FR645124A - Movable lens system on fixed frame - Google Patents

Movable lens system on fixed frame

Info

Publication number
FR645124A
FR645124A FR645124DA FR645124A FR 645124 A FR645124 A FR 645124A FR 645124D A FR645124D A FR 645124DA FR 645124 A FR645124 A FR 645124A
Authority
FR
France
Prior art keywords
fixed frame
lens system
movable lens
movable
frame
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
Jean De La Greverie
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 FR645124A publication Critical patent/FR645124A/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
    • G02C9/00—Attaching auxiliary optical parts
    • G02C9/02—Attaching auxiliary optical parts by hinging

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Health & Medical Sciences (AREA)
FR645124D 1927-12-05 1927-12-05 Movable lens system on fixed frame Expired FR645124A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR645124T 1927-12-05

Publications (1)

Publication Number Publication Date
FR645124A true FR645124A (en) 1928-10-19

Family

ID=9000546

Family Applications (1)

Application Number Title Priority Date Filing Date
FR645124D Expired FR645124A (en) 1927-12-05 1927-12-05 Movable lens system on fixed frame

Country Status (1)

Country Link
FR (1) FR645124A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2449694A (en) * 1945-11-09 1948-09-21 Froelich Edward Eyeglass
US2582554A (en) * 1947-08-09 1952-01-15 William A Mendelsohn Sunglasses

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2449694A (en) * 1945-11-09 1948-09-21 Froelich Edward Eyeglass
US2582554A (en) * 1947-08-09 1952-01-15 William A Mendelsohn Sunglasses

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