WO2010090281A1 - マクロレンズ - Google Patents
マクロレンズ Download PDFInfo
- Publication number
- WO2010090281A1 WO2010090281A1 PCT/JP2010/051698 JP2010051698W WO2010090281A1 WO 2010090281 A1 WO2010090281 A1 WO 2010090281A1 JP 2010051698 W JP2010051698 W JP 2010051698W WO 2010090281 A1 WO2010090281 A1 WO 2010090281A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lens
- lens group
- positive
- group
- refractive power
- Prior art date
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
- G02B15/144—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 four groups only
- G02B15/1441—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 four groups only the first group being positive
- G02B15/144105—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 four groups only the first group being positive arranged +-+-
Definitions
- the present invention relates to a macro lens, and more particularly, to a macro lens that can be photographed at a wide range of object distances from an infinite object to a photographing magnification of the same magnification in a photographic camera, a video camera, an electronic still camera, and the like.
- the conventional macro lens focusing method is a front lens feeding method that moves the lens unit closest to the object side for focusing, and an inner focus method that moves the lens unit other than the lens unit closest to the object side for focusing. It has been known.
- the front lens payout system moves the largest and heaviest lens group closest to the object for focusing. Accordingly, in a lens combining a front lens feeding type macro lens and an autofocus mechanism, there is a limit to the autofocus driving force, and the front lens feeding type macro lens has a problem that rapid focusing is difficult.
- the inner focus method is suitable for performing quick focusing because a relatively light lens group other than the lens group closest to the object side is moved for focusing.
- the inner focus method has a problem that the aberration variation with respect to the change in the object distance, particularly the spherical aberration variation, is larger than the front lens feeding method. This tendency becomes more prominent as the aperture ratio becomes larger.
- the conventional inner focus type macro lens has an F number of about 2.8 or more.
- the macro lens disclosed in Patent Document 1 capable of shooting magnification up to the same magnification has four lens groups, the principal point distance between the first lens group and the second lens group is negative, and a short distance from an infinite object.
- the first lens group is fixed, the second lens group is moved to the image side, and the third lens group is moved to the object side to perform floating.
- the focal length is 50.0 to 60.0 mm, and the F number is 2.8 to 2.9.
- the macro lens of Patent Document 2 capable of shooting magnification up to the same magnification is, in order from the object side, a first lens group having a positive power, a second lens group having a negative power, a third lens group having a positive power,
- the fourth lens unit has a negative power, and when focusing from infinity to the closest distance, the first lens unit is fixed, the second lens unit is moved to the image side, and the third lens unit is moved to the object side. It is a photographic lens that moves and satisfies the following conditional expressions simultaneously.
- the macro lens of Patent Document 3 capable of shooting magnification up to the same magnification is, in order from the object side, a positive first lens group, a negative second lens group, a positive third lens group, and a negative fourth lens group.
- the telephoto macro lens system in which the second lens group moves to the image side and the third lens group moves to the object side during focusing from the infinity shooting distance to the shortest shooting distance, the following conditional expression (1 Telephoto macro lens system that satisfies).
- the above-described conventional inner focus type macro lens has excellent spherical aberration, astigmatism, and coma aberration over the entire range from infinity to the same magnification when taking an F-number of 2.5 or less. It becomes difficult to correct.
- the present invention includes, in order from the object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, and a rear lens system behind the third lens group.
- An inner focus type macro lens that fixes the first lens group during focusing from infinity to a short distance, moves the second lens group to the image side, and moves the third lens group to the object side
- the first lens group is an inner focus type macro lens including at least four positive lenses and one negative lens, and three object side lenses in the first lens group are positive lenses.
- the inner focus type macro lens of the present invention has a large aperture of F number of 2.5 or less, yet maintains compactness, and aberration variation over the entire range from infinity to photographic magnification, especially spherical aberration. This has the effect that a macro lens with reduced fluctuations can be configured.
