JPS56128911A - Subminiature zoom lens - Google Patents
Subminiature zoom lensInfo
- Publication number
- JPS56128911A JPS56128911A JP3252480A JP3252480A JPS56128911A JP S56128911 A JPS56128911 A JP S56128911A JP 3252480 A JP3252480 A JP 3252480A JP 3252480 A JP3252480 A JP 3252480A JP S56128911 A JPS56128911 A JP S56128911A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- lens group
- whole system
- positive
- group
- 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.)
- Pending
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
-
- 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)
- Lenses (AREA)
Abstract
PURPOSE: To miniaturize the whole system by providing the 1st lens group of at least ≥2 positive lens and ≥1 negative lens, and the 2nd lens group of at least positive lens and negative lens successively from the object side so that their air interval is variable.
CONSTITUTION: From the object side, the 1st positive lens group has at least ≥2 positive lenses and at least ≥1, negative lens, and the 2nd negative lens group has at least one positive lens and at least one negative lens; and air interval D10 between the 1st and 2nd lens group is variable for zooming. Since the 1st lens group and 2nd group are arranged successively, the main plane position at the rear side of the whole system is closer to the object side than the 1st lens group, so the back focus is made much shorter than the focal length of the whole system and the final lens of the 2nd lens group becomes closer to film surface 3, so that whole system is miniaturized. Further, various aberrations are eliminated excellently.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3252480A JPS56128911A (en) | 1980-03-14 | 1980-03-14 | Subminiature zoom lens |
DE3109462A DE3109462C2 (en) | 1980-03-14 | 1981-03-12 | Photographic zoom lens |
US06/699,026 US4682860A (en) | 1980-03-14 | 1985-02-07 | Ultrasmall size zoom lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3252480A JPS56128911A (en) | 1980-03-14 | 1980-03-14 | Subminiature zoom lens |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56128911A true JPS56128911A (en) | 1981-10-08 |
Family
ID=12361341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3252480A Pending JPS56128911A (en) | 1980-03-14 | 1980-03-14 | Subminiature zoom lens |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS56128911A (en) |
DE (1) | DE3109462C2 (en) |
Cited By (46)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5744115A (en) * | 1980-08-30 | 1982-03-12 | Asahi Optical Co Ltd | Reflex telephoto zoom lens system |
JPS57200537U (en) * | 1981-06-13 | 1982-12-20 | ||
JPS60263113A (en) * | 1984-06-11 | 1985-12-26 | Canon Inc | Small-sized zoom lens |
JPS61148414A (en) * | 1984-12-21 | 1986-07-07 | Canon Inc | Compact zoom lens |
JPS6239811A (en) * | 1985-08-14 | 1987-02-20 | Asahi Optical Co Ltd | Copying use variable power lens |
US4653870A (en) * | 1984-03-07 | 1987-03-31 | Olympus Optical Co., Ltd. | Compact vari-focal photographic lens system |
JPS62138817A (en) * | 1985-12-12 | 1987-06-22 | Canon Inc | Small-sized zoom lens |
