GB480643A - Improved photographic lens system - Google Patents

Improved photographic lens system

Info

Publication number
GB480643A
GB480643A GB16053/37A GB1605337A GB480643A GB 480643 A GB480643 A GB 480643A GB 16053/37 A GB16053/37 A GB 16053/37A GB 1605337 A GB1605337 A GB 1605337A GB 480643 A GB480643 A GB 480643A
Authority
GB
United Kingdom
Prior art keywords
members
meniscus
collecting
lens system
photographic lens
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
GB16053/37A
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 GB480643A publication Critical patent/GB480643A/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 -
    • G02B9/34—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only

Landscapes

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

Abstract

480,643. Lenses. LEITZ GES., E. June 9, 1937, No. 16053. Convention date, Aug. 15, 1936. [Class 97 (i)] A photographic lens system wherein two collecting members enclose two dispersing meniscus members with concave surfaces facing each other, at least the meniscus member on the image side containing a cemented surface and both collecting members being biconvex, all four members being separated by air gaps, is characterized in that at least the collecting member on the object side contains a cemented surface which is concave towards the object side and is so highly dispersing that a light pencil arriving parallel to the axis of the system is overcorrected with regard to its intersection distance in relation to the paraxial ray after refraction at the first and second surfaces. The front meniscus and the rear collecting members may be simple lenses. Data are given for one example.
GB16053/37A 1936-08-15 1937-06-09 Improved photographic lens system Expired GB480643A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE480643X 1936-08-15

Publications (1)

Publication Number Publication Date
GB480643A true GB480643A (en) 1938-02-25

Family

ID=6542570

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16053/37A Expired GB480643A (en) 1936-08-15 1937-06-09 Improved photographic lens system

Country Status (1)

Country Link
GB (1) GB480643A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1110903B (en) * 1958-02-20 1961-07-13 Zeiss Carl Fa Photographic lens
US3049975A (en) * 1958-10-20 1962-08-21 Farrand Optical Co Inc Four-component wide-angle objective lens of gaussian type
DE1214430B (en) * 1958-10-20 1966-04-14 Farrand Optical Co Inc Four-part Gauss lens with a large angle of view

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1110903B (en) * 1958-02-20 1961-07-13 Zeiss Carl Fa Photographic lens
US3049975A (en) * 1958-10-20 1962-08-21 Farrand Optical Co Inc Four-component wide-angle objective lens of gaussian type
DE1214430B (en) * 1958-10-20 1966-04-14 Farrand Optical Co Inc Four-part Gauss lens with a large angle of view

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