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GB978816A - Improvements in microscope objectives - Google Patents

Improvements in microscope objectives

Info

Publication number
GB978816A
GB978816A GB1675163A GB1675163A GB978816A GB 978816 A GB978816 A GB 978816A GB 1675163 A GB1675163 A GB 1675163A GB 1675163 A GB1675163 A GB 1675163A GB 978816 A GB978816 A GB 978816A
Authority
GB
United Kingdom
Prior art keywords
lens
image
microscope objectives
positive lens
microscope
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
GB1675163A
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.)
MEOPTA PRAHA
Original Assignee
MEOPTA PRAHA
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 MEOPTA PRAHA filed Critical MEOPTA PRAHA
Publication of GB978816A publication Critical patent/GB978816A/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)
  • Telescopes (AREA)
  • Microscoopes, Condenser (AREA)

Abstract

978,816. Microscope objectives. MEOPTA PRAHA NARODNI PODNIK. April 29,1963 [Dec. 19, 1962], No. 16751/63. Heading G2J. A variable focal length objective for a microscope comprises a fixed front positive lens, a negative lens and a second positive lens, the last two being independently movable along the optical axis of the system to vary the power while producing an image in a fixed plane. The focal lengths of the lens lie in the ranges 0.12a # 0. 2a, -0.06a # -0. 1a, and 0.12a # 0.2a respectively where a is the distance between the image and the object. Optical data given in the Specification.
GB1675163A 1962-12-19 1963-04-29 Improvements in microscope objectives Expired GB978816A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS713662 1962-12-19

Publications (1)

Publication Number Publication Date
GB978816A true GB978816A (en) 1964-12-23

Family

ID=5419923

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1675163A Expired GB978816A (en) 1962-12-19 1963-04-29 Improvements in microscope objectives

Country Status (2)

Country Link
AT (1) AT238961B (en)
GB (1) GB978816A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2261525A (en) * 1991-10-21 1993-05-19 Asahi Optical Co Ltd Three or four group zoom lens
US9766443B2 (en) 2012-04-03 2017-09-19 Carl Zeiss Meditec Ag Varioscope optical unit and microscope having a varioscope optical unit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3202075A1 (en) * 1982-01-23 1983-08-04 Fa. Carl Zeiss, 7920 Heidenheim SYSTEM VARIABLE CUTTING AND FOCAL LENGTH

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2261525A (en) * 1991-10-21 1993-05-19 Asahi Optical Co Ltd Three or four group zoom lens
US5347399A (en) * 1991-10-21 1994-09-13 Asahi Kogaku Kogyo Kabushiki Kaisha Zoom lens system
GB2261525B (en) * 1991-10-21 1995-03-22 Asahi Optical Co Ltd Three group zoom lens system
US9766443B2 (en) 2012-04-03 2017-09-19 Carl Zeiss Meditec Ag Varioscope optical unit and microscope having a varioscope optical unit

Also Published As

Publication number Publication date
AT238961B (en) 1965-03-10

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