JP2000019400A5 - - Google Patents
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- Publication number
- JP2000019400A5 JP2000019400A5 JP1998198053A JP19805398A JP2000019400A5 JP 2000019400 A5 JP2000019400 A5 JP 2000019400A5 JP 1998198053 A JP1998198053 A JP 1998198053A JP 19805398 A JP19805398 A JP 19805398A JP 2000019400 A5 JP2000019400 A5 JP 2000019400A5
- Authority
- JP
- Japan
- Prior art keywords
- group
- zoom lens
- lens according
- refractive power
- zooming
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims 3
- 210000001747 pupil Anatomy 0.000 claims 1
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19805398A JP4208293B2 (ja) | 1998-06-29 | 1998-06-29 | ズームレンズ |
| US09/123,442 US6081389A (en) | 1997-07-31 | 1998-07-28 | Zoom lens of retrofocus type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19805398A JP4208293B2 (ja) | 1998-06-29 | 1998-06-29 | ズームレンズ |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2000019400A JP2000019400A (ja) | 2000-01-21 |
| JP2000019400A5 true JP2000019400A5 (enExample) | 2005-10-06 |
| JP4208293B2 JP4208293B2 (ja) | 2009-01-14 |
Family
ID=16384755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19805398A Expired - Fee Related JP4208293B2 (ja) | 1997-07-31 | 1998-06-29 | ズームレンズ |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4208293B2 (enExample) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6560019B2 (en) | 1998-02-05 | 2003-05-06 | Canon Kabushiki Kaisha | Diffractive optical element and optical system having the same |
| JP3503631B2 (ja) | 2001-04-27 | 2004-03-08 | セイコーエプソン株式会社 | 投映用ズームレンズ及びこれを備えたプロジェクター |
| JP2002341242A (ja) * | 2001-05-21 | 2002-11-27 | Matsushita Electric Ind Co Ltd | 投写レンズとそれを用いたプロジェクター |
| US6989939B2 (en) | 2003-08-11 | 2006-01-24 | Canon Kabushiki Kaisha | Variable-power optical system, projection optical system, and image projection apparatus using the systems |
| JP6234784B2 (ja) * | 2013-11-13 | 2017-11-22 | 富士フイルム株式会社 | ズームレンズおよび撮像装置 |
| CN112882143A (zh) * | 2021-01-26 | 2021-06-01 | 维沃移动通信有限公司 | 微棱镜、摄像模组和电子设备 |
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1998
- 1998-06-29 JP JP19805398A patent/JP4208293B2/ja not_active Expired - Fee Related