FR788203A - Improvements in glasses for presbyopics, myopic, astigmatic in "double vision" with a minimum supplement - Google Patents

Improvements in glasses for presbyopics, myopic, astigmatic in "double vision" with a minimum supplement

Info

Publication number
FR788203A
FR788203A FR788203DA FR788203A FR 788203 A FR788203 A FR 788203A FR 788203D A FR788203D A FR 788203DA FR 788203 A FR788203 A FR 788203A
Authority
FR
France
Prior art keywords
presbyopics
myopic
astigmatic
glasses
double vision
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
French (fr)
Inventor
Veselago
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 FR788203A publication Critical patent/FR788203A/en
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)
FR788203D 1935-02-09 1935-02-09 Improvements in glasses for presbyopics, myopic, astigmatic in "double vision" with a minimum supplement Expired FR788203A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR788203T 1935-02-09

Publications (1)

Publication Number Publication Date
FR788203A true FR788203A (en) 1935-10-07

Family

ID=9219411

Family Applications (1)

Application Number Title Priority Date Filing Date
FR788203D Expired FR788203A (en) 1935-02-09 1935-02-09 Improvements in glasses for presbyopics, myopic, astigmatic in "double vision" with a minimum supplement

Country Status (1)

Country Link
FR (1) FR788203A (en)

Cited By (1)

* 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

Cited By (1)

* 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

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