DE3702351A1 (en) * | 1986-01-28 | 1987-07-30 | Canon Kk | VARIO LENS WITH A LENS MEMBERSHIP OF VARIABLE MAGNIFICATION |
US4701033A (en) * | 1983-09-09 | 1987-10-20 | Minolta Camera Kabushiki Kaisha | Variable focal length lens system |
JPS62251710A (en) * | 1986-04-25 | 1987-11-02 | Olympus Optical Co Ltd | Compact zoom lens |
JPS62264019A (en) * | 1985-11-28 | 1987-11-17 | Asahi Optical Co Ltd | Zoom lens for compact camera |
JPS63311224A (en) * | 1987-06-12 | 1988-12-20 | Olympus Optical Co Ltd | Compact zoom lens |
US4822152A (en) * | 1986-08-11 | 1989-04-18 | Olympus Optical Co., Ltd. | Compact high-vari-focal ratio zoom lens system |
DE3902495A1 (en) * | 1988-01-29 | 1989-08-10 | Asahi Optical Co Ltd | ZOOM LENS SYSTEM FOR USE IN A COMPACT CAMERA |
DE3909755A1 (en) * | 1988-03-25 | 1989-10-05 | Asahi Optical Co Ltd | ZOOM LENS SYSTEM WITH A HIGH ZOOM RATIO FOR USE IN A COMPACT CAMERA |
JPH026917A (en) * | 1988-04-15 | 1990-01-11 | Konica Corp | Small-sized variable focal length lens |
DE3930032A1 (en) * | 1988-09-08 | 1990-03-15 | Asahi Optical Co Ltd | ZOOM LENS SYSTEM WITH A HIGH FOCAL LENGTH RATIO FOR USE IN A COMPACT CAMERA |
US4911539A (en) * | 1987-12-24 | 1990-03-27 | Nikon Corporation | Micro zoom lens |
JPH02120714A (en) * | 1988-10-31 | 1990-05-08 | Canon Inc | Zoom lens of small size |
JPH02190812A (en) * | 1989-01-20 | 1990-07-26 | Canon Inc | Two-group zoom lens |
US5002373A (en) * | 1988-02-10 | 1991-03-26 | Olympus Optical Co., Ltd. | Zoom lens system of inner focus type |
DE4030757A1 (en) * | 1989-09-29 | 1991-04-18 | Asahi Optical Co Ltd | ZOOM LENS SYSTEM FOR USE ON A COMPACT CAMERA |
JPH0396911A (en) * | 1989-09-08 | 1991-04-22 | Agency Of Ind Science & Technol | Systematic generating method for equivalent optical system |
DE4033293A1 (en) * | 1989-10-19 | 1991-04-25 | Asahi Optical Co Ltd | Zoom lens system for compact camera - consists of two groups of lens with mechanism to vary distance between groups |
DE4037213A1 (en) * | 1989-11-21 | 1991-06-13 | Asahi Optical Co Ltd | ZOOM LENS SYSTEM FOR USE IN A COMPACT CAMERA WITH A WIDE ANGLE DETECTING AREA |
DE4139431A1 (en) * | 1990-11-30 | 1992-06-04 | Asahi Optical Co Ltd | ZOOM LENS SYSTEM |
US5162947A (en) * | 1989-10-19 | 1992-11-10 | Asahi Kogaku Kogyo K.K. | Zoom lens system for use with a compact camera having a wide coverage of angles |
US5267084A (en) * | 1991-07-24 | 1993-11-30 | Olympus Optical Co., Ltd. | Compact, fast zoom lens system |
JPH0618783A (en) * | 1992-07-01 | 1994-01-28 | Konica Corp | Small-sized zoom lens |
US5283693A (en) * | 1990-06-13 | 1994-02-01 | Minolta Camera Kabushiki Kaisha | Compact zoom lens system |
US5327290A (en) * | 1989-10-13 | 1994-07-05 | Minolta Camera Kabushiki Kaisha | Compact size zoom lens system |
US5381270A (en) * | 1992-06-22 | 1995-01-10 | Fuji Photo Film Co., Ltd. | Compact zoom lens system |
US5418647A (en) * | 1992-01-14 | 1995-05-23 | Konica Corporation | Compact zoom lens for use in a lens shutter camera |
DE4042543C2 (en) * | 1989-11-21 | 1995-07-20 | Asahi Optical Co Ltd | Compact camera zoom lens system |
JPH07306361A (en) * | 1994-05-11 | 1995-11-21 | Canon Inc | Compact zoom lens |
