FR518728A - Four lens eye glass - Google Patents

Four lens eye glass

Info

Publication number
FR518728A
FR518728A FR518728DA FR518728A FR 518728 A FR518728 A FR 518728A FR 518728D A FR518728D A FR 518728DA FR 518728 A FR518728 A FR 518728A
Authority
FR
France
Prior art keywords
eye glass
lens eye
lens
glass
eye
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
Carl Zeiss
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.)
Carl Zeiss AG
Original Assignee
Carl Zeiss AG
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 Carl Zeiss AG filed Critical Carl Zeiss AG
Application granted granted Critical
Publication of FR518728A publication Critical patent/FR518728A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B25/00—Eyepieces; Magnifying glasses
    • G02B25/001—Eyepieces

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
FR518728D 1917-11-24 1920-07-02 Four lens eye glass Expired FR518728A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE350333T 1917-11-24

Publications (1)

Publication Number Publication Date
FR518728A true FR518728A (en) 1921-05-30

Family

ID=6261339

Family Applications (1)

Application Number Title Priority Date Filing Date
FR518728D Expired FR518728A (en) 1917-11-24 1920-07-02 Four lens eye glass

Country Status (3)

Country Link
DE (1) DE350333C (en)
FR (1) FR518728A (en)
GB (1) GB144321A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1167056B (en) * 1960-12-17 1964-04-02 Rodenstock Optik G Wide angle lens

Also Published As

Publication number Publication date
DE350333C (en) 1922-03-17
GB144321A (en) 1921-06-23

Similar Documents

Publication Publication Date Title
FR518728A (en) Four lens eye glass
FR478320A (en) Multi-focal eye lens
CA178941A (en) Eye glass lens
FR519979A (en) Four-lens photographic lens
FR479034A (en) Glass casket
CH58470A (en) Glass mosaic
FR537949A (en) Improvements in the manufacture of glass construction elements
CH71167A (en) Picture frame with protective glass
CA169198A (en) Eye glass holder
CA184736A (en) Eye glass
ES59218A1 (en) Modifications introduced in the elements of the "automatic" closures with glass covers.
FR461759A (en) Medication glass
FR479512A (en) Glass picking and molding machine
FR473013A (en) Glass for optical instruments
FR20921E (en) Artificial eye in glass or enamel blown in a mold
FR438564A (en) Glass saucer with counter
FR467241A (en) Glass fan
FR477642A (en) Glass paver
FR450972A (en) Special glass for light diffusion
FR507386A (en) Relief image on glass
FR522883A (en) Continuous melting glass crucible
FR518731A (en) Four-lens lens with spherical, chromatic and astigmatic correction
FR488288A (en) Interchangeable glass ball lubricator system
CH80800A (en) Automatic glass blowing machine
FR23824E (en) Interchangeable glass ball lubricator system