GB739113A - Anamorphotic ancillary lens system - Google Patents

Anamorphotic ancillary lens system

Info

Publication number
GB739113A
GB739113A GB21434/53A GB2143453A GB739113A GB 739113 A GB739113 A GB 739113A GB 21434/53 A GB21434/53 A GB 21434/53A GB 2143453 A GB2143453 A GB 2143453A GB 739113 A GB739113 A GB 739113A
Authority
GB
United Kingdom
Prior art keywords
doublet
cemented
negative
positive
per cent
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
GB21434/53A
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
Publication of GB739113A publication Critical patent/GB739113A/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
    • G02B13/08—Anamorphotic objectives

Landscapes

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

Abstract

739,113. Lenses. ZEISS-STIFTUNG, C., [trading as ZEISS, C., [Firm of]]. Aug. 4, 1953 [June 20, 1953], No. 21434/53. Class 97 (1). An afocal anamorphosing system for addition to a normal objective D on the longer conjugate side thereof comprises a positive cemented cylindrical doublet adjacent the objective and a negative cemented cylindrical doublet, the cylindrical axes being parallel, the two outer surfaces of each doublet being of' opposite sign, the cemented surface of the negative doublet having a positive power and being concave to the positive doublet, the cemented surface of the positive doublet having a negative power and being convex to the negative doublet, the outer radii of each doublet being of opposite sign, the refractive index difference at each cemented surface being greater than 0.1. Preferably the outer radii of each doublet differ by less than 20 per cent while the radii of the cemented surfaces preferably lie within 30 per cent and 60 per cent of the focal lengths of the respective doublets. Data are given for one example.
GB21434/53A 1953-06-20 1953-08-04 Anamorphotic ancillary lens system Expired GB739113A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE739113X 1953-06-20

Publications (1)

Publication Number Publication Date
GB739113A true GB739113A (en) 1955-10-26

Family

ID=6642960

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21434/53A Expired GB739113A (en) 1953-06-20 1953-08-04 Anamorphotic ancillary lens system

Country Status (1)

Country Link
GB (1) GB739113A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3511557A (en) * 1967-03-30 1970-05-12 Isco Optische Werke Gmbh Anamorphotic attachment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3511557A (en) * 1967-03-30 1970-05-12 Isco Optische Werke Gmbh Anamorphotic attachment

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