JPS5712125B2 - - Google Patents
Info
- Publication number
- JPS5712125B2 JPS5712125B2 JP6242776A JP6242776A JPS5712125B2 JP S5712125 B2 JPS5712125 B2 JP S5712125B2 JP 6242776 A JP6242776 A JP 6242776A JP 6242776 A JP6242776 A JP 6242776A JP S5712125 B2 JPS5712125 B2 JP S5712125B2
- Authority
- JP
- Japan
- 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
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
- G02B15/16—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
- G02B15/163—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 first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group
- G02B15/167—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 first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses
- G02B15/173—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 first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses arranged +-+
-
- 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
- G02B15/145—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 five groups only
- G02B15/1451—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 five groups only the first group being positive
- G02B15/145121—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 five groups only the first group being positive 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 |
|---|---|---|---|
| JP6242776A JPS52146250A (en) | 1976-05-31 | 1976-05-31 | High magnification high performance zoom lens |
| US05/801,353 US4189213A (en) | 1976-05-31 | 1977-05-27 | Zoom lens system |
| DE2724507A DE2724507C3 (de) | 1976-05-31 | 1977-05-31 | Varioobjektiv |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6242776A JPS52146250A (en) | 1976-05-31 | 1976-05-31 | High magnification high performance zoom lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS52146250A JPS52146250A (en) | 1977-12-05 |
| JPS5712125B2 true JPS5712125B2 (enExample) | 1982-03-09 |
Family
ID=13199842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6242776A Granted JPS52146250A (en) | 1976-05-31 | 1976-05-31 | High magnification high performance zoom lens |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4189213A (enExample) |
| JP (1) | JPS52146250A (enExample) |
| DE (1) | DE2724507C3 (enExample) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5642208A (en) * | 1979-09-17 | 1981-04-20 | Canon Inc | Compact zoom lens |
| JPS56107211A (en) * | 1980-01-31 | 1981-08-26 | Canon Inc | Zoom lens |
| JPS5735822A (en) * | 1980-08-14 | 1982-02-26 | Canon Inc | Zoom lens |
| US6101045A (en) * | 1994-02-14 | 2000-08-08 | Minolta Co., Ltd. | Zoom lens system |
| JP3429554B2 (ja) * | 1994-05-17 | 2003-07-22 | オリンパス光学工業株式会社 | 変倍レンズ |
| US5978150A (en) * | 1995-06-01 | 1999-11-02 | Nikon Corporation | Zoom lens |
| JP3453007B2 (ja) * | 1995-06-19 | 2003-10-06 | 富士写真光機株式会社 | ズームレンズ |
| JPH0926544A (ja) * | 1995-07-10 | 1997-01-28 | Nikon Corp | 顕微鏡用中間鏡筒 |
| US6985303B2 (en) * | 2003-05-08 | 2006-01-10 | Fujinon Corporation | Rear focus zoom lens |
| RU2299455C2 (ru) * | 2005-08-15 | 2007-05-20 | Федеральное государственное унитарное предприятие "Научно-производственное объединение "Государственный институт прикладной оптики" (ФГУП "НПО "ГИПО") | Инфракрасный объектив с плавно изменяющимся фокусным расстоянием |
| RU2298213C1 (ru) * | 2005-10-19 | 2007-04-27 | Государственное унитарное предприятие "Конструкторское бюро приборостроения" | Объектив с переменным фокусным расстоянием |
| RU2299454C1 (ru) * | 2005-10-31 | 2007-05-20 | Федеральное государственное унитарное предприятие "Научно-производственное объединение "Государственный институт прикладной оптики" (ФГУП "НПО "ГИПО") | Инфракрасный объектив с плавно изменяющимся фокусным расстоянием |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3972591A (en) * | 1972-02-01 | 1976-08-03 | Canon Kabushiki Kaisha | Greatly variable magnification zoom lens system of large aperture ratio |
| US3970367A (en) * | 1972-07-20 | 1976-07-20 | Canon Kabushiki Kaisha | Zoom lens system |
-
1976
- 1976-05-31 JP JP6242776A patent/JPS52146250A/ja active Granted
-
1977
- 1977-05-27 US US05/801,353 patent/US4189213A/en not_active Expired - Lifetime
- 1977-05-31 DE DE2724507A patent/DE2724507C3/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS52146250A (en) | 1977-12-05 |
| US4189213A (en) | 1980-02-19 |
| DE2724507B2 (de) | 1980-03-06 |
| DE2724507C3 (de) | 1980-11-06 |
| DE2724507A1 (de) | 1977-12-29 |