JPH0829683A (en) * | 1994-07-13 | 1996-02-02 | Canon Inc | Small zoom lens |
DE3943741C2 (en) * | 1988-09-08 | 1996-02-22 | Asahi Optical Co Ltd | Zoom objective lens with wide range focal length |
DE4042554C2 (en) * | 1989-09-29 | 1996-12-19 | Asahi Optical Co Ltd | Camera zoom lens system |
US5757556A (en) * | 1995-05-10 | 1998-05-26 | Canon Kabushiki Kaisha | Zoom lens |
US5798873A (en) * | 1993-11-25 | 1998-08-25 | Canon Kabushiki Kaisha | Small-sized zoom lens |
US5815320A (en) * | 1993-01-14 | 1998-09-29 | Canon Kabushiki Kaisha | Zoom lens |
US6215600B1 (en) | 1997-09-30 | 2001-04-10 | Canon Kabushiki Kaisha | Zoom lens |
US6219190B1 (en) | 1998-11-06 | 2001-04-17 | Canon Kabushiki Kaisha | Zoom lens |
US6384986B1 (en) | 1999-02-02 | 2002-05-07 | Canon Kabushiki Kaisha | Zoom lens and optical apparatus having the same |
US6577452B2 (en) | 2001-01-31 | 2003-06-10 | Nikon Corporation | Variable focal length lens system |
JP2022171857A (en) * | 2018-11-29 | 2022-11-11 | キヤノン株式会社 | Optical system and imaging apparatus having the same |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5382432A (en) * | 1976-12-28 | 1978-07-20 | Canon Inc | Small zoom lens |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1017812B (en) * | 1955-04-26 | 1957-10-17 | Agfa Camera Werk Ag | Photographic telephoto lens |
US3170984A (en) * | 1961-05-29 | 1965-02-23 | Bausch & Lomb | Zoom optical system |
JPS4923912B1 (en) * | 1970-12-15 | 1974-06-19 | ||
CH559531A5 (en) * | 1973-04-19 | 1975-03-14 | Vogt Franz Voko Bueromoebelfab | |
JPS521537A (en) * | 1975-06-23 | 1977-01-07 | Nippon Steel Corp | Series cascade type combustion controlled apparatus |
JPS531037A (en) * | 1976-06-25 | 1978-01-07 | Toray Industries | Light deflector |
JPS6046688B2 (en) * | 1976-11-11 | 1985-10-17 | 富士写真光機株式会社 | zoom lens |
JPS6039204B2 (en) * | 1976-11-12 | 1985-09-05 | ミノルタ株式会社 | Two-component wide-angle zoom lens system |
JPS56917A (en) * | 1979-06-14 | 1981-01-08 | Katsuro Hayashi | Step stoker with chain grate |
JPH0676538B2 (en) | 1989-05-30 | 1994-09-28 | 旭化成工業株式会社 | Polyoxymethylene composition |
TW304261B (en) | 1996-03-12 | 1997-05-01 | Ibm | Tape pre-formatting with uniform data storage segments selectively mapped to fixed or variable sized independently addressable data storage partitions |
-
1980
- 1980-03-14 JP JP3252480A patent/JPS56128911A/en active Pending
-
1981
- 1981-03-12 DE DE3109462A patent/DE3109462C2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5382432A (en) * | 1976-12-28 | 1978-07-20 | Canon Inc | Small zoom lens |
Cited By (63)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5744115A (en) * | 1980-08-30 | 1982-03-12 | Asahi Optical Co Ltd | Reflex telephoto zoom lens system |
JPS6252842B2 (en) * | 1980-08-30 | 1987-11-07 | Asahi Optical Co Ltd | |
JPS57200537U (en) * | 1981-06-13 | 1982-12-20 | ||
US4701033A (en) * | 1983-09-09 | 1987-10-20 | Minolta Camera Kabushiki Kaisha | Variable focal length lens system |
US4653870A (en) * | 1984-03-07 | 1987-03-31 | Olympus Optical Co., Ltd. | Compact vari-focal photographic lens system |
JPS60263113A (en) * | 1984-06-11 | 1985-12-26 | Canon Inc | Small-sized zoom lens |
