CH392919A - Vario-Vorsatz für photographische oder kinematographische Objektive - Google Patents
Vario-Vorsatz für photographische oder kinematographische ObjektiveInfo
- Publication number
- CH392919A CH392919A CH723761A CH723761A CH392919A CH 392919 A CH392919 A CH 392919A CH 723761 A CH723761 A CH 723761A CH 723761 A CH723761 A CH 723761A CH 392919 A CH392919 A CH 392919A
- Authority
- CH
- Switzerland
- Prior art keywords
- vario
- photographic
- attachment
- cinematographic
- lenses
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
-
- 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
- G02B15/144—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 four groups only
- G02B15/1441—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 four groups only the first group being positive
- G02B15/144109—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 four groups only the first group being positive arranged +--+
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DESCH28339A DE1158280B (de) | 1960-08-17 | 1960-08-17 | Vario-Vorsatz fuer photographische oder kinematographische Objektive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH392919A true CH392919A (de) | 1965-05-31 |
Family
ID=7431077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH723761A CH392919A (de) | 1960-08-17 | 1961-06-20 | Vario-Vorsatz für photographische oder kinematographische Objektive |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3267803A (de) |
| CH (1) | CH392919A (de) |
| DE (1) | DE1158280B (de) |
| GB (1) | GB935010A (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1157807B (de) * | 1962-01-20 | 1963-11-21 | Schneider Co Optische Werke | Tele-Varioobjektiv |
| US4756609A (en) * | 1987-07-13 | 1988-07-12 | Eastman Kodak Company | Four component compact zoom lens |
| US6046861A (en) * | 1997-10-08 | 2000-04-04 | Vari-Lite. Inc. | Zoom lens system having imaging and non-imaging ranges |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE18265C (de) * | F. A. münzner in Obergruna b. Siebenlehn i. s | Fangvorrichtung für Tonnenförderung | ||
| GB713024A (en) * | 1951-10-05 | 1954-08-04 | Watson W & Sons Ltd | Improvements in or relating to variable magnification optical systems |
| US3027805A (en) * | 1958-10-22 | 1962-04-03 | Canon Camera Co | Zoom lens system |
-
1960
- 1960-08-17 DE DESCH28339A patent/DE1158280B/de active Pending
-
1961
- 1961-06-20 CH CH723761A patent/CH392919A/de unknown
- 1961-06-26 GB GB22979/61A patent/GB935010A/en not_active Expired
-
1965
- 1965-01-21 US US427064A patent/US3267803A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US3267803A (en) | 1966-08-23 |
| GB935010A (en) | 1963-08-21 |
| DE1158280B (de) | 1963-11-28 |
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