GB423468A - Improvements in or relating to lens systems for rapid objectives - Google Patents

Improvements in or relating to lens systems for rapid objectives

Info

Publication number
GB423468A
GB423468A GB5397/34A GB539734A GB423468A GB 423468 A GB423468 A GB 423468A GB 5397/34 A GB5397/34 A GB 5397/34A GB 539734 A GB539734 A GB 539734A GB 423468 A GB423468 A GB 423468A
Authority
GB
United Kingdom
Prior art keywords
members
dispersive
objectives
rapid
lens systems
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
GB5397/34A
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.)
Ernst Leitz Wetzlar GmbH
Original Assignee
Ernst Leitz Wetzlar GmbH
Ernst Leitz GmbH
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 Ernst Leitz Wetzlar GmbH, Ernst Leitz GmbH filed Critical Ernst Leitz Wetzlar GmbH
Publication of GB423468A publication Critical patent/GB423468A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below

Landscapes

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

Abstract

423,468. Lenses. LEITZ GES., E., Optical Works, Wetzlar, Germany. Feb. 19, 1934, No. 5397. Convention date, March 9, 1933. [Class 97 (i)] Relates to lens systems for rapid objectives, of the kind comprising at least four members separated by air spaces, some of the members being compounded and at least two being dispersive meniscus members with their concave surfaces facing each other. According to the invention all the curved cemented surfaces in the dispersive members exert a collective action for all the colours of the visible spectrum when the rays incident on the first surface of the system are parallel, these cemented surfaces being less curved than the air-exposed surfaces of the said dispersive members and being convex towards the incident light. Data are given.
GB5397/34A 1933-03-09 1934-02-19 Improvements in or relating to lens systems for rapid objectives Expired GB423468A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE423468X 1933-03-09

Publications (1)

Publication Number Publication Date
GB423468A true GB423468A (en) 1935-02-01

Family

ID=6470475

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5397/34A Expired GB423468A (en) 1933-03-09 1934-02-19 Improvements in or relating to lens systems for rapid objectives

Country Status (1)

Country Link
GB (1) GB423468A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467667A (en) * 1946-07-11 1949-04-19 Jesse L Greenstein Four component lens system for correcting curvature of field
US2475938A (en) * 1943-11-20 1949-07-12 Eastman Kodak Co Four-component objective for microcopying cameras
US2627205A (en) * 1950-01-13 1953-02-03 Voigtlander & Sohn Ag Corrected four-unit photographic objective comprising two half systems enclosing thediaphragm
US2627204A (en) * 1950-04-29 1953-02-03 Voigtlander & Sohn Ag Four-component gauss-type photographic objective of high lighttransmitting capacity
US2645974A (en) * 1951-01-31 1953-07-21 Canon Camera Company Ltd High aperture wide angle six element gauss type objective lens system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475938A (en) * 1943-11-20 1949-07-12 Eastman Kodak Co Four-component objective for microcopying cameras
US2467667A (en) * 1946-07-11 1949-04-19 Jesse L Greenstein Four component lens system for correcting curvature of field
US2627205A (en) * 1950-01-13 1953-02-03 Voigtlander & Sohn Ag Corrected four-unit photographic objective comprising two half systems enclosing thediaphragm
US2627204A (en) * 1950-04-29 1953-02-03 Voigtlander & Sohn Ag Four-component gauss-type photographic objective of high lighttransmitting capacity
US2645974A (en) * 1951-01-31 1953-07-21 Canon Camera Company Ltd High aperture wide angle six element gauss type objective lens system

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