JP2006221092A5 - - Google Patents
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- JP2006221092A5 JP2006221092A5 JP2005036624A JP2005036624A JP2006221092A5 JP 2006221092 A5 JP2006221092 A5 JP 2006221092A5 JP 2005036624 A JP2005036624 A JP 2005036624A JP 2005036624 A JP2005036624 A JP 2005036624A JP 2006221092 A5 JP2006221092 A5 JP 2006221092A5
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- Prior art keywords
- lens
- lens group
- thirty
- group
- positive
- Prior art date
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Claims (11)
−2.00<f32/f3<−0.80
但し、
f3は前記第3レンズ群の焦点距離、
f32は前記第32レンズ群の焦点距離 In order from the object side, a first lens unit having a positive refractive power, a second lens group having a negative refractive power, and a third lens group having a positive refractive power, and in zooming from the wide-angle end state to the telephoto end state, The distance between the first lens group and the second lens group increases, the distance between the second lens group and the third lens group decreases, and the third lens group has a positive refractive power in order from the object side. It consists of a thirty-first lens group, a thirty-second lens group having a negative refractive power, and a thirty-third lens group. By moving only the thirty-second lens group in a direction orthogonal to the optical axis, the zoom lens system with a vibration reduction function that satisfies the image blur has a Oko correction, the following conditions.
−2.00 <f32 / f3 <−0.80
However,
f3 is the focal length of the third lens group,
f32 is the focal length of the thirty-second lens group.
1.40<f1/fw<2.00
−0.53<f2/fw<−0.32
0.35<f3/fw<0.65
−0.20<f3/f33<0.50
但し、
fwは広角端状態におけるズームレンズの焦点距離、
f1は前記第1レンズ群の焦点距離、
f2は前記第2レンズ群の焦点距離、
f3は前記第3レンズ群の焦点距離、
f33は前記第33レンズ群の焦点距離 The zoom lens having an image stabilization function according to claim 1, wherein the following condition is satisfied.
1.40 <f1 / fw <2.00
−0.53 <f2 / fw <−0.32.
0.35 <f3 / fw <0.65
− 0.20 <f3 / f33 <0.50
However,
fw is the focal length of the zoom lens in the wide-angle end state,
f1 is the focal length of the first lens group,
f2 is the focal length of the second lens group,
f3 is the focal length of the third lens group ,
f33 is the focal length of the 33rd lens group
0.20<n31N−n31P
30.0<ν31P−ν31N
但し、
n31Nは前記第1接合レンズ中の前記負レンズの屈折率、
n31Pは前記第1接合レンズ中の前記両凸形状の正レンズの屈折率、
ν31Nは前記第1接合レンズ中の前記負レンズのd線(波長587.6nm)に対するアッベ数、
ν31Pは前記第1接合レンズ中の前記両凸形状の正レンズのd線(波長587.6nm)に対するアッベ数 The thirty-first lens group includes, in order from the object side, a first cemented lens including a biconvex positive lens, a biconvex positive lens and a negative lens having a concave surface facing the object side, and a convex surface facing the object side. and a positive meniscus lens, a second cemented lens, a zoom lens having a vibration reduction function according to claim 1, any one of 4 which satisfies the following conditions.
0.20 <n31N-n31P
30.0 <ν31P-ν31N
However,
n31N is the refractive index of the negative lens in the first cemented lens,
n31P is the refractive index of the biconvex positive lens in the first cemented lens,
ν31N is the Abbe number with respect to the d-line (wavelength 587.6 nm) of the negative lens in the first cemented lens,
ν31P is the Abbe number with respect to the d-line (wavelength: 587.6 nm) of the biconvex positive lens in the first cemented lens
10.0<ν32N−ν32P
但し、
ν32Nは前記第32レンズ群中の前記両凹形状の負レンズのd線(波長587.6nm)に対するアッベ数、
ν32Pは前記第32レンズ群中の前記正レンズのd線(波長587.6nm)に対するアッベ数 The 32nd lens unit includes, in order from the object side, a positive lens having a convex surface directed toward the image side has a biconcave negative lens, of claims 1 to 5, characterized in that the following condition is satisfied A zoom lens having an image stabilization function according to any one of the preceding claims.
10.0 <ν32N−ν32P
However,
ν32N is the Abbe number for the d-line (wavelength 587.6 nm) of the biconcave negative lens in the thirty-second lens group,
ν32P is the Abbe number for the d-line (wavelength 587.6 nm) of the positive lens in the thirty-second lens group.
