JP7134757B2 - Zoom lens and imaging device - Google Patents

Zoom lens and imaging device Download PDF

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JP7134757B2
JP7134757B2 JP2018133160A JP2018133160A JP7134757B2 JP 7134757 B2 JP7134757 B2 JP 7134757B2 JP 2018133160 A JP2018133160 A JP 2018133160A JP 2018133160 A JP2018133160 A JP 2018133160A JP 7134757 B2 JP7134757 B2 JP 7134757B2
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lens
lens group
zoom
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zoom lens
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JP2020012871A (en
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浩 入山
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Canon Inc
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    • 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
    • G02B15/145—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 five groups only
    • G02B15/1451—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 five groups only the first group being positive
    • G02B15/145121—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 five groups only the first group being positive arranged +-+-+
    • 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
    • G02B15/144109—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 +--+
    • 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
    • G02B15/144113—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 +-++
    • 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
    • G02B15/145—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 five groups only
    • G02B15/1451—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 five groups only the first group being positive
    • G02B15/145129—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 five groups only the first group being positive arranged +-+++

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  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Description

本発明は、ズームレンズおよび撮像装置に関するものである。 The present invention relates to zoom lenses and imaging devices.

例えば、スチルカメラ、ビデオカメラ、テレビカメラ、シネマカメラおよび監視カメラ等のカメラ（撮像装置）の高機能化にともない、それに用いるズームレンズには、高変倍比、大口径比、および高い光学性能が求められている。特に、プロフェッショナル・ユースのためのテレビカメラや映画用カメラにおけるＣＣＤやＣＭＯＳデバイス等の撮像デバイスは、撮像範囲全体にわたる解像力の均一性に優れている。それゆえ、ズームレンズには、その像面における解像力の均一性や色収差の少なさが要求されている。 For example, as cameras (imaging devices) such as still cameras, video cameras, television cameras, cinema cameras, and surveillance cameras become more sophisticated, the zoom lenses used for them require a high zoom ratio, a large aperture ratio, and high optical performance. is required. In particular, imaging devices such as CCDs and CMOS devices in television cameras for professional use and movie cameras are excellent in resolving power uniformity over the entire imaging range. Therefore, the zoom lens is required to have uniform resolving power and little chromatic aberration on its image plane.

物体側から像側へ順に、変倍のためには移動しない正の屈折力のレンズ群と、変倍のために移動する負の屈折力のレンズ群と、変倍のために移動するレンズ群を含む後群とを含む所謂ポジティブリード型のズームレンズが知られている（特許文献１）。第１レンズ群が正の屈折力を有するポジティブリード型のズームレンズは、第１レンズ群が負の屈折力を有するネガティブリード型のズームレンズに比して、高変倍比化に有利である。 In order from the object side to the image side, a lens group with positive refractive power that does not move for zooming, a lens group with negative refractive power that moves for zooming, and a lens group that moves for zooming. A so-called positive lead type zoom lens including a rear group including a is known (Patent Document 1). A positive lead type zoom lens in which the first lens group has positive refractive power is more advantageous than a negative lead type zoom lens in which the first lens group has negative refractive power in achieving a high zoom ratio. .

特開２０１６－４５３０９号公報JP 2016-45309 A

高い変倍比および高い光学性能を有するズームレンズは、全変倍範囲において軸上色収差と倍率色収差とがバランスよく補正されている必要がある。しかしながら、小型化のためにレンズの枚数を少なくしつつ各レンズ群の屈折力を強めると、諸収差が増大し、高い光学性能を得るのが困難となる。広画角および高変倍比を達成しようとすると、全変倍範囲における軸上色収差および倍率色収差の十分な補正は困難であった。本発明は、例えば、広画角、高変倍比、および全変倍範囲にわたる高い光学性能の点で有利なズームレンズを提供することを目的とする。 A zoom lens with a high zoom ratio and high optical performance needs to be corrected for axial chromatic aberration and lateral chromatic aberration in a well-balanced manner over the entire zoom range. However, increasing the refractive power of each lens group while reducing the number of lenses for miniaturization increases various aberrations, making it difficult to obtain high optical performance. When attempting to achieve a wide angle of view and a high zoom ratio, it has been difficult to sufficiently correct axial chromatic aberration and lateral chromatic aberration over the entire zoom range. An object of the present invention is to provide a zoom lens that is advantageous in terms of, for example, a wide angle of view, a high zoom ratio, and high optical performance over the entire zoom range.

本発明の一つの側面は、物体側から像側へ順に、
正の屈折力を有する第１レンズ群と、
負の屈折力を有するレンズ群を含み、広角端から望遠端への変倍に際して、物体側へ移動することなく像側へ移動する１つまたは２つのレンズ群からなる第２群と、
広角端から望遠端への変倍に際して物体側へ移動するレンズ群とを含み、
隣り合うレンズ群の各組は、変倍のために間隔が変化し、
前記第２群に含まれる負レンズＧ２ｎのアッベ数および部分分散比をそれぞれνｄｎおよびθｇＦｎとして、条件式
θｇＦｎ－（－１．６６５０×１０－７・νｄｎ３＋５．２１３０×１０－５・νｄｎ２－５．６５６０×１０－３・νｄｎ＋０．７３７０）＞０、
０．５５４３＜θｇＦｎ、および
５０．０＜νｄｎ＜８５．０
を満足し、アッべ数νｄおよび部分分散比θｇＦは、それぞれ、ｇ線、Ｆ線、Ｃ線およびｄ線に対する材料の屈折率をそれぞれＮｇ、ＮＦ、ＮＣおよびＮｄとして、式
νｄ＝（Ｎｄ－１）／（ＮＦ－ＮＣ）、および
θｇＦ＝（Ｎｇ－ＮＦ）／（ＮＦ－ＮＣ）
で表されることを特徴とするズームレンズことを特徴とするズームレンズことを特徴とするズームレンズである。 In one aspect of the present invention, from the object side to the image side ,
a first lens group having positive refractive power;
a second group consisting of one or two lens groups including a lens group having negative refractive power and moving toward the image side without moving toward the object side during zooming from the wide-angle end to the telephoto end;
and a lens group that moves toward the object side during zooming from the wide-angle end to the telephoto end ,
each pair of adjacent lens groups varies in spacing for zooming,
The conditional expression θgFn−(−1.6650×10 −7 ·νdn 3 +5.2130×10 −5 ·νdn 2 where νdn and θgFn are the Abbe number and partial dispersion ratio of the negative lens G2n included in the second group , respectively. −5.6560×10 −3 ·νdn+0.7370)>0,
0.5543 <θgFn, and 50.0<νdn<85.0
and the Abbe number νd and the partial dispersion ratio θgF are given by the formula
νd = (Nd-1)/(NF-NC), and
θgF = (Ng-NF)/(NF-NC)
A zoom lens characterized by a zoom lens characterized by being represented by

ここで、アッべ数νｄおよび部分分散比θｇＦは、それぞれ、ｇ線（波長４３５．８ｎｍ）、Ｆ線（４８６．１ｎｍ）、Ｃ線（６５６．３ｎｍ）およびｄ線（５８７．６ｎｍ）に対する材料の屈折率をそれぞれＮｇ、ＮＦ、ＮＣおよびＮｄとして、式
νｄ＝（Ｎｄ－１）／（ＮＦ－ＮＣ）、および
θｇＦ＝（Ｎｇ－ＮＦ）／（ＮＦ－ＮＣ）
で表される。 Here, the Abbe number νd and the partial dispersion ratio θgF are respectively the material νd = (Nd−1)/(NF−NC), and θgF=(Ng−NF)/(NF−NC), where Ng, NF, NC and Nd are the refractive indices of
is represented by

本発明によれば、例えば、広画角、高変倍比、および全変倍範囲にわたる高い光学性能の点で有利なズームレンズを提供することができる。 According to the present invention, for example, it is possible to provide a zoom lens that is advantageous in terms of wide angle of view, high zoom ratio, and high optical performance over the entire zoom range.

実施例１に係るズームレンズの広角端での断面図Cross-sectional view at the wide-angle end of the zoom lens according to Example 1 実施例１に係るズームレンズの収差図Aberration diagram of the zoom lens according to Example 1 実施例２に係るズームレンズの広角端での断面図Cross-sectional view at the wide-angle end of the zoom lens according to Example 2 実施例２に係るズームレンズの収差図Aberration diagram of the zoom lens according to Example 2 実施例３に係るズームレンズの広角端での断面図Cross-sectional view at the wide-angle end of the zoom lens according to Example 3 実施例３に係るズームレンズの収差図Aberration diagram of the zoom lens according to Example 3 実施例４に係るズームレンズの広角端での断面図Cross-sectional view at the wide-angle end of the zoom lens according to Example 4 実施例４に係るズームレンズの収差図Aberration diagram of the zoom lens according to Example 4 参考例に係るズームレンズの広角端での断面図Cross-sectional view at the wide-angle end of the zoom lens according to the reference example 参考例に係るズームレンズの収差図Aberration diagram of a zoom lens according to a reference example 実施例６に係るズームレンズの広角端での断面図Cross-sectional view at the wide-angle end of the zoom lens according to Example 6 実施例６に係るズームレンズの収差図Aberration diagram of the zoom lens according to Example 6 実施例７に係るズームレンズの広角端での断面図Cross-sectional view at the wide-angle end of the zoom lens according to Example 7 実施例７に係るズームレンズの収差図Aberration diagram of the zoom lens according to Example 7 θｇＦ－νｄ図θgF-νd diagram 実施形態に係る撮像装置の構成例を示す図1 is a diagram showing a configuration example of an imaging device according to an embodiment; FIG.

以下、添付図面を参照して本発明の実施形態を説明する。なお、実施形態を説明するための全図を通して、原則として（断りのない限り）、同一の部材等には同一の符号を付し、その繰り返しの説明は省略する。 Embodiments of the present invention will be described below with reference to the accompanying drawings. In principle (unless otherwise noted), the same members and the like are given the same reference numerals throughout the drawings for describing the embodiments, and repeated description thereof will be omitted.

〔ズームレンズに係る実施形態〕
本実施形態に係るズームレンズは、物体側から像側へ順に、正の屈折力を有する第１レンズ群と、負の屈折力を有する第２レンズ群と、変倍のために移動する少なくとも１つのレンズ群とを含む。隣り合うレンズ群の各組は、変倍のために間隔が変化する。第２レンズ群に含まれる負レンズＧ２ｎのアッベ数および部分分散比をそれぞれνｄｎおよびθｇＦｎとして、以下の条件式を満足するものとしている。当該条件式は、
θｇＦｎ－（－１．６６５０×１０－７・νｄｎ３＋５．２１３０×１０－５・νｄｎ２－５．６５６０×１０－３・νｄｎ＋０．７３７０）＞０、
０．５４５０＜θｇＦｎ、および
５０．０＜νｄｎ＜８５．０
である。 [Embodiment of Zoom Lens]
The zoom lens according to this embodiment includes, in order from the object side to the image side, a first lens group having positive refractive power, a second lens group having negative refractive power, and at least one lens group that moves for zooming. including two lens groups. Each pair of adjacent lens groups varies in spacing due to zooming. The following conditional expressions are satisfied, where νdn and θgFn are the Abbe number and partial dispersion ratio of the negative lens G2n included in the second lens group. The conditional expression is
θgFn−(−1.6650×10 −7 ·νdn 3 +5.2130×10 −5 ·νdn 2 −5.6560×10 −3 ·νdn+0.7370)>0,
0.5450<θgFn, and 50.0<νdn<85.0
is.

但し、アッべ数νｄおよび部分分散比θｇＦは、それぞれ後述の２式で表される。ここで、ｇ線（波長４３５．８ｎｍ）、Ｆ線（４８６．１ｎｍ）、Ｃ線（６５６．３ｎｍ）およびｄ線（５８７．６ｎｍ）に対する材料の屈折率をそれぞれＮｇ、ＮＦ、ＮＣおよびＮｄとする。当該２式は、
νｄ＝（Ｎｄ－１）／（ＮＦ－ＮＣ）、および
θｇＦ＝（Ｎｇ－ＮＦ）／（ＮＦ－ＮＣ）
である。 However, the Abbe number νd and the partial dispersion ratio θgF are respectively expressed by the following two equations. Here, Ng, NF, NC and Nd are the refractive indices of the material for the g-line (wavelength 435.8 nm), F-line (486.1 nm), C-line (656.3 nm) and d-line (587.6 nm), respectively. do. The two formulas are
νd=(Nd−1)/(NF−NC), and θgF=(Ng−NF)/(NF−NC)
is.

