JPS57158610A - Zoom lens system capable of close-up shooting - Google Patents
Zoom lens system capable of close-up shootingInfo
- Publication number
- JPS57158610A JPS57158610A JP56043486A JP4348681A JPS57158610A JP S57158610 A JPS57158610 A JP S57158610A JP 56043486 A JP56043486 A JP 56043486A JP 4348681 A JP4348681 A JP 4348681A JP S57158610 A JPS57158610 A JP S57158610A
- Authority
- JP
- Japan
- Prior art keywords
- group
- lens
- close
- zooming
- shifted
- 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.)
- Granted
Links
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
- G02B15/22—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 movable lens means specially adapted for focusing at close distances
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56043486A JPS57158610A (en) | 1981-03-25 | 1981-03-25 | Zoom lens system capable of close-up shooting |
US06/359,436 US4448495A (en) | 1981-03-25 | 1982-03-18 | Zoom lens system capable of very close range photography |
DE19823210857 DE3210857A1 (de) | 1981-03-25 | 1982-03-24 | Varioobjektiv, welches fuer aufnahmen aus groesster naehe geeignet ist |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56043486A JPS57158610A (en) | 1981-03-25 | 1981-03-25 | Zoom lens system capable of close-up shooting |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57158610A true JPS57158610A (en) | 1982-09-30 |
JPS6151295B2 JPS6151295B2 (ja) | 1986-11-08 |
Family
ID=12665043
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56043486A Granted JPS57158610A (en) | 1981-03-25 | 1981-03-25 | Zoom lens system capable of close-up shooting |
Country Status (3)
Country | Link |
---|---|
US (1) | US4448495A (ja) |
JP (1) | JPS57158610A (ja) |
DE (1) | DE3210857A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5191203A (en) * | 1991-04-18 | 1993-03-02 | Mckinley Optics, Inc. | Stereo video endoscope objective lens system |
JP3360779B2 (ja) * | 1995-08-25 | 2002-12-24 | ペンタックス株式会社 | 高変倍ズームレンズ系 |
US6222681B1 (en) * | 1996-08-30 | 2001-04-24 | Minolta, Co., Ltd. | Zoom lens system |
JP3743587B2 (ja) * | 1996-09-30 | 2006-02-08 | 株式会社ニコン | 長焦点マイクロレンズ |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4993029A (ja) * | 1972-09-22 | 1974-09-04 | ||
JPS5132635A (en) * | 1974-09-14 | 1976-03-19 | Tokina Optical | Shikinkyorisatsueikanonazuumurenzukei |
JPS5270840A (en) * | 1975-12-08 | 1977-06-13 | Xerox Corp | Original handling device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1344261A (fr) * | 1962-05-28 | 1963-11-29 | Objectif de longueur focale variable | |
JPS4841903B1 (ja) * | 1969-07-12 | 1973-12-10 | ||
US4132463A (en) * | 1971-05-08 | 1979-01-02 | Canon Kabushiki Kaisha | Zoom optical system |
JPS52145051A (en) * | 1976-05-27 | 1977-12-02 | Minolta Camera Co Ltd | Zoom lens system permitting extra-close-up photographing |
-
1981
- 1981-03-25 JP JP56043486A patent/JPS57158610A/ja active Granted
-
1982
- 1982-03-18 US US06/359,436 patent/US4448495A/en not_active Expired - Lifetime
- 1982-03-24 DE DE19823210857 patent/DE3210857A1/de not_active Ceased
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4993029A (ja) * | 1972-09-22 | 1974-09-04 | ||
JPS5132635A (en) * | 1974-09-14 | 1976-03-19 | Tokina Optical | Shikinkyorisatsueikanonazuumurenzukei |
JPS5270840A (en) * | 1975-12-08 | 1977-06-13 | Xerox Corp | Original handling device |
Also Published As
Publication number | Publication date |
---|---|
US4448495A (en) | 1984-05-15 |
JPS6151295B2 (ja) | 1986-11-08 |
DE3210857A1 (de) | 1982-10-14 |
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