- spherical aberration tends to be under when focusing from an object at infinity to a short distance. This is because the axial luminous flux incident on the first lens group is rapidly converged by the positive lens of the first lens group, particularly in a lens with a short minimum shooting distance such as a macro lens during short-distance focusing. It is.
- the larger the aperture lens as in the present embodiment the larger the spherical aberration with respect to the variation of the object distance.
- the first lens group includes at least four positive lenses and one negative lens, and three object-side lenses in the first lens group are constituted by positive lenses, so that near-field focusing is performed.
- the optical system is made compact by reducing the tendency of the spherical aberration to be reduced and converging a light beam having a large aperture ratio with an F number of 2.5 or less.
- the first lens group includes at least one negative lens, and aberrations generated by the positive lens in the first lens group are corrected well. Further, when focusing from an infinite object to a short distance, the first lens group is fixed, the second lens group is moved to the image side, and the third lens group is moved to the object side, so that the entire object distance can be obtained.
- An inner focus type macro lens in which spherical aberration, astigmatism and coma are corrected well is constructed.
- Embodiments of the present invention are as follows.
- (A) The rear lens system has a negative refractive power. With this configuration, it is possible to obtain the effect of reducing the overall lens length and the effect of reducing the amount of focus movement of the third lens group.
- the third lens group includes a third lens front small group (L3A) having a positive refractive power and a third lens rear small group (L3B) having a positive refractive power.
- L3A third lens front small group
- L3B third lens rear small group
- the third lens rear small group (L3B) moves relative to the third lens front small group (L3A) so as to have a convex locus on the image side.
- the first lens group includes at least one cemented lens of a biconvex positive lens and a biconcave negative lens, and satisfies the following condition.
- Expression macro lens 0.2 ⁇
- Nd1 is the refractive index of the positive lens of the cemented lens
- Nd2 is the refractive index of the negative lens of the cemented lens
- ⁇ d1 is the Abbe number of the positive lens of the cemented lens
- ⁇ d2 is the Abbe number of the negative lens of the cemented lens. Show.
- the most object side in the third lens group is a positive lens.
- EPH represents the entrance pupil radius
- Y represents the image circle radius
- the lateral chromatic aberration indicates the aberration at the g-line
- the other chromatic aberrations indicate the aberration at the d-line.
- the solid line represents a sagittal ray
- the broken line represents a meridional ray.
- the unit of length is mm.
- Spherical aberration, astigmatism and lateral chromatic aberration are expressed in mm, and distortion is expressed in%.
- FIG. 6 is various aberration diagrams when the photographing distance of the inner focus type macro lens of the first embodiment is infinite.
- FIG. 5 is a diagram illustrating various aberrations of the inner focus macro lens of the first embodiment at a photographing magnification of 5 times.
- FIG. 5 is a diagram illustrating various aberrations at the same magnification of an imaging magnification of the inner focus type macro lens of the first embodiment.
- (A) shows a state where the shooting distance is infinite.
- FIG. 9 is a diagram illustrating various aberrations when the shooting distance of the inner focus type macro lens of the second embodiment is infinity.
- FIG. 10 is a diagram illustrating various aberrations at the same magnification of an imaging magnification of the inner focus type macro lens of the second embodiment. It is an optical sectional view of the inner focus type macro lens of a 3rd embodiment.
- (A) shows a state where the shooting distance is infinite.
- (B) shows a state where the photographing magnification is equal.
- FIG. 11 is a diagram illustrating various aberrations when the shooting distance of the inner focus macro lens of the third embodiment is infinity.
- FIG. 12 is a diagram illustrating various aberrations of the inner focus macro lens of the third embodiment at a photographing magnification of 5 times.
- FIG. 11 is a diagram illustrating various aberrations of the inner focus macro lens of the third embodiment at the same magnification.
- f is the focal length
- Fno is the F number
- 2 ⁇ is the angle of view (°)
- NO is the surface number
- R is the radius of curvature
- D is the interval
- Nd and ⁇ d are the refractive index and Abbe respectively for the d line. Represents a number.