JPS6361641B2 (en) * | 1984-06-11 | 1988-11-29 | ||
JPS61148414A (en) * | 1984-12-21 | 1986-07-07 | Canon Inc | Compact zoom lens |
JPS6239811A (en) * | 1985-08-14 | 1987-02-20 | Asahi Optical Co Ltd | Copying use variable power lens |
US4720179A (en) * | 1985-11-28 | 1988-01-19 | Asahi Kogaku Kogyo Kabushiki Kaisha | Zoom lens system for use with a compact camera |
JPH0431565B2 (en) * | 1985-11-28 | 1992-05-26 | ||
JPS62264019A (en) * | 1985-11-28 | 1987-11-17 | Asahi Optical Co Ltd | Zoom lens for compact camera |
JPS62138817A (en) * | 1985-12-12 | 1987-06-22 | Canon Inc | Small-sized zoom lens |
DE3702351C2 (en) * | 1986-01-28 | 1993-06-24 | Canon K.K., Tokio/Tokyo, Jp | |
DE3702351A1 (en) * | 1986-01-28 | 1987-07-30 | Canon Kk | VARIO LENS WITH A LENS MEMBERSHIP OF VARIABLE MAGNIFICATION |
JPS62251710A (en) * | 1986-04-25 | 1987-11-02 | Olympus Optical Co Ltd | Compact zoom lens |
US4822152A (en) * | 1986-08-11 | 1989-04-18 | Olympus Optical Co., Ltd. | Compact high-vari-focal ratio zoom lens system |
JPS63311224A (en) * | 1987-06-12 | 1988-12-20 | Olympus Optical Co Ltd | Compact zoom lens |
US4911539A (en) * | 1987-12-24 | 1990-03-27 | Nikon Corporation | Micro zoom lens |
DE3902495A1 (en) * | 1988-01-29 | 1989-08-10 | Asahi Optical Co Ltd | ZOOM LENS SYSTEM FOR USE IN A COMPACT CAMERA |
US4906077A (en) * | 1988-01-29 | 1990-03-06 | Asahi Kogaku Kogyo Kabushiki Kaisha | Zoom lens system for use in a compact camera |
US5002373A (en) * | 1988-02-10 | 1991-03-26 | Olympus Optical Co., Ltd. | Zoom lens system of inner focus type |
DE3909755A1 (en) * | 1988-03-25 | 1989-10-05 | Asahi Optical Co Ltd | ZOOM LENS SYSTEM WITH A HIGH ZOOM RATIO FOR USE IN A COMPACT CAMERA |
US4984877A (en) * | 1988-03-25 | 1991-01-15 | Asahi Kogaku Kogyo Kabushiki Kaishi | High zoom-ratio/zoom lens system for use in a compact camera |
JPH026917A (en) * | 1988-04-15 | 1990-01-11 | Konica Corp | Small-sized variable focal length lens |
DE3930032A1 (en) * | 1988-09-08 | 1990-03-15 | Asahi Optical Co Ltd | ZOOM LENS SYSTEM WITH A HIGH FOCAL LENGTH RATIO FOR USE IN A COMPACT CAMERA |
DE3943741C2 (en) * | 1988-09-08 | 1996-02-22 | Asahi Optical Co Ltd | Zoom objective lens with wide range focal length |
US4978204A (en) * | 1988-09-08 | 1990-12-18 | Asahi Kogaku Kogyo Kabushik Kaisha | High zoom-ratio zoom lens system for use in a compact camera |
JPH02120714A (en) * | 1988-10-31 | 1990-05-08 | Canon Inc | Zoom lens of small size |
JPH02190812A (en) * | 1989-01-20 | 1990-07-26 | Canon Inc | Two-group zoom lens |
JPH0396911A (en) * | 1989-09-08 | 1991-04-22 | Agency Of Ind Science & Technol | Systematic generating method for equivalent optical system |
JP2676000B2 (en) * | 1989-09-08 | 1997-11-12 | 工業技術院長 | Systematic generation method of equivalent optical system |
DE4042554C2 (en) * | 1989-09-29 | 1996-12-19 | Asahi Optical Co Ltd | Camera zoom lens system |
DE4030757A1 (en) * | 1989-09-29 | 1991-04-18 | Asahi Optical Co Ltd | ZOOM LENS SYSTEM FOR USE ON A COMPACT CAMERA |
US5434712A (en) * | 1989-09-29 | 1995-07-18 | Asahi Kogaku Kogyo Kabushiki Kaisha | Zoom lens system for use with a compact camera |
