FR846221A - Lunettes à correction bifocale - Google Patents

Lunettes à correction bifocale

Info

Publication number
FR846221A
FR846221A FR846221DA FR846221A FR 846221 A FR846221 A FR 846221A FR 846221D A FR846221D A FR 846221DA FR 846221 A FR846221 A FR 846221A
Authority
FR
France
Prior art keywords
correction glasses
bifocal correction
bifocal
glasses
correction
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
Other languages
English (en)
Inventor
Jacques Poli
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
Application granted granted Critical
Publication of FR846221A publication Critical patent/FR846221A/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

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR846221D 1938-11-18 1938-11-18 Lunettes à correction bifocale Expired FR846221A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR846221T 1938-11-18

Publications (1)

Publication Number Publication Date
FR846221A true FR846221A (fr) 1939-09-12

Family

ID=9313199

Family Applications (1)

Application Number Title Priority Date Filing Date
FR846221D Expired FR846221A (fr) 1938-11-18 1938-11-18 Lunettes à correction bifocale

Country Status (1)

Country Link
FR (1) FR846221A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2535321A (en) * 1948-09-22 1950-12-26 John L Rooney Adjustable eyeglasses
US2574960A (en) * 1946-10-14 1951-11-13 Henry A Courmettes Cataract bifocal lens

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2574960A (en) * 1946-10-14 1951-11-13 Henry A Courmettes Cataract bifocal lens
US2535321A (en) * 1948-09-22 1950-12-26 John L Rooney Adjustable eyeglasses

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