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GB762591A - Improvements relating to optical objectives - Google Patents

Improvements relating to optical objectives

Info

Publication number
GB762591A
GB762591A GB3535653A GB3535653A GB762591A GB 762591 A GB762591 A GB 762591A GB 3535653 A GB3535653 A GB 3535653A GB 3535653 A GB3535653 A GB 3535653A GB 762591 A GB762591 A GB 762591A
Authority
GB
United Kingdom
Prior art keywords
component
meniscus
biconcave
optical
dec
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
GB3535653A
Inventor
Charles Gorrie Wynne
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.)
WRAY OPTICAL WORKS Ltd
Original Assignee
WRAY OPTICAL WORKS Ltd
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 WRAY OPTICAL WORKS Ltd filed Critical WRAY OPTICAL WORKS Ltd
Priority to GB3535653A priority Critical patent/GB762591A/en
Publication of GB762591A publication Critical patent/GB762591A/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

762,591. Optical objectives. WRAY (OPTICAL WORKS), Ltd. Dec.. 14, 1954 [Dec. 18, 1953]; No. 35356/53: Class 97 (1), In an objective consisting of four simple components the two outer components being convergent and having between them a biconcave divergent component to the rear and a meniscus component to the front with its two surfaces concave towards the biconcave component, the radius of curvature of the front surface of the biconcave component is greater than twice but less than three times that of its rear surface, the radius of the concave surface of the meniscus component is less than twice that of its convex surface and the meniscus component of the convergent component adjacent to it are each formed of a meniscus having an AbbÚ V number greater than 55.0. Numerical data are given for one example of the objective shown.
GB3535653A 1953-12-18 1953-12-18 Improvements relating to optical objectives Expired GB762591A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3535653A GB762591A (en) 1953-12-18 1953-12-18 Improvements relating to optical objectives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3535653A GB762591A (en) 1953-12-18 1953-12-18 Improvements relating to optical objectives

Publications (1)

Publication Number Publication Date
GB762591A true GB762591A (en) 1956-11-28

Family

ID=10376824

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3535653A Expired GB762591A (en) 1953-12-18 1953-12-18 Improvements relating to optical objectives

Country Status (1)

Country Link
GB (1) GB762591A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1184982B (en) * 1961-05-05 1965-01-07 Voigtlaender Ag Lens made from four free-standing individual lenses
FR2302537A1 (en) * 1975-02-27 1976-09-24 Bosch Gmbh Robert FOUR LENS LENS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1184982B (en) * 1961-05-05 1965-01-07 Voigtlaender Ag Lens made from four free-standing individual lenses
FR2302537A1 (en) * 1975-02-27 1976-09-24 Bosch Gmbh Robert FOUR LENS LENS

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