JPH043526B2 - - Google Patents
Info
- Publication number
- JPH043526B2 JPH043526B2 JP57097859A JP9785982A JPH043526B2 JP H043526 B2 JPH043526 B2 JP H043526B2 JP 57097859 A JP57097859 A JP 57097859A JP 9785982 A JP9785982 A JP 9785982A JP H043526 B2 JPH043526 B2 JP H043526B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- lens group
- positive
- negative
- 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.)
- Expired - Lifetime
Links
- 230000004075 alteration Effects 0.000 description 17
- 239000002131 composite material Substances 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 3
- 206010010071 Coma Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
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
- G02B15/143—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 three groups only
- G02B15/1431—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 three groups only the first group being positive
- G02B15/143105—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 three groups only the first group being positive arranged +-+
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57097859A JPS58215620A (ja) | 1982-06-09 | 1982-06-09 | 小型な可変焦点距離レンズ系 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57097859A JPS58215620A (ja) | 1982-06-09 | 1982-06-09 | 小型な可変焦点距離レンズ系 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58215620A JPS58215620A (ja) | 1983-12-15 |
JPH043526B2 true JPH043526B2 (US07534539-20090519-C00280.png) | 1992-01-23 |
Family
ID=14203471
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57097859A Granted JPS58215620A (ja) | 1982-06-09 | 1982-06-09 | 小型な可変焦点距離レンズ系 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58215620A (US07534539-20090519-C00280.png) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000071610A1 (fr) * | 1999-05-24 | 2000-11-30 | Hosokawa Micron Corporation | Procede de formation d'un granule en resine thermoplastique |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4701033A (en) * | 1983-09-09 | 1987-10-20 | Minolta Camera Kabushiki Kaisha | Variable focal length lens system |
JPS6292909A (ja) * | 1985-10-18 | 1987-04-28 | Olympus Optical Co Ltd | 可変焦点距離レンズ |
JPH01128031A (ja) * | 1987-11-13 | 1989-05-19 | Olympus Optical Co Ltd | 撮像光学系 |
US5327290A (en) * | 1989-10-13 | 1994-07-05 | Minolta Camera Kabushiki Kaisha | Compact size zoom lens system |
US5283693A (en) * | 1990-06-13 | 1994-02-01 | Minolta Camera Kabushiki Kaisha | Compact zoom lens system |
JP6393874B2 (ja) | 2014-02-28 | 2018-09-26 | カンタツ株式会社 | 撮像レンズ |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5188243A (US07534539-20090519-C00280.png) * | 1974-12-20 | 1976-08-02 |
-
1982
- 1982-06-09 JP JP57097859A patent/JPS58215620A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5188243A (US07534539-20090519-C00280.png) * | 1974-12-20 | 1976-08-02 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000071610A1 (fr) * | 1999-05-24 | 2000-11-30 | Hosokawa Micron Corporation | Procede de formation d'un granule en resine thermoplastique |
Also Published As
Publication number | Publication date |
---|---|
JPS58215620A (ja) | 1983-12-15 |
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