ES2185274T3 - Lente de zoom. - Google Patents
Lente de zoom.Info
- Publication number
- ES2185274T3 ES2185274T3 ES99111894T ES99111894T ES2185274T3 ES 2185274 T3 ES2185274 T3 ES 2185274T3 ES 99111894 T ES99111894 T ES 99111894T ES 99111894 T ES99111894 T ES 99111894T ES 2185274 T3 ES2185274 T3 ES 2185274T3
- Authority
- ES
- Spain
- Prior art keywords
- unit
- lenses
- change
- refringence
- lens
- Prior art date
- 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 - Lifetime
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)
Abstract
UNA LENTE DE CAMBIO RAPIDO DE PLANO QUE TIENE, POR ORDEN DESDE EL LADO DEL OBJETIVO, UNA PRIMERA UNIDAD DE LENTES DE REFRINGENCIA POSITIVA FIJADA DURANTE UN CAMBIO DE LA DISTANCIA FOCAL, UNA SEGUNDA UNIDAD DE LENTES DE REFRINGENCIA NEGATIVA PARA UN CAMBIO DE LA DISTANCIA FORMAL, UNA TERCERA UNIDAD DE LENTES DE REFRINGENCIA NEGATIVA PARA CORREGIR LA FLUCTUACION DEL PLANO DE IMAGEN RESULTANTE DEL CAMBIO DE LA DISTANCIA FOCAL, Y UNA CUARTA UNIDAD DE LENTES FIJA DE REFRINGENCIA POSITIVA, Y UNA CAPA DELGADA DE RESINA QUE SATISFACE UNA CONDICION PREDETERMINADA DISPUESTA SOBRE AL MENOS UNA SUPERFICIE DE UNA LENTE DE LA PRIMERA UNIDAD DE LENTES.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19107498A JP3957883B2 (ja) | 1998-06-22 | 1998-06-22 | ズームレンズ |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2185274T3 true ES2185274T3 (es) | 2003-04-16 |
Family
ID=16268441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES99111894T Expired - Lifetime ES2185274T3 (es) | 1998-06-22 | 1999-06-21 | Lente de zoom. |
Country Status (5)
Country | Link |
---|---|
US (1) | US6141157A (es) |
EP (1) | EP0967506B1 (es) |
JP (1) | JP3957883B2 (es) |
DE (1) | DE69903220T2 (es) |
ES (1) | ES2185274T3 (es) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5517525B2 (ja) | 2009-08-17 | 2014-06-11 | キヤノン株式会社 | ズームレンズ及びそれを有する撮像装置 |
JP5693321B2 (ja) | 2011-03-28 | 2015-04-01 | キヤノン株式会社 | ズームレンズ及び撮像装置 |
JP5693322B2 (ja) | 2011-03-28 | 2015-04-01 | キヤノン株式会社 | ズームレンズ及び撮像装置 |
JP6396271B2 (ja) * | 2015-09-07 | 2018-09-26 | 富士フイルム株式会社 | ズームレンズおよび撮像装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5543970A (en) * | 1990-04-11 | 1996-08-06 | Minolta Camera Kabushiki Kaisha | Zoom lens system |
US5568323A (en) * | 1993-11-25 | 1996-10-22 | Asahi Kogaku Kogyo Kabushiki Kaisha | Zoom lens |
JP3708995B2 (ja) * | 1995-09-20 | 2005-10-19 | ペンタックス株式会社 | ズームレンズ |
US5786942A (en) * | 1995-10-03 | 1998-07-28 | Asahi Kogaku Kogyo Kabushiki Kaisha | Zoom lens and aspherical lens |
US6104432A (en) * | 1995-11-10 | 2000-08-15 | Sony Corporation | Compact image pickup lens system for a video camera |
JP3144292B2 (ja) * | 1996-02-06 | 2001-03-12 | ミノルタ株式会社 | ズームレンズ |
US6038081A (en) * | 1997-05-09 | 2000-03-14 | Konica Corporation | Zoom lens having plastic lens in first lens group |
-
1998
- 1998-06-22 JP JP19107498A patent/JP3957883B2/ja not_active Expired - Fee Related
-
1999
- 1999-06-17 US US09/334,824 patent/US6141157A/en not_active Expired - Lifetime
- 1999-06-21 EP EP99111894A patent/EP0967506B1/en not_active Expired - Lifetime
- 1999-06-21 ES ES99111894T patent/ES2185274T3/es not_active Expired - Lifetime
- 1999-06-21 DE DE69903220T patent/DE69903220T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP3957883B2 (ja) | 2007-08-15 |
EP0967506B1 (en) | 2002-10-02 |
EP0967506A2 (en) | 1999-12-29 |
DE69903220D1 (de) | 2002-11-07 |
JP2000009998A (ja) | 2000-01-14 |
EP0967506A3 (en) | 2000-12-06 |
DE69903220T2 (de) | 2003-02-27 |
US6141157A (en) | 2000-10-31 |
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