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GB438860A - Improvements in microscope objectives - Google Patents

Improvements in microscope objectives

Info

Publication number
GB438860A
GB438860A GB20736/35A GB2073635A GB438860A GB 438860 A GB438860 A GB 438860A GB 20736/35 A GB20736/35 A GB 20736/35A GB 2073635 A GB2073635 A GB 2073635A GB 438860 A GB438860 A GB 438860A
Authority
GB
United Kingdom
Prior art keywords
objective
zeiss
lenses
achromatic
focal length
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
GB20736/35A
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 GB438860A publication Critical patent/GB438860A/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)

Abstract

438,860. Lenses. ZEISS, C., [Firm of], Carl-Zeiss-Strasse, Jena, Germany. July 22, 1935, No. 20736. Convention date, Aug. 3, 1934. [Class 97 (i)] A microscope objective designed to have a flat field consists of two convergent groups of lenses, the front group I..IV producing a virtual image of the observed object and having a positive Petzval sum, and the rear group V .. VIII comprising a divergent member VI between two convergent members V, VII and having a negative Petzval sum. The front group effects # to 1/@3 of the total magnification of the objective. Data are given for the example shown which is an achromatic objective with a focal length of 5 mm., and for a second example consisting of an achromatic immersion objective with a focal length of 2À055 mm. Specification 353,338 is referred to.
GB20736/35A 1934-08-03 1935-07-22 Improvements in microscope objectives Expired GB438860A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE438860X 1934-08-03

Publications (1)

Publication Number Publication Date
GB438860A true GB438860A (en) 1935-11-25

Family

ID=6507223

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20736/35A Expired GB438860A (en) 1934-08-03 1935-07-22 Improvements in microscope objectives

Country Status (1)

Country Link
GB (1) GB438860A (en)

Cited By (2)

* 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
DE102004036114A1 (en) * 2004-07-24 2006-02-16 Carl Zeiss Jena Gmbh Liquid immersion microscope objective

Cited By (4)

* 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
DE102004036114A1 (en) * 2004-07-24 2006-02-16 Carl Zeiss Jena Gmbh Liquid immersion microscope objective
US7133212B2 (en) 2004-07-24 2006-11-07 Carl Zeiss Jena Gmbh Liquid immersion microscope objective
DE102004036114B4 (en) * 2004-07-24 2012-04-19 Carl Zeiss Microlmaging Gmbh Liquid immersion microscope objective

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