JP4889333B2 - ズームレンズシステム - Google Patents
ズームレンズシステム Download PDFInfo
- Publication number
- JP4889333B2 JP4889333B2 JP2006081271A JP2006081271A JP4889333B2 JP 4889333 B2 JP4889333 B2 JP 4889333B2 JP 2006081271 A JP2006081271 A JP 2006081271A JP 2006081271 A JP2006081271 A JP 2006081271A JP 4889333 B2 JP4889333 B2 JP 4889333B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- lens group
- positive
- object side
- zoom
- 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 - Fee Related
Links
Images
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
- G02B15/173—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
- G02B15/145129—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 +-+++
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Lenses (AREA)
Description
2 < |f2/fw| < 4 ・・・(1)
面s8
K=−5.0000
A= 1.4915×10−4、 B= 1.2312×10−6
C=−6.9372×10−8、 D= 5.7671×10−10
ただし、非球面は、Xを光軸方向の座標、Yを光軸と垂直方向の座標、光の進行方向を正とし、上記の係数K、A、B、C、Dを用いて次式で表される。以下においても同様である。
X=Y2/R/[1+{1−(1+K)Y2/R2}1/2]
+AY4+BY6+CY8+DY10
面s17
K=0.0000
A=−4.6610×10−4、 B=−8.9834×10−6
C= 1.2559×10−7、 D=−1.2067×10−8
広角端 中間 望遠端
合成焦点距離f 2.0 8.0 14.0
FNo 2.00 2.36 2.47
d5 0.5000 16.8739 23.0719
d12 28.5500 5.3194 0.5000
d18 4.7779 5.6762 0.5000
d23 2.0000 7.9584 11.7560
画角: 90.0度〜16.2度
バックフォーカス: 0.5mm
第2のレンズ群G2の合成焦点距離f2: −5.845mm
条件(1)(|f2/fw|): 2.923
10 ズームレンズシステム
Claims (6)
- 物体側から順に、正の屈折力を備えた第1のレンズ群と、負の屈折力を備えた第2のレンズ群と、正の屈折力を備えた第3のレンズ群と、正の屈折力を備えた第4のレンズ群と、正の屈折力を備えた第5のレンズ群とから構成され、
前記第3のレンズ群は、物体側から順に、正レンズおよび負レンズからなる接合レンズと、正レンズとにより構成され、
前記第4のレンズ群は、物体側から順に、正レンズと、負レンズおよび正レンズからなる接合レンズとにより構成され、
広角から望遠に変倍する際に、前記第1のレンズ群および前記第5のレンズ群は動かず、前記第5のレンズ群により焦点調整を行う、ズームレンズシステム。 - 請求項1において、広角から望遠に変倍する際に、前記第2のレンズ群は物体側から像面側へ動き、前記第3のレンズ群は像面側から物体側へ動き、前記第4のレンズ群は像面側から物体側へ動く、ズームレンズシステム。
- 請求項1または2において、前記第2のレンズ群は、物体側に凸で負のメニスカスレンズを含み、そのメニスカスレンズの物体側の面が、光軸から周辺に向かうに従い正のパワーが強まる形状の非球面である、ズームレンズシステム。
- 請求項1ないし3のいずれかにおいて、前記第3のレンズ群の前記正レンズは、物体側に凹の正のメニスカスレンズであり、その物体側の面は、光軸から周辺に向かうに従い負のパワーが強まる非球面である、ズームレンズシステム。
- 請求項1ないし4のいずれかにおいて、前記第2のレンズ群の合成焦点距離f2と、当該ズームレンズシステムの広角端における合成焦点距離fwとが以下の条件を満たす、ズームレンズシステム。
2 < |f2/fw| < 4 - 請求項1ないし5のいずれかに記載のズームレンズシステムと、そのズームレンズシステムの像面側に配置された撮像デバイスとを有するカメラ。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006081271A JP4889333B2 (ja) | 2006-03-23 | 2006-03-23 | ズームレンズシステム |
US11/689,792 US7518805B2 (en) | 2006-03-23 | 2007-03-22 | Zoom lens system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006081271A JP4889333B2 (ja) | 2006-03-23 | 2006-03-23 | ズームレンズシステム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007256656A JP2007256656A (ja) | 2007-10-04 |
JP4889333B2 true JP4889333B2 (ja) | 2012-03-07 |
Family
ID=38533097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006081271A Expired - Fee Related JP4889333B2 (ja) | 2006-03-23 | 2006-03-23 | ズームレンズシステム |
Country Status (2)
Country | Link |
---|---|
US (1) | US7518805B2 (ja) |
JP (1) | JP4889333B2 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4822074B2 (ja) * | 2007-10-01 | 2011-11-24 | 株式会社ニコン | ズームレンズ及びこのズームレンズを備えた光学機器 |
JP2011013536A (ja) * | 2009-07-03 | 2011-01-20 | Tamron Co Ltd | ズームレンズ |
JP5661502B2 (ja) * | 2011-02-22 | 2015-01-28 | 日東光学株式会社 | ズームレンズシステム |