- the unit of length is mm, but any unit can be used.
- 0.276 Conditional expression (3)
- 0.012 Conditional expression (3)
- 0.276 Conditional expression (3)
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
Description
0.58<sk/f<0.70
0.65<f34/f<0.72
sk・・・無限遠から至近までの最短のバックフォーカス
f・・・全系の焦点距離
f34・・・第3レンズ群と第4レンズ群の合成焦点距離。焦点距離は62.4mm、Fナンバーが2.9である。
(1)3.7<|f×m/ΔX3|<9.9
但し、f:無限遠撮影時における全系の焦点距離、m:最短かつ-1倍撮影時における横倍率、ΔX3:第3レンズ群の無限遠撮影位置から最短撮影位置への全移動量である。焦点距離は200mm、Fナンバーは4.0である。
該第1レンズ群は、少なくとも正レンズを4枚、負レンズを1枚含み、第1レンズ群のうち物体側3枚は正レンズであることを特徴とするインナーフォーカス式マクロレンズである。
(A)前記後方レンズ系が、負の屈折力を有することを特徴とする。このように構成することにより、レンズ全長をコンパクトにする効果と、前記第3レンズ群のフォーカス移動量を小さくできる効果を得ることができる。
このように構成することにより、中間距離フォーカシングの際の球面収差を良好に補正している。
0.5 ≦ f1/f ≦ 0.8 ・・・・・・・・・・ (1)
なる条件を満足することを特徴とする。
インナーフォーカス式マクロレンズのコンパクト化と近距離時の球面収差、コマ収差、歪曲収差を良好に補正するための条件である。式(1)の下限値を超えると、光学系のコンパクト化には有利だが、球面収差補正が困難になる。式(1)の上限値を超えると、球面収差補正には有利だが、コンパクト化が困難になる。
0.2 ≦ | Nd2 - Nd1 | ・・・・・・・・・・ (2)
35 ≦ | νd1 - νd2 |・・・・・・・・・・ (3)
ただし、Nd1は該接合レンズの正レンズの屈折率、Nd2は該接合レンズの負レンズの屈折率、νd1は該接合レンズの正レンズのアッベ数、νd2は該接合レンズの負レンズのアッベ数を示す。
第1レンズ群で発生する球面収差、軸上色収差、倍率色収差を良好に補正するための条件である。式(2)の下限を超えると、近距離物体に対する球面収差がアンダーになり、補正が困難になる問題が発生する。また、色収差の補正が困難になる問題も発生する。式(3)の下限を超えると、色収差の補正が困難になる問題が発生する。
(a)第4レンズ群は、無限遠から近距離へのフォーカシングに際し、固定とすることを特徴とする。このように構成することによって、鏡筒構造を簡素化できる。
-0.5 ≦ f2/f ≦ -0.3 ・・・・・・・・ (4)
なる条件を満足することを特徴とする。
式(4)の下限を超えると、収差補正には有利だが、フォーカシング時の移動量が大きくなり、光学系のコンパクト化が困難になるという問題が発生する。式(4)の上限を超えることによって、フォーカシング時の移動量を小さくできるが、第2レンズ群を通過した光線が発散光となり、第3レンズ群の大型化を招く。また、第1ンズ群で発生する収差を良好に補正することが困難になるという問題が発生する。
∞ -5倍 -1倍
f 61.5000 65.1885 52.3578
FNo. 2.06 2.46 4.10
D(9) 1.5848 4.6948 17.4252
D(14) 17.2873 14.1774 1.4470
D(15) 13.2179 10.5905 1.5000
D(22) 1.8205 4.4479 13.5384
条件式(1) f1/f=0.65
条件式(2) | Nd1 - Nd2 |=0.276
条件式(3) | νd1 - νd2 |=54.1
条件式(4) f2/f=-0.40
∞ -1倍
f 61.5000 55.2183
FNo. 2.06 4.10
D(9) 1.0000 19.4981
D(17) 19.8528 1.3546
D(18) 7.6500 1.5000
D(25) 1.0037 7.1537
条件式(1) f1/f=0.65
条件式(2) | Nd1 - Nd2 |=0.012
条件式(3) | νd1 - νd2 |=23.9
条件式(4) f2/f=-0.35
∞ -5倍 -1倍
f 61.5000 65.4478 52.0543
FNo. 2.06 2.46 4.10
D(9) 1.4753 4.6241 17.4561
D(14) 17.3917 14.2429 1.4109
D(15) 13.0541 9.8539 1.5000
D(20) 1.8367 2.4671 1.5247
D(22) 1.6322 4.2020 13.4983
条件式(1) f1/f=0.66
条件式(2) | Nd1 - Nd2 |=0.276
条件式(3) | νd1 - νd2 |=54.1
条件式(4) f2/f=-0.40
L2 第2レンズ群
L3 第3レンズ群
L3A 第3レンズ前小群
L3B 第3レンズ後小群
L4 後方レンズ系
ST 開口絞り
IP 像面
Claims (5)
- 物体側から順に、正の屈折力の第1レンズ群、負の屈折力の第2レンズ群、正の屈折力の第3レンズ群、第3レンズ群の後方の後方レンズ系を有し、無限遠から近距離へのフォーカシングに際し第1レンズ群を固定とし、第2レンズ群を像側へ移動させ、第3レンズ群を物体側へ移動させるインナーフォーカス式マクロレンズであって、
該第1レンズ群は、少なくとも正レンズを4枚、負レンズを1枚含み、第1レンズ群のうち物体側3枚は正レンズであることを特徴とするインナーフォーカス式マクロレンズ。 - 前記後方レンズ系が、負の屈折力を有することを特徴とする請求項1に記載のインナーフォーカス式マクロレンズ。
- 前記第3レンズ群が、正の屈折力を有する第3レンズ前小群(L3A)と正の屈折力を有する第3レンズ後小群(L3B)とを有し、無限遠から近距離へのフォーカシングに際し、前記第3レンズ後小群(L3B)は前記第3レンズ前小群(L3A)に対して像側に凸状の軌跡をとるように移動することを特徴とする請求項1又は2に記載のインナーフォーカス式マクロレンズ。
- 全系の焦点距離をf、前記第1レンズ群の焦点距離をf1とするとき、
0.5 ≦ f1/f ≦ 0.8 ・・・・・・・(1)
なる条件を満足することを特徴とする請求項1ないし3のいずれか一項に記載のインナーフォーカス式マクロレンズ。 - 前記第1レンズ群は両凸の正レンズと両凹の負レンズとの接合レンズを1枚以上を有し、以下の条件を満足することを特徴とする請求項2ないし4のいずれか一項にインナーフォーカス式マクロレンズ。
0.2 ≦ | Nd2 - Nd1 | ・・・・・(2)
35 ≦ | νd1 - νd2 | ・・・・・(3)
ただし、Nd1は該接合レンズの正レンズの屈折率、Nd2は該接合レンズの負レンズの屈折率、νdは該接合レンズの正レンズのアッベ数、νd2は該接合レンズの負レンズのアッベ数を示す。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/147,270 US8305692B2 (en) | 2009-02-05 | 2010-02-05 | Macro lens |
CN2010800067158A CN102308243A (zh) | 2009-02-05 | 2010-02-05 | 微距镜头 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009025033A JP5315562B2 (ja) | 2009-02-05 | 2009-02-05 | マクロレンズ |
JP2009-025033 | 2009-02-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010090281A1 true WO2010090281A1 (ja) | 2010-08-12 |
Family
ID=42542173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/051698 WO2010090281A1 (ja) | 2009-02-05 | 2010-02-05 | マクロレンズ |
Country Status (4)
Country | Link |
---|---|
US (1) | US8305692B2 (ja) |
JP (1) | JP5315562B2 (ja) |
CN (1) | CN102308243A (ja) |
WO (1) | WO2010090281A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103163635A (zh) * | 2011-12-12 | 2013-06-19 | 株式会社腾龙 | 摄像镜头 |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8238044B2 (en) * | 2009-11-07 | 2012-08-07 | Nikon Corporation | Imaging lens, imaging apparatus, and method for manufacturing imaging lens |
JP5675397B2 (ja) | 2010-02-16 | 2015-02-25 | キヤノン株式会社 | 光学系および光学機器 |
KR101676787B1 (ko) * | 2010-09-27 | 2016-11-17 | 삼성전자주식회사 | 접사 렌즈계 및 이를 구비한 촬상 장치 |
JP5693321B2 (ja) * | 2011-03-28 | 2015-04-01 | キヤノン株式会社 | ズームレンズ及び撮像装置 |
JP5786265B2 (ja) * | 2011-12-12 | 2015-09-30 | 株式会社タムロン | 撮影レンズ |
JP6150047B2 (ja) * | 2012-07-20 | 2017-06-21 | パナソニックIpマネジメント株式会社 | インナーフォーカスレンズ系、交換レンズ装置及びカメラシステム |
JP6210208B2 (ja) * | 2012-12-27 | 2017-10-11 | パナソニックIpマネジメント株式会社 | インナーフォーカスレンズ系、交換レンズ装置及びカメラシステム |
JP6253437B2 (ja) * | 2014-02-14 | 2017-12-27 | キヤノン株式会社 | 結像光学系及びそれを有する画像投射装置 |
CN105093504A (zh) * | 2015-06-30 | 2015-11-25 | 深圳海偲科技有限公司 | 一种微距镜头 |
JP6665615B2 (ja) * | 2016-03-22 | 2020-03-13 | 株式会社シグマ | 大口径望遠レンズ |
JP6559104B2 (ja) * | 2016-08-23 | 2019-08-14 | 富士フイルム株式会社 | 撮像レンズおよび撮像装置 |
JP6689768B2 (ja) * | 2017-02-28 | 2020-04-28 | 富士フイルム株式会社 | 撮像レンズおよび撮像装置 |
JP2019179206A (ja) * | 2018-03-30 | 2019-10-17 | キヤノン株式会社 | ズームレンズ及び撮像装置 |
CN109856787B (zh) * | 2018-12-28 | 2023-10-20 | 安徽长庚光学科技有限公司 | 变焦镜头 |
JP7166980B2 (ja) * | 2019-04-12 | 2022-11-08 | キヤノン株式会社 | 光学系およびそれを有する撮像装置 |
WO2021168742A1 (zh) * | 2020-02-27 | 2021-09-02 | 南昌欧菲精密光学制品有限公司 | 变焦光学系统、变焦模组及电子设备 |
JP7399473B2 (ja) | 2020-03-12 | 2023-12-18 | 株式会社シグマ | 結像光学系 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001272601A (ja) * | 2000-03-27 | 2001-10-05 | Canon Inc | 光学系及びそれを用いた光学機器 |
JP2005284101A (ja) * | 2004-03-30 | 2005-10-13 | Nikon Corp | 撮影レンズ |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0644096B2 (ja) * | 1984-06-08 | 1994-06-08 | オリンパス光学工業株式会社 | 小型で高性能な望遠レンズ |
JP3288746B2 (ja) * | 1992-04-16 | 2002-06-04 | 旭光学工業株式会社 | 望遠レンズ |
JP3407421B2 (ja) * | 1994-09-05 | 2003-05-19 | オリンパス光学工業株式会社 | 近距離撮影可能なレンズ |
JP3412964B2 (ja) * | 1995-05-10 | 2003-06-03 | キヤノン株式会社 | 防振機能を有した光学系 |
JP3445095B2 (ja) * | 1997-04-01 | 2003-09-08 | キヤノン株式会社 | ズームレンズ及びそれを有するカメラ |
JP2000214380A (ja) * | 1999-01-22 | 2000-08-04 | Canon Inc | 撮影レンズ |
JP3538341B2 (ja) | 1999-07-02 | 2004-06-14 | ペンタックス株式会社 | 望遠マクロレンズ系 |
JP2004061680A (ja) | 2002-07-26 | 2004-02-26 | Canon Inc | マクロレンズ |
JP4467920B2 (ja) * | 2003-08-08 | 2010-05-26 | キヤノン株式会社 | 撮影レンズ及びそれを有する撮像装置 |
JP2006153942A (ja) | 2004-11-25 | 2006-06-15 | Canon Inc | 撮影レンズ |
-
2009
- 2009-02-05 JP JP2009025033A patent/JP5315562B2/ja active Active
-
2010
- 2010-02-05 US US13/147,270 patent/US8305692B2/en active Active
