GB945467A - Improvements in or relating to optical image-forming systems - Google Patents

Improvements in or relating to optical image-forming systems

Info

Publication number
GB945467A
GB945467A GB3586658A GB3586658A GB945467A GB 945467 A GB945467 A GB 945467A GB 3586658 A GB3586658 A GB 3586658A GB 3586658 A GB3586658 A GB 3586658A GB 945467 A GB945467 A GB 945467A
Authority
GB
United Kingdom
Prior art keywords
spherical
objective
relating
bring
optical image
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
GB3586658A
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.)
MICHAEL GRANT LEES CURTIES
Biochem Immunosystems Ltd
C BAKER INSTRUMENTS Ltd
Original Assignee
MICHAEL GRANT LEES CURTIES
Biochem Immunosystems Ltd
C BAKER INSTRUMENTS 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 MICHAEL GRANT LEES CURTIES, Biochem Immunosystems Ltd, C BAKER INSTRUMENTS Ltd filed Critical MICHAEL GRANT LEES CURTIES
Priority to GB3586658A priority Critical patent/GB945467A/en
Publication of GB945467A publication Critical patent/GB945467A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/02—Objectives

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

945,467. Microscope objectives. C. BAKER INSTRUMENTS Ltd., and MICHAEL GRANT LEES CURTES. Feb. 5, 1960 [Nov. 7, 1958], No. 35866/58. Heading G2J. A microscope objective includes spherical refracting surfaces adapted to provide a flat image field but with wave-front aberrations (e.g. spherical aberration) exceeding the Rayleigh limit, and at least one aspherical refracting surface adapted to bring said aberrations within the said limit. As shown, the objective comprises a positive system 11 and a negative system 17 which have spherical surfaces giving a flat image field. In this objective, an aspherical refracting surface is provided by a layer deposited as by the process described in Specification 791, 286 on the spherical surface 23 of the positive system 11 to bring the wave-front aberration within the Rayleigh limit.
GB3586658A 1958-11-07 1958-11-07 Improvements in or relating to optical image-forming systems Expired GB945467A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3586658A GB945467A (en) 1958-11-07 1958-11-07 Improvements in or relating to optical image-forming systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3586658A GB945467A (en) 1958-11-07 1958-11-07 Improvements in or relating to optical image-forming systems

Publications (1)

Publication Number Publication Date
GB945467A true GB945467A (en) 1964-01-02

Family

ID=10382416

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3586658A Expired GB945467A (en) 1958-11-07 1958-11-07 Improvements in or relating to optical image-forming systems

Country Status (1)

Country Link
GB (1) GB945467A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3399017A (en) * 1965-08-25 1968-08-27 Bausch & Lomb Flat field metallurgical microscope objective
US3481665A (en) * 1968-05-02 1969-12-02 Bausch & Lomb Multi-powered micro-objective group having common aberration correcting means
US3507554A (en) * 1967-05-10 1970-04-21 Bausch & Lomb 5x magnification semi-objective with field flattening lens

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3399017A (en) * 1965-08-25 1968-08-27 Bausch & Lomb Flat field metallurgical microscope objective
US3507554A (en) * 1967-05-10 1970-04-21 Bausch & Lomb 5x magnification semi-objective with field flattening lens
US3481665A (en) * 1968-05-02 1969-12-02 Bausch & Lomb Multi-powered micro-objective group having common aberration correcting means

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