FR418366A - Bifocal proof glasses - Google Patents

Bifocal proof glasses

Info

Publication number
FR418366A
FR418366A FR418366DA FR418366A FR 418366 A FR418366 A FR 418366A FR 418366D A FR418366D A FR 418366DA FR 418366 A FR418366 A FR 418366A
Authority
FR
France
Prior art keywords
bifocal
proof glasses
glasses
proof
bifocal proof
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
Julius Faber
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR418366A publication Critical patent/FR418366A/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
    • G02C7/08—Auxiliary lenses; Arrangements for varying focal length
    • 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)
FR418366D 1910-07-18 1910-07-18 Bifocal proof glasses Expired FR418366A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR418366T 1910-07-18

Publications (1)

Publication Number Publication Date
FR418366A true FR418366A (en) 1910-12-07

Family

ID=1461686

Family Applications (1)

Application Number Title Priority Date Filing Date
FR418366D Expired FR418366A (en) 1910-07-18 1910-07-18 Bifocal proof glasses

Country Status (1)

Country Link
FR (1) FR418366A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2560036A1 (en) * 1984-02-27 1985-08-30 Weiss Jean Trial frame for ophthalmic lenses
FR2726373A1 (en) * 1994-10-28 1996-05-03 Modai Philippe Trial spectacles, esp. for trying on new frames

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2560036A1 (en) * 1984-02-27 1985-08-30 Weiss Jean Trial frame for ophthalmic lenses
FR2726373A1 (en) * 1994-10-28 1996-05-03 Modai Philippe Trial spectacles, esp. for trying on new frames

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