JP4679835B2 - 高変倍率ズームレンズ - Google Patents
高変倍率ズームレンズ Download PDFInfo
- Publication number
- JP4679835B2 JP4679835B2 JP2004149824A JP2004149824A JP4679835B2 JP 4679835 B2 JP4679835 B2 JP 4679835B2 JP 2004149824 A JP2004149824 A JP 2004149824A JP 2004149824 A JP2004149824 A JP 2004149824A JP 4679835 B2 JP4679835 B2 JP 4679835B2
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- JP
- Japan
- Prior art keywords
- lens
- lens group
- wide
- angle end
- group
- 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
- 239000002131 composite material Substances 0.000 claims description 4
- 230000004075 alteration Effects 0.000 description 15
- 230000003287 optical effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000011514 reflex Effects 0.000 description 5
- 201000009310 astigmatism Diseases 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005336 cracking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
Images
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- Lenses (AREA)
Description
(1)0.40<fW/fbW<0.55
(2)0.43<β3,4W/β3,4T<0.47
(3)40<r5/d5W<100
(4)1.1<f3/f4<2.6
但し、
fW:広角端の焦点距離
fbW:広角端のバックフォーカス
β3,4W:第3,第4レンズ群の広角端の合成倍率
β3,4T:第3,第4レンズ群の望遠端の合成倍率
r5:r5面の曲率半径
d5W:広角端の第1レンズ群と第2レンズ群のレンズ間隔
f3:第3レンズ群の焦点距離
f4:第4レンズ群の焦点距離
である。
x=(y2/r)/[1+{1−A(y2/r2)}1/2]+A4y4+A6y6+A8y8+A10y10
Fno=3.62〜4.98〜5.80
ω=37.7°〜15.7°〜6.5°
[1] 118.40 1.70 1.84666 23.8
[2] 64.85 6.70 1.48749 70.4
[3] −279.53 0.20
[4] 53.65 4.44 1.65160 58.4
[5] 171.00 2.15
[6] 47.78 0.08 1.51840 52.1
[7] 44.73 1.20 1.80420 46.5
[8] 12.30 4.45
[9] −35.63 0.90 1.80420 46.5
[10] 35.72 0.65
[11] 21.18 4.28 1.74077 27.8
[12] −41.55 1.88
[13] −18.64 0.90 1.80420 46.5
[14] 89.44 0.15
[15] 490.90 1.80 1.76182 26.6
[16] −42.33 18.72
[17] 0.00 1.33
[18] 47.93 2.28 1.48749 70.4
[19] −55.87 0.15
[20] 29.60 3.11 1.49700 81.6
[21]−209.28 2.67
[22] −29.67 1.00 1.80610 33.3
[23]−546.68 5.30
[24] 66.36 2.78 1.51680 64.2
[25] −45.82 0.15
[26] 36.22 3.93 1.48749 70.4
[27]−102.74 2.20
[28] 164.09 0.15 1.51840 52.1
[29] 211.62 1.48 1.80610 40.7
[30] 24.15 1.29
[31] 77.57 3.76 1.48749 70.4
[32] −34.12
r6
A = 0.60400000D+01
A4= −0.71549000D−06
A6= −0.45212900D−07
A8= 0.44549000D−09
A10=−0.13824000D−11
r28
A= −0.51287000D+03
A4= −0.97446000D−05
A6= −0.73875000D−07
A8= 0.12418000D−09
A10= 0.11324400D−11
d5 2.15 21.65 42.93
d16 18.72 7.59 1.31
d23 5.30 1.72 0.70
(1) fW/fbW = 0.491
(2)β3,4W/β3,4T= 0.448
(3) r5/d5W =79.527
(4) f3/f4 = 1.745
Fno=3.70〜5.06〜5.82
ω=37.3°〜15.8°〜6.6°
[1] 105.01 1.81 1.84666 23.8
[2] 61.49 6.61 1.48749 70.4
[3] −423.68 0.15
[4] 56.20 4.40 1.65160 58.4
[5] 199.78 2.15
[6] 47.31 0.08 1.51840 52.1
[7] 43.53 1.20 1.80420 46.5
[8] 11.60 4.65
[9] −34.54 0.90 1.80420 46.5
[10] 34.70 0.15
[11] 20.09 4.25 1.74077 27.8
[12] −34.31 1.89
[13] −17.22 0.90 1.80420 46.5
[14]−449.56 0.15
[15] −88.43 1.58 1.76182 26.6
[16] −34.47 19.90
[17] 0.00 1.42
[18] 61.56 2.00 1.48749 70.4
[19] −75.14 0.15
[20] 25.31 2.02 1.49700 81.6
[21] 167.30 2.90
[22] −20.81 1.00 1.80610 33.3
[23] −48.68 3.07
[24] 59.89 2.77 1.51680 64.2
[25] −42.08 0.15
[26] 69.02 3.08 1.48749 70.4
[27] −34.67 0.15
[28] 151.76 0.15 1.51840 52.1
[29] 208.24 1.00 1.80610 40.7
[30] 24.16 1.35
[31] 136.06 3.23 1.48749 70.4
[32] −34.05
r6
A= 0.60417000D+01
A4= −0.86000081D−06
A6= −0.37993123D−07
A8= 0.44003997D−09
A10=−0.13823600D−11
r28
A= −0.49763940D+03
A4= −0.10421063D−04
A6= −0.13332383D−06
A8= 0.24456953D−09
A10= 0.16553089D−11
d5 2.15 21.33 43.09
d16 19.90 8.04 1.21
d23 3.07 1.02 0.70
(1) fW/fbW = 0.422
(2)β3,4W/β3,4T= 0.465
(3) r5/d5W =92.807
(4) f3/f4 = 2.530
G2 第2レンズ群
G3 第3レンズ群
G4 第4レンズ群
Claims (1)
- 物体側より順に第1レンズ群が正、第2レンズ群が負、第3レンズ群が正、第4レンズ群が正の屈折力を持つ4つのレンズ群で構成され、広角端から望遠端への変倍に際し、上記第1レンズ群と第2レンズ群との空気間隔を拡大させ、第2レンズ群と第3レンズ群との間隔を縮小させつつ、第1、第3、第4レンズ群が物体方向に移動し、フォーカシングは第2レンズ群を繰り出して行い、以下の条件式を満足することを特徴とする高変倍率ズームレンズ。
(1)0.40<fW/fbW<0.55
(2)0.43<β3,4W/β3,4T<0.47
(3)40<r5/d5W<100
(4)1.745≦f3/f4<2.6
但し、
fW:広角端の焦点距離
fbW:広角端のバックフォーカス
β3,4W:第3,第4レンズ群の広角端の合成倍率
β3,4T:第3,第4レンズ群の望遠端の合成倍率
r5:r5面の曲率半径
d5W:広角端の第1レンズ群と第2レンズ群のレンズ間隔
f3:第3レンズ群の焦点距離
f4:第4レンズ群の焦点距離
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004149824A JP4679835B2 (ja) | 2004-05-20 | 2004-05-20 | 高変倍率ズームレンズ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004149824A JP4679835B2 (ja) | 2004-05-20 | 2004-05-20 | 高変倍率ズームレンズ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005331697A JP2005331697A (ja) | 2005-12-02 |
JP4679835B2 true JP4679835B2 (ja) | 2011-05-11 |
Family
ID=35486405
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004149824A Expired - Lifetime JP4679835B2 (ja) | 2004-05-20 | 2004-05-20 | 高変倍率ズームレンズ |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4679835B2 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4959236B2 (ja) | 2006-06-21 | 2012-06-20 | 株式会社タムロン | 高変倍率ズームレンズ |
JP5028994B2 (ja) * | 2006-12-18 | 2012-09-19 | 株式会社ニコン | ズームレンズ、撮像装置、ズームレンズの防振方法、ズームレンズの変倍方法 |
JP5042643B2 (ja) * | 2007-01-22 | 2012-10-03 | パナソニック株式会社 | ズームレンズ系、撮像装置及びカメラ |
US8238038B2 (en) | 2008-08-08 | 2012-08-07 | Tamron Co., Ltd. | High variable power zoom lens |
JP5498259B2 (ja) | 2010-05-24 | 2014-05-21 | 株式会社タムロン | 高変倍率ズームレンズ |
JP5498260B2 (ja) | 2010-05-24 | 2014-05-21 | 株式会社タムロン | ズームレンズユニット |
JP5492658B2 (ja) | 2010-05-24 | 2014-05-14 | 株式会社タムロン | 高変倍率ズームレンズ |
JP5751014B2 (ja) | 2010-05-28 | 2015-07-22 | リコーイメージング株式会社 | 天体自動追尾撮影方法及び天体自動追尾撮影装置 |
JP2012014005A (ja) | 2010-07-01 | 2012-01-19 | Hoya Corp | 高変倍ズームレンズ系 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002098895A (ja) * | 2000-09-25 | 2002-04-05 | Olympus Optical Co Ltd | 像ぶれ補正機能を有するズームレンズ |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2711717B2 (ja) * | 1989-04-28 | 1998-02-10 | コニカ株式会社 | 有限距離用高変倍ズームレンズ |
JP3304518B2 (ja) * | 1993-07-05 | 2002-07-22 | オリンパス光学工業株式会社 | 変倍レンズ |
-
2004
- 2004-05-20 JP JP2004149824A patent/JP4679835B2/ja not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002098895A (ja) * | 2000-09-25 | 2002-04-05 | Olympus Optical Co Ltd | 像ぶれ補正機能を有するズームレンズ |
Also Published As
Publication number | Publication date |
---|---|
JP2005331697A (ja) | 2005-12-02 |
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