−2.00<(r32R+r32F)/(r32R−r32F)<−0.70
但し、
r32Fは前記第32レンズ群の前記正レンズの物体側面の曲率半径、
r32Rは前記第32レンズ群の前記両凹形状の負レンズの像側面の曲率半径 The 32nd lens unit includes, in order from the object side and a positive lens and a double concave negative lens of the cemented lens having a convex surface directed toward the image side, claim 1, characterized by satisfying the following condition 6 A zoom lens having the image stabilization function according to any one of the above.
−2.00 <(r32R + r32F) / (r32R−r32F) <− 0.70
However,
r32F is a radius of curvature of the object side surface of the positive lens of the thirty-second lens group,
r32R is the radius of curvature of the image side surface of the biconcave negative lens of the thirty-second lens group
0.40<r32S/f32<0.90
但し、
r32Sは前記第32レンズ群の前記接合レンズの接合面の曲率半径、
f32は前記第32レンズ群の焦点距離 The zoom lens having an image stabilization function according to claim 7, wherein the following condition is satisfied.
0.40 <r32S / f32 <0.90
However,
r32S is a radius of curvature of the cemented surface of the cemented lens of the thirty-second lens group,
f32 is the focal length of the thirty-second lens group.
1.70<f11/f12<4.00
但し、
f11は前記第11レンズ群の焦点距離、
f12は前記第12レンズ群の焦点距離 The first lens group includes, in order from the object side, an eleventh lens group having a positive refractive power and a twelfth lens group having a positive refractive power. In focusing from a long distance state to a short distance state, the twelfth lens group only moved toward the object, a zoom lens having a vibration reduction function according to any one of claims 1 9, characterized in that the following condition is satisfied.
1.70 <f11 / f12 <4.00
However,
f11 is a focal length of the eleventh lens group,
f12 is the focal length of the twelfth lens group
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005036624A JP4120647B2 (en) | 2005-02-14 | 2005-02-14 | Zoom lens with anti-vibration function |
US11/091,652 US7158315B2 (en) | 2004-03-30 | 2005-03-29 | Zoom lens system |
CN2010101712414A CN101866045B (en) | 2004-03-30 | 2005-03-30 | Zoom lens with vibration-proof function |
CN2008100806915A CN101334517B (en) | 2004-03-30 | 2005-03-30 | Zoom lens system |
US11/446,319 US7242532B2 (en) | 2004-03-30 | 2006-06-05 | Zoom lens system |
US11/759,804 US7330316B2 (en) | 2004-03-30 | 2007-06-07 | Zoom lens system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005036624A JP4120647B2 (en) | 2005-02-14 | 2005-02-14 | Zoom lens with anti-vibration function |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2006221092A JP2006221092A (en) | 2006-08-24 |
JP2006221092A5 true JP2006221092A5 (en) | 2008-02-28 |
JP4120647B2 JP4120647B2 (en) | 2008-07-16 |
Family
ID=36983447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005036624A Active JP4120647B2 (en) | 2004-03-30 | 2005-02-14 | Zoom lens with anti-vibration function |
Country Status (1)
Country | Link |
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JP (1) | JP4120647B2 (en) |
Families Citing this family (19)
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JP5280232B2 (en) | 2009-02-02 | 2013-09-04 | パナソニック株式会社 | Zoom lens system, interchangeable lens device, and camera system |
US8411368B2 (en) | 2009-02-02 | 2013-04-02 | Panasonic Corporation | Zoom lens system, interchangeable lens apparatus and camera system |
JP5340759B2 (en) | 2009-02-02 | 2013-11-13 | パナソニック株式会社 | Zoom lens system, interchangeable lens device, and camera system |
US9146386B2 (en) | 2009-11-25 | 2015-09-29 | Nikon Corporation | Optical element, zoom lens, optical apparatus, method for manufacturing optical element and method for manufacturing zoom lens |
JP5487909B2 (en) * | 2009-11-25 | 2014-05-14 | 株式会社ニコン | Zoom lens, optical device, and zoom lens manufacturing method |
JP5333625B2 (en) * | 2011-05-25 | 2013-11-06 | 株式会社ニコン | Zoom lens, optical device, and zoom lens manufacturing method |
US8982477B2 (en) | 2011-05-25 | 2015-03-17 | Nikon Corporation | Zoom lens, optical apparatus and method for manufacturing zoom lens |
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2005
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