US5309285A (en) * | 1989-09-29 | 1994-05-03 | Asahi Kogaku Kogyo Kabushiki Kaisha | Zoom lens system for use with a compact camera |
DE4030757C2 (en) * | 1989-09-29 | 1994-09-08 | Asahi Optical Co Ltd | Varifocal lens for use on a compact camera |
US5327290A (en) * | 1989-10-13 | 1994-07-05 | Minolta Camera Kabushiki Kaisha | Compact size zoom lens system |
DE4033293A1 (en) * | 1989-10-19 | 1991-04-25 | Asahi Optical Co Ltd | Zoom lens system for compact camera - consists of two groups of lens with mechanism to vary distance between groups |
US5162947A (en) * | 1989-10-19 | 1992-11-10 | Asahi Kogaku Kogyo K.K. | Zoom lens system for use with a compact camera having a wide coverage of angles |
DE4042540C2 (en) * | 1989-11-21 | 1997-04-10 | Asahi Optical Co Ltd | Varifocal lens for a compact camera |
DE4042542C2 (en) * | 1989-11-21 | 2001-02-15 | Asahi Optical Co Ltd | Varifocal lens for a compact camera |
DE4037213A1 (en) * | 1989-11-21 | 1991-06-13 | Asahi Optical Co Ltd | ZOOM LENS SYSTEM FOR USE IN A COMPACT CAMERA WITH A WIDE ANGLE DETECTING AREA |
DE4042543C2 (en) * | 1989-11-21 | 1995-07-20 | Asahi Optical Co Ltd | Compact camera zoom lens system |
US5164859A (en) * | 1989-11-21 | 1992-11-17 | Asahi Kogaku Kogyo K.K. | Zoom lens system for use with a compact camera having a wide coverage of angles |
US5283693A (en) * | 1990-06-13 | 1994-02-01 | Minolta Camera Kabushiki Kaisha | Compact zoom lens system |
DE4139431A1 (en) * | 1990-11-30 | 1992-06-04 | Asahi Optical Co Ltd | ZOOM LENS SYSTEM |
DE4139431C2 (en) * | 1990-11-30 | 2002-09-19 | Asahi Optical Co Ltd | zoom lens |
US5280390A (en) * | 1990-11-30 | 1994-01-18 | Asahi Kogaku Kogyo K.K. | Zoom lens system |
US5267084A (en) * | 1991-07-24 | 1993-11-30 | Olympus Optical Co., Ltd. | Compact, fast zoom lens system |
US5418647A (en) * | 1992-01-14 | 1995-05-23 | Konica Corporation | Compact zoom lens for use in a lens shutter camera |
US5381270A (en) * | 1992-06-22 | 1995-01-10 | Fuji Photo Film Co., Ltd. | Compact zoom lens system |
JPH0618783A (en) * | 1992-07-01 | 1994-01-28 | Konica Corp | Small-sized zoom lens |
US5815320A (en) * | 1993-01-14 | 1998-09-29 | Canon Kabushiki Kaisha | Zoom lens |
US5798873A (en) * | 1993-11-25 | 1998-08-25 | Canon Kabushiki Kaisha | Small-sized zoom lens |
JPH07306361A (en) * | 1994-05-11 | 1995-11-21 | Canon Inc | Compact zoom lens |
JPH0829683A (en) * | 1994-07-13 | 1996-02-02 | Canon Inc | Small zoom lens |
US5757556A (en) * | 1995-05-10 | 1998-05-26 | Canon Kabushiki Kaisha | Zoom lens |
US6215600B1 (en) | 1997-09-30 | 2001-04-10 | Canon Kabushiki Kaisha | Zoom lens |
US6219190B1 (en) | 1998-11-06 | 2001-04-17 | Canon Kabushiki Kaisha | Zoom lens |
US6384986B1 (en) | 1999-02-02 | 2002-05-07 | Canon Kabushiki Kaisha | Zoom lens and optical apparatus having the same |
US6577452B2 (en) | 2001-01-31 | 2003-06-10 | Nikon Corporation | Variable focal length lens system |
JP2022171857A (en) * | 2018-11-29 | 2022-11-11 | キヤノン株式会社 | Optical system and imaging apparatus having the same |
Also Published As
Publication number | Publication date |
---|---|
DE3109462C2 (en) | 1994-06-01 |
DE3109462A1 (en) | 1982-04-22 |
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