JP5722730B2 - The camera shake correction zoom lens - Google Patents

The camera shake correction zoom lens Download PDF

Info

Publication number
JP5722730B2
JP5722730B2 JP2011184438A JP2011184438A JP5722730B2 JP 5722730 B2 JP5722730 B2 JP 5722730B2 JP 2011184438 A JP2011184438 A JP 2011184438A JP 2011184438 A JP2011184438 A JP 2011184438A JP 5722730 B2 JP5722730 B2 JP 5722730B2
Authority
JP
Grant status
Grant
Patent type
Prior art keywords
lens group
lens
image stabilization
positive
focal length
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.)
Active
Application number
JP2011184438A
Other languages
Japanese (ja)
Other versions
JP2013045039A (en )
Inventor
純 平川
純 平川
Original Assignee
株式会社タムロン
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Grant date

Links

Images

Description

本発明は、F2.8と明るく、手振れ補正機構を組み込むことができる、広角域を含む標準画角の明るい手振れ補正ズームレンズに関する。 The present invention is bright and F2.8, it is possible to incorporate a camera shake correction mechanism, about a bright image stabilization zoom lens having a standard angle of view including the wide-angle range.

近年の光学設計及び製造技術の進歩により、広角域を含む標準画角のズームレンズは、Fナンバーが小さい以下のズームレンズが提案させている。 Recent advances in optical design and manufacturing techniques, the zoom lens of the standard angle of view including the wide-angle range, the following zoom lens F-number is small is to propose. ここで、広角域とは、一般に半画角31°〜45°を示す。 Here, the wide-angle range, generally a half angle of view 31 ° to 45 °. 望遠域とは、一般に半画角10°〜19°を示す。 The telephoto range, shows a generally half angle 10 ° ~ 19 °. 標準画角とは、一般的に半画角20°〜30°を示す。 The standard angle of view, generally showing the half angle 20 ° to 30 °.

従来のズームレンズの一つは、 One of the conventional zoom lens,
物体側から順に、正第1レンズ群G1と負第2レンズ群G2と正又は負第3レンズ群G3と正第4レンズ群G4を有し、レンズ群G1とG2、及びG2とG3、及びG3とG4との空気間隔を変化させることによって変倍するズームレンズにおいて、第2レンズ群G2は物体側から順に像側に凹面を向けた負レンズを含む負レンズL21、物体側に凹面を向けた負レンズを有する負レンズL22、正レンズL2pと負レンズL2nの接合よりなり、物体側に対して凸面を向けた接合正レンズL2pnを含む正レンズL23、物体側に凹面を向けた負レンズL24とを有し、第4レンズ群G4は物体側から順に正レンズL41と少なくとも1枚の非球面レンズLaspを備える負レンズL42とを有し、非球面レンズLaspは所定の条件を満足する( In order from the object side, it has a Tadashidai first lens group G1 and the negative second lens group G2 and the positive or negative third lens group G3 and a positive fourth lens group G4, the lens groups G1 and G2, and G2 and G3 and, in the zoom lens for zooming by varying the air gap between the G3 and G4, the negative lens L21 and the second lens group G2 including a negative lens having a concave surface facing the image side in order from the object side, a concave surface facing the object side a negative lens L22 having a negative lens made of a cemented positive lens L2p and the negative lens L2n, positive lens L23 comprising a cemented positive lens L2pn with a convex surface to the object side, a negative lens with a concave surface facing the object side L24 has the door, the fourth lens group G4 has a positive lens L41 in order from the object side and a negative lens L42 having at least one aspherical lens Lasp, aspherical lens Lasp satisfies a predetermined condition ( えば、特許文献1参照)である。 Eg to a Patent Document 1).

従来技術の他のズームレンズとしては、 Other zoom lens of the prior art,
正、負、正、正の4群ズーム方式で、広角端での撮影画角が約75度、全ズーム域でのFナンバーが約2.8、変倍比が約2.5倍を実現し、尚且つ一眼レフレックスカメラの標準ズームレンズに近い大きさ(レンズ全長:95mm前後、対物側フィルター径:φ67mm)で、光学性能の優れた、特に一眼レフレックスカメラ等の標準ズームレンズとして好適な大口径ズームレンズ(例えば、特許文献2参照)である。 Positive, negative, positive, positive four-group zoom method, shooting angle of about 75 degrees at the wide angle end, F-number of the entire zoom range is about 2.8, the variable magnification ratio is achieved approximately 2.5 times and, besides the standard zoom lens close size of single-lens reflex camera (lens length: 95 mm back and forth, the object-side filter size: φ67mm), the suitable as excellent, the standard zoom lens, such as in particular a single-lens reflex camera optical performance such a large-aperture zoom lens (e.g., see Patent Document 2).

従来技術の他のズームレンズとしては、 Other zoom lens of the prior art,
物体側から順に、正の屈折力を持つ第1レンズ群、負の屈折力をもつ第2レンズ群、正の屈折力を持つ第3レンズ群、正の屈折力をもつ第4レンズ群を有し、広角端から望遠端への変倍により第1レンズ群と第2レンズ群の間隔が広がり、第2レンズ群と第3レンズ群の間隔が狭まり、第3レンズ群と第4レンズ群の間隔が狭まるように移動し、前記第3レンズ群が、物体側から順に、正の屈折力を持つ第3前群と、負の屈折力を持つ第3後群とからなり、手振れ発生時の像面補正は第3後群のみを光軸と直交する方向へ移動させることで行い、前記第4レンズ群が最も物体側に凹レンズを有する大口径ズームレンズ(例えば、特許文献3参照)である。 Yes in order from the object side, a first lens group having positive refractive power, a second lens group having a negative refractive power, a third lens group having positive refractive power, a fourth lens group having a positive refractive power and, from the wide angle end distance between the first lens group and the second lens group is widened by zooming to the telephoto end, narrowing the interval between the second lens group and the third lens group, a fourth lens group third lens group moved such spacing narrows, the third lens group, in order from the object side, a third front group having positive refractive power, and a third rear group having negative refractive power, camera shake at the time of occurrence image surface correction is carried out by moving in the direction perpendicular only the third rear unit to the optical axis, is a large-aperture zoom lens (e.g., see Patent Document 3) having a concave lens to the fourth lens group closest to the object side .

特開2000−321497号 Japanese Unexamined Patent Publication No. 2000-321497 特開2004−101739号 Japanese Unexamined Patent Publication No. 2004-101739 特開2010−266534号 Japanese Unexamined Patent Publication No. 2010-266534

特許文献1に開示されているズームレンズは、Fナンバーが2.8程度であって明るいが、手振れ補正機構を配置する空間を作ることが困難であるため、手振れ補正機構を有していない。 The zoom lens disclosed in Patent Document 1, F-number brighter be about 2.8, since it is difficult to make a space for arranging the image stabilization mechanism, it does not have a camera shake correction mechanism.

特許文献2に開示されたズームレンズは、焦点距離が24からのズームレンズであり、広角である。 The zoom lens disclosed in Patent Document 2, a zoom lens from the focal length 24, a wide angle. しかし、このズームレンズも手振れ補正機構を配置する空間を作ることが困難であるため、手振れ補正機構を有していない。 However, to make a space this zoom lens also to place the image stabilization mechanism is difficult, it does not have a camera shake correction mechanism.

特許文献3に開示されたズームレンズは、手振れ補正機構を有する。 The zoom lens disclosed in Patent Document 3 has a camera shake correction mechanism. しかし、手振れ補正のために光軸と直交する方向に移動させるレンズの直径が大きく、手振れ補正機構の作動力を大きく、従って手振れ機構が大型で消費電力も大きいという問題がある。 However, larger diameter of the lens is moved in a direction perpendicular to the optical axis for image stabilization, increasing the operating force of the image stabilization mechanism, thus shaking motion mechanism has a problem that large power consumption large.

(発明の目的) (The purpose of the invention)
本発明は、従来のズームレンズの上述した問題点に鑑みてなされたものであって、F2.8程度と明るく、手振れ補正機構を組み込むことができる、広角域を含む標準画角の明るい手振れ補正ズームレンズを提供することを目的とする。 The present invention was made in view of the aforementioned problems of the conventional zoom lens, bright about F2.8, can incorporate image stabilization mechanism, bright standard angle of view including the wide-angle range image stabilization and to provide a zoom lens.

本発明は、 The present invention,
被写体側から、正の第1レンズ群、負の第2レンズ群、正の第3レンズ群、正の第4レンズ群からなり、 From the object side, a positive first lens group, a negative second lens group, a positive third lens group and a positive fourth lens group,
広角端から望遠端への変倍時に第1レンズ群と第2レンズ群の間隔が広がり、第2レンズ群と第3レンズ群の間隔が狭まり、第3レンズ群と第4レンズ群の間隔が狭まるように移動し、 The wide-angle end distance between the first lens group and the second lens group spread at the time of zooming to the telephoto end from narrowing the interval between the second lens group and the third lens group, and a third lens group spacing of the fourth lens group move so narrow,
前記第3レンズ群は、物体側から順に、正の第3前レンズ群と、負の第3中レンズ群と、正の第3後レンズ群からなり、 The third lens group includes, in order from the object side, a positive third front lens group, becomes a negative third in the lens group, a positive third back lens group,
手振れ補正を第3中レンズ群を光軸と垂直の方向へ移動させることで行い、下記の条件式(1)を満足する手振れ補正ズームレンズ。 Performs shake correction by moving the third in the lens group perpendicular to the optical axis direction, image stabilization zoom lens satisfying the following conditional expression (1).
0.7<(F12W×F12T)/(F34W×F34T)<1.2 ・・・・(1) 0.7 <(F12W × F12T) / (F34W × F34T) <1.2 ···· (1)
但し F12W: 広角端での第1レンズ群と第2レンズ群の合成焦点距離 However F12W: the first lens unit at the wide angle end and the composite focal length of the second lens group
F12T: 望遠端での第1レンズ群と第2レンズ群の合成焦点距離 F12T: the first lens group at the telephoto end and the composite focal length of the second lens group
F34W: 広角端での第3レンズ群と第4レンズ群の合成焦点距離 F34W: the third lens group at the wide angle end and the composite focal length of the fourth lens group
F34T: 望遠端での第3レンズ群と第4レンズ群の合成焦点距離である。 F34T: a composite focal length of the third lens group and the fourth lens group at the telephoto end.

本発明の手振れ補正ズームレンズによれば、F2.8程度と明るく、広角域を含む標準画角で、手振れ補正機構を組み込むことができる手振れ補正ズームレンズを構成できる。 According to image stabilization zoom lens of the present invention, bright about F2.8, the standard angle of view including the wide-angle range can be configured to image stabilization zoom lens which may incorporate image stabilization mechanism.

(本発明の実施態様1) (Embodiment 1 of the present invention)
上述した本発明の手振れ補正ズームレンズおいて、さらに下記の条件式(2)〜(4)を満足することを特徴とする手振れ補正ズームレンズ。 Keep image stabilization zoom lens of the present invention described above, image stabilization zoom lens, characterized by further satisfying the following conditional expression (2) to (4).
0.5<|BX1/F3|<0.9 ・・・・(2) 0.5 <| BX1 / F3 | <0.9 ···· (2)
BX1<0 ・・・・(3) BX1 <0 ···· (3)
F3>0 ・・・・(4) F3> 0 ···· (4)
但し BX1; 防振群(第3中群)の焦点距離 However BX1; focal length of the vibration-proof group (third intermediate lens group)
F3 ; 第3群の焦点距離 F3; focal length of the third group

(本発明の実施態様2) (Embodiment 2 of the present invention)
上述した本発明の手振れ補正ズームレンズおいて、さらに下記の条件式(5)を満足することを特徴とする手振れ補正ズームレンズ。 Keep image stabilization zoom lens of the present invention described above, image stabilization zoom lens, characterized by further satisfying the following conditional expression (5).
3.2<ST_W/Fw<4 ・・・・(5) 3.2 <ST_W / Fw <4 ···· (5)
但し ST_W: 広角端で絞りと結像面の距離 However ST_W: Distance aperture at the wide-angle end and the imaging plane
FW : 広角端の全系焦点距離 FW: focal length of the wide-angle end

(本発明の実施態様3) (Embodiment 3 of the present invention)
上述した本発明の手振れ補正ズームレンズおいて、らに下記の条件式(6)を満足することを特徴とする手振れ補正ズームレンズ。 Keep image stabilization zoom lens of the present invention described above, image stabilization zoom lens satisfies the following conditional expression (6) et.
1.0<F3/F4<1.8 ・・・・(6) 1.0 <F3 / F4 <1.8 ···· (6)
但し F3: 第3レンズ群の焦点距離 However F3: a focal length of the third lens group
F4: 第4レンズ群の焦点距離 F4: a focal length of the fourth lens group

(本発明の実施態様4) (Embodiment 4 of the present invention)
上述した本発明の手振れ補正ズームレンズおいて、さらに下記の条件式(7)を満足することを特徴とする手振れ補正ズームレンズ。 Keep image stabilization zoom lens of the present invention described above, image stabilization zoom lens, characterized by further satisfying the following conditional expression (7).
0.9 <|BX1/F34T|< 1.3 ・・・・(7) 0.9 <| BX1 / F34T | <1.3 ···· (7)
但し BX1 : 第3中レンズ群の焦点距離 However BX1: focal length of the third in the lens group
F34T: 望遠端での第3レンズ群と第4レンズ群の合成焦点距離 F34T: third lens group at the telephoto end and the composite focal length of the fourth lens group

(条件式1の作用効果) (Effects of the conditional expressions 1)
条件式(1)の上限を超えると、第1レンズ群と第2レンズ群の合成焦点距離が短くなって、第3レンズ群と第4レンズ群を小型化するためには有利であるが、第1レンズ群と第2レンズの有効径が大きくなり、鏡筒の被写体側部分の小径化が困難となる。 If the upper limit of condition (1), and the combined focal length of the first lens group and the second lens group becomes short, but in order to reduce the size of the third lens group and the fourth lens group is advantageous, the effective diameter of the first lens group second lens is increased, it is difficult to diameter of the object side portion of the lens barrel.
条件式(1)の下限を超えると、鏡筒の被写体側部分の小径化には有利であるが、第3レンズ群と第4レンズ群の有効径が大きくなり、さらに手振れ補正機構の小型化が困難となる。 When the lower limit of the conditional expression (1), it is advantageous for small diameter of the object side portion of the lens barrel, the effective diameter of the third lens group and the fourth lens group becomes large, further downsizing of the image stabilization mechanism It becomes difficult.

(条件式2〜4の作用効果) (Effects of the conditional expression 2-4)
手振れ補正のために第3中レンズ群を光軸と垂直の方向へ移動させるが、条件式(2)〜(4)は、第3中レンズ群を正のレンズ群で挟み、手振れ補正のために移動させる第3中レンズ群を小径化するための条件である。 Although the third in the lens group is moved perpendicular to the optical axis direction for image stabilization, condition (2) to (4), the third in the lens group sandwiched by the positive lens group, for image stabilization the third in the lens group to be moved is a condition for diameter of the. 従って、条件式(2)〜(4)を外れると、手振れ補正のために移動させる第3中レンが大径化し、手振れ補正機構のために好ましくない。 Therefore, when the outside conditional expression (2) to (4), during the third lens moving is increased in diameter for image stabilization, is not preferable for the image stabilization mechanism.

(条件式5の作用効果) (Effects of the conditional expression 5)
条件式(5)の上限を超えると、第3レンズ群と第4レンズ群の半径方向のサイズを小さくできるが、絞りと結像面が近付くため、手振れ補正機構の駆動系、絞り駆動系、フォーカス駆動系を納める空間を形成することが困難になる。 When the upper limit of the conditional expression (5), can be reduced and the third lens unit the size of the radial direction of the fourth lens group, since the aperture and the imaging plane is approached, image stabilization mechanism of the drive system, the aperture drive system, it is difficult to form a space to pay focus driving system.
条件式(5)の下限を超えると、絞りと結像面の間隔が大きくなり、第3レンズ群と第4レンズ群の有効径が大きくなり、手振れ補正機構が大型化する。 If the lower limit of condition (5), the interval between the diaphragm and the imaging plane becomes large, the effective diameter of the third lens group and the fourth lens group becomes large, image stabilization mechanism becomes large.

(条件式6の作用効果) (Effects of the conditional expression 6)
条件式(6)の上限を超えると、広角端でレンズバック(バックフォーカス)が取り易いが、第4レンズ群の有効径が大きくなる。 If the upper limit of condition (6), but easily taken lens back (back focus) is at the wide-angle end, the effective diameter of the fourth lens group becomes large.
条件式(6)の下限を超えると、第4レンズ群の小型化には有利だが、広角端でレンズバック(バックフォーカス)が小さくなる。 When the lower limit of the conditional expression (6), it is advantageous for downsizing of the fourth lens group, but a lens back (back focus) is reduced at the wide-angle end.

(条件式7の作用効果) (Effects of the conditional expression 7)
手振れ補正のために第3中レンズ群を光軸と垂直の方向へ移動させるが、条件式(7)の上限を超えると、第3中レンズ群の屈折力が小さくなり、手振れ補正のために移動させる第3中レンズ群を小径化できない。 Although the third in the lens group is moved perpendicular to the optical axis direction for image stabilization, exceeds the upper limit of condition (7), refractive power of the third in the lens group is reduced, for image stabilization unable diameter of the third in the lens group to be moved.
条件式(7)の下限を超えると、手振れ補正のために移動させる第3中レンズ群を小径化できるが、第3中レンズ群を手振れ補正のために光軸直交方向へ移動させたときの収差補正が困難になる。 When the lower limit of the conditional expression (7), can be smaller in diameter the third in the lens group to be moved for image stabilization, when moving to a direction perpendicular to the optical axis of the third in the lens group for image stabilization aberration correction becomes difficult.

本発明の第1実施形態の手振れ補正ズームレンズの望遠端及び広角端のレンズ配置図である。 A lens arrangement diagram of a telephoto end and the wide angle end of the image stabilization zoom lens of the first embodiment of the present invention. 本発明の第1実施形態の手振れ補正ズームレンズの望遠端の球面収差図、非点収差図、横色収差図及び歪曲収差図である。 Spherical aberration diagram at the telephoto end of the camera-shake correction zoom lens of the first embodiment of the present invention, the astigmatism diagram, a lateral chromatic aberration diagram, and a distortion aberration diagram. 本発明の第1実施形態の手振れ補正ズームレンズの広角端の球面収差図、非点収差図、横色収差図及び歪曲収差図である。 Spherical aberration diagram at the wide-angle end of the image stabilization zoom lens of the first embodiment of the present invention, the astigmatism diagram, a lateral chromatic aberration diagram, and a distortion aberration diagram. 本発明の第2実施形態の手振れ補正ズームレンズの望遠端及び広角端のレンズ配置図である。 A lens arrangement diagram of a telephoto end and the wide angle end of the image stabilization zoom lens of the second embodiment of the present invention. 本発明の第2実施形態の手振れ補正ズームレンズの望遠端の球面収差図、非点収差図、横色収差図及び歪曲収差図である。 Spherical aberration diagram at the telephoto end of the camera-shake correction zoom lens of the second embodiment of the present invention, the astigmatism diagram, a lateral chromatic aberration diagram, and a distortion aberration diagram. 本発明の第2実施形態の手振れ補正ズームレンズの広角端の球面収差図、非点収差図、横色収差図及び歪曲収差図である。 Spherical aberration diagram at the wide-angle end of the image stabilization zoom lens of the second embodiment of the present invention, the astigmatism diagram, a lateral chromatic aberration diagram, and a distortion aberration diagram. 本発明の第3実施形態の手振れ補正ズームレンズの望遠端及び広角端のレンズ配置図である。 A lens arrangement diagram of a telephoto end and the wide angle end of the image stabilization zoom lens of the third embodiment of the present invention. 本発明の第3実施形態の手振れ補正ズームレンズの望遠端の球面収差図、非点収差図、横色収差図である。 Third spherical aberration diagram at the telephoto end of the camera-shake correction zoom lens embodiment of the present invention, the astigmatism diagram, a lateral chromatic aberration diagram. 本発明の第3実施形態の手振れ補正ズームレンズの広角端の球面収差図、非点収差図、横色収差図及び歪曲収差図である。 Spherical aberration diagram at the wide-angle end of the image stabilization zoom lens of the third embodiment of the present invention, the astigmatism diagram, a lateral chromatic aberration diagram, and a distortion aberration diagram.

前記球面収差図において、dはd線、fはf線、cはc線を示す。 In the spherical aberration diagram, d represents the d-line, f is f line, c is shown a c-line. 前記非点収差図において、sはサジタル、mはメリジオナルを示す。 In the astigmatism diagram, s sagittal, m denotes the meridional. 横色収差図において、fはf線、cはc線を示す。 In the lateral chromatic aberration diagram, f is f line, c is shown a c-line.

(第1実施形態) (First Embodiment)
本発明の第1実施形態の手振れ補正ズームレンズは、正の第1レンズ群LG1、負の第2レンズ群LG2、正の第3レンズ群LG3、正の第4レンズ群LG4からなり、各レンズ面NSの曲率半径R(mm)、各レンズ中心厚及びレンズの空気間隔D(mm)、各レンズのd線における屈折率Nd及びアッベ数ABVの値を以下に示す。 Image stabilization zoom lens of the first embodiment of the present invention, a positive first lens group LG1, a negative second lens group LG2, a positive third lens group LG3, and a positive fourth lens group LG4, each lens the radius of curvature R of the surface NS (mm), an air spacing D of each lens center thickness and lens (mm), indicating the value of the refractive index Nd and the Abbe number ABV of each lens at d-line below.
NS RD Nd ABV NS RD Nd ABV
1 287.4507 1.5000 1.92286 20.88 1 287.4507 1.5000 1.92286 20.88
2 119.1356 7.0000 1.77250 49.62 2 119.1356 7.0000 1.77250 49.62
3 963.8287 0.2000 3 963.8287 0.2000
4 64.7537 7.0000 1.72916 54.67 4 64.7537 7.0000 1.72916 54.67
5 158.5256 D( 5) 5 158.5256 D (5)
6 ASPH 1000.0000 0.2000 1.51409 49.72 6 ASPH 1000.0000 0.2000 1.51409 49.72
7 80.0000 1.0000 1.80400 46.57 7 80.0000 1.0000 1.80400 46.57
8 18.1865 7.5702 8 18.1865 7.5702
9 -73.3842 0.8000 1.77250 49.62 9 -73.3842 0.8000 1.77250 49.62
10 60.6123 0.1500 10 60.6123 0.1500
11 47.3950 4.2000 1.90366 31.32 11 47.3950 4.2000 1.90366 31.32
12 -423.2752 3.8000 12 -423.2752 3.8000
13 ASPH -21.8417 1.0000 1.58313 59.46 13 ASPH -21.8417 1.0000 1.58313 59.46
14 150.0793 3.0000 1.90366 31.32 14 150.0793 3.0000 1.90366 31.32
15 -47.0962 D(15) 15 -47.0962 D (15)
16 STOP INF 1.0000 16 STOP INF 1.0000
17 ASPH 36.5643 0.3500 1.51409 49.72 17 ASPH 36.5643 0.3500 1.51409 49.72
18 35.0000 5.0000 1.48749 70.24 18 35.0000 5.0000 1.48749 70.24
19 -55.5339 4.0000 19 -55.5339 4.0000
20 73.3223 4.0000 1.49700 81.55 20 73.3223 4.0000 1.49700 81.55
21 -93.2550 3.0000 21 -93.2550 3.0000
22 ASPH -36.4863 0.8000 1.62263 58.16 22 ASPH -36.4863 0.8000 1.62263 58.16
23 73.6915 2.0000 1.84666 23.78 23 73.6915 2.0000 1.84666 23.78
24 60.4001 1.5000 24 60.4001 1.5000
25 49.2634 6.0000 1.49700 81.55 25 49.2634 6.0000 1.49700 81.55
26 -49.6333 0.8000 1.72825 28.32 26 -49.6333 0.8000 1.72825 28.32
27 246.0122 D(27) 27 246.0122 D (27)
28 27.4223 8.0000 1.49700 81.55 28 27.4223 8.0000 1.49700 81.55
29 -101.2715 0.1000 29 -101.2715 0.1000
30 102.0516 5.0000 1.54814 45.78 30 102.0516 5.0000 1.54814 45.78
31 -63.6573 0.1000 31 -63.6573 0.1000
32 ASPH 328.9319 1.7000 1.82080 42.71 32 ASPH 328.9319 1.7000 1.82080 42.71
33 ASPH 57.9834 D(33) 33 ASPH 57.9834 D (33)
34 INF 2.0000 1.51633 64.14 34 INF 2.0000 1.51633 64.14

上記数値表において、ASPHは、下記非球面式で示される非球面である。 In the above numeric, ASPH is an aspherical represented by the following aspheric expression.
非球面の式 Non-spherical surface expression of

非球面係数の値は、以下のとおりである。 The value of the aspheric coefficient is as follows.
ASPH κ A 46810 ASPH κ A 4 A 6 A 8 A 10
6 1.0000 1.70512E-005 -5.38646E-008 2.28612E-010 -5.65148E-013 6 1.0000 1.70512E-005 -5.38646E-008 2.28612E-010 -5.65148E-013
13 1.0768 -4.39419E-006 5.89726E-008 -4.31684E-010 8.79568E-013 13 1.0768 -4.39419E-006 5.89726E-008 -4.31684E-010 8.79568E-013
17 0.8347 -4.74729E-006 -6.31485E-009 -6.82357E-012 1.91883E-013 17 0.8347 -4.74729E-006 -6.31485E-009 -6.82357E-012 1.91883E-013
22 1.0000 8.72905E-006 -2.71141E-008 2.96450E-010 -1.30281E-012 22 1.0000 8.72905E-006 -2.71141E-008 2.96450E-010 -1.30281E-012
32 1.0000 -1.12207E-005 -1.71815E-008 5.59223E-011 -1.08265E-013 32 1.0000 -1.12207E-005 -1.71815E-008 5.59223E-011 -1.08265E-013
33 1.0000 8.51859E-006 -2.48782E-010 1.21200E-010 -1.26208E-013 33 1.0000 8.51859E-006 -2.48782E-010 1.21200E-010 -1.26208E-013

ASPH A 12 ASPH A 12
6 6.22424E-016 6 6.22424E-016
13 4.77335E-016 13 4.77335E-016
17 -4.11272E-016 17 -4.11272E-016
22 1.85418E-015 22 1.85418E-015
32 -1.49218E-016 32 -1.49218E-016
33 -2.75597E-016 33 -2.75597E-016

ズーム作動の各焦点距離 F(mm)におけるレンズ間隔の変化は、以下の通りである。 Changes in lens distance at each focal length F (mm) of the zoom operation is as follows.
F 24.5008 37.3628 69.0533 F 24.5008 37.3628 69.0533
D( 5) 2.0361 18.0000 42.4804 D (5) 2.0361 18.0000 42.4804
D(15) 19.0515 10.0047 1.1691 D (15) 19.0515 10.0047 1.1691
D(27) 5.1612 2.6000 0.9308 D (27) 5.1612 2.6000 0.9308
D(33) 39.3200 47.0950 56.7130 D (33) 39.3200 47.0950 56.7130

条件式の値は、以下の通りである。 The value of the conditional expression is as follows.
条件式(1) (F12W×F12T)/(F34W×F34T)=1.104 Condition (1) (F12W × F12T) / (F34W × F34T) = 1.104
条件式(2) |BX1/F3|=0.524 Conditional expression (2) | BX1 / F3 | = 0.524
条件式(3) BX1=-35.277 The conditional expression (3) BX1 = -35.277
条件式(4) F3=67.342 Conditional expression (4) F3 = 67.342
条件式(5) ST_W/Fw=3.670 Conditional expression (5) ST_W / Fw = 3.670
条件式(6) F3/F4=1.713 Conditional expression (6) F3 / F4 = 1.713
条件式(7) |BX1/F34T|=1.005 Conditional expression (7) | BX1 / F34T | = 1.005

(第2実施形態) (Second Embodiment)
本発明の第2実施形態の手振れ補正ズームレンズは、正の第1レンズ群LG1、負の第2レンズ群LG2、正の第3レンズ群LG3、正の第4レンズ群LG4からなり、各レンズ面NSの曲率半径R(mm)、各レンズ中心厚及びレンズの空気間隔D(mm)、各レンズのd線における屈折率Nd及びアッベ数ABVの値を以下に示す。 Image stabilization zoom lens of the second embodiment of the present invention, a positive first lens group LG1, a negative second lens group LG2, a positive third lens group LG3, and a positive fourth lens group LG4, each lens the radius of curvature R of the surface NS (mm), an air spacing D of each lens center thickness and lens (mm), indicating the value of the refractive index Nd and the Abbe number ABV of each lens at d-line below.
NS RD Nd ABV NS RD Nd ABV
1 223.1651 1.5000 1.92286 20.88 1 223.1651 1.5000 1.92286 20.88
2 100.2046 7.0000 1.77250 49.62 2 100.2046 7.0000 1.77250 49.62
3 339.8399 0.2000 3 339.8399 0.2000
4 56.7549 8.0000 1.72916 54.67 4 56.7549 8.0000 1.72916 54.67
5 165.9540 D( 5) 5 165.9540 D (5)
6 ASPH 1000.0000 0.2000 1.51409 49.72 6 ASPH 1000.0000 0.2000 1.51409 49.72
7 150.0000 1.0000 1.80400 46.57 7 150.0000 1.0000 1.80400 46.57
8 17.9357 7.5702 8 17.9357 7.5702
9 942.9752 0.8000 1.77250 49.62 9 942.9752 0.8000 1.77250 49.62
10 31.7530 0.1500 10 31.7530 0.1500
11 28.9203 4.2000 1.90366 31.32 11 28.9203 4.2000 1.90366 31.32
12 113.5656 3.8000 12 113.5656 3.8000
13 ASPH -22.4782 1.0000 1.58313 59.46 13 ASPH -22.4782 1.0000 1.58313 59.46
14 58.9885 3.0000 1.90366 31.32 14 58.9885 3.0000 1.90366 31.32
15 -69.1412 D(15) 15 -69.1412 D (15)
16 STOP INF 1.0000 16 STOP INF 1.0000
17 ASPH 32.8511 0.3500 1.51409 49.72 17 ASPH 32.8511 0.3500 1.51409 49.72
18 35.0000 5.0000 1.48749 70.24 18 35.0000 5.0000 1.48749 70.24
19 -37.5800 3.0000 19 -37.5800 3.0000
20 -133.2637 4.0000 1.49700 81.55 20 -133.2637 4.0000 1.49700 81.55
21 -42.0453 3.0000 21 -42.0453 3.0000
22 ASPH -48.2790 0.8000 1.62263 58.16 22 ASPH -48.2790 0.8000 1.62263 58.16
23 70.5105 2.0000 1.84666 23.78 23 70.5105 2.0000 1.84666 23.78
24 61.6089 1.5000 24 61.6089 1.5000
25 45.9605 6.0000 1.49700 81.55 25 45.9605 6.0000 1.49700 81.55
26 -40.0659 0.8000 1.72825 28.32 26 -40.0659 0.8000 1.72825 28.32
27 231.4397 D(27) 27 231.4397 D (27)
28 36.3952 6.0000 1.49700 81.55 28 36.3952 6.0000 1.49700 81.55
29 -103.3691 0.1000 29 -103.3691 0.1000
30 70.3078 5.0000 1.71300 53.94 30 70.3078 5.0000 1.71300 53.94
31 66.4761 2.0000 31 66.4761 2.0000
32 ASPH -493.0896 1.7000 1.82080 42.71 32 ASPH -493.0896 1.7000 1.82080 42.71
33 ASPH 406.6728 2.0000 33 ASPH 406.6728 2.0000
34 -249.2405 4.0000 1.74330 49.22 34 -249.2405 4.0000 1.74330 49.22
35 -62.1510 D(35) 35 -62.1510 D (35)
36 INF 2.0000 1.51633 64.14 36 INF 2.0000 1.51633 64.14

非球面係数の値は、以下のとおりである。 The value of the aspheric coefficient is as follows.
ASPH κ A 46810 ASPH κ A 4 A 6 A 8 A 10
6 1.0000 1.33339E-005 -4.39872E-008 2.15884E-010 -5.49249E-013 6 1.0000 1.33339E-005 -4.39872E-008 2.15884E-010 -5.49249E-013
13 1.1767 -1.23471E-007 -2.01656E-008 -5.96305E-010 8.93894E-012 13 1.1767 -1.23471E-007 -2.01656E-008 -5.96305E-010 8.93894E-012
17 -0.8625 -8.54206E-006 2.75687E-008 -7.79109E-011 -4.89326E-013 17 -0.8625 -8.54206E-006 2.75687E-008 -7.79109E-011 -4.89326E-013
22 1.0000 3.60858E-006 -1.86711E-008 3.22380E-010 -1.15650E-012 22 1.0000 3.60858E-006 -1.86711E-008 3.22380E-010 -1.15650E-012
32 1.0000 -4.29373E-006 6.09566E-010 5.44054E-011 -1.14750E-013 32 1.0000 -4.29373E-006 6.09566E-010 5.44054E-011 -1.14750E-013
33 1.0000 7.77635E-006 -1.72392E-009 1.06308E-010 -2.40997E-013 33 1.0000 7.77635E-006 -1.72392E-009 1.06308E-010 -2.40997E-013

ASPH A 12 ASPH A 12
6 6.09401E-016 6 6.09401E-016
13 -4.76688E-014 13 -4.76688E-014
17 -5.19705E-015 17 -5.19705E-015
22 4.62677E-016 22 4.62677E-016
32 5.52462E-017 32 5.52462E-017
33 1.92308E-016 33 1.92308E-016

ズーム作動の各焦点距離 F(mm)におけるレンズ間隔の変化は、以下の通りである。 Changes in lens distance at each focal length F (mm) of the zoom operation is as follows.
F 24.7010 38.9697 68.9013 F 24.7010 38.9697 68.9013
D( 5) 3.9327 18.0000 35.0000 D (5) 3.9327 18.0000 35.0000
D(15) 19.8795 10.0047 1.1691 D (15) 19.8795 10.0047 1.1691
D(27) 4.9258 2.6000 1.8350 D (27) 4.9258 2.6000 1.8350
D(35) 33.0000 42.2290 54.0530 D (35) 33.0000 42.2290 54.0530

条件式の値は、以下の通りである。 The value of the conditional expression is as follows.
条件式(1) (F12W×F12T)/(F34W×F34T)=0.987 Condition (1) (F12W × F12T) / (F34W × F34T) = 0.987
条件式(2) |BX1/F3|=0.828 Conditional expression (2) | BX1 / F3 | = 0.828
条件式(3) BX1=-42.242 The conditional expression (3) BX1 = -42.242
条件式(4) F3=51.032 Conditional expression (4) F3 = 51.032
条件式(5) ST_W/Fw=3.570 Conditional expression (5) ST_W / Fw = 3.570
条件式(6) F3/F4=1.130 Conditional expression (6) F3 / F4 = 1.130
条件式(7) |BX1/F34T|=1.212 Conditional expression (7) | BX1 / F34T | = 1.212

(第3実施形態) (Third Embodiment)
本発明の第3実施形態の手振れ補正ズームレンズは、正の第1レンズ群LG1、負の第2レンズ群LG2、正の第3レンズ群LG3、正の第4レンズ群LG4からなり、各レンズ面NSの曲率半径R(mm)、各レンズ中心厚及びレンズの空気間隔D(mm)、各レンズのd線における屈折率Nd及びアッベ数ABVの値を以下に示す。 Image stabilization zoom lens of the third embodiment of the present invention, a positive first lens group LG1, a negative second lens group LG2, a positive third lens group LG3, and a positive fourth lens group LG4, each lens the radius of curvature R of the surface NS (mm), an air spacing D of each lens center thickness and lens (mm), indicating the value of the refractive index Nd and the Abbe number ABV of each lens at d-line below.
NS RD Nd ABV NS RD Nd ABV
1 225.0268 1.5000 1.92286 20.88 1 225.0268 1.5000 1.92286 20.88
2 99.4457 7.0000 1.77250 49.62 2 99.4457 7.0000 1.77250 49.62
3 346.0720 0.2000 3 346.0720 0.2000
4 55.9284 8.0000 1.72916 54.67 4 55.9284 8.0000 1.72916 54.67
5 162.0901 D( 5) 5 162.0901 D (5)
6 ASPH 1000.0000 0.2000 1.51409 49.72 6 ASPH 1000.0000 0.2000 1.51409 49.72
7 150.0000 1.0000 1.80400 46.57 7 150.0000 1.0000 1.80400 46.57
8 18.0777 7.5702 8 18.0777 7.5702
9 510.3727 0.8000 1.77250 49.62 9 510.3727 0.8000 1.77250 49.62
10 27.7062 4.2000 1.90366 31.32 10 27.7062 4.2000 1.90366 31.32
11 121.4131 3.8000 11 121.4131 3.8000
12 ASPH -22.0943 1.0000 1.58313 59.46 12 ASPH -22.0943 1.0000 1.58313 59.46
13 54.7665 3.0000 1.90366 31.32 13 54.7665 3.0000 1.90366 31.32
14 -68.5400 D(14) 14 -68.5400 D (14)
15 STOP INF 1.0000 15 STOP INF 1.0000
16 ASPH 32.7486 0.3500 1.51409 49.72 16 ASPH 32.7486 0.3500 1.51409 49.72
17 35.0000 5.0000 1.48749 70.24 17 35.0000 5.0000 1.48749 70.24
18 -37.6072 3.0000 18 -37.6072 3.0000
19 -123.3617 4.0000 1.49700 81.55 19 -123.3617 4.0000 1.49700 81.55
20 -40.9128 3.0000 20 -40.9128 3.0000
21 ASPH -48.4806 0.8000 1.62263 58.16 21 ASPH -48.4806 0.8000 1.62263 58.16
22 70.6648 2.0000 1.84666 23.78 22 70.6648 2.0000 1.84666 23.78
23 61.6827 1.5000 23 61.6827 1.5000
24 45.8636 6.0000 1.49700 81.55 24 45.8636 6.0000 1.49700 81.55
25 -40.1696 0.8000 1.72825 28.32 25 -40.1696 0.8000 1.72825 28.32
26 233.5844 D(26) 26 233.5844 D (26)
27 36.3963 6.0000 1.49700 81.55 27 36.3963 6.0000 1.49700 81.55
28 -102.8223 0.1000 28 -102.8223 0.1000
29 70.1580 5.0000 1.71300 53.94 29 70.1580 5.0000 1.71300 53.94
30 66.7691 2.0000 30 66.7691 2.0000
31 ASPH -423.0056 1.7000 1.82080 42.71 31 ASPH -423.0056 1.7000 1.82080 42.71
32 ASPH 476.0939 2.0000 32 ASPH 476.0939 2.0000
33 -320.8170 4.0000 1.74330 49.22 33 -320.8170 4.0000 1.74330 49.22
34 -64.9235 D(34) 34 -64.9235 D (34)
35 INF 2.0000 1.51633 64.14 35 INF 2.0000 1.51633 64.14

非球面係数の値は、以下のとおりである。 The value of the aspheric coefficient is as follows.
ASPH κ A 46810 ASPH κ A 4 A 6 A 8 A 10
6 1.0000 1.28351E-005 -4.49291E-008 2.14600E-010 -5.50852E-013 6 1.0000 1.28351E-005 -4.49291E-008 2.14600E-010 -5.50852E-013
12 1.1025 7.92379E-007 -1.71997E-008 -6.00310E-010 8.90481E-012 12 1.1025 7.92379E-007 -1.71997E-008 -6.00310E-010 8.90481E-012
16 -0.8879 -8.63391E-006 2.69462E-008 -9.01939E-011 -5.13682E-013 16 -0.8879 -8.63391E-006 2.69462E-008 -9.01939E-011 -5.13682E-013
21 1.0000 3.75402E-006 -1.74418E-008 3.20941E-010 -5.00000E-013 21 1.0000 3.75402E-006 -1.74418E-008 3.20941E-010 -5.00000E-013
31 1.0000 -4.29111E-006 5.46940E-010 5.44506E-011 -1.50000E-013 31 1.0000 -4.29111E-006 5.46940E-010 5.44506E-011 -1.50000E-013
32 1.0000 7.77216E-006 -1.72772E-009 1.05976E-010 -2.43316E-013 32 1.0000 7.77216E-006 -1.72772E-009 1.05976E-010 -2.43316E-013

非球面係数の値は、以下のとおりである。 The value of the aspheric coefficient is as follows.
ASPH A 12 ASPH A 12
6 6.10862E-016 6 6.10862E-016
12 -4.68955E-014 12 -4.68955E-014
16 -5.27721E-015 16 -5.27721E-015
21 1.81374E-015 21 1.81374E-015
31 5.17611E-017 31 5.17611E-017
32 1.87768E-016 32 1.87768E-016

ズーム作動の各焦点距離 F(mm)におけるレンズ間隔の変化は、以下の通りである。 Changes in lens distance at each focal length F (mm) of the zoom operation is as follows.
F 23.8334 37.2362 65.5157 F 23.8334 37.2362 65.5157
D( 5) 4.0884 18.0000 35.0000 D (5) 4.0884 18.0000 35.0000
D(14) 20.8266 11.1313 2.3926 D (14) 20.8266 11.1313 2.3926
D(26) 5.1400 2.6000 1.6949 D (26) 5.1400 2.6000 1.6949
D(34) 32.0120 40.7710 51.4620 D (34) 32.0120 40.7710 51.4620

条件式の値は、以下の通りである。 The value of the conditional expression is as follows.
条件式(1) (F12W×F12T)/(F34W×F34T)=0.975 Condition (1) (F12W × F12T) / (F34W × F34T) = 0.975
条件式(2) |BX1/F3|=0.827 Conditional expression (2) | BX1 / F3 | = 0.827
条件式(3) BX1=-42.147 The conditional expression (3) BX1 = -42.147
条件式(4) F3=50.988 Conditional expression (4) F3 = 50.988
条件式(5) ST_W/Fw=3.605 Conditional expression (5) ST_W / Fw = 3.605
条件式(6) F3/F4=1.159 Conditional expression (6) F3 / F4 = 1.159
条件式(7) |BX1/F34T|=1.221 Conditional expression (7) | BX1 / F34T | = 1.221

S 絞り S aperture
GL1 第1レンズ群 GL1 first lens group
GL2 第2レンズ群 GL2 second lens group
GL3 第3レンズ群 GL3 third lens group
GL4 第4レンズ群1 第1面2 第2面3 第3面4 第4面5 第5面6 第6面7 第7面8 第8面9 第9面10 第10面11 第11面12 第12面13 第13面14 第14面15 第15面16 第16面17 第17面18 第18面19 第19面20 第20面21 第21面22 第22面23 第23面24 第24面25 第25面25 第25面26 第26面27 第27面28 第28面29 第29面30 第30面31 第31面32 第32面33 第33面34 第34面35 第35面 GL4 fourth lens unit 1 first surface 2 a second surface 3 third surface 4 fourth surface 5 fifth surface 6 sixth surface 7 seventh surface 8 eighth surface 9 ninth surface 10 tenth surface 11 eleventh surface 12 twelfth surface 13 13th surface 14 14th surface 15 15th surface 16 surface No. 16 17 17 surface 18 18th surface 19 the nineteenth surface 20 20th surface 21 21 surface 22 22nd surface 23 23rd surface 24 24 surface 25 25 surface 25 25th surface 26 26th surface 27 27th surface 28 28th surface 29 29th surface 30 30th surface 31 31 surface 32 32 surface 33 33 surface 34 34th surface 35 35 surface

Claims (3)

  1. 被写体側から、正の第1レンズ群、負の第2レンズ群、正の第3レンズ群、正の第4レンズ群からなり、 From the object side, a positive first lens group, a negative second lens group, a positive third lens group and a positive fourth lens group,
    広角端から望遠端への変倍時に第1レンズ群と第2レンズ群の間隔が広がり、第2レンズ群と第3レンズ群の間隔が狭まり、第3レンズ群と第4レンズ群の間隔が狭まるように移動し、 The wide-angle end distance between the first lens group and the second lens group spread at the time of zooming to the telephoto end from narrowing the interval between the second lens group and the third lens group, and a third lens group spacing of the fourth lens group move so narrow,
    前記第3レンズ群は、物体側から順に、正の第3前レンズ群と、負の第3中レンズ群と、正の第3後レンズ群からなり、 The third lens group includes, in order from the object side, a positive third front lens group, becomes a negative third in the lens group, a positive third back lens group,
    手振れ補正を第3中レンズ群を光軸と垂直の方向へ移動させることで行い、下記の条件式(1)を満足し Performs shake correction by moving the third in the lens group perpendicular to the optical axis direction, satisfies the following conditional expression (1)
    0.7<(F12W×F12T)/(F34W×F34T)<1.2 ・・・・(1) 0.7 <(F12W × F12T) / (F34W × F34T) <1.2 ···· (1)
    但し F12W: 広角端での第1レンズ群と第2レンズ群の合成焦点距離 However F12W: the first lens unit at the wide angle end and the composite focal length of the second lens group
    F12T: 望遠端での第1レンズ群と第2レンズ群の合成焦点距離 F12T: the first lens group at the telephoto end and the composite focal length of the second lens group
    F 34 T: 望遠端での第3レンズ群と第4レンズ群の合成焦点距離 F 34 T: the third lens group at the telephoto end and the composite focal length of the fourth lens group
    また下記の条件式(2)〜(4)を満足し In addition to satisfying the following conditional expression (2) to (4)
    0.5<|BX1/F3|<0.9 ・・・・(2) 0.5 <| BX1 / F3 | < 0.9 ···· (2)
    BX1<0 ・・・・(3) BX1 <0 ···· (3)
    F3>0 ・・・・(4) F3> 0 ···· (4)
    但し BX1; 防振群(第3中群)の焦点距離 However BX1; focal length of the vibration-proof group (third intermediate lens group)
    F3 ; 第3群の焦点距離 F3; focal length of the third group
    さらに下記の条件式(5)を満足する To satisfy further the following conditional expression (5)
    3.2<ST_W/Fw<4 ・・・・(5) 3.2 <ST_W / Fw <4 ···· (5)
    但し ST_W: 広角端で絞りと結像面の距離 However ST_W: Distance aperture at the wide-angle end and the imaging plane
    FW : 広角端の全系焦点距離 FW: focal length of the wide-angle end
    ことを特徴とする手振れ補正ズームレンズ。 Image stabilization zoom lens, characterized in that.
  2. 請求項1に記載の手振れ補正ズームレンズおいて、さらに下記の条件式(6)を満足することを特徴とする手振れ補正ズームレンズ。 Keep image stabilization zoom lens according to claim 1, image stabilization zoom lens, characterized by further satisfying the following conditional expression (6).
    1.0<F3/F4<1.8 ・・・・(6) 1.0 <F3 / F4 <1.8 ···· (6)
    但し F3: 第3レンズ群の焦点距離。 However F3: a focal length of the third lens group.
    F4: 第4レンズ群の焦点距離 F4: a focal length of the fourth lens group
  3. 請求項2に記載の手振れ補正ズームレンズおいて、さらに下記の条件式(7)を満足することを特徴とする手振れ補正ズームレンズ。 Keep image stabilization zoom lens according to claim 2, image stabilization zoom lens, characterized by further satisfying the following conditional expression (7).
    0.9 <|BX1/F34T|< 1.3 ・・・・(7) 0.9 <| BX1 / F34T | <1.3 ···· (7)
    但し BX1 : 第3中レンズ群の焦点距離。 However BX1: focal length of the third in the lens group.
    F34T: 望遠端での第3レンズ群と第4レンズ群の合成焦点距離 F34T: third lens group at the telephoto end and the composite focal length of the fourth lens group
JP2011184438A 2011-08-26 2011-08-26 The camera shake correction zoom lens Active JP5722730B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2011184438A JP5722730B2 (en) 2011-08-26 2011-08-26 The camera shake correction zoom lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011184438A JP5722730B2 (en) 2011-08-26 2011-08-26 The camera shake correction zoom lens

Publications (2)

Publication Number Publication Date
JP2013045039A true JP2013045039A (en) 2013-03-04
JP5722730B2 true JP5722730B2 (en) 2015-05-27

Family

ID=48008968

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011184438A Active JP5722730B2 (en) 2011-08-26 2011-08-26 The camera shake correction zoom lens

Country Status (1)

Country Link
JP (1) JP5722730B2 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4146977B2 (en) * 1999-12-10 2008-09-10 キヤノン株式会社 Zoom lens
JP2005148437A (en) * 2003-11-17 2005-06-09 Fujinon Corp Variable power optical system
JP4949897B2 (en) * 2007-03-09 2012-06-13 富士フイルム株式会社 Stabilization function with a zoom lens and an imaging apparatus
JP5426353B2 (en) * 2009-12-17 2014-02-26 株式会社シグマ Zoom lens system with a vibration reduction function

Also Published As

Publication number Publication date Type
JP2013045039A (en) 2013-03-04 application

Similar Documents

Publication Publication Date Title
JP2008216440A (en) Zoom lens with image stabilization function
JP2006208890A (en) Zoom lens and imaging apparatus having the same
US7187504B2 (en) Zoom lens and image pick up apparatus including the same
JP2007219315A (en) Zoom lens with vibration proof function and imaging apparatus equipped with the same
JP2006106191A (en) Zoom lens with vibration-proof function
JP2007279147A (en) Variable power optical system and imaging apparatus
JP2009156893A (en) Variable power optical system, optical equipment equipped with variable power optical system and variable power method for variable power optical system
JP2007264173A (en) Imaging optical system and imaging apparatus
JP2009048012A (en) Optical system
JP2006221092A (en) Zoom lens with vibration-proof function
JP2011247962A (en) High variable power zoom lens
JP2009086535A (en) Zoom lens and optical apparatus equipped with the same
JP2010044228A (en) Zoom lens system, optical equipment having same, and variable magnification method using same
JP2003050350A (en) Zoom lens and optical equipment
JP2009014767A (en) Variable power optical system, optical equipment and variable power method for variable power optical system
JP2008129076A (en) Zoom lens and imaging apparatus having same
JP2008003511A (en) Zoom lens with vibration-proof function, imaging apparatus, vibration preventing method for zoom lens, and power varying method for zoom lens
JP2010044225A (en) Zoom lens system, optical equipment having same, and variable magnification method using same
JP2011039091A (en) Zoom lens and imaging apparatus including the same
US20080062532A1 (en) Zoom lens and image pickup apparatus
JP2004145304A (en) Large aperture ratio internal focusing telephotographic zoom lens
JP2012118097A (en) Large-aperture telephoto zoom lens having vibration control function
JP2006023679A (en) Zoom lens and image pickup device equipped with same
JP2009086537A (en) Zoom lens and optical apparatus equipped with the same
JP2007140359A (en) Zoom lens and imaging apparatus equipped with the same

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20140425

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20141217

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20141224

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20150220

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: 20150309

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20150326

R150 Certificate of patent or registration of utility model

Ref document number: 5722730

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250