JPS4990148A - - Google Patents
Info
- Publication number
- JPS4990148A JPS4990148A JP47130037A JP13003772A JPS4990148A JP S4990148 A JPS4990148 A JP S4990148A JP 47130037 A JP47130037 A JP 47130037A JP 13003772 A JP13003772 A JP 13003772A JP S4990148 A JPS4990148 A JP S4990148A
- 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.)
- 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
- G02B15/145—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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP47130037A JPS4990148A (en) | 1972-12-27 | 1972-12-27 | |
| DE2364055A DE2364055A1 (en) | 1972-12-27 | 1973-12-21 | ZOOM LENS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP47130037A JPS4990148A (en) | 1972-12-27 | 1972-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4990148A true JPS4990148A (en) | 1974-08-28 |
Family
ID=15024563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP47130037A Pending JPS4990148A (en) | 1972-12-27 | 1972-12-27 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS4990148A (en) |
| DE (1) | DE2364055A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54127322A (en) * | 1978-03-27 | 1979-10-03 | Canon Inc | Zoom lens |
| JP2010175956A (en) * | 2009-01-30 | 2010-08-12 | Panasonic Corp | Zoom lens system, interchangeable lens apparatus, and camera system |
| JP2010175955A (en) * | 2009-01-30 | 2010-08-12 | Panasonic Corp | Zoom lens system, interchangeable lens apparatus, and camera system |
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1972
- 1972-12-27 JP JP47130037A patent/JPS4990148A/ja active Pending
-
1973
- 1973-12-21 DE DE2364055A patent/DE2364055A1/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54127322A (en) * | 1978-03-27 | 1979-10-03 | Canon Inc | Zoom lens |
| JPS6140970B2 (en) * | 1978-03-27 | 1986-09-12 | Canon Kk | |
| JP2010175956A (en) * | 2009-01-30 | 2010-08-12 | Panasonic Corp | Zoom lens system, interchangeable lens apparatus, and camera system |
| JP2010175955A (en) * | 2009-01-30 | 2010-08-12 | Panasonic Corp | Zoom lens system, interchangeable lens apparatus, and camera system |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2364055A1 (en) | 1974-07-04 |