BE644820A - - Google Patents
Info
- Publication number
- BE644820A BE644820A BE644820DA BE644820A BE 644820 A BE644820 A BE 644820A BE 644820D A BE644820D A BE 644820DA BE 644820 A BE644820 A BE 644820A
- Authority
- BE
- Belgium
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
- G02B15/143—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)
- Lens Barrels (AREA)
- Lenses (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT185963A AT240620B (de) | 1963-03-08 | 1963-03-08 | Anordnung eines pankratischen Objektivs in einer Kamera |
| AT382063A AT241153B (de) | 1963-05-10 | 1963-05-10 | Pankratisches Objektiv |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE644820A true BE644820A (es) | 1964-07-01 |
Family
ID=25597002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE644820D BE644820A (es) | 1963-03-08 | 1964-03-06 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE644820A (es) |
| CH (1) | CH433801A (es) |
| GB (1) | GB1054994A (es) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT364984B (de) * | 1977-09-16 | 1981-11-25 | Eumig | Optisches system |
| CZ2012280A3 (cs) * | 2012-04-24 | 2013-05-09 | Ceské vysoké ucení technické v Praze - fakulta stavební | Objektiv s promennou ohniskovou vzdáleností |
| CZ304175B6 (cs) * | 2012-12-12 | 2013-12-04 | Ceské vysoké ucení technické v Praze - fakulta stavební | Objektiv s promennou ohniskovou vzdáleností |
-
0
- GB GB1054994D patent/GB1054994A/en active Active
-
1964
- 1964-02-21 CH CH212664A patent/CH433801A/de unknown
- 1964-03-06 BE BE644820D patent/BE644820A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH433801A (de) | 1967-04-15 |
| GB1054994A (es) |