以下、本実施形態における実施例を説明する。なお、変倍のために移動する上記の少なくとも１つのレンズ群は、変倍のために移動する１つまたは２つのレンズ群のうちのいずれかから構成されているものとしうる。ここで、上記の第２レンズ群も変倍のために移動するものとしうる。当該第２レンズ群は、第２Ａレンズ群および第２Ｂレンズ群から構成されうる。第２Ａレンズ群および第２Ｂレンズ群は、いずれも広角端から望端への変倍のために、像側へ移動し、かつ、それらの間の間隔が減少または増加しうる。また、上記の第１レンズ群は、合焦のために移動するレンズ群を含みうる。また、変倍のために移動する上記の少なくとも１つのレンズ群は、合焦のために移動するレンズ群を含みうる。 Examples of the present embodiment will be described below. Note that the at least one lens group that moves for zooming can be composed of either one or two lens groups that move for zooming. Here, the second lens group can also be moved for zooming. The second lens group can be composed of a 2A lens group and a 2B lens group. Both the 2A lens group and the 2B lens group can move toward the image side and the distance between them can be decreased or increased for zooming from the wide-angle end to the telephoto end. Also, the first lens group may include a lens group that moves for focusing. Also, the at least one lens group that moves for zooming may include a lens group that moves for focusing.

＜実施例１＞
図１は、実施例１に係るズームレンズの広角端での断面図である。図２は、実施例１に係るズームレンズの収差図である。図２において、（Ａ）および（Ｂ）は、それぞれ広角端での収差図および望遠端での収差図である。 <Example 1>
FIG. 1 is a cross-sectional view at the wide-angle end of the zoom lens according to Example 1. FIG. FIG. 2 is an aberration diagram of the zoom lens according to Example 1. FIG. In FIG. 2, (A) and (B) are aberration diagrams at the wide-angle end and the telephoto end, respectively.

図１において、第１レンズ群Ｌ１、開口絞りＳＰおよび第４レンズ群Ｌ４は、いずれも変倍（ズーミング）のためには不動である。広角端から望遠端への変倍のために、第２レンズ群Ｌ２は、像側へ移動し、第３レンズ群Ｌ３は、物体側に凸の軌跡で移動する。また、第１レンズ群Ｌ１は、合焦（フォーカシング）のために移動するレンズ群を含みうる。 In FIG. 1, the first lens group L1, the aperture stop SP and the fourth lens group L4 are all stationary for zooming. For zooming from the wide-angle end to the telephoto end, the second lens unit L2 moves toward the image side, and the third lens unit L3 moves along a locus convex toward the object side. Also, the first lens group L1 may include a lens group that moves for focusing.

＜実施例２＞
図３は、実施例２に係るズームレンズの広角端での断面図である。図４は、実施例２に係るズームレンズの収差図である。図４において、（Ａ）および（Ｂ）は、それぞれ広角端での収差図および望遠端での収差図である。 <Example 2>
FIG. 3 is a cross-sectional view at the wide-angle end of the zoom lens according to Example 2. FIG. FIG. 4 is an aberration diagram of the zoom lens according to Example 2. FIG. In FIG. 4, (A) and (B) are aberration diagrams at the wide-angle end and the telephoto end, respectively.

図３において、第１レンズ群Ｌ１、開口絞りＳＰおよび第５レンズ群Ｌ５は、いずれも変倍のためには不動である。広角端から望遠端への変倍のために、第２レンズ群Ｌ２は、像側へ移動し、第３レンズ群Ｌ３および第４レンズＬ４は、いずれも物体側に凸の軌跡で移動する。また、第１レンズ群Ｌ１は、合焦のために移動するレンズ群を含みうる。 In FIG. 3, the first lens group L1, the aperture stop SP and the fifth lens group L5 are all stationary for zooming. For zooming from the wide-angle end to the telephoto end, the second lens group L2 moves toward the image side, and both the third lens group L3 and the fourth lens L4 move along convex trajectories toward the object side. Also, the first lens group L1 may include a lens group that moves for focusing.

＜実施例３＞
図５は、実施例３に係るズームレンズの広角端での断面図である。図６は、実施例３に係るズームレンズの収差図である。図６において、（Ａ）および（Ｂ）は、それぞれ広角端での収差図および望遠端での収差図である。 <Example 3>
FIG. 5 is a cross-sectional view at the wide-angle end of the zoom lens according to Example 3. FIG. FIG. 6 is an aberration diagram of the zoom lens according to Example 3. FIG. In FIG. 6, (A) and (B) are aberration diagrams at the wide-angle end and the telephoto end, respectively.

図５において、開口絞りＳＰは、変倍のためには不動である。広角端から望遠端への変倍のために、第１レンズ群Ｌ１は、物体側へ移動し、第２レンズ群Ｌ２は、像側へ移動し、第３レンズ群Ｌ３は、物体側に凸の軌跡で移動する。また、第４レンズ群は、広角端から望遠端への変倍のために移動し、かつ無限遠から有限距離への合焦のために物体側へ移動する。ここで、実線は、無限遠での軌跡を示し、破線は、至近距離での軌跡を示す。 In FIG. 5, the aperture stop SP is stationary for zooming. For zooming from the wide-angle end to the telephoto end, the first lens unit L1 moves toward the object side, the second lens unit L2 moves toward the image side, and the third lens unit L3 is convex toward the object side. move in the trajectory of The fourth lens group moves for zooming from the wide-angle end to the telephoto end, and moves toward the object side for focusing from infinity to a finite distance. Here, the solid line indicates the trajectory at infinity, and the dashed line indicates the trajectory at close range.

＜実施例４＞
図７は、実施例４に係るズームレンズの広角端での断面図である。図８は、実施例４に係るズームレンズの収差図である。図８において、（Ａ）および（Ｂ）は、それぞれ広角端での収差図および望遠端での収差図である。 <Example 4>
FIG. 7 is a cross-sectional view of the zoom lens according to Example 4 at the wide-angle end. FIG. 8 is an aberration diagram of the zoom lens according to Example 4. FIG. In FIG. 8, (A) and (B) are aberration diagrams at the wide-angle end and the telephoto end, respectively.

図７において、第１レンズ群Ｌ１、開口絞りＳＰおよび第５レンズ群Ｌ５は、いずれも変倍のためには不動である。広角端から望遠端への変倍のために、第２レンズ群Ｌ２は、像側へ移動し、第３レンズ群Ｌ３は、物体側へ移動する。第４レンズＬ４は、広角端から望遠端への変倍のために移動し、かつ無限遠から有限距離への合焦のために像側へ移動する。ここで、実線は、無限遠での軌跡を示し、破線は、至近距離での軌跡を示す。 In FIG. 7, the first lens group L1, the aperture stop SP and the fifth lens group L5 are all stationary for zooming. For zooming from the wide-angle end to the telephoto end, the second lens unit L2 moves toward the image side, and the third lens unit L3 moves toward the object side. The fourth lens L4 moves for zooming from the wide-angle end to the telephoto end, and moves toward the image side for focusing from infinity to a finite distance. Here, the solid line indicates the trajectory at infinity, and the dashed line indicates the trajectory at close range.

＜実施例５＞
図９は、参考例に係るズームレンズの広角端での断面図である。図１０は、参考例に係るズームレンズの収差図である。図１０において、（Ａ）および（Ｂ）は、それぞれ広角端での収差図および望遠端での収差図である。 <Example 5>
FIG. 9 is a cross-sectional view at the wide-angle end of the zoom lens according to the reference example . FIG. 10 is an aberration diagram of a zoom lens according to a reference example . In FIG. 10, (A) and (B) are aberration diagrams at the wide-angle end and the telephoto end, respectively.

各レンズ群の移動は、実施例１におけるそれと同様である。すなわち、図９において、第１レンズ群Ｌ１、開口絞りＳＰおよび第４レンズ群Ｌ４は、いずれも変倍のためには不動である。広角端から望遠端への変倍のために、第２レンズ群Ｌ２は、像側へ移動し、第３レンズ群Ｌ３は、物体側に凸の軌跡で移動する。また、第１レンズ群Ｌ１は、合焦のために移動するレンズ群を含みうる。 Movement of each lens group is the same as that in the first embodiment. That is, in FIG. 9, the first lens group L1, the aperture stop SP, and the fourth lens group L4 are all stationary for zooming. For zooming from the wide-angle end to the telephoto end, the second lens unit L2 moves toward the image side, and the third lens unit L3 moves along a locus convex toward the object side. Also, the first lens group L1 may include a lens group that moves for focusing.

＜実施例６＞
図１１は、実施例６に係るズームレンズの広角端での断面図である。図１２は、実施例６に係るズームレンズの収差図である。図１２において、（Ａ）および（Ｂ）は、それぞれ広角端での収差図および望遠端での収差図である。 <Example 6>
FIG. 11 is a cross-sectional view of the zoom lens according to Example 6 at the wide-angle end. FIG. 12 is an aberration diagram of the zoom lens according to Example 6. FIG. In FIG. 12, (A) and (B) are aberration diagrams at the wide-angle end and the telephoto end, respectively.

図１１において、第１レンズ群Ｌ１、開口絞りＳＰおよび第５レンズ群Ｌ５は、変倍のためには不動である。広角端から望遠端への変倍のために、第２レンズ群Ｌ２は、像側へ移動し、第３レンズ群Ｌ３および第４レンズＬ４は、いずれも物体側に凸の軌跡で移動する。第２レンズ群Ｌ２は、サブレンズ群Ｌ２Ａおよびサブレンズ群Ｌ２Ｂから構成されている。サブレンズ群Ｌ２Ａとサブレンズ群Ｌ２Ｂとの間の間隔は、広角端で最も広く、広角端から望遠端への変倍のために減少する。広角端から望遠端への変倍のためサブレンズ群Ｌ２Ａの移動量およびサブレンズ群Ｌ２Ｂの移動量をそれぞれｍ２Ａおよびｍ２Ｂとする。すると、ｍ２Ａ＝２１１．２およびｍ２Ｂ＝２００．０となっている。よって、ｍ２Ａ／ｍ２Ｂ＝１．１となっている。また、第１レンズ群Ｌ１は、合焦のために移動するレンズ群を含みうる。 In FIG. 11, the first lens group L1, the aperture stop SP and the fifth lens group L5 are stationary for zooming. For zooming from the wide-angle end to the telephoto end, the second lens group L2 moves toward the image side, and both the third lens group L3 and the fourth lens L4 move along convex trajectories toward the object side. The second lens group L2 is composed of a sub-lens group L2A and a sub-lens group L2B. The distance between the sub-lens group L2A and the sub-lens group L2B is widest at the wide-angle end and decreases for zooming from the wide-angle end to the telephoto end. The amount of movement of the sub-lens unit L2A and the amount of movement of the sub-lens unit L2B for zooming from the wide-angle end to the telephoto end are assumed to be m2A and m2B, respectively. Then m2A=211.2 and m2B=200.0. Therefore, m2A/m2B=1.1. Also, the first lens group L1 may include a lens group that moves for focusing.

＜実施例７＞
図１３は、実施例７に係るズームレンズの広角端での断面図である。図１４は、実施例７に係るズームレンズの収差図である。図１４において、（Ａ）および（Ｂ）は、それぞれ広角端での収差図および望遠端での収差図である。 <Example 7>
FIG. 13 is a cross-sectional view at the wide-angle end of the zoom lens according to Example 7. FIG. FIG. 14 is an aberration diagram of the zoom lens according to Example 7. FIG. In FIG. 14, (A) and (B) are aberration diagrams at the wide-angle end and the telephoto end, respectively.

図１３において、第１レンズ群Ｌ１、開口絞りＳＰおよび第５レンズ群Ｌ５は、変倍のためには不動である。広角端から望遠端への変倍のために、第２レンズ群Ｌ２は、像側へ移動し、第３レンズ群Ｌ３および第４レンズＬ４は、いずれも物体側に凸の軌跡で移動する。第２レンズ群Ｌ２は、サブレンズ群Ｌ２Ａおよびサブレンズ群Ｌ２Ｂから構成されている。サブレンズ群Ｌ２Ａとサブレンズ群Ｌ２Ｂとの間の間隔は、広角端で最も狭く、広角端から望遠端への変倍のために増加する。広角端から望遠端への変倍のためのサブレンズ群Ｌ２Ａの移動量およびサブレンズ群Ｌ２Ｂの移動量をそれぞれｍ２Ａおよびｍ２Ｂとする。すると、ｍ２Ａ＝２００．０、ｍ２Ｂ＝２１１．２となっている。よって、ｍ２Ａ／ｍ２Ｂ＝０．９となっている。また、第１レンズ群Ｌ１は、合焦のために移動するレンズ群を含みうる。 In FIG. 13, the first lens group L1, the aperture stop SP and the fifth lens group L5 are stationary for zooming. For zooming from the wide-angle end to the telephoto end, the second lens group L2 moves toward the image side, and both the third lens group L3 and the fourth lens L4 move along convex trajectories toward the object side. The second lens group L2 is composed of a sub-lens group L2A and a sub-lens group L2B. The distance between the sub-lens group L2A and the sub-lens group L2B is the narrowest at the wide-angle end and increases for zooming from the wide-angle end to the telephoto end. The amount of movement of the sub-lens unit L2A and the amount of movement of the sub-lens unit L2B for zooming from the wide-angle end to the telephoto end are assumed to be m2A and m2B, respectively. Then, m2A=200.0 and m2B=211.2. Therefore, m2A/m2B=0.9. Also, the first lens group L1 may include a lens group that moves for focusing.

