GB506321A - Improvements in microscope objectives - Google Patents

Improvements in microscope objectives

Info

Publication number
GB506321A
GB506321A GB29039/38A GB2903938A GB506321A GB 506321 A GB506321 A GB 506321A GB 29039/38 A GB29039/38 A GB 29039/38A GB 2903938 A GB2903938 A GB 2903938A GB 506321 A GB506321 A GB 506321A
Authority
GB
United Kingdom
Prior art keywords
meniscus
dispersive
objective
radius
less
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
GB29039/38A
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 GB506321A publication Critical patent/GB506321A/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

506,321. Lenses. ZEISS, C., [Firm of]. Oct. 7, 1.938, No. 29039. Convention date, Oct. 13, 1937. [Class 97 (i)] A microscope objective comprises a front meniscus member and another meniscus separated from the first by at least three air-spaced positive members, the axial thickness of each meniscus being greater than half the radius of curvature of its dispersive outer surface, the said radius being less than that of the convergent outer surface, and the algebraic sum of the powers of all the surfaces of each meniscus being negative. The algebraic value of the refractive power of each meniscus is preferably greater than one third of the said sum. The radius of curvature of the dispersive outer surface of the front meniscus is numerically less than the focal length of the objective and that of the dispersive outer surface of the rear meniscus is less than twice the focal length. The dispersive outer surface of the front meniscus is turned towards the front and that of the rear meniscus is turned towards the rear. In the case of an immersion objective, the cavity caused by the front concave surface of the objective may be substantially filled by a lens whose refractive index approximately equals that of the immersion liquid. Data are given.
GB29039/38A 1937-10-13 1938-10-07 Improvements in microscope objectives Expired GB506321A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE506321X 1937-10-13

Publications (1)

Publication Number Publication Date
GB506321A true GB506321A (en) 1939-05-25

Family

ID=6546526

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29039/38A Expired GB506321A (en) 1937-10-13 1938-10-07 Improvements in microscope objectives

Country Status (1)

Country Link
GB (1) GB506321A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977067C (en) * 1950-07-17 1965-01-07 Leitz Ernst Gmbh Microscope objective

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977067C (en) * 1950-07-17 1965-01-07 Leitz Ernst Gmbh Microscope objective

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