FR2241084B1 - - Google Patents
Info
- Publication number
- FR2241084B1 FR2241084B1 FR7409739A FR7409739A FR2241084B1 FR 2241084 B1 FR2241084 B1 FR 2241084B1 FR 7409739 A FR7409739 A FR 7409739A FR 7409739 A FR7409739 A FR 7409739A FR 2241084 B1 FR2241084 B1 FR 2241084B1
- Authority
- FR
- France
- 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
- G02B15/146—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 more than five groups
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP48092113A JPS5040144A (en) | 1973-08-17 | 1973-08-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2241084A1 FR2241084A1 (en) | 1975-03-14 |
| FR2241084B1 true FR2241084B1 (en) | 1976-06-25 |
Family
ID=14045360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7409739A Expired FR2241084B1 (en) | 1973-08-17 | 1974-03-21 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5040144A (en) |
| CA (1) | CA990987A (en) |
| DE (1) | DE2412847C2 (en) |
| FR (1) | FR2241084B1 (en) |
| GB (1) | GB1432072A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5237445A (en) * | 1975-09-20 | 1977-03-23 | Minolta Camera Co Ltd | Lens system rendering variable characteristics of an image plane |
| JPS5832686B2 (en) * | 1976-04-20 | 1983-07-14 | オリンパス光学工業株式会社 | High variable power zoom lens |
| JPS52128153A (en) * | 1976-04-20 | 1977-10-27 | Olympus Optical Co Ltd | Highly variable multiplying zoom lens which instals correction gap of short range image-pickup capacity |
| JPS53149045A (en) * | 1977-05-31 | 1978-12-26 | Fuji Photo Optical Co Ltd | Zoom lens |
| JPS548172U (en) * | 1977-06-20 | 1979-01-19 | ||
| DE2900977C2 (en) * | 1979-01-12 | 1982-09-09 | Fa. Carl Zeiss, 7920 Heidenheim | Photographic lens with continuously variable focal length |
| JPS57135912A (en) * | 1981-02-16 | 1982-08-21 | Asahi Optical Co Ltd | Zoom lens |
| JPS58127909A (en) * | 1982-01-26 | 1983-07-30 | Canon Inc | Zoom lens |
| JPS60208723A (en) * | 1984-04-02 | 1985-10-21 | Canon Inc | Fast zoom lens of high variable power |
| JP3088112B2 (en) * | 1990-10-12 | 2000-09-18 | 旭光学工業株式会社 | Zoom lens |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1103046B (en) * | 1959-11-06 | 1961-03-23 | Schneider Co Optische Werke | Vario lens, preferably Vario attachment system |
| CH482207A (en) * | 1967-01-16 | 1969-11-30 | Rank Organisation Ltd | Variable focal length lens |
-
1973
- 1973-08-17 JP JP48092113A patent/JPS5040144A/ja active Pending
-
1974
- 1974-01-17 GB GB214374A patent/GB1432072A/en not_active Expired
- 1974-01-18 CA CA190,623A patent/CA990987A/en not_active Expired
- 1974-03-18 DE DE2412847A patent/DE2412847C2/en not_active Expired
- 1974-03-21 FR FR7409739A patent/FR2241084B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1432072A (en) | 1976-04-14 |
| JPS5040144A (en) | 1975-04-12 |
| DE2412847C2 (en) | 1983-12-08 |
| CA990987A (en) | 1976-06-15 |
| DE2412847A1 (en) | 1975-02-27 |
| FR2241084A1 (en) | 1975-03-14 |