ここで、各断面図において、左方は、物体側（前側）であり、右方は、像側（後側）である。ｉを物体側からのレンズ群の順番として、Ｌｉは、第ｉレンズ群を示す。ＳＰは、開口絞りを示す。Ｇは、プリズム、光学フィルターおよびその他のうちの少なくとも１つを含む光学ブロックを示す。ＩＰは、像面を示す。なお、各断面図は、ズームレンズの断面に加えて、撮像部（カメラ本体）の一部である光学ブロックＧおよび像面ＩＰの断面も図示している。また、像面ＩＰには、ＣＣＤまたはＣＭＯＳデバイスを含む撮像素子（光電変換素子）が配置されうる。本実施形態のズームレンズは、ビデオカメラやデジタルスチルカメラ、テレビカメラ、シネマカメラ、監視カメラ等の撮像装置の光学系として用いられうる。 Here, in each sectional view, the left side is the object side (front side), and the right side is the image side (back side). Letting i be the order of the lens groups from the object side, Li indicates the i-th lens group. SP indicates an aperture stop. G denotes an optical block including at least one of prisms, optical filters and others. IP indicates the image plane. In addition to the cross section of the zoom lens, each cross section also shows the cross section of the optical block G and the image plane IP, which are part of the imaging unit (camera body). Also, an imaging element (photoelectric conversion element) including a CCD or CMOS device can be arranged on the image plane IP. The zoom lens of this embodiment can be used as an optical system for imaging devices such as video cameras, digital still cameras, television cameras, cinema cameras, and surveillance cameras.

実施例１ないし実施例７の各収差図の球面収差、歪曲および倍率色収差において、実線は、実施例３・４ではｄ線での値を示し、他の実施例ではｅ線での値を示す。また、二点鎖線は、ｇ線での値を示し、一点鎖線は、Ｃ線での値を示し、破線は、Ｆ線での値を示す。また、各収差図の非点収差においては、破線および実線は、それぞれメリディオナル像面での値およびサジタル像面での値を示す。Ｆｎｏは、Ｆナンバーを示し、ωは、半画角を示す。球面収差は、０．４００ｍｍまたは０．６００ｍｍのスケールで、非点収差は、０．４００ｍｍまたは０．６００ｍｍのスケールで、それぞれ表されている。また、歪曲は、１０．０００％または５．０００％のスケールで、倍率色収差は、０．１００ｍｍ、０．０５０ｍｍまたは０．０４０ｍｍのスケールで、それぞれ表されている。 In the spherical aberration, distortion, and lateral chromatic aberration in each aberration diagram of Examples 1 to 7, the solid line indicates the value at the d-line in Examples 3 and 4, and the value at the e-line in other examples. . The two-dot chain line indicates the value for the g-line, the one-dot chain line indicates the value for the C-line, and the dashed line indicates the value for the F-line. Also, in the astigmatism in each aberration diagram, the dashed line and the solid line indicate the value on the meridional image plane and the value on the sagittal image plane, respectively. Fno indicates the F-number, and ω indicates the half angle of view. Spherical aberration is expressed on a scale of 0.400 mm or 0.600 mm, and astigmatism on a scale of 0.400 mm or 0.600 mm, respectively. Distortion is expressed on a scale of 10.000% or 5.000%, and lateral chromatic aberration is expressed on a scale of 0.100 mm, 0.050 mm or 0.040 mm, respectively.

各実施例のズームレンズは、正の屈折力を有する第１レンズ群と、変倍のために移動する負の屈折力を有する第２レンズ群とを含む、いわゆるポジティブリード型のズームレンズである。当該第２レンズ群は、広角端から望遠端への変倍のために像側へ移動するものである。そのようなポジティブリード型のズームレンズは、高変倍比の達成に有利なものである。 The zoom lens of each embodiment is a so-called positive lead type zoom lens including a first lens group with positive refractive power and a second lens group with negative refractive power that moves for zooming. . The second lens group moves toward the image side for zooming from the wide-angle end to the telephoto end. Such a positive lead type zoom lens is advantageous in achieving a high zoom ratio.

ここで、本実施形態に係るズームレンズの特徴としての各条件式を説明する。本実施形態に係るズームレンズは、広角、高変倍比、および全変倍範囲にわたる高い光学性能（特に倍率色収差の補正）の点で有利なものである。そのようなズームレンズは、レンズ群Ｌ２に含まれる負レンズＧ２ｎの材料の部分分散比およびアッベ数を特定して得られる。まず、負レンズＧ２ｎに採用する材料の部分分散比と倍率色収差との関係について説明する。図１５に示すように、現存する光学材料は、部分分散比θｇＦが、アッベ数νｄに対して狭い範囲に分布しており、アッベ数νｄが小さいほどθｇＦが大きくなる傾向を有している。特定の２波長に対する色収差の補正は、２波長色消し（１次スペクトル補正）とも称される。そして、高変倍比を有するズームレンズは、変倍に伴う色収差の変動を抑制するために、各レンズ群の軸上色収差および倍率色収差が概ねゼロとなるように補正される。さらに特定の１波長を加えてなる特定の３波長に対する色収差の補正は、２次スペクトル補正とも称される。変倍比を高くするほど、ズームレンズの高仕様化の要求に応えて、全変倍範囲で倍率色収差の２次スペクトルを低減することが難しくなる。 Here, each conditional expression as a feature of the zoom lens according to this embodiment will be described. The zoom lens according to this embodiment is advantageous in terms of wide angle, high zoom ratio, and high optical performance over the entire zoom range (especially correction of chromatic aberration of magnification). Such a zoom lens is obtained by specifying the partial dispersion ratio and Abbe number of the material of the negative lens G2n included in the lens group L2. First, the relationship between the partial dispersion ratio of the material used for the negative lens G2n and the chromatic aberration of magnification will be described. As shown in FIG. 15, the partial dispersion ratio θgF of existing optical materials is distributed in a narrow range with respect to the Abbe number νd, and θgF tends to increase as the Abbe number νd decreases. Correction of chromatic aberration for two specific wavelengths is also referred to as two-wavelength achromaticity (first order spectral correction). A zoom lens with a high zoom ratio is corrected so that longitudinal chromatic aberration and lateral chromatic aberration of each lens group are substantially zero in order to suppress variations in chromatic aberration that accompany zooming. Correction of chromatic aberration for three specific wavelengths, which is obtained by adding one specific wavelength, is also called secondary spectral correction. The higher the zoom ratio, the more difficult it becomes to reduce the secondary spectrum of the lateral chromatic aberration over the entire zoom range in response to the demand for higher specifications of the zoom lens.

当該２次スペクトルを低減するための本実施形態に係るズームレンズの構成は、冒頭で既述したとおりである。特に、負レンズＧ２ｎのアッベ数および部分分散比をそれぞれνｄｎおよびθｇＦｎとして、以下の条件式を満足するものとしている。当該条件式は、
θｇＦｎ－（－１．６６５０×１０－７・νｄｎ３＋５．２１３０×１０－５・νｄｎ２－５．６５６０×１０－３・νｄｎ＋０．７３７０）＞０ ・・・（１）
０．５４５０＜θｇＦｎ ・・・（２）
５０．０＜νｄｎ＜８５．０ ・・・（３）
である。 The configuration of the zoom lens according to this embodiment for reducing the secondary spectrum is as described at the beginning. In particular, the following conditional expressions are satisfied, where νdn and θgFn are the Abbe number and partial dispersion ratio of the negative lens G2n, respectively. The conditional expression is
θgFn−(−1.6650×10 −7 ·νdn 3 +5.2130×10 −5 ·νdn 2 −5.6560×10 −3 ·νdn+0.7370)>0 (1)
0.5450<θgFn (2)
50.0<νdn<85.0 (3)
is.

条件式（１）および（２）は、負レンズＧ２ｎの材料の部分分散比θｇＦｎを規定している。条件式（１）および（２）を満たすことにより、全変倍範囲にわたる色収差の補正、低減または調整が可能となる。条件式（１）および（２）の値が下限値以下になると、当該色収差、特に広角端から望遠端への変倍においてオーバーからアンダーへ変動する倍率色収差の二次スペクトル（２波長色消し後に残存する短波長に係る色収差）の十分な低減が困難となる。条件式（３）は、負レンズＧ２ｎの材料のアッベ数νｄｎを規定している。条件式（３）の値が上限値以上となると、負レンズＧ２ｎの分散が低くなるため、広角端でのプラス方向の短波長に係る倍率色収差が残存し、好ましくない。また、負レンズＧ２ｎの分散が低くなるため、その屈折率が低くなる。そうなると、負レンズＧ２ｎにおける曲率半径が小さくなるため、高次の収差の補正が困難となる。また、条件式（３）の値が下限値以下となると、負レンズＧ２ｎの分散が高くなるため、広角端でのプラス方向の短波長に係る倍率色収差の補正が過剰となり、好ましくない。なお、より好ましくは、条件式（１）から（３）の数値範囲を次のように設定するのがよい。
θｇＦ－（－１．６６５×１０－７・νｄ３＋５．２１３×１０－５・νｄ２－５．６５６×１０－３・νｄ＋０．７３９８）＞０ ・・・（１ａ）
０．５４９０＜θｇＦ ・・・（２ａ）
５２．０＜νｄ＜８１．０ ・・・（３ａ） Conditional expressions (1) and (2) define the partial dispersion ratio θgFn of the material of the negative lens G2n. Satisfying conditional expressions (1) and (2) enables correction, reduction or adjustment of chromatic aberration over the entire zoom range. When the values of conditional expressions (1) and (2) are equal to or lower than the lower limits, the secondary spectrum of the chromatic aberration of magnification, which fluctuates from over to under when zooming from the wide-angle end to the telephoto end (after two-wavelength achromatization, It becomes difficult to sufficiently reduce residual chromatic aberration associated with short wavelengths. Conditional expression (3) defines the Abbe number νdn of the material of the negative lens G2n. If the value of conditional expression (3) is equal to or greater than the upper limit, the dispersion of the negative lens G2n becomes low, so that lateral chromatic aberration relating to short wavelengths in the plus direction at the wide-angle end remains, which is not preferable. Also, since the dispersion of the negative lens G2n is low, its refractive index is low. As a result, the radius of curvature of the negative lens G2n becomes small, making it difficult to correct high-order aberrations. Further, if the value of conditional expression (3) is equal to or less than the lower limit, the dispersion of the negative lens G2n becomes high, so correction of chromatic aberration of magnification for short wavelengths in the positive direction at the wide-angle end becomes excessive, which is not preferable. More preferably, the numerical ranges of conditional expressions (1) to (3) are set as follows.
θgF−(−1.665×10 −7 ·νd 3 +5.213×10 −5 ·νd 2 −5.656×10 −3 ·νd+0.7398)>0 (1a)
0.5490<θgF (2a)
52.0<νd<81.0 (3a)

また、さらに好ましくは、条件式（２ａ）および（３ａ）の数値範囲を次の如く設定するのがよい。
０．５５４３＜θｇＦ ・・・（２ｂ）
５４．０＜νｄ＜６７．０ ・・・（３ｂ） More preferably, the numerical ranges of conditional expressions (2a) and (3a) are set as follows.
0.5543<θgF (2b)
54.0<νd<67.0 (3b)

各実施例において以上のような構成とすることにより、広画角、高変倍比、および全変倍範囲にわたる高い光学性能（特に倍率色収差の低減）の点で有利なズームレンズを提供することができる。 By constructing each embodiment as described above, it is possible to provide a zoom lens that is advantageous in terms of a wide angle of view, a high zoom ratio, and high optical performance over the entire zoom range (especially reduction of chromatic aberration of magnification). can be done.

本実施形態に係るズームレンズの構成における更なる様態として、次の条件式のうち少なくとも１つを満足するのが好ましい。
θｇＦｐ－｛（０．５８２８－０．５４３６）／（３６．２６－６０．４９）＊（νｄｐ－６０．４９）＋０．５４３６｝＞０ ・・・（４）
１＜ｆｎ／ｆ２≦１０ ・・・（５）
１＜ｆｐ／ｆ１≦１０ ・・・（６）
１．４８０＜ｎｄｎ＜１．７５０ ・・・（７） As a further aspect of the configuration of the zoom lens according to this embodiment, it is preferable to satisfy at least one of the following conditional expressions.
θgFp−{(0.5828−0.5436)/(36.26−60.49)*(νdp−60.49)+0.5436}>0 (4)
1<fn/f2≦10 (5)
1<fp/f1≦10 (6)
1.480<ndn<1.750 (7)

ここで、第１レンズ群に含まれる正レンズＧ１ｐのアッベ数および部分分散比をそれぞれνｄｐおよびθｇＦｐとする。また、第２レンズ群の焦点距離をｆ２とし、負レンズＧ２ｎの焦点距離をｆｎとする。また、第１レンズ群の焦点距離をｆ１とし、正レンズＧ１ｐの焦点距離をｆｐとする。また、負レンズＧ２ｎの屈折率をｎｄｎとする。 Here, the Abbe number and partial dispersion ratio of the positive lens G1p included in the first lens group are assumed to be νdp and θgFp, respectively. Let f2 be the focal length of the second lens group, and fn be the focal length of the negative lens G2n. Let f1 be the focal length of the first lens group, and fp be the focal length of the positive lens G1p. Let ndn be the refractive index of the negative lens G2n.

条件式（４）は、正レンズＧ１ｐの材料の部分分散比θｇＦｐを規定している。条件式（４）を満足することにより、全変倍範囲での軸上色収差のバランスのよい補正が可能となる。条件式（４）の値が下限値以下となると、望遠側でオーバーに変動する軸上色収差の二次スペクトル（２波長色消し後に残存する短波長に係る色収差）を十分に低減できないため、好ましくない。 Conditional expression (4) defines the partial dispersion ratio θgFp of the material of the positive lens G1p. Satisfying conditional expression (4) enables well-balanced correction of longitudinal chromatic aberration over the entire zoom range. If the value of conditional expression (4) is equal to or lower than the lower limit, it is not possible to sufficiently reduce the secondary spectrum of axial chromatic aberration (chromatic aberration remaining after two-wavelength achromatic aberration) that fluctuates excessively on the telephoto side, which is preferable. do not have.

条件式（５）は。第２レンズ群の焦点距離ｆ２と負レンズＧ２ｎの焦点距離ｆｎとの比を規定している。条件式（５）を満足することにより、全変倍範囲での倍率色収差のバランスのよい補正が可能となり、また、全変倍範囲での像面湾曲等の軸外収差の補正が可能となる。条件式（５）の値が下限値以下となると、負レンズＧ２ｎの屈折力が過大となり、軸外収差が過大となる。また、条件式（５）の値が上限値以上となると、負レンズＧ２ｎの屈折力が過小となり、倍率色収差の補正の効果が不足する。 Conditional expression (5) is: It defines the ratio between the focal length f2 of the second lens group and the focal length fn of the negative lens G2n. Satisfying conditional expression (5) enables well-balanced correction of chromatic aberration of magnification over the entire zoom range, and correction of off-axis aberrations such as curvature of field over the entire zoom range. . If the value of conditional expression (5) is equal to or less than the lower limit, the refractive power of the negative lens G2n becomes excessive, and the off-axis aberration becomes excessive. Further, when the value of conditional expression (5) is equal to or greater than the upper limit, the refractive power of the negative lens G2n becomes too small, and the effect of correcting the chromatic aberration of magnification becomes insufficient.

条件式（６）は、第１レンズ群の焦点距離ｆ１と正レンズＧ１ｐの焦点距離ｆｐとの比を規定している。条件式（６）を満足することにより、全変倍範囲での軸上色収差のバランスのよい補正すが可能となり、また、全変倍範囲での球面収差等の軸上収差の補正が可能とする。条件式（６）の値が下限値以下となると、正レンズＧ１ｐの屈折力が過大となり、軸上収差が過大となる。また、条件式（６）の値が上限値以上となると、正レンズＧ１ｐの屈折力が過小となり、軸上色収差の補正の効果が不足する。 Conditional expression (6) defines the ratio between the focal length f1 of the first lens group and the focal length fp of the positive lens G1p. Satisfying conditional expression (6) enables well-balanced correction of axial chromatic aberration over the entire zoom range, and correction of axial aberration such as spherical aberration over the entire zoom range. do. If the value of conditional expression (6) is equal to or less than the lower limit, the refractive power of the positive lens G1p becomes excessive, resulting in excessive axial aberration. Further, when the value of conditional expression (6) is equal to or greater than the upper limit, the refractive power of the positive lens G1p becomes too small, and the effect of correcting axial chromatic aberration becomes insufficient.

条件式（７）は、負レンズＧ２ｎの屈折率を規定している。条件式（７）の値が下限値以下となると、負レンズＧ２ｎの曲率が過大となり、高次の収差が発生する。また、条件式（７）の値が上限値以上となると、Ｇ２ｎの分散が過大となり、色収差が過大となる。 Conditional expression (7) defines the refractive index of the negative lens G2n. If the value of conditional expression (7) is equal to or less than the lower limit, the curvature of the negative lens G2n becomes excessive and high-order aberrations occur. Further, when the value of conditional expression (7) is equal to or greater than the upper limit, the dispersion of G2n becomes excessive, resulting in excessive chromatic aberration.

なお、さらに好ましくは、条件式（５）ないし（７）の数値範囲を次のように設定するのがよい。
１＜ｆｎ／ｆ２≦７ ・・・（５ａ）
１＜ｆｐ／ｆ１≦７ ・・・（６ａ）
１．５５０＜ｎｄｎ＜１．７５０ ・・・（７ａ） More preferably, the numerical ranges of conditional expressions (5) to (7) are set as follows.
1<fn/f2≦7 (5a)
1<fp/f1≦7 (6a)
1.550<ndn<1.750 (7a)

また、第２レンズ群は、実施例６および実施例７におけるように、２つのサブレンズ群（第２Ａレンズ群および第２Ｂレンズ群）に分かれていてもよい。その場合、ｆ２は、広角端での２つのサブレンズ群の合成焦点距離とする。また、そのように２つのサブレンズ群に分かれている場合、広角端から望遠端への変倍のための第２Ａレンズ群（サブレンズ群Ｌ２Ａ）の移動量および第２Ｂレンズ群（サブレンズ群Ｌ２Ｂ）の移動量をそれぞれｍ２Ａおよびｍ２Ｂとする。すると、次の条件式（８）を満足するのが好ましい。
０．７＜ｍ２Ａ／ｍ２Ｂ＜１．３ ・・・（８） Also, the second lens group may be divided into two sub-lens groups (the 2A lens group and the 2B lens group) as in the sixth and seventh embodiments. In that case, f2 is the combined focal length of the two sub-lens groups at the wide-angle end. In addition, when divided into two sub-lens groups as described above, the amount of movement of the 2A lens group (sub-lens group L2A) and the amount of movement of the 2B lens group (sub-lens group) for zooming from the wide-angle end to the telephoto end L2B) are respectively m2A and m2B. Then, it is preferable to satisfy the following conditional expression (8).
0.7<m2A/m2B<1.3 (8)

条件式（８）を満足しないと、十分な変倍比を得ることができなくなり、または、光学性能（特に色収差の補正）が十分ではなくなる。 If conditional expression (8) is not satisfied, a sufficient zoom ratio cannot be obtained, or optical performance (especially correction of chromatic aberration) will be insufficient.

以上の条件式のうち少なくとも条件式（１）ないし（３）を満足するように構成することにより、広画角、高変倍比、および全変倍範囲にわたる高い光学性能（特に、倍率色収差の補正）の点で有利なズームレンズを得ることができる。 By satisfying at least conditional expressions (1) to (3) among the above conditional expressions, a wide angle of view, a high zoom ratio, and high optical performance over the entire zooming range (particularly, chromatic aberration of magnification) can be achieved. A zoom lens that is advantageous in terms of correction) can be obtained.

〔撮像装置に係る実施形態〕
ここで、図１６を参照して、以上に説明したズームレンズを含む撮像装置（例えばＴＶカメラ）に係る実施形態を説明する。図１６は、実施形態に係る撮像装置の構成例を示す図である。図１６において、１０１は実施例１ないし実施例７のうちいずれかのズームレンズである。１２４は、カメラ本体（撮像部）である。ズームレンズ１０１は、カメラ本体１２４に対して着脱（交換）可能となっている。１２５は、カメラ本体１２４にズームレンズ１０１を装着して構成される撮像装置である。ズームレンズ１０１は、第１レンズ部Ｆと、第２レンズ部ＬＺと、および第３レンズ部Ｒとを有している。第１レンズ群Ｆは、合焦のために移動するレンズ群を含んでいる。第２レンズ部ＬＺは、変倍のために移動する少なくとも２つのレンズ群を含んでいる。第２レンズ部ＬＺより像側には、開口絞りＳＰと、第３レンズ部Ｒとが配置されている。第３レンズ部は、結像のためのレンズ群を含み、例えば、３つのレンズ群Ｒ１ないしＲ３を含みうる。また、光路に対して挿抜可能なレンズ群ＩＥを含みうる。レンズ群ＩＥは、レンズ群Ｒ１とレンズ群Ｒ３との間に挿入されることにより、ズームレンズ１０１の焦点距離範囲を変更する。 [Embodiment of Imaging Apparatus]
Now, with reference to FIG. 16, an embodiment relating to an imaging device (for example, a TV camera) including the zoom lens described above will be described. FIG. 16 is a diagram illustrating a configuration example of an imaging device according to the embodiment; In FIG. 16, 101 is one of the zoom lenses of Examples 1-7. 124 is a camera body (imaging unit). The zoom lens 101 is detachable (exchangeable) with respect to the camera body 124 . Reference numeral 125 denotes an imaging device configured by attaching a zoom lens 101 to a camera body 124 . The zoom lens 101 has a first lens section F, a second lens section LZ, and a third lens section R. The first lens group F includes lens groups that move for focusing. The second lens section LZ includes at least two lens groups that move for zooming. An aperture stop SP and a third lens section R are arranged on the image side of the second lens section LZ. The third lens section includes lens groups for imaging, and may include, for example, three lens groups R1 to R3. It can also include a lens group IE that can be inserted into and removed from the optical path. The lens group IE changes the focal length range of the zoom lens 101 by being inserted between the lens group R1 and the lens group R3.

１１４および１１５は、それぞれ第１レンズ部Ｆおよび第２レンズ群ＬＺを光軸方向に移動する駆動機構である。当該駆動機構は、ヘリコイドまたはカムを含んで構成されうる。１１６ないし１１８は、それぞれ駆動機構１１４および１１５ならびに開口絞りＳＰを動かすための動力を発生するモータ（アクチュエータ）である。１１９ないし１２１は、それぞれ第１レンズ部Ｆおよび第２レンズ部ＬＺの光軸上の位置ならびに開口絞りＳＰの絞り径を検出するための検出部である。当該検出部は、エンコーダ、ポテンショメータ、またはフォトセンサ等を含みうる。カメラ本体１２４において、１０９は、光学フィルターおよび色分解光学系の少なくとも一方を含むガラスブロックである。１１０は、ズームレンズ１０１の像面に配置された撮像素子（光電変換素子）であって、ＣＣＤまたはＣＭＯＳデバイスを含みうる。また、１１１は、カメラ本体１２４の各部を制御する制御部である。１２２は、ズームレンズ１０１の各部を制御する制御部である。各制御部は、ＣＰＵ等の処理部により構成されうる。本実施形態により、広画角、高変倍比、および全変倍範囲にわたる高い光学性能の点で有利な撮像装置を得ることができる。 Driving mechanisms 114 and 115 move the first lens unit F and the second lens unit LZ, respectively, in the optical axis direction. The drive mechanism may comprise a helicoid or cam. Motors (actuators) 116 to 118 generate power for moving the drive mechanisms 114 and 115 and the aperture stop SP, respectively. Reference numerals 119 to 121 denote detection units for detecting the positions of the first lens unit F and the second lens unit LZ on the optical axis and the aperture diameter of the aperture stop SP. The detector may include an encoder, potentiometer, photosensor, or the like. In the camera body 124, 109 is a glass block containing at least one of optical filters and color separation optics. An imaging element (photoelectric conversion element) 110 is arranged on the image plane of the zoom lens 101 and may include a CCD or CMOS device. A control unit 111 controls each unit of the camera body 124 . A control unit 122 controls each unit of the zoom lens 101 . Each control unit can be configured by a processing unit such as a CPU. According to this embodiment, it is possible to obtain an imaging apparatus that is advantageous in terms of a wide angle of view, a high zoom ratio, and high optical performance over the entire zoom range.

〔数値実施例〕
ここで、実施例１ないし７にそれぞれ対応する数値実施例１ないし７を示す。各数値実施例において、ｉは、物体側からの各面に付した番号（序数）を示す。ｒｉは、第ｉ番のレンズ面の曲率半径を示し、ｄｉは、第ｉ番の面間隔（レンズ厚または空気間隔）を示し、ｎｄｉ、νｄｉおよびθｇＦは、それぞれ第ｉ番目のレンズの材料（空気を含む）の屈折率、アッベ数および部分分散比を示す。また、各面の有効径と、各レンズの焦点距離とを示している。非球面データにおける非球面形状は、次式で表される。ここで、光軸をＸ軸とし、光軸とは直交する軸をＨ軸とし、光の進行方向をＸ軸の正の方向とし、Ｒを近軸曲率半径とし、ｋを円錐定数とし、Ａ４、Ａ６、Ａ８、Ａ１０、Ａ１２、Ａ１４およびＡ１６のそれぞれを非球面係数とする。 [Numerical example]
Numerical Examples 1 to 7 corresponding to Examples 1 to 7, respectively, are now shown. In each numerical example, i indicates a number (ordinal number) attached to each surface from the object side. ri indicates the radius of curvature of the i-th lens surface, di indicates the i-th surface spacing (lens thickness or air gap), and ndi, νdi and θgF are the materials of the i-th lens ( (including air), Abbe number and partial dispersion ratio. Also, the effective diameter of each surface and the focal length of each lens are shown. The aspherical shape in the aspherical data is represented by the following equation. Here, the optical axis is the X-axis, the axis perpendicular to the optical axis is the H-axis, the traveling direction of light is the positive direction of the X-axis, R is the paraxial radius of curvature, k is the conic constant, and A4 , A6, A8, A10, A12, A14 and A16 are aspheric coefficients.

Figure 0007134757000001
Figure 0007134757000001

各非球面係数において、［ｅ－Ｘ］は、［×１０－Ｘ］を意味している。 In each aspheric coefficient, [eX] means [×10 −X ].

また、各種データとして、以下のものを示す。ななわち、ズーム比（変倍比）や焦点距離、Ｆナンバー、画角（度）、像高を示している。ここで、画角は、最大像高に対応する値を、像高は、最大像高を、それぞれ示している。ＢＦは、バックフォーカスであり、ここでは、最終レンズ面から像面までの空気換算での距離を示している。レンズ全長は、第１レンズ面から最終レンズ面までの距離にバックフォーカスを加えた値を示している。また、面データにおける間隔ｄのうち（可変）となっているものは、間隔ｄが変倍のために変化することを示し、焦点距離に応じた値を別表に示している。また、入射瞳位置、射出瞳位置、前側主点位置および後側主点位置は、焦点距離に応じた値を別表に示している。また、レンズ群データは、各レンズ群の始面、焦点距離、レンズ構成長、前側主演位置および後側主点位置を示している。また、単レンズデータは、各レンズの始面および焦点距離を示している。尚、以下に記載する数値実施例１ないし７のそれぞれについての条件式（１）ないし（７）の値を表１に示している。なお、表１の第３行に記載されているＧ〇またはＧ○○は、各実施例における負レンズＧ２ｎまたは正レンズＧ１ｐに相当するレンズを示し、〇または○○は、当該レンズが物体側から数えて何番目のものかを表している。 Moreover, the following are shown as various data. That is, it indicates the zoom ratio (variable magnification ratio), focal length, F-number, angle of view (degrees), and image height. Here, the angle of view indicates a value corresponding to the maximum image height, and the image height indicates the maximum image height. BF is the back focus, and here indicates the distance from the final lens surface to the image plane in terms of air. The total lens length indicates the value obtained by adding the back focus to the distance from the first lens surface to the final lens surface. In addition, the (variable) spacing d in the surface data indicates that the spacing d varies due to zooming, and values corresponding to focal lengths are shown in the attached table. Also, the entrance pupil position, the exit pupil position, the front principal point position, and the rear principal point position show values according to the focal length in the attached table. Further, the lens group data indicates the starting surface, focal length, lens configuration length, front main position and rear main point position of each lens group. Also, the single lens data indicates the starting surface and focal length of each lens. Table 1 shows the values of conditional expressions (1) to (7) for each of Numerical Examples 1 to 7 described below. In addition, G○ or G○○ described in the third row of Table 1 indicates a lens corresponding to the negative lens G2n or the positive lens G1p in each example, and ○ or ○○ indicates that the lens is on the object side. It indicates what number it is counting from.

（数値実施例１）
単位 mm

面データ
面番号 r d nd vd θgF 有効径 焦点距離
1 0.00000 1.00000 1.000000 0.00 0.0000 108.061 0.000
2 0.00000 4.00000 1.000000 0.00 0.0000 106.368 0.000
3 0.00000 1.00000 1.000000 0.00 0.0000 99.593 0.000
4 10758.51251 3.20000 1.772499 49.60 0.5520 97.712 -88.255
5 68.06228 22.34903 1.000000 0.00 0.0000 83.900 0.000
6 -140.90438 2.70000 1.772499 49.60 0.5520 83.483 -114.262
7 241.34898 0.18797 1.000000 0.00 0.0000 85.072 0.000
8 136.46375 7.87965 1.922860 20.88 0.6282 86.921 176.545
9 772.42821 1.99417 1.000000 0.00 0.0000 86.777 0.000
10 546.94118 12.33551 1.603001 65.44 0.5401 86.690 166.621
11 -122.58143 0.19491 1.000000 0.00 0.0000 86.442 0.000
12 361.56615 15.31416 1.496999 81.54 0.5375 80.906 131.603
13 -79.00817 2.50000 1.800000 29.84 0.6017 80.579 -190.547
14 -164.94221 6.87859 1.000000 0.00 0.0000 81.168 0.000
15 126.52053 2.50000 1.738000 32.26 0.5899 77.579 -140.313
16 56.69180 19.32379 1.496999 81.54 0.5375 74.619 93.905
17 -238.02119 0.20000 1.000000 0.00 0.0000 74.473 0.000
18 72.55949 11.37865 1.537150 74.81 0.5390 71.304 132.002
19 -3413.54261 0.20000 1.000000 0.00 0.0000 70.306 0.000
20 130.57361 4.44798 1.790000 45.50 0.5720 66.140 323.140
21 261.83588 (可変) 1.000000 0.00 0.0000 64.551 0.000

22 66.19805 1.20000 1.882997 40.76 0.5667 30.558 -28.501
23 18.15516 6.06343 1.000000 0.00 0.0000 25.206 0.000
24 -102.09549 4.11393 1.846660 23.78 0.6034 25.059 36.759
25 -24.47879 0.70000 1.772499 49.60 0.5520 24.678 -42.787
26 -94.25683 2.31711 1.000000 0.00 0.0000 23.639 0.000
27 -25.78435 0.70000 1.594100 60.47 0.5551 23.437 -34.637
28 104.98040 0.16000 1.000000 0.00 0.0000 24.262 0.000
29 46.62247 3.54310 1.654115 39.68 0.5737 25.219 56.369
30 -175.98688 (可変) 1.000000 0.00 0.0000 25.495 0.000

31 -30.31934 0.90000 1.651597 58.55 0.5425 25.930 -30.644
32 59.88234 2.96175 1.808095 22.76 0.6307 28.781 77.769
33 1029.54382 (可変) 1.000000 0.00 0.0000 29.321 0.000

34 0.00000 1.29372 1.000000 0.00 0.0000 34.814 0.000
35 1114.32641 4.53870 1.754999 52.32 0.5475 35.992 71.497
36 -56.89938 0.20000 1.000000 0.00 0.0000 36.577 0.000
37 55.90798 6.15553 1.618000 63.33 0.5441 38.155 64.942
38 -138.09229 0.20000 1.000000 0.00 0.0000 37.957 0.000
39 60.45248 7.94498 1.496999 81.54 0.5375 36.246 69.491
40 -77.56988 1.20000 2.001000 29.13 0.5997 34.731 -60.004
41 278.13949 0.19930 1.000000 0.00 0.0000 33.912 0.000
42 52.51614 7.66308 1.516330 64.14 0.5353 33.144 49.418
43 -47.50070 1.10000 1.772499 49.60 0.5520 32.193 -45.432
44 138.28408 19.17015 1.000000 0.00 0.0000 30.974 0.000
45 46.04265 5.00057 1.487490 70.23 0.5300 25.390 48.526
46 -47.24754 0.19982 1.000000 0.00 0.0000 24.808 0.000
47 32.24250 5.34509 1.487490 70.23 0.5300 23.092 36.794
48 -38.51927 1.00000 2.000690 25.46 0.6133 22.251 -14.932
49 25.10644 1.82204 1.000000 0.00 0.0000 21.167 0.000
50 56.79665 7.50013 1.808095 22.76 0.6307 21.441 16.598
51 -16.74077 1.00000 1.882997 40.76 0.5667 21.714 -15.623
52 83.33991 8.49137 1.000000 0.00 0.0000 22.681 0.000
53 34.03846 4.90203 1.487490 70.23 0.5300 29.209 66.989
54 -836.17406 37.88000 1.000000 0.00 0.0000 29.274 0.000
像面 ∞

非球面データ
第11面
K = 7.86276e-001 A 4= 1.60118e-007 A 6= 1.17537e-011 A 8=-5.48128e-014
A10= 9.04222e-017 A12=-7.87797e-020 A14= 3.40535e-023 A16=-5.78414e-027

第22面
K = 6.30690e+000 A 4= 8.31658e-007 A 6=-1.38660e-008 A 8= 6.05695e-011
A10=-3.27704e-013 A12= 6.65924e-016 A14= 7.65638e-019 A16=-3.82304e-021

各種データ
ズーム比 8.00

焦点距離 20.00 40.00 70.00 110.00 160.00 28.00 136.00
Fナンバー 2.80 2.79 2.79 2.80 3.56 2.79 3.07
画角 37.87 21.24 12.52 8.05 5.55 29.05 6.52
像高 15.55 15.55 15.55 15.55 15.55 15.55 15.55
レンズ全長 316.05 316.05 316.05 316.05 316.05 316.05 316.05
BF 37.88 37.88 37.88 37.88 37.88 37.88 37.88

d21 0.68 21.30 33.04 39.96 44.08 11.68 42.47
d30 40.92 18.13 7.26 4.22 6.03 28.61 4.77
d33 9.40 11.56 10.71 6.81 0.89 10.71 3.76

入射瞳位置 66.59 94.80 128.00 163.53 197.28 78.78 182.57
射出瞳位置 -75.90 -75.90 -75.90 -75.90 -75.90 -75.90 -75.90
前側主点位置 83.08 120.74 154.93 167.18 132.28 99.89 156.01
後側主点位置 17.88 -2.12 -32.12 -72.12 -122.12 9.88 -98.12

ズームレンズ群データ
群 始面 焦点距離 レンズ構成長 前側主点位置 後側主点位置
1 1 52.01 119.58 67.14 19.82
2 22 -22.52 18.80 2.04 -12.07
3 31 -50.85 3.86 0.01 -2.16
4 34 33.83 84.93 6.01 -68.58

単レンズデータ
レンズ 始面 焦点距離
1 1 -88.26
2 6 -114.26
3 8 176.54
4 10 166.62
5 12 131.60
6 13 -190.55
7 15 -140.31
8 16 93.90
9 18 132.00
10 20 323.14
11 22 -28.50
12 24 36.76
13 25 -42.79
14 27 -34.64
15 29 56.37
16 31 -30.64
17 32 77.77
18 35 71.50
19 37 64.94
20 39 69.49
21 40 -60.00
22 42 49.42
23 43 -45.43
24 45 48.53
25 47 36.79
26 48 -14.93
27 50 16.60
28 51 -15.62
29 53 66.99
(Numerical example 1)
unit mm