- 2010-02-05 WO PCT/JP2010/051698 patent/WO2010090281A1/ja active Application Filing
- 2010-02-05 CN CN2010800067158A patent/CN102308243A/zh active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001272601A (ja) * | 2000-03-27 | 2001-10-05 | Canon Inc | 光学系及びそれを用いた光学機器 |
JP2005284101A (ja) * | 2004-03-30 | 2005-10-13 | Nikon Corp | 撮影レンズ |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103163635A (zh) * | 2011-12-12 | 2013-06-19 | 株式会社腾龙 | 摄像镜头 |
US9063253B2 (en) | 2011-12-12 | 2015-06-23 | Tamron Co., Ltd. | Imaging lens |
Also Published As
Publication number | Publication date |
---|---|
CN102308243A (zh) | 2012-01-04 |
JP2010181634A (ja) | 2010-08-19 |
JP5315562B2 (ja) | 2013-10-16 |
US20110286116A1 (en) | 2011-11-24 |
US8305692B2 (en) | 2012-11-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5315562B2 (ja) | マクロレンズ | |
JP5379784B2 (ja) | 固定焦点レンズ | |
US9465203B2 (en) | Zoom lens and image pickup apparatus including the same | |
US9684155B2 (en) | Optical system and image pickup apparatus including the same | |
JP6891078B2 (ja) | 光学系及びそれを有する撮像装置 | |
JP4794915B2 (ja) | ズームレンズおよびそれを有する撮像装置 | |
JP6226611B2 (ja) | ズームレンズ及びそれを有する撮像装置 | |
JP2017223755A (ja) | 撮像光学系 | |
US10495861B2 (en) | Zoom lens and image pickup apparatus | |
JP2005352060A (ja) | 小型の大口径広角レンズおよびこれを備えたカメラ | |
JP2015028530A5 (ja) | ||
JP6253379B2 (ja) | 光学系及びそれを有する撮像装置 | |
JP2018005099A (ja) | 大口径レンズ | |
JP2011145566A (ja) | ズームレンズ及びそれを有する光学機器 | |
JP6546076B2 (ja) | 広角レンズ及び撮像装置 | |
JP5078498B2 (ja) | ズームレンズ及びそれを有する撮像装置 | |
JP2007271752A (ja) | マクロレンズ、光学装置、マクロレンズの合焦方法 | |
JP6108733B2 (ja) | ズームレンズ及びそれを有する撮像装置 | |
JP2017026976A (ja) | ズームレンズ及びそれを有する撮像装置 | |
JP6665615B2 (ja) | 大口径望遠レンズ | |
JP2019194630A (ja) | 光学系及びそれを有する撮像装置 | |
JP5137715B2 (ja) | テレコンバータレンズ及びそれを有する撮像装置 | |
JP5058634B2 (ja) | ズームレンズ及びそれを有する撮像装置 | |
JP2013054191A (ja) | ズームレンズ | |
JP5854944B2 (ja) | インナーフォーカス式レンズ |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201080006715.8 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10738612 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13147270 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 10738612 Country of ref document: EP Kind code of ref document: A1 |