FR2321135B1 - - Google Patents
Info
- Publication number
- FR2321135B1 FR2321135B1 FR7624282A FR7624282A FR2321135B1 FR 2321135 B1 FR2321135 B1 FR 2321135B1 FR 7624282 A FR7624282 A FR 7624282A FR 7624282 A FR7624282 A FR 7624282A FR 2321135 B1 FR2321135 B1 FR 2321135B1
- 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
- G02B15/144—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 |
|---|---|---|---|
| AT623075A AT336919B (de) | 1975-08-11 | 1975-08-11 | Pankratisches objektiv |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2321135A1 FR2321135A1 (fr) | 1977-03-11 |
| FR2321135B1 true FR2321135B1 (US20100223739A1-20100909-C00005.png) | 1980-07-18 |
Family
ID=3584191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7624282A Granted FR2321135A1 (fr) | 1975-08-11 | 1976-08-09 | Objectif pancratique |
Country Status (5)
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5423556A (en) * | 1977-07-22 | 1979-02-22 | Canon Inc | Zoom lens |
| JPS60133412A (ja) * | 1983-12-22 | 1985-07-16 | Matsushita Electric Ind Co Ltd | ズ−ムレンズ |
| JPS615223A (ja) * | 1984-06-19 | 1986-01-11 | Matsushita Electric Ind Co Ltd | 画面抱括範囲の広いズ−ムレンズ |
| US4832471A (en) * | 1987-08-26 | 1989-05-23 | Canon Kabushiki Kaisha | Zoom lens |
| US11125983B2 (en) * | 2018-08-21 | 2021-09-21 | Fujifilm Corporation | Zoom lens and imaging apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1250650B (US20100223739A1-20100909-C00005.png) * | 1961-07-26 | |||
| DE2164937A1 (de) * | 1971-12-28 | 1973-07-05 | Schneider Co Optische Werke | Lichtstarkes objektiv mit veraenderbarer brennweite |
| AT317576B (de) * | 1972-01-13 | 1974-09-10 | Eumig | Pankratisches Objektiv |
-
1975
- 1975-08-11 AT AT623075A patent/AT336919B/de not_active IP Right Cessation
-
1976
- 1976-08-09 FR FR7624282A patent/FR2321135A1/fr active Granted
- 1976-08-10 US US05/713,224 patent/US4066340A/en not_active Expired - Lifetime
- 1976-08-11 DE DE19762635988 patent/DE2635988A1/de not_active Withdrawn
- 1976-08-11 JP JP51095900A patent/JPS5260149A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2321135A1 (fr) | 1977-03-11 |
| ATA623075A (de) | 1976-09-15 |
| JPS5260149A (en) | 1977-05-18 |
| AT336919B (de) | 1977-06-10 |
| US4066340A (en) | 1978-01-03 |
| DE2635988A1 (de) | 1977-02-24 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |