JP2008015251A5 - - Google Patents

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Publication number
JP2008015251A5
JP2008015251A5 JP2006186690A JP2006186690A JP2008015251A5 JP 2008015251 A5 JP2008015251 A5 JP 2008015251A5 JP 2006186690 A JP2006186690 A JP 2006186690A JP 2006186690 A JP2006186690 A JP 2006186690A JP 2008015251 A5 JP2008015251 A5 JP 2008015251A5
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Prior art keywords
lens
lens group
refractive power
focal length
zoom
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JP2006186690A
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Japanese (ja)
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JP2008015251A (en
JP5201809B2 (en
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物体側より像側へ順に、正の屈折力の第１レンズ群、負の屈折力の第２レンズ群、ズーミングに際して移動する１群以上のレンズ群を有し、全ズーム範囲にて全体として正の屈折力の中間レンズユニット、正の屈折力の後方レンズ群から構成され、広角端に対し、望遠端での該第１レンズ群と第２レンズ群との間隔が広く、該第２レンズ群と該中間レンズユニットとの間隔が狭く、該中間レンズユニットと後方レンズ群との間隔が狭くなるように各レンズ群が移動するズームレンズであって、
該中間レンズユニットは、光軸に対し垂直方向の成分を持つように移動して全系が形成する像を光軸と垂直方向に変位させる負の屈折力のレンズ部を有しており、
該後方レンズ群の焦点距離をｆｒｐ、
該後方レンズ群中の１つの正レンズの材料のアッベ数をνｄｐ、
望遠端におけるズームレンズの焦点距離をｆｔ
とするとき、
０．０５＜ｆｒｐ／ｆｔ＜０．３
７２＜νｄｐ＜９７
なる条件を満足することを特徴とするズームレンズ。 In order from the object side to the image side, there are a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, and one or more lens units that move during zooming. An intermediate lens unit having a positive refractive power and a rear lens group having a positive refractive power, and the distance between the first lens group and the second lens group at the telephoto end is wider than the wide-angle end, and the second lens group A zoom lens in which each lens group moves so that a distance between the intermediate lens unit and the intermediate lens unit is narrow, and a distance between the intermediate lens unit and the rear lens group is narrow,
The intermediate lens unit includes a lens unit having a negative refractive power that moves so as to have a component perpendicular to the optical axis and displaces an image formed by the entire system in a direction perpendicular to the optical axis.
The focal length of the rear lens group is frp,
The Abbe number of the material of one positive lens in the rear lens group is νdp,
Ft is the focal length of the zoom lens at the telephoto end
And when
0.05 <frp / ft <0.3
72 <νdp <97
A zoom lens characterized by satisfying the following conditions: 物体側より像側へ順に、正の屈折力の第１レンズ群、負の屈折力の第２レンズ群、ズーミングに際して移動する１群以上のレンズ群を有し、全ズーム範囲にて全体として正の屈折力の中間レンズユニット、正の屈折力の後方レンズ群から構成され、広角端に対し、望遠端での該第１レンズ群と第２レンズ群との間隔が広く、該第２レンズ群と該中間レンズユニットとの間隔が狭く、該中間レンズユニットと後方レンズ群との間隔が狭くなるように各レンズ群が移動するズームレンズであって、
広角端から望遠端へのズーミングにおける該後方レンズ群の光軸方向の移動量をＭｒｐ、
該後方レンズ群の焦点距離をｆｒｐ、
該後方レンズ群中の１つの正レンズの材料のアッベ数をνｄｐ、
望遠端におけるズームレンズの焦点距離をｆｔ
とするとき、
０．０５＜ｆｒｐ／ｆｔ＜０．３
７２＜νｄｐ＜９７
−０．３＜Ｍｒｐ／ｆｔ＜−０．０５
なる条件を満足することを特徴とするズームレンズ。 In order from the object side to the image side, there are a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, and one or more lens units that move during zooming. An intermediate lens unit having a positive refractive power and a rear lens group having a positive refractive power, and the distance between the first lens group and the second lens group at the telephoto end is wider than the wide-angle end, and the second lens group A zoom lens in which each lens group moves so that a distance between the intermediate lens unit and the intermediate lens unit is narrow, and a distance between the intermediate lens unit and the rear lens group is narrow,
The amount of movement of the rear lens group in the optical axis direction during zooming from the wide-angle end to the telephoto end is Mrp,
The focal length of the rear lens group is frp,
The Abbe number of the material of one positive lens in the rear lens group is νdp,
Ft is the focal length of the zoom lens at the telephoto end
And when
0.05 <frp / ft <0.3
72 <νdp <97
−0.3 <Mrp / ft <−0.05
A zoom lens characterized by satisfying the following conditions: 物体側より像側へ順に、正の屈折力の第１レンズ群、負の屈折力の第２レンズ群、ズーミングに際して移動する１群以上のレンズ群から構成され、全ズーム範囲にて全体として正の屈折力の中間レンズユニット、正の屈折力の後方レンズ群から構成され、広角端に対し、望遠端での該第１レンズ群と第２レンズ群との間隔が広く、該第２レンズ群と該中間レンズユニットとの間隔が狭く、該中間レンズユニットと後方レンズ群との間隔が狭くなるように各レンズ群が移動するズームレンズであって、
該中間レンズユニットは、物体側から像側へ順に正の屈折力の第ｒｐ１レンズ群、負の屈折力の第ｒｎ１レンズ群を有し、
該第ｒｎ１レンズ群は光軸に対し垂直方向の成分を持つように移動して全系が形成する像を光軸と垂直方向に変位させる負の屈折力の第Ｇｉｓレンズ群を有しており、
該後方レンズ群の焦点距離をｆｒｐ、
該第Ｇｉｓレンズ群の焦点距離をｆｉｓ、
望遠端におけるズームレンズの焦点距離をｆｔ
とするとき、
０．０５＜ｆｒｐ／ｆｔ＜０．３
−０．４＜ｆｉｓ／ｆｔ＜−０．１
−０．３＜Ｍｒｐ／ｆｔ＜−０．０５
なる条件を満足することを特徴とするズームレンズ。 In order from the object side to the image side, the first lens group having a positive refractive power, the second lens group having a negative refractive power, and one or more lens groups that move during zooming, and are positive as a whole in the entire zoom range. An intermediate lens unit having a positive refractive power and a rear lens group having a positive refractive power, and the distance between the first lens group and the second lens group at the telephoto end is wider than the wide-angle end, and the second lens group A zoom lens in which each lens group moves so that a distance between the intermediate lens unit and the intermediate lens unit is narrow, and a distance between the intermediate lens unit and the rear lens group is narrow,
The intermediate lens unit has an rp1 lens group having a positive refractive power and an rn1 lens group having a negative refractive power in order from the object side to the image side.
It said rn1 lens group has a first Gis lens unit having a negative refractive power for displacing the image entire system moves so as to have a perpendicular component with respect to the optical axis is formed perpendicular to the optical axis direction ,
The focal length of the rear lens group is frp,
The focal length of the Gis lens group is fis,
Ft is the focal length of the zoom lens at the telephoto end
And when
0.05 <frp / ft <0.3
−0.4 <fis / ft <−0.1
−0.3 <Mrp / ft <−0.05
A zoom lens characterized by satisfying the following conditions: 前記第ｒｎ１レンズ群の焦点距離をｆｒｎ１とするとき
１．１＜ｆｉｓ／ｆｒｎ１＜３．０
なる条件を満足することを特徴とする請求項３のズームレンズ。 When the focal length of the rn1 lens group is frn1, 1.1 <fis / frn1 <3.0
The zoom lens according to claim 3, wherein the following condition is satisfied. 物体側より像側へ順に、正の屈折力の第１レンズ群、負の屈折力の第２レンズ群、ズーミングに際して移動する１群以上のレンズ群から構成され、全ズーム範囲にて全体として正の屈折力の中間レンズユニット、正の屈折力の後方レンズ群から構成され、広角端に対し、望遠端での該第１レンズ群と第２レンズ群との間隔が広く、該第２レンズ群と該中間レンズユニットとの間隔が狭く、該中間レンズユニットと後方レンズ群との間隔が狭くなるように各レンズ群が移動するズームレンズであって、
該中間レンズユニットは、物体側から像側へ順に正の屈折力の第ｒｐ１レンズ群、負の屈折力の第ｒｎ１１レンズ群、負の屈折力の第ｒｎ１２レンズ群を有し、該第ｒｎ１１レンズ群は、光軸に対し垂直方向の成分を持つように移動して全系が形成する像を光軸と垂直方向に変位させており、
該後方レンズ群の焦点距離をｆｒｐ、
該第ｒｎ１１レンズ群の焦点距離をｆｒｎ１１、
望遠端におけるズームレンズの焦点距離をｆｔ
とするとき、
０．０５＜ｆｒｐ／ｆｔ＜０．３
−０．４＜ｆｒｎ１１／ｆｔ＜−０．１
なる条件を満足することを特徴とするズームレンズ。 In order from the object side to the image side, the first lens group having a positive refractive power, the second lens group having a negative refractive power, and one or more lens groups that move during zooming, and are positive as a whole in the entire zoom range. An intermediate lens unit having a positive refractive power and a rear lens group having a positive refractive power, and the distance between the first lens group and the second lens group at the telephoto end is wider than the wide-angle end, and the second lens group A zoom lens in which each lens group moves so that a distance between the intermediate lens unit and the intermediate lens unit is narrow, and a distance between the intermediate lens unit and the rear lens group is narrow,
The intermediate lens unit includes, in order from the object side to the image side, an rp1 lens group having a positive refractive power, an rn11 lens group having a negative refractive power, and an rn12 lens group having a negative refractive power, and the rn11 lens The group moves so as to have a component perpendicular to the optical axis and displaces the image formed by the entire system in the direction perpendicular to the optical axis.
The focal length of the rear lens group is frp,
The focal length of the rn11 lens group is frn11,
Ft is the focal length of the zoom lens at the telephoto end
And when
0.05 <frp / ft <0.3
−0.4 <frn11 / ft <−0.1
A zoom lens characterized by satisfying the following conditions: 前記後方レンズ群は、１以上の正レンズと１枚の負レンズを有し、該１以上の正レンズのうち材料の分散が最も低い正レンズの焦点距離をｆｐ、
該後方レンズ群の焦点距離をｆｒｐ、
とするとき
０．０５＜ｆｐ／ｆｒｐ＜２．０
なる条件を満足することを特徴とする請求項１から５のいずれか１項のズームレンズ。 The rear lens group includes one or more positive lenses and one negative lens, and the focal length of the positive lens having the lowest material dispersion among the one or more positive lenses is fp,
The focal length of the rear lens group is frp,
0.05 <fp / frp <2.0
The zoom lens according to claim 1, wherein the following condition is satisfied. 前記後方レンズ群は１以上の正レンズと１枚の負レンズを有し、該負レンズの材料のアッベ数をνｄｎとするとき
３４＜νｄｎ＜６０
なる条件を満足することを特徴とする請求項１から６のいずれか１項のズームレンズ。 The rear lens group has one or more positive lenses and one negative lens. When the Abbe number of the material of the negative lens is νdn, 34 <νdn <60.
The zoom lens according to claim 1, wherein the following condition is satisfied. 前記第２レンズ群の焦点距離をｆ２、望遠端におけるズームレンズの焦点距離をｆｔとするとき
−０．１５＜ｆ２／ｆｔ＜−０．０４
なる条件を満足することを特徴とする請求項１から７のいずれか１項のズームレンズ。 When the focal length of the second lens group is f2 and the focal length of the zoom lens at the telephoto end is ft, −0.15 <f2 / ft <−0.04.
The zoom lens according to claim 1, wherein the following condition is satisfied. 前記第１レンズ群の焦点距離をｆ１、望遠端におけるズームレンズの焦点距離をｆｔとするとき
０．３＜ｆ１／ｆｔ＜０．８
なる条件を満足することを特徴とする請求項１から８のいずれか１項のズームレンズ。 When the focal length of the first lens unit is f1, and the focal length of the zoom lens at the telephoto end is ft, 0.3 <f1 / ft <0.8.
The zoom lens according to claim 1, wherein the following condition is satisfied. 前記第２レンズ群は光軸方向に移動してフォーカスを行うことを特徴とする請求項１から９のいずれか１項に記載のズームレンズ。   The zoom lens according to claim 1, wherein the second lens group moves in the optical axis direction to perform focusing. 請求項１から１０のいずれか１項に記載のズームレンズと、該ズームレンズによって形成される像を撮像する固体撮像素子とを有していることを特徴とする撮像装置。   An image pickup apparatus comprising: the zoom lens according to claim 1; and a solid-state image pickup device that picks up an image formed by the zoom lens.
JP2006186690A 2006-07-06 2006-07-06 Zoom lens and imaging apparatus having the same Expired - Fee Related JP5201809B2 (en)

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JP2008015251A5 true JP2008015251A5 (en) 2009-08-13
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