DE7820639U1 - - Google Patents
Info
- Publication number
- DE7820639U1 DE7820639U1 DE7820639U DE7820639U DE7820639U1 DE 7820639 U1 DE7820639 U1 DE 7820639U1 DE 7820639 U DE7820639 U DE 7820639U DE 7820639 U DE7820639 U DE 7820639U DE 7820639 U1 DE7820639 U1 DE 7820639U1
- Authority
- DE
- Germany
- 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
- G02B15/145—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
- G02B15/145125—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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE7820639U DE7820639U1 (es) | 1978-07-10 | 1978-07-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE7820639U DE7820639U1 (es) | 1978-07-10 | 1978-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE7820639U1 true DE7820639U1 (es) | 1987-07-02 |
Family
ID=6693175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE7820639U Expired DE7820639U1 (es) | 1978-07-10 | 1978-07-10 |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE7820639U1 (es) |
-
1978
- 1978-07-10 DE DE7820639U patent/DE7820639U1/de not_active Expired