GB191026317A - Improvements in Photographic Objectives. - Google Patents

Improvements in Photographic Objectives.

Info

Publication number
GB191026317A
GB191026317A GB191026317DA GB191026317A GB 191026317 A GB191026317 A GB 191026317A GB 191026317D A GB191026317D A GB 191026317DA GB 191026317 A GB191026317 A GB 191026317A
Authority
GB
United Kingdom
Prior art keywords
lenses
photographic objectives
photographic
objectives
objective
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
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 GB191026317A publication Critical patent/GB191026317A/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 -
    • G02B9/02—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having one + component only

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

26,317. Zeiss, C., [Firm of]. Nov. 26, 1909, [Convention date]. Lenses. - In photographic objectives in which three lenses are cemented together, the lenses and cemented surfaces being as shown, the middle lens is made of glass having a refractive index nD lying between 1À52 and 1À53. The combination may form a single objective, or part of a double objective. Specification 29,447/06 is referred to.
GB191026317D 1909-11-26 1910-11-12 Improvements in Photographic Objectives. Expired GB191026317A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE191026317X 1909-11-26

Publications (1)

Publication Number Publication Date
GB191026317A true GB191026317A (en) 1911-03-23

Family

ID=32479157

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191026317D Expired GB191026317A (en) 1909-11-26 1910-11-12 Improvements in Photographic Objectives.

Country Status (1)

Country Link
GB (1) GB191026317A (en)

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