GB158902A - Improvements in or relating to photographic lenses - Google Patents

Improvements in or relating to photographic lenses

Info

Publication number
GB158902A
GB158902A GB4541/21A GB454121A GB158902A GB 158902 A GB158902 A GB 158902A GB 4541/21 A GB4541/21 A GB 4541/21A GB 454121 A GB454121 A GB 454121A GB 158902 A GB158902 A GB 158902A
Authority
GB
United Kingdom
Prior art keywords
relating
photographic lenses
photographic
lenses
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
GB4541/21A
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.)
Optische Anstalt CP Goerz AG
Original Assignee
Optische Anstalt CP Goerz 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 Optische Anstalt CP Goerz AG filed Critical Optische Anstalt CP Goerz AG
Publication of GB158902A publication Critical patent/GB158902A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/04—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having two components only

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
GB4541/21A 1920-02-09 1921-02-08 Improvements in or relating to photographic lenses Expired GB158902A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE158902X 1920-02-09

Publications (1)

Publication Number Publication Date
GB158902A true GB158902A (en) 1921-04-28

Family

ID=5679982

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4541/21A Expired GB158902A (en) 1920-02-09 1921-02-08 Improvements in or relating to photographic lenses

Country Status (1)

Country Link
GB (1) GB158902A (en)

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