FR2319913B3 - - Google Patents
Info
- Publication number
- FR2319913B3 FR2319913B3 FR7622740A FR7622740A FR2319913B3 FR 2319913 B3 FR2319913 B3 FR 2319913B3 FR 7622740 A FR7622740 A FR 7622740A FR 7622740 A FR7622740 A FR 7622740A FR 2319913 B3 FR2319913 B3 FR 2319913B3
- 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
- G02B15/16—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 with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
- G02B15/163—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 with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group
- G02B15/167—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 with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses
- G02B15/17—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 with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses arranged +--
-
- 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 +--++
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2533825A DE2533825C3 (de) | 1975-07-29 | 1975-07-29 | Entfernungseinstellung bei Objektiven mit veränderbarer Brennweite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2319913A1 FR2319913A1 (fr) | 1977-02-25 |
| FR2319913B3 true FR2319913B3 (fr) | 1979-07-06 |
Family
ID=5952704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7622740A Granted FR2319913A1 (fr) | 1975-07-29 | 1976-07-26 | Dispositif de mise au point d'objectifs a focale variable |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4054372A (fr) |
| JP (1) | JPS5217015A (fr) |
| AT (1) | AT356412B (fr) |
| DE (1) | DE2533825C3 (fr) |
| FR (1) | FR2319913A1 (fr) |
| GB (1) | GB1497384A (fr) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52145051A (en) * | 1976-05-27 | 1977-12-02 | Minolta Camera Co Ltd | Zoom lens system permitting extra-close-up photographing |
| GB1559514A (en) * | 1976-10-02 | 1980-01-23 | Pilkington Perkin Elmer Ltd | Infra-red zoom lenses |
| DE2723540A1 (de) * | 1977-05-25 | 1978-12-07 | Schneider Co Optische Werke | Makroeinstell-einrichtung in objektiven mit veraenderbarer brennweite |
| DE3369738D1 (en) * | 1982-05-08 | 1987-03-12 | Angenieux P Ets | An improved zoom lens for cameras |
| JPS5933012U (ja) * | 1982-08-21 | 1984-02-29 | 株式会社ニコン | ズ−ムレンズ鏡筒 |
| USRE35409E (en) * | 1982-09-24 | 1996-12-24 | Moore; Sidney D. | Electrically addressable opto-electronic indicator for making dynamic evaluations of microscopic or larger subjects |
| JPS61245121A (ja) * | 1985-04-23 | 1986-10-31 | Victor Co Of Japan Ltd | ズ−ムレンズ装置 |
| JPH0654366B2 (ja) * | 1985-05-20 | 1994-07-20 | ウエスト電気株式会社 | ズ−ミング方法およびズ−ミング装置 |
| FR2586828B1 (fr) * | 1985-08-29 | 1988-08-12 | Angenieux P Ets | Objectif a infra-rouge, a distance focale variable. |
| US5136431A (en) * | 1988-12-06 | 1992-08-04 | Canon Kabushiki Kaisha | Zoom lens of the internal focus type |
| US4991944A (en) * | 1988-12-27 | 1991-02-12 | Matsushita Electric Industrial Co., Ltd. | Zoom lens driving apparatus |
| JP2773310B2 (ja) * | 1989-10-27 | 1998-07-09 | キヤノン株式会社 | ピント調整手段を有したズームレンズ |
| JP2782636B2 (ja) * | 1990-02-26 | 1998-08-06 | 富士写真フイルム株式会社 | ビデオカメラ |
| JP3074026B2 (ja) * | 1991-03-04 | 2000-08-07 | キヤノン株式会社 | 超広角型のズームレンズ |
| JPH0713075A (ja) * | 1993-06-24 | 1995-01-17 | Nikon Corp | ズームレンズ |
| JPH08234105A (ja) * | 1995-02-24 | 1996-09-13 | Olympus Optical Co Ltd | 望遠ズームレンズ |
| JPH10142471A (ja) * | 1996-11-11 | 1998-05-29 | Fuji Photo Optical Co Ltd | ズームレンズ装置 |
| JP3564014B2 (ja) * | 1999-09-28 | 2004-09-08 | キヤノン株式会社 | 防振機能を有したズームレンズ及びそれを有するテレビカメラ |
| US10545314B1 (en) | 2014-03-16 | 2020-01-28 | Navitar Industries, Llc | Optical assembly for a compact wide field of view digital camera with low lateral chromatic aberration |
| US10386604B1 (en) | 2014-03-16 | 2019-08-20 | Navitar Industries, Llc | Compact wide field of view digital camera with stray light impact suppression |
| US10139595B1 (en) | 2014-03-16 | 2018-11-27 | Navitar Industries, Llc | Optical assembly for a compact wide field of view digital camera with low first lens diameter to image diagonal ratio |
| US9316808B1 (en) | 2014-03-16 | 2016-04-19 | Hyperion Development, LLC | Optical assembly for a wide field of view point action camera with a low sag aspheric lens element |
| US9726859B1 (en) | 2014-03-16 | 2017-08-08 | Navitar Industries, Llc | Optical assembly for a wide field of view camera with low TV distortion |
| US9316820B1 (en) | 2014-03-16 | 2016-04-19 | Hyperion Development, LLC | Optical assembly for a wide field of view point action camera with low astigmatism |
| US9995910B1 (en) | 2014-03-16 | 2018-06-12 | Navitar Industries, Llc | Optical assembly for a compact wide field of view digital camera with high MTF |
| US9091843B1 (en) | 2014-03-16 | 2015-07-28 | Hyperion Development, LLC | Optical assembly for a wide field of view point action camera with low track length to focal length ratio |
| US9494772B1 (en) | 2014-03-16 | 2016-11-15 | Hyperion Development, LLC | Optical assembly for a wide field of view point action camera with low field curvature |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1053396A (fr) * | 1964-05-13 | |||
| US3961845A (en) * | 1973-08-17 | 1976-06-08 | Fuji Photo Optical Co., Ltd. | Zoom lens system |
| US3975089A (en) * | 1974-04-19 | 1976-08-17 | Ponder & Best, Inc. | Zoom lens |
-
1975
- 1975-07-29 DE DE2533825A patent/DE2533825C3/de not_active Expired
-
1976
- 1976-05-18 GB GB20438/76A patent/GB1497384A/en not_active Expired
- 1976-07-26 FR FR7622740A patent/FR2319913A1/fr active Granted
- 1976-07-28 US US05/709,324 patent/US4054372A/en not_active Expired - Lifetime
- 1976-07-28 JP JP51090142A patent/JPS5217015A/ja active Pending
- 1976-07-29 AT AT561676A patent/AT356412B/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2533825A1 (de) | 1977-02-10 |
| DE2533825C3 (de) | 1979-02-01 |
| FR2319913A1 (fr) | 1977-02-25 |
| JPS5217015A (en) | 1977-02-08 |
| AT356412B (de) | 1980-04-25 |
| GB1497384A (en) | 1978-01-12 |
| ATA561676A (de) | 1979-09-15 |
| US4054372A (en) | 1977-10-18 |
| DE2533825B2 (de) | 1978-05-24 |