FR519979A - Four-lens photographic lens - Google Patents

Four-lens photographic lens

Info

Publication number
FR519979A
FR519979A FR519979A FR519979DA FR519979A FR 519979 A FR519979 A FR 519979A FR 519979 A FR519979 A FR 519979A FR 519979D A FR519979D A FR 519979DA FR 519979 A FR519979 A FR 519979A
Authority
FR
France
Prior art keywords
lens
photographic
photographic lens
lens photographic
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
FR519979A
Other languages
French (fr)
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 FR519979A publication Critical patent/FR519979A/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 -
    • G02B9/12—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
FR519979A 1917-11-14 1920-07-09 Four-lens photographic lens Expired FR519979A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE519979X 1917-11-14

Publications (1)

Publication Number Publication Date
FR519979A true FR519979A (en) 1921-06-18

Family

ID=6550752

Family Applications (1)

Application Number Title Priority Date Filing Date
FR519979A Expired FR519979A (en) 1917-11-14 1920-07-09 Four-lens photographic lens

Country Status (2)

Country Link
FR (1) FR519979A (en)
GB (1) GB146213A (en)

Also Published As

Publication number Publication date
GB146213A (en) 1920-11-11

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