1) FR1513435A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2425653A1 (fr) * 1978-05-12 1979-12-07 Essilor Int Procede pour elaborer une surface de refraction d'une lentille ophtalmique a puissance focale progressivement variable
FR2676551A1 (fr) * 1991-03-15 1992-11-20 Ishida Koki Seisakusho Co Ltd Lentille pour presbytie ne presentant aucune aberration a courte distance ni a distance intermediaire.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2425653A1 (fr) * 1978-05-12 1979-12-07 Essilor Int Procede pour elaborer une surface de refraction d'une lentille ophtalmique a puissance focale progressivement variable
FR2676551A1 (fr) * 1991-03-15 1992-11-20 Ishida Koki Seisakusho Co Ltd Lentille pour presbytie ne presentant aucune aberration a courte distance ni a distance intermediaire.

Similar Documents

Publication Publication Date Title
FR1509090A (fr) Perfectionnements aux lentilles ophtalmiques à puissance focale progressivement variable
FR1508711A (fr) Mécanisme de transmission de puissance
BR6787409D0 (pt) Controler
CH474078A (de) Kompaktkamera
AT245821B (de) Objektiv mit veränderlicher Brennweite
AT283004B (de) Kaleidoskop
AT280370B (de) Leuchtschirm
CH449995A (de) Weitwinkelobjektiv
CH457330A (de) Einbauleuchte
CH452220A (de) Lichtstarkes Objektiv mit veränderbarer Brennweite
FR1513435A (fr) Lentille à puissance progressivement variable
CH480207A (de) Kraftübertragungsaggregat
CH458140A (de) Fernrohr
AT279429B (de) Leuchtgeschoß
CH469277A (de) Objektiv mit veränderbarer Verkleinerung
CH452065A (de) Leistungsröhre
CH420373A (fr) Convertisseur-amplificateur de puissance
FR1472549A (fr) Poulie variable
AT284269B (de) Stromwandler
FR1378274A (fr) Atténuateur électrique d'intensité lumineuse
CH482207A (fr) Objectif à distance focale variable
AT273555B (de) Rüttelegge
FR1487655A (fr) Mécanisme de transmission de puissance
AT268882B (de) Kinokamera
FR1525824A (fr) Laser