AT266480B - Objectively variable focal length for imaging close objects at a short distance, in particular microscope or stereo microscope objective - Google Patents

Objectively variable focal length for imaging close objects at a short distance, in particular microscope or stereo microscope objective

Info

Publication number
AT266480B
AT266480B AT207066A AT207066A AT266480B AT 266480 B AT266480 B AT 266480B AT 207066 A AT207066 A AT 207066A AT 207066 A AT207066 A AT 207066A AT 266480 B AT266480 B AT 266480B
Authority
AT
Austria
Prior art keywords
objectively
focal length
short distance
microscope
variable focal
Prior art date
Application number
AT207066A
Other languages
German (de)
Original Assignee
Zd Y Prumyslove Automatizace K
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 Zd Y Prumyslove Automatizace K filed Critical Zd Y Prumyslove Automatizace K
Application granted granted Critical
Publication of AT266480B publication Critical patent/AT266480B/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/18—Arrangements with more than one light path, e.g. for comparing two specimens
    • G02B21/20—Binocular arrangements
    • G02B21/22—Stereoscopic arrangements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/143—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only
    • G02B15/1431—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only the first group being positive
    • G02B15/143105—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only the first group being positive arranged +-+
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/143—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only
    • G02B15/1431—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only the first group being positive
    • G02B15/143101—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only the first group being positive arranged +--
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/143—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only
    • G02B15/1435—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only the first group being negative
    • G02B15/143507—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only the first group being negative arranged -++
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/02—Objectives
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/02—Objectives
    • G02B21/025—Objectives with variable magnification

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Lenses (AREA)
  • Microscoopes, Condenser (AREA)
AT207066A 1965-03-04 1966-03-04 Objectively variable focal length for imaging close objects at a short distance, in particular microscope or stereo microscope objective AT266480B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS146965 1965-03-04

Publications (1)

Publication Number Publication Date
AT266480B true AT266480B (en) 1968-11-25

Family

ID=5349164

Family Applications (1)

Application Number Title Priority Date Filing Date
AT207066A AT266480B (en) 1965-03-04 1966-03-04 Objectively variable focal length for imaging close objects at a short distance, in particular microscope or stereo microscope objective

Country Status (4)

Country Link
AT (1) AT266480B (en)
CH (1) CH455313A (en)
DE (1) DE1497652A1 (en)
GB (1) GB1103993A (en)

Also Published As

Publication number Publication date
GB1103993A (en) 1968-02-21
CH455313A (en) 1968-06-28
DE1497652A1 (en) 1969-11-20

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