WO2012160786A1 (ja) | 2011-05-23 | 2012-11-29 | 富士フイルム株式会社 | 投写用変倍光学系および投写型表示装置 |
JP5961074B2 (ja) | 2012-08-17 | 2016-08-02 | 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 |
JP6288916B2 (ja) * | 2013-01-23 | 2018-03-07 | 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 |
JP6376809B2 (ja) * | 2014-04-03 | 2018-08-22 | キヤノン株式会社 | 三次元形状計測システムに用いられる投影装置および撮像装置 |
JP7187276B2 (ja) * | 2018-11-15 | 2022-12-12 | 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 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2543780B2 (ja) | 1990-07-23 | 1996-10-16 | コニカ株式会社 | ズ―ムレンズ |
JPH0519167A (ja) * | 1991-07-09 | 1993-01-29 | Konica Corp | コンパクトなズームレンズ |
JP3109342B2 (ja) * | 1993-09-17 | 2000-11-13 | キヤノン株式会社 | リヤーフォーカス式のズームレンズ |
JP3031598B2 (ja) * | 1994-03-09 | 2000-04-10 | 富士写真光機株式会社 | ズームレンズ系 |
JP4395255B2 (ja) * | 2000-11-20 | 2010-01-06 | 株式会社リコー | ズームレンズおよびカメラ装置 |
JP4234957B2 (ja) * | 2001-10-30 | 2009-03-04 | 株式会社リコー | ズームレンズ、撮像装置および携帯情報端末システム |
US6721105B2 (en) * | 2001-12-12 | 2004-04-13 | Nikon Corporation | Zoom lens system |
JP2004117827A (ja) * | 2002-09-26 | 2004-04-15 | Minolta Co Ltd | 撮像装置 |
JP4865218B2 (ja) * | 2004-12-28 | 2012-02-01 | 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 |
TWI273341B (en) * | 2005-04-26 | 2007-02-11 | Asia Optical Co Inc | Zoom lens |
-
2006
- 2006-03-23 JP JP2006081271A patent/JP4889333B2/ja not_active Expired - Fee Related
-
2007
- 2007-03-22 US US11/689,792 patent/US7518805B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US7518805B2 (en) | 2009-04-14 |
US20070223108A1 (en) | 2007-09-27 |
JP2007256656A (ja) | 2007-10-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4960054B2 (ja) | ズームレンズシステム | |
JP5044356B2 (ja) | ズームレンズシステム | |
JP5292756B2 (ja) | ズームレンズと、これを有する光学装置 | |
JP4903418B2 (ja) | ズームレンズ | |
JP5732176B2 (ja) | ズームレンズおよび撮像装置 | |
JP2017204011A (ja) | ズームレンズシステムおよび撮像装置 | |
JP4222165B2 (ja) | ズームレンズおよび撮像装置 | |
JP5893959B2 (ja) | ズームレンズ | |
JP4889333B2 (ja) | ズームレンズシステム | |
JP2007212846A (ja) | ズームレンズ及び撮像装置 | |
JP5698869B2 (ja) | ズームレンズおよび撮像装置 | |
JP2013178410A (ja) | ズームレンズ | |
JP2015082068A (ja) | ズームレンズ | |
JP5661502B2 (ja) | ズームレンズシステム | |
JP2003043359A (ja) | ズームレンズ | |
JP5496565B2 (ja) | ズームレンズ | |
JP2005134746A (ja) | ズームレンズ及びそれを有する撮像装置 | |
EP1584962A1 (en) | Zoom lens and image pickup apparatus | |
JP5664469B2 (ja) | 大口径変倍光学系および撮像装置 | |
JP4585796B2 (ja) | ズームレンズ及びそれを有する撮像装置 | |
JP2007093977A (ja) | ズームレンズ | |
JP6649286B2 (ja) | ズームレンズおよび撮像装置 | |
JP2005208258A (ja) | ズームレンズ | |
JP2005208464A (ja) | ズームレンズ | |
JP2004333572A (ja) | 可変焦点距離レンズ系 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20090218 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20110830 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20110831 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20111031 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20111207 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20111213 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 4889333 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20141222 Year of fee payment: 3 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |