JPH0124285B2 - - Google Patents

Info

Publication number
JPH0124285B2
JPH0124285B2 JP56151402A JP15140281A JPH0124285B2 JP H0124285 B2 JPH0124285 B2 JP H0124285B2 JP 56151402 A JP56151402 A JP 56151402A JP 15140281 A JP15140281 A JP 15140281A JP H0124285 B2 JPH0124285 B2 JP H0124285B2
Authority
JP
Japan
Prior art keywords
lens group
lens
distance
optical system
variable focus
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
JP56151402A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5854311A (ja
Inventor
Fumi Hayashida
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 JP56151402A priority Critical patent/JPS5854311A/ja
Publication of JPS5854311A publication Critical patent/JPS5854311A/ja
Publication of JPH0124285B2 publication Critical patent/JPH0124285B2/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Measurement Of Optical Distance (AREA)
  • Lenses (AREA)
  • Automatic Focus Adjustment (AREA)
JP56151402A 1981-09-26 1981-09-26 可変焦点光学系 Granted JPS5854311A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56151402A JPS5854311A (ja) 1981-09-26 1981-09-26 可変焦点光学系

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56151402A JPS5854311A (ja) 1981-09-26 1981-09-26 可変焦点光学系

Publications (2)

Publication Number Publication Date
JPS5854311A JPS5854311A (ja) 1983-03-31
JPH0124285B2 true JPH0124285B2 (enrdf_load_stackoverflow) 1989-05-11

Family

ID=15517801

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56151402A Granted JPS5854311A (ja) 1981-09-26 1981-09-26 可変焦点光学系

Country Status (1)

Country Link
JP (1) JPS5854311A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0293709U (enrdf_load_stackoverflow) * 1989-01-10 1990-07-25

Also Published As

Publication number Publication date
JPS5854311A (ja) 1983-03-31

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