JPH0146045B2 - - Google Patents
Info
- Publication number
- JPH0146045B2 JPH0146045B2 JP58088196A JP8819683A JPH0146045B2 JP H0146045 B2 JPH0146045 B2 JP H0146045B2 JP 58088196 A JP58088196 A JP 58088196A JP 8819683 A JP8819683 A JP 8819683A JP H0146045 B2 JPH0146045 B2 JP H0146045B2
- Authority
- JP
- Japan
- Prior art keywords
- lens group
- lens
- magnification
- negative
- 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
Links
- 239000002131 composite material Substances 0.000 claims 1
- 230000004075 alteration Effects 0.000 description 21
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/24—Optical objectives specially designed for the purposes specified below for reproducing or copying at short object distances
-
- 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
- G02B15/16—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 with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
- G02B15/177—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 with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a negative front lens or group of lenses
-
- 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
- G02B15/144—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 four groups only
- G02B15/1445—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 four groups only the first group being negative
- G02B15/144511—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 four groups only the first group being negative arranged -+-+
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Lenses (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58088196A JPS59214009A (ja) | 1983-05-19 | 1983-05-19 | 高変倍有限距離用ズ−ムレンズ |
IT48211/84A IT1178378B (it) | 1983-05-19 | 1984-05-17 | Obiettivo zoom di elevata potenza varibile per distanze finite |
DE19843418639 DE3418639A1 (de) | 1983-05-19 | 1984-05-18 | Varioobjektiv fuer endliche abstaende |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58088196A JPS59214009A (ja) | 1983-05-19 | 1983-05-19 | 高変倍有限距離用ズ−ムレンズ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59214009A JPS59214009A (ja) | 1984-12-03 |
JPH0146045B2 true JPH0146045B2 (ru) | 1989-10-05 |
Family
ID=13936141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58088196A Granted JPS59214009A (ja) | 1983-05-19 | 1983-05-19 | 高変倍有限距離用ズ−ムレンズ |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS59214009A (ru) |
DE (1) | DE3418639A1 (ru) |
IT (1) | IT1178378B (ru) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH065636U (ja) * | 1991-12-25 | 1994-01-25 | 齋藤遠心機工業株式会社 | 漢方薬の煎じ装置 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2899005B2 (ja) * | 1989-01-30 | 1999-06-02 | キヤノン株式会社 | 内蔵フォーカスレンズを具えたズームレンズ |
DE4315630C2 (de) * | 1993-05-04 | 1996-01-11 | Zeiss Carl Jena Gmbh | Varioobjektiv mit endlicher Übertragungslänge |
DE4344366C2 (de) * | 1993-12-24 | 1997-05-28 | Zeiss Carl Jena Gmbh | Optisches System mit variablem Abbildungsmaßstab |
JP4507543B2 (ja) * | 2003-09-29 | 2010-07-21 | 株式会社ニコン | ズームレンズ |
JP5457750B2 (ja) * | 2009-08-03 | 2014-04-02 | オリンパス株式会社 | 変倍光学系及びそれを有する撮像装置 |
JP6171344B2 (ja) * | 2013-01-08 | 2017-08-02 | リコーイメージング株式会社 | ズームレンズ系及びこれを備えた電子撮像装置 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5711315A (en) * | 1980-06-24 | 1982-01-21 | Konishiroku Photo Ind Co Ltd | Zoom lens with highly variable magnification preceding negative groups |
-
1983
- 1983-05-19 JP JP58088196A patent/JPS59214009A/ja active Granted
-
1984
- 1984-05-17 IT IT48211/84A patent/IT1178378B/it active
- 1984-05-18 DE DE19843418639 patent/DE3418639A1/de active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH065636U (ja) * | 1991-12-25 | 1994-01-25 | 齋藤遠心機工業株式会社 | 漢方薬の煎じ装置 |
Also Published As
Publication number | Publication date |
---|---|
IT1178378B (it) | 1987-09-09 |
IT8448211A0 (it) | 1984-05-17 |
JPS59214009A (ja) | 1984-12-03 |
DE3418639A1 (de) | 1984-11-22 |
DE3418639C2 (ru) | 1987-12-17 |
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