JPH0128924B2 - - Google Patents

Info

Publication number
JPH0128924B2
JPH0128924B2 JP57023738A JP2373882A JPH0128924B2 JP H0128924 B2 JPH0128924 B2 JP H0128924B2 JP 57023738 A JP57023738 A JP 57023738A JP 2373882 A JP2373882 A JP 2373882A JP H0128924 B2 JPH0128924 B2 JP H0128924B2
Authority
JP
Japan
Prior art keywords
lens
magnification
lens group
eyepiece
objective lens
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
JP57023738A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58142310A (ja
Inventor
Kenji Yamada
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.)
Nikon Corp
Original Assignee
Nikon Corp
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 Nikon Corp filed Critical Nikon Corp
Priority to JP57023738A priority Critical patent/JPS58142310A/ja
Publication of JPS58142310A publication Critical patent/JPS58142310A/ja
Publication of JPH0128924B2 publication Critical patent/JPH0128924B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G02B15/142—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 two groups only
    • G02B15/1421—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 two groups only the first group being positive
    • 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
    • G02B15/142—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 two groups only
    • G02B15/1425—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 two groups only the first group being negative

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Telescopes (AREA)
  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)
  • Microscoopes, Condenser (AREA)
  • Lenses (AREA)
JP57023738A 1982-02-17 1982-02-17 変倍可能な観察光学系 Granted JPS58142310A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57023738A JPS58142310A (ja) 1982-02-17 1982-02-17 変倍可能な観察光学系

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57023738A JPS58142310A (ja) 1982-02-17 1982-02-17 変倍可能な観察光学系

Publications (2)

Publication Number Publication Date
JPS58142310A JPS58142310A (ja) 1983-08-24
JPH0128924B2 true JPH0128924B2 (de) 1989-06-06

Family

ID=12118647

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57023738A Granted JPS58142310A (ja) 1982-02-17 1982-02-17 変倍可能な観察光学系

Country Status (1)

Country Link
JP (1) JPS58142310A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0448508U (de) * 1989-12-29 1992-04-24

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3947084A (en) * 1975-02-28 1976-03-30 Hughes Aircraft Company Long-wave infrared afocal zoom telescope

Also Published As

Publication number Publication date
JPS58142310A (ja) 1983-08-24

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