Surface data Surface number rd nd vd θgF Effective diameter Focal length
1 0.00000 1.00000 1.000000 0.00 0.0000 108.061 0.000
2 0.00000 4.00000 1.000000 0.00 0.0000 106.368 0.000
3 0.00000 1.00000 1.000000 0.00 0.0000 99.593 0.000
4 10758.51251 3.20000 1.772499 49.60 0.5520 97.712 -88.255
5 68.06228 22.34903 1.000000 0.00 0.0000 83.900 0.000
6 -140.90438 2.70000 1.772499 49.60 0.5520 83.483 -114.262
7 241.34898 0.18797 1.000000 0.00 0.0000 85.072 0.000
8 136.46375 7.87965 1.922860 20.88 0.6282 86.921 176.545
9 772.42821 1.99417 1.000000 0.00 0.0000 86.777 0.000
10 546.94118 12.33551 1.603001 65.44 0.5401 86.690 166.621
11 -122.58143 0.19491 1.000000 0.00 0.0000 86.442 0.000
12 361.56615 15.31416 1.496999 81.54 0.5375 80.906 131.603
13 -79.00817 2.50000 1.800000 29.84 0.6017 80.579 -190.547
14 -164.94221 6.87859 1.000000 0.00 0.0000 81.168 0.000
15 126.52053 2.50000 1.738000 32.26 0.5899 77.579 -140.313
16 56.69180 19.32379 1.496999 81.54 0.5375 74.619 93.905
17 -238.02119 0.20000 1.000000 0.00 0.0000 74.473 0.000
18 72.55949 11.37865 1.537150 74.81 0.5390 71.304 132.002
19 -3413.54261 0.20000 1.000000 0.00 0.0000 70.306 0.000
20 130.57361 4.44798 1.790000 45.50 0.5720 66.140 323.140
21 261.83588 (variable) 1.000000 0.00 0.0000 64.551 0.000

22 66.19805 1.20000 1.882997 40.76 0.5667 30.558 -28.501
23 18.15516 6.06343 1.000000 0.00 0.0000 25.206 0.000
24 -102.09549 4.11393 1.846660 23.78 0.6034 25.059 36.759
25 -24.47879 0.70000 1.772499 49.60 0.5520 24.678 -42.787
26 -94.25683 2.31711 1.000000 0.00 0.0000 23.639 0.000
27 -25.78435 0.70000 1.594100 60.47 0.5551 23.437 -34.637
28 104.98040 0.16000 1.000000 0.00 0.0000 24.262 0.000
29 46.62247 3.54310 1.654115 39.68 0.5737 25.219 56.369
30 -175.98688 (variable) 1.000000 0.00 0.0000 25.495 0.000

31 -30.31934 0.90000 1.651597 58.55 0.5425 25.930 -30.644
32 59.88234 2.96175 1.808095 22.76 0.6307 28.781 77.769
33 1029.54382 (variable) 1.000000 0.00 0.0000 29.321 0.000

34 0.00000 1.29372 1.000000 0.00 0.0000 34.814 0.000
35 1114.32641 4.53870 1.754999 52.32 0.5475 35.992 71.497
36 -56.89938 0.20000 1.000000 0.00 0.0000 36.577 0.000
37 55.90798 6.15553 1.618000 63.33 0.5441 38.155 64.942
38 -138.09229 0.20000 1.000000 0.00 0.0000 37.957 0.000
39 60.45248 7.94498 1.496999 81.54 0.5375 36.246 69.491
40 -77.56988 1.20000 2.001000 29.13 0.5997 34.731 -60.004
41 278.13949 0.19930 1.000000 0.00 0.0000 33.912 0.000
42 52.51614 7.66308 1.516330 64.14 0.5353 33.144 49.418
43 -47.50070 1.10000 1.772499 49.60 0.5520 32.193 -45.432
44 138.28408 19.17015 1.000000 0.00 0.0000 30.974 0.000
45 46.04265 5.00057 1.487490 70.23 0.5300 25.390 48.526
46 -47.24754 0.19982 1.000000 0.00 0.0000 24.808 0.000
47 32.24250 5.34509 1.487490 70.23 0.5300 23.092 36.794
48 -38.51927 1.00000 2.000690 25.46 0.6133 22.251 -14.932
49 25.10644 1.82204 1.000000 0.00 0.0000 21.167 0.000
50 56.79665 7.50013 1.808095 22.76 0.6307 21.441 16.598
51 -16.74077 1.00000 1.882997 40.76 0.5667 21.714 -15.623
52 83.33991 8.49137 1.000000 0.00 0.0000 22.681 0.000
53 34.03846 4.90203 1.487490 70.23 0.5300 29.209 66.989
54 -836.17406 37.88000 1.000000 0.00 0.0000 29.274 0.000
Image plane ∞

11th surface of aspheric data
K = 7.86276e-001A 4= 1.60118e-007A 6= 1.17537e-011A 8=-5.48128e-014
A10= 9.04222e-017 A12=-7.87797e-020 A14= 3.40535e-023 A16=-5.78414e-027

22nd side
K = 6.30690e+000 A 4= 8.31658e-007 A 6=-1.38660e-008 A 8= 6.05695e-011
A10=-3.27704e-013 A12= 6.65924e-016 A14= 7.65638e-019 A16=-3.82304e-021

Various data zoom ratio 8.00

Focal length 20.00 40.00 70.00 110.00 160.00 28.00 136.00
F number 2.80 2.79 2.79 2.80 3.56 2.79 3.07
Angle of view 37.87 21.24 12.52 8.05 5.55 29.05 6.52
Image height 15.55 15.55 15.55 15.55 15.55 15.55 15.55
Overall lens length 316.05 316.05 316.05 316.05 316.05 316.05 316.05
BF 37.88 37.88 37.88 37.88 37.88 37.88 37.88

d21 0.68 21.30 33.04 39.96 44.08 11.68 42.47
d30 40.92 18.13 7.26 4.22 6.03 28.61 4.77
d33 9.40 11.56 10.71 6.81 0.89 10.71 3.76

Entrance pupil position 66.59 94.80 128.00 163.53 197.28 78.78 182.57
Exit pupil position -75.90 -75.90 -75.90 -75.90 -75.90 -75.90 -75.90
Front principal point position 83.08 120.74 154.93 167.18 132.28 99.89 156.01
Rear principal point position 17.88 -2.12 -32.12 -72.12 -122.12 9.88 -98.12

Zoom lens group data group Starting surface Focal length Lens construction length Front principal point position Rear principal point position
1 1 52.01 119.58 67.14 19.82
2 22 -22.52 18.80 2.04 -12.07
3 31 -50.85 3.86 0.01 -2.16
4 34 33.83 84.93 6.01 -68.58

Single lens data lens Starting surface Focal length
1 1 -88.26
2 6 -114.26
3 8 176.54
4 10 166.62
5 12 131.60
6 13 -190.55
7 15 -140.31
8 16 93.90
9 18 132.00
10 20 323.14
11 22 -28.50
12 24 36.76
13 25 -42.79
14 27 -34.64
15 29 56.37
16 31 -30.64
17 32 77.77
18 35 71.50
19 37 64.94
20 39 69.49
21 40 -60.00
22 42 49.42
23 43 -45.43
24 45 48.53
25 47 36.79
26 48 -14.93
27 50 16.60
28 51 -15.62
29 53 66.99

（数値実施例２）
単位 mm

面データ
面番号 r d nd vd θgF 有効径 焦点距離
1 1174.24460 4.70000 1.772499 49.60 0.5520 185.816 -244.784
2 163.25478 36.34541 1.000000 0.00 0.0000 164.495 0.000
3 -379.55481 4.50000 1.772499 49.60 0.5520 160.409 -280.711
4 514.20943 0.15000 1.000000 0.00 0.0000 156.817 0.000
5 334.69028 9.27710 1.717362 29.51 0.5985 156.491 684.148
6 1022.66823 8.32374 1.000000 0.00 0.0000 155.732 0.000
7 -8537.73408 14.00000 1.537750 74.70 0.5392 154.074 510.942
8 -267.17020 0.20000 1.000000 0.00 0.0000 153.433 0.000
9 1900.94378 4.40000 1.805177 25.43 0.6100 144.317 -384.041
10 267.79958 15.00000 1.496999 81.54 0.5375 139.261 396.268
11 -738.65222 45.59466 1.000000 0.00 0.0000 138.276 0.000
12 480.81338 17.07760 1.496999 81.54 0.5375 140.265 359.771
13 -282.62072 0.15000 1.000000 0.00 0.0000 140.736 0.000
14 419.11315 12.43394 1.496999 81.54 0.5375 140.407 528.821
15 -703.35386 0.15000 1.000000 0.00 0.0000 140.023 0.000
16 330.91819 8.63668 1.603112 60.64 0.5415 136.842 693.411
17 1546.90558 (可変) 1.000000 0.00 0.0000 135.821 0.000

18 557.31952 1.50000 1.772499 49.60 0.5520 64.468 -136.111
19 88.70974 5.64201 1.000000 0.00 0.0000 59.727 0.000
20 334.61553 1.50000 1.729157 54.68 0.5444 58.012 -49.356
21 32.55947 10.45708 1.846660 23.78 0.6205 50.460 57.856
22 81.15215 6.11000 1.000000 0.00 0.0000 48.858 0.000
23 -222.28632 1.50000 1.610000 66.61 0.5897 48.035 -78.625
24 61.59801 (可変) 1.000000 0.00 0.0000 45.379 0.000

25 443.71960 6.25242 1.620411 60.29 0.5427 46.822 303.732
26 -328.01205 0.15000 1.000000 0.00 0.0000 48.173 0.000
27 119.68309 11.10590 1.487490 70.23 0.5300 49.520 108.297
28 -92.14182 0.09304 1.000000 0.00 0.0000 50.038 0.000
29 -103.96050 1.60000 1.805181 25.42 0.6161 49.975 -184.895
30 -339.75575 (可変) 1.000000 0.00 0.0000 50.543 0.000

31 86.98783 1.60000 1.805181 25.42 0.6161 51.456 -140.984
32 49.03804 9.30397 1.487490 70.23 0.5300 50.555 93.860
33 -675.22246 0.15000 1.000000 0.00 0.0000 50.599 0.000
34 62.28275 7.65369 1.620411 60.29 0.5427 50.592 90.371
35 -557.28865 (可変) 1.000000 0.00 0.0000 50.005 0.000

36 0.00000 2.98000 1.000000 0.00 0.0000 28.462 0.000
37 -150.14743 1.40000 1.788001 47.37 0.5559 27.027 -21.654
38 19.44047 7.30654 1.854780 24.80 0.6122 25.397 19.490
39 -102.96711 1.40000 1.788001 47.37 0.5559 24.859 -40.194
40 46.35311 5.93408 1.000000 0.00 0.0000 23.692 0.000
41 -40.84409 19.74135 1.772499 49.60 0.5520 23.284 -36.872
42 115.83532 8.40424 1.000000 0.00 0.0000 27.167 0.000
43 -66.47523 1.50000 1.537750 74.70 0.5392 30.194 -96.329
44 239.97487 7.05543 1.639999 60.08 0.5370 32.075 56.247
45 -42.05921 3.00000 1.000000 0.00 0.0000 33.464 0.000
46 667.94563 1.50000 2.001000 29.13 0.5997 34.838 -46.125
47 43.46460 7.60055 1.516330 64.14 0.5353 35.214 59.269
48 -98.47490 0.19999 1.000000 0.00 0.0000 36.122 0.000
49 86.11932 7.00000 1.496999 81.54 0.5375 37.839 75.285
50 -64.70749 0.19995 1.000000 0.00 0.0000 38.096 0.000
51 46.94628 9.84683 1.438750 94.93 0.5340 37.282 54.339
52 -45.57013 1.48557 1.000000 0.00 0.0000 36.549 0.000
53 -40.89430 1.50000 2.000690 25.46 0.6133 35.069 -47.423
54 -284.91124 5.00001 1.858956 22.73 0.6284 35.357 62.653
55 -46.03109 7.99999 1.000000 0.00 0.0000 35.464 0.000
56 0.00000 33.00000 1.608590 46.44 0.5664 50.000 0.000
57 0.00000 13.20000 1.516330 64.15 0.5352 50.000 0.000
58 0.00000 10.00000 1.000000 0.00 0.0000 50.000 0.000
像面 ∞

非球面データ
第18面
K = 0.00000e+000 A 4= 3.27961e-007 A 6= 2.89984e-011 A 8=-5.87870e-014
A10=-3.36310e-017 A12= 9.07081e-021

第34面
K = 0.00000e+000 A 4=-1.10732e-007 A 6=-5.88708e-010 A 8= 1.12132e-012
A10=-7.82377e-016 A12= 9.64886e-020

各種データ
ズーム比 30.00

焦点距離 6.50 15.00 35.00 87.00 195.00
Fナンバー 1.49 1.48 1.50 1.50 2.20
画角 40.24 20.14 8.93 3.62 1.62
像高 5.50 5.50 5.50 5.50 5.50
レンズ全長 625.00 625.00 625.00 625.00 625.00
BF 10.00 10.00 10.00 10.00 10.00

d17 3.00 47.26 104.52 160.79 214.18
d24 201.78 102.64 44.02 25.13 6.00
d30 16.41 61.14 45.43 1.00 1.00
d35 1.00 11.15 28.22 35.27 1.00

入射瞳位置 116.36 153.69 245.01 489.14 1303.51
射出瞳位置 75.28 75.28 75.28 75.28 75.28
前側主点位置 123.51 172.14 298.78 692.09 2081.02
後側主点位置 3.50 -5.00 -25.00 -77.00 -185.00

ズームレンズ群データ
群 始面 焦点距離 レンズ構成長 前側主点位置 後側主点位置
1 1 178.19 180.94 151.79 93.60
2 18 -37.54 26.71 13.49 -5.25
3 25 138.09 19.20 3.32 -9.16
4 31 70.12 18.71 6.00 -6.22
5 36 26.95 147.25 44.27 6.37

単レンズデータ
レンズ 始面 焦点距離
1 1 -244.78
2 3 -280.71
3 5 684.15
4 7 510.94
5 9 -384.04
6 10 396.27
7 12 359.77
8 14 528.82
9 16 693.41
10 18 -136.11
11 20 -49.36
12 21 57.86
13 23 -78.62
14 25 303.73
15 27 108.30
16 29 -184.89
17 31 -140.98
18 32 93.86
19 34 90.37
20 37 -21.65
21 38 19.49
22 39 -40.19
23 41 -36.87
24 43 -96.33
25 44 56.25
26 46 -46.13
27 47 59.27
28 49 75.28
29 51 54.34
30 53 -47.42
31 54 62.65
32 56 0.00
33 57 0.00
(Numerical example 2)
unit mm

Surface data Surface number rd nd vd θgF Effective diameter Focal length
1 1174.24460 4.70000 1.772499 49.60 0.5520 185.816 -244.784
2 163.25478 36.34541 1.000000 0.00 0.0000 164.495 0.000
3 -379.55481 4.50000 1.772499 49.60 0.5520 160.409 -280.711
4 514.20943 0.15000 1.000000 0.00 0.0000 156.817 0.000
5 334.69028 9.27710 1.717362 29.51 0.5985 156.491 684.148
6 1022.66823 8.32374 1.000000 0.00 0.0000 155.732 0.000
7 -8537.73408 14.00000 1.537750 74.70 0.5392 154.074 510.942
8 -267.17020 0.20000 1.000000 0.00 0.0000 153.433 0.000
9 1900.94378 4.40000 1.805177 25.43 0.6100 144.317 -384.041
10 267.79958 15.00000 1.496999 81.54 0.5375 139.261 396.268
11 -738.65222 45.59466 1.000000 0.00 0.0000 138.276 0.000
12 480.81338 17.07760 1.496999 81.54 0.5375 140.265 359.771
13 -282.62072 0.15000 1.000000 0.00 0.0000 140.736 0.000
14 419.11315 12.43394 1.496999 81.54 0.5375 140.407 528.821
15 -703.35386 0.15000 1.000000 0.00 0.0000 140.023 0.000
16 330.91819 8.63668 1.603112 60.64 0.5415 136.842 693.411
17 1546.90558 (variable) 1.000000 0.00 0.0000 135.821 0.000

18 557.31952 1.50000 1.772499 49.60 0.5520 64.468 -136.111
19 88.70974 5.64201 1.000000 0.00 0.0000 59.727 0.000
20 334.61553 1.50000 1.729157 54.68 0.5444 58.012 -49.356
21 32.55947 10.45708 1.846660 23.78 0.6205 50.460 57.856
22 81.15215 6.11000 1.000000 0.00 0.0000 48.858 0.000
23 -222.28632 1.50000 1.610000 66.61 0.5897 48.035 -78.625
24 61.59801 (variable) 1.000000 0.00 0.0000 45.379 0.000

25 443.71960 6.25242 1.620411 60.29 0.5427 46.822 303.732
26 -328.01205 0.15000 1.000000 0.00 0.0000 48.173 0.000
27 119.68309 11.10590 1.487490 70.23 0.5300 49.520 108.297
28 -92.14182 0.09304 1.000000 0.00 0.0000 50.038 0.000
29 -103.96050 1.60000 1.805181 25.42 0.6161 49.975 -184.895
30 -339.75575 (variable) 1.000000 0.00 0.0000 50.543 0.000

31 86.98783 1.60000 1.805181 25.42 0.6161 51.456 -140.984
32 49.03804 9.30397 1.487490 70.23 0.5300 50.555 93.860
33 -675.22246 0.15000 1.000000 0.00 0.0000 50.599 0.000
34 62.28275 7.65369 1.620411 60.29 0.5427 50.592 90.371
35 -557.28865 (variable) 1.000000 0.00 0.0000 50.005 0.000

36 0.00000 2.98000 1.000000 0.00 0.0000 28.462 0.000
37 -150.14743 1.40000 1.788001 47.37 0.5559 27.027 -21.654
38 19.44047 7.30654 1.854780 24.80 0.6122 25.397 19.490
39 -102.96711 1.40000 1.788001 47.37 0.5559 24.859 -40.194
40 46.35311 5.93408 1.000000 0.00 0.0000 23.692 0.000
41 -40.84409 19.74135 1.772499 49.60 0.5520 23.284 -36.872
42 115.83532 8.40424 1.000000 0.00 0.0000 27.167 0.000
43 -66.47523 1.50000 1.537750 74.70 0.5392 30.194 -96.329
44 239.97487 7.05543 1.639999 60.08 0.5370 32.075 56.247
45 -42.05921 3.00000 1.000000 0.00 0.0000 33.464 0.000
46 667.94563 1.50000 2.001000 29.13 0.5997 34.838 -46.125
47 43.46460 7.60055 1.516330 64.14 0.5353 35.214 59.269
48 -98.47490 0.19999 1.000000 0.00 0.0000 36.122 0.000
49 86.11932 7.00000 1.496999 81.54 0.5375 37.839 75.285
50 -64.70749 0.19995 1.000000 0.00 0.0000 38.096 0.000
51 46.94628 9.84683 1.438750 94.93 0.5340 37.282 54.339
52 -45.57013 1.48557 1.000000 0.00 0.0000 36.549 0.000
53 -40.89430 1.50000 2.000690 25.46 0.6133 35.069 -47.423
54 -284.91124 5.00001 1.858956 22.73 0.6284 35.357 62.653
55 -46.03109 7.99999 1.000000 0.00 0.0000 35.464 0.000
56 0.00000 33.00000 1.608590 46.44 0.5664 50.000 0.000
57 0.00000 13.20000 1.516330 64.15 0.5352 50.000 0.000
58 0.00000 10.00000 1.000000 0.00 0.0000 50.000 0.000
Image plane ∞

18th surface of aspheric data
K = 0.00000e+000 A 4= 3.27961e-007 A 6= 2.89984e-011 A 8=-5.87870e-014
A10=-3.36310e-017 A12= 9.07081e-021

34th side
K = 0.00000e+000 A 4=-1.10732e-007 A 6=-5.88708e-010 A 8= 1.12132e-012
A10=-7.82377e-016 A12= 9.64886e-020

Various data Zoom ratio 30.00

Focal length 6.50 15.00 35.00 87.00 195.00
F number 1.49 1.48 1.50 1.50 2.20
Angle of view 40.24 20.14 8.93 3.62 1.62
Image height 5.50 5.50 5.50 5.50 5.50
Total lens length 625.00 625.00 625.00 625.00 625.00
BF 10.00 10.00 10.00 10.00 10.00

d17 3.00 47.26 104.52 160.79 214.18
d24 201.78 102.64 44.02 25.13 6.00
d30 16.41 61.14 45.43 1.00 1.00
d35 1.00 11.15 28.22 35.27 1.00

Entrance pupil position 116.36 153.69 245.01 489.14 1303.51
Exit pupil position 75.28 75.28 75.28 75.28 75.28
Front principal point position 123.51 172.14 298.78 692.09 2081.02
Rear principal point position 3.50 -5.00 -25.00 -77.00 -185.00

Zoom lens group data group Starting surface Focal length Lens construction length Front principal point position Rear principal point position
1 1 178.19 180.94 151.79 93.60
2 18 -37.54 26.71 13.49 -5.25
3 25 138.09 19.20 3.32 -9.16
4 31 70.12 18.71 6.00 -6.22
5 36 26.95 147.25 44.27 6.37

Single lens data lens Starting surface Focal length
1 1 -244.78
2 3 -280.71
3 5 684.15
4 7 510.94
5 9 -384.04
6 10 396.27
7 12 359.77
8 14 528.82
9 16 693.41
10 18 -136.11
11 20 -49.36
12 21 57.86
13 23 -78.62
14 25 303.73
15 27 108.30
16 29 -184.89
17 31 -140.98
18 32 93.86
19 34 90.37
20 37 -21.65
21 38 19.49
22 39 -40.19
23 41 -36.87
24 43 -96.33
25 44 56.25
26 46 -46.13
27 47 59.27
28 49 75.28
29 51 54.34
30 53 -47.42
31 54 62.65
32 56 0.00
33 57 0.00

（数値実施例３）
単位 mm

面データ
面番号 r d nd vd θgF 有効径 焦点距離
1 55.40592 1.34987 1.846660 23.93 0.6199 31.169 -96.622
2 32.79119 6.04521 1.516330 64.14 0.5353 29.528 51.673
3 -136.87576 0.19998 1.000000 0.00 0.0000 28.869 0.000
4 29.88645 3.19009 1.618000 63.33 0.5441 26.572 73.558
5 83.08123 (可変) 1.000000 0.00 0.0000 25.858 0.000

6 162.99906 0.79992 1.834807 42.71 0.5642 14.458 -12.758
7 10.02730 2.99982 1.000000 0.00 0.0000 11.663 0.000
8 -41.60379 0.69993 1.650000 54.96 0.5784 10.993 -12.438
9 10.15563 1.57224 1.000000 0.00 0.0000 10.086 0.000
10 -53.31024 0.59994 1.834807 42.71 0.5642 10.085 -77.860
11 -290.65252 0.14057 1.000000 0.00 0.0000 10.198 0.000
12 15.22444 1.83428 1.922860 18.90 0.6495 10.457 21.321
13 60.82803 (可変) 1.000000 0.00 0.0000 10.196 0.000

14 0.00000 (可変) 1.000000 0.00 0.0000 8.533 0.000

15 9.78173 2.98360 1.639999 60.08 0.5370 10.207 14.277
16 -129.86607 3.82124 1.000000 0.00 0.0000 9.769 0.000
17 68.91802 0.69993 1.805181 25.42 0.6161 8.199 -12.396
18 8.74887 0.46265 1.000000 0.00 0.0000 7.963 0.000
19 15.01379 2.13283 1.583126 59.38 0.5423 7.979 21.532
20 -74.49098 (可変) 1.000000 0.00 0.0000 8.238 0.000

21 15.79358 2.63051 1.696797 55.53 0.5434 9.418 14.083
22 -24.41512 0.69993 1.846660 23.93 0.6199 9.218 -57.680
23 -48.99322 (可変) 1.000000 0.00 0.0000 9.133 0.000

24 0.00000 2.95000 1.516330 64.14 0.5353 20.000 0.000
25 0.00000 0.01000 1.000000 0.00 0.0000 20.000 0.000
像面 ∞

非球面データ
第15面
K =-1.24240e+000 A 4= 6.61643e-005 A 6=-2.82349e-008 A 8= 1.79831e-009

第19面
K =-4.16889e-001 A 4=-5.53903e-005

各種データ
ズーム比 8.00
広角 中間 望遠
焦点距離 4.81 13.27 38.46
Fナンバー 1.85 2.42 2.88
画角 32.21 12.85 4.50
像高 3.03 3.03 3.03
レンズ全長 77.51 80.26 82.51
BF 0.01 0.01 0.01

d 5 1.25 14.73 25.76
d13 22.42 11.69 2.91
d14 6.22 1.93 2.66
d20 4.81 5.75 4.38
d23 6.98 10.33 10.96

入射瞳位置 20.44 61.01 161.86
射出瞳位置 831.50 -93.58 -77.93
前側主点位置 25.27 72.40 181.35
後側主点位置 -4.79 -13.26 -38.45

ズームレンズ群データ
群 始面 焦点距離 レンズ構成長 前側主点位置 後側主点位置
1 1 45.08 10.79 2.84 -4.11
2 6 -8.01 8.65 1.05 -5.94
3 14 ∞ 0.00 0.00 -0.00
4 15 20.22 10.10 -3.06 -9.86
5 21 18.43 3.33 0.44 -1.53
6 24 ∞ 2.95 0.97 -0.97

単レンズデータ
レンズ 始面 焦点距離
1 1 -97.56
2 2 51.86
3 4 73.84
4 6 -12.83
5 8 -12.49
6 10 -78.29
7 12 21.59
8 15 14.33
9 17 -12.51
10 19 21.62
11 21 14.14
12 22 -58.24
13 24 0.00
(Numerical example 3)
unit mm

Surface data Surface number rd nd vd θgF Effective diameter Focal length
1 55.40592 1.34987 1.846660 23.93 0.6199 31.169 -96.622
2 32.79119 6.04521 1.516330 64.14 0.5353 29.528 51.673
3 -136.87576 0.19998 1.000000 0.00 0.0000 28.869 0.000
4 29.88645 3.19009 1.618000 63.33 0.5441 26.572 73.558
5 83.08123 (variable) 1.000000 0.00 0.0000 25.858 0.000

6 162.99906 0.79992 1.834807 42.71 0.5642 14.458 -12.758
7 10.02730 2.99982 1.000000 0.00 0.0000 11.663 0.000
8 -41.60379 0.69993 1.650000 54.96 0.5784 10.993 -12.438
9 10.15563 1.57224 1.000000 0.00 0.0000 10.086 0.000
10 -53.31024 0.59994 1.834807 42.71 0.5642 10.085 -77.860
11 -290.65252 0.14057 1.000000 0.00 0.0000 10.198 0.000
12 15.22444 1.83428 1.922860 18.90 0.6495 10.457 21.321
13 60.82803 (variable) 1.000000 0.00 0.0000 10.196 0.000

14 0.00000 (variable) 1.000000 0.00 0.0000 8.533 0.000

15 9.78173 2.98360 1.639999 60.08 0.5370 10.207 14.277
16 -129.86607 3.82124 1.000000 0.00 0.0000 9.769 0.000
17 68.91802 0.69993 1.805181 25.42 0.6161 8.199 -12.396
18 8.74887 0.46265 1.000000 0.00 0.0000 7.963 0.000
19 15.01379 2.13283 1.583126 59.38 0.5423 7.979 21.532
20 -74.49098 (variable) 1.000000 0.00 0.0000 8.238 0.000

21 15.79358 2.63051 1.696797 55.53 0.5434 9.418 14.083
22 -24.41512 0.69993 1.846660 23.93 0.6199 9.218 -57.680
23 -48.99322 (variable) 1.000000 0.00 0.0000 9.133 0.000

24 0.00000 2.95000 1.516330 64.14 0.5353 20.000 0.000
25 0.00000 0.01000 1.000000 0.00 0.0000 20.000 0.000
Image plane ∞

15th surface of aspheric data
K=-1.24240e+000 A 4= 6.61643e-005 A 6=-2.82349e-008 A 8= 1.79831e-009

19th side
K=-4.16889e-001 A4=-5.53903e-005

Various data zoom ratio 8.00
Wide Angle Medium Telephoto Focal Length 4.81 13.27 38.46
F number 1.85 2.42 2.88
Angle of view 32.21 12.85 4.50
Image height 3.03 3.03 3.03
Overall lens length 77.51 80.26 82.51
BF 0.01 0.01 0.01

d5 1.25 14.73 25.76
d13 22.42 11.69 2.91
d14 6.22 1.93 2.66
d20 4.81 5.75 4.38
d23 6.98 10.33 10.96

Entrance pupil position 20.44 61.01 161.86
Exit pupil position 831.50 -93.58 -77.93
Front principal point position 25.27 72.40 181.35
Rear principal point position -4.79 -13.26 -38.45

Zoom lens group data group Starting surface Focal length Lens construction length Front principal point position Rear principal point position
1 1 45.08 10.79 2.84 -4.11
2 6 -8.01 8.65 1.05 -5.94
3 14 ∞ 0.00 0.00 -0.00
4 15 20.22 10.10 -3.06 -9.86
5 21 18.43 3.33 0.44 -1.53
6 24 ∞ 2.95 0.97 -0.97

Single lens data lens Starting surface Focal length
1 1 -97.56
2 2 51.86
3 4 73.84
4 6 -12.83
5 8 -12.49
6 10 -78.29
7 12 21.59
8 15 14.33
9 17 -12.51
10 19 21.62
11 21 14.14
12 22 -58.24
13 24 0.00

（数値実施例４）
単位 mm

面番号 r d nd vd θgF 有効径 焦点距離
1 72.88193 1.30000 1.854780 24.80 0.6122 39.975 -121.898
2 42.69623 5.79017 1.496999 81.54 0.5375 39.125 84.560
3 -3140.97139 0.15000 1.000000 0.00 0.0000 39.044 0.000
4 39.35545 4.15351 1.595220 67.74 0.5442 38.374 100.658
5 109.43448 0.10000 1.000000 0.00 0.0000 37.978 0.000
6 32.80132 4.01941 1.537750 74.70 0.5392 35.860 104.876
7 74.70200 (可変) 1.000000 0.00 0.0000 35.224 0.000

8 70.45996 0.56295 1.953750 32.32 0.5898 15.943 -14.489
9 11.57809 1.72152 1.000000 0.00 0.0000 13.135 0.000
10 46.41978 0.46913 1.851500 40.78 0.5695 12.969 -10.989
11 7.78846 3.28670 1.000000 0.00 0.0000 11.185 0.000
12 -29.62259 0.46913 1.550000 56.79 0.5581 11.275 -21.911
13 20.57589 0.09453 1.000000 0.00 0.0000 11.821 0.000
14 13.88006 2.09306 1.959060 17.47 0.6598 12.453 16.998
15 80.41027 (可変) 1.000000 0.00 0.0000 12.349 0.000

16 0.00000 (可変) 1.000000 0.00 0.0000 12.575 0.000

17 11.54415 3.30937 1.764500 49.09 0.5528 14.704 18.016
18 60.92868 3.98331 1.000000 0.00 0.0000 14.175 0.000
19 13.42676 0.45000 2.003300 28.27 0.5980 11.526 -12.887
20 6.50313 3.84745 1.437000 95.10 0.5326 10.287 19.880
21 21.04371 0.32937 1.000000 0.00 0.0000 10.074 0.000
22 9.25697 3.75830 1.496999 81.54 0.5375 10.408 11.960
23 -14.48328 (可変) 1.000000 0.00 0.0000 10.307 0.000

24 -52.41870 0.40000 1.953750 32.32 0.5898 6.278 -5.353
25 5.72359 (可変) 1.000000 0.00 0.0000 5.911 0.000

26 11.95113 2.62698 1.846660 23.93 0.6199 8.776 8.290
27 -15.65283 (可変) 1.000000 0.00 0.0000 8.666 0.000

28 0.00000 2.00000 1.516330 64.14 0.5353 20.000 0.000
29 0.00000 0.00000 1.000000 0.00 0.0000 20.000 0.000
像面 ∞

非球面データ
第17面
K =-5.35377e+000 A 4= 3.88465e-004 A 6=-5.04300e-006 A 8= 5.26066e-008
A10=-2.53197e-010

第22面
K = 6.95291e-001 A 4=-3.86538e-004 A 6=-1.51974e-005 A 8= 7.82599e-007
A10=-1.74928e-008

第23面
K =-1.76974e+001 A 4=-7.51614e-004 A 6= 9.71150e-006 A 8= 2.31815e-007
A10=-1.08444e-008

各種データ
ズーム比 44.00

焦点距離 4.43 46.67 195.00 13.33 82.63
Fナンバー 1.65 3.00 4.90 2.00 4.00
画角 35.83 3.92 0.94 13.50 2.22
像高 3.20 3.20 3.20 3.20 3.20
レンズ全長 89.01 89.01 89.01 89.01 89.01
BF 0.00 0.00 0.00 0.00 0.00

d 7 0.60 24.65 29.93 15.26 27.00
d15 30.12 6.08 0.80 15.46 3.73
d16 5.69 1.53 0.60 3.61 0.49
d23 4.80 8.39 1.90 6.76 7.56
d25 1.98 2.54 9.97 2.09 4.41
d27 0.90 0.90 0.90 0.90 0.90

入射瞳位置 23.44 203.14 482.12 77.87 282.79
射出瞳位置 -280.45 -241.54 15.39 -145.10 53.24
前側主点位置 27.80 240.79 3147.70 89.98 493.68
後側主点位置 -4.43 -46.67 -195.00 -13.33 -82.63

ズームレンズ群データ
群 始面 焦点距離 レンズ構成長 前側主点位置 後側主点位置
1 1 44.68 15.51 3.50 -6.51
2 8 -6.69 8.70 1.03 -6.08
3 16 ∞ 0.00 0.00 -0.00
4 17 13.14 15.68 7.96 -8.87
5 24 -5.39 0.40 0.18 -0.02
6 26 8.37 2.63 0.64 -0.84
7 28 ∞ 2.00 0.66 -0.66

単レンズデータ
レンズ 始面 焦点距離
1 1 -123.04
2 2 84.81
3 4 101.02
4 6 105.22
5 8 -14.59
6 10 -11.05
7 12 -22.00
8 14 17.23
9 17 18.10
10 19 -12.99
11 20 19.93
12 22 11.99
13 24 -5.39
14 26 8.37
15 28 0.00
(Numerical example 4)
unit mm

Surface number rd nd vd θgF Effective diameter Focal length
1 72.88193 1.30000 1.854780 24.80 0.6122 39.975 -121.898
2 42.69623 5.79017 1.496999 81.54 0.5375 39.125 84.560
3 -3140.97139 0.15000 1.000000 0.00 0.0000 39.044 0.000
4 39.35545 4.15351 1.595220 67.74 0.5442 38.374 100.658
5 109.43448 0.10000 1.000000 0.00 0.0000 37.978 0.000
6 32.80132 4.01941 1.537750 74.70 0.5392 35.860 104.876
7 74.70200 (variable) 1.000000 0.00 0.0000 35.224 0.000

8 70.45996 0.56295 1.953750 32.32 0.5898 15.943 -14.489
9 11.57809 1.72152 1.000000 0.00 0.0000 13.135 0.000
10 46.41978 0.46913 1.851500 40.78 0.5695 12.969 -10.989
11 7.78846 3.28670 1.000000 0.00 0.0000 11.185 0.000
12 -29.62259 0.46913 1.550000 56.79 0.5581 11.275 -21.911
13 20.57589 0.09453 1.000000 0.00 0.0000 11.821 0.000
14 13.88006 2.09306 1.959060 17.47 0.6598 12.453 16.998
15 80.41027 (variable) 1.000000 0.00 0.0000 12.349 0.000

16 0.00000 (Variable) 1.000000 0.00 0.0000 12.575 0.000

17 11.54415 3.30937 1.764500 49.09 0.5528 14.704 18.016
18 60.92868 3.98331 1.000000 0.00 0.0000 14.175 0.000
19 13.42676 0.45000 2.003300 28.27 0.5980 11.526 -12.887
20 6.50313 3.84745 1.437000 95.10 0.5326 10.287 19.880
21 21.04371 0.32937 1.000000 0.00 0.0000 10.074 0.000
22 9.25697 3.75830 1.496999 81.54 0.5375 10.408 11.960
23 -14.48328 (variable) 1.000000 0.00 0.0000 10.307 0.000

24 -52.41870 0.40000 1.953750 32.32 0.5898 6.278 -5.353
25 5.72359 (Variable) 1.000000 0.00 0.0000 5.911 0.000

26 11.95113 2.62698 1.846660 23.93 0.6199 8.776 8.290
27 -15.65283 (variable) 1.000000 0.00 0.0000 8.666 0.000

28 0.00000 2.00000 1.516330 64.14 0.5353 20.000 0.000
29 0.00000 0.00000 1.000000 0.00 0.0000 20.000 0.000
Image plane ∞

17th surface of aspheric data
K=-5.35377e+000 A 4= 3.88465e-004 A 6=-5.04300e-006 A 8= 5.26066e-008
A10=-2.53197e-010

22nd side
K = 6.95291e-001 A 4=-3.86538e-004 A 6=-1.51974e-005 A 8= 7.82599e-007
A10=-1.74928e-008

23rd side
K=-1.76974e+001 A 4=-7.51614e-004 A 6= 9.71150e-006 A 8= 2.31815e-007
A10=-1.08444e-008

Various data Zoom ratio 44.00

Focal length 4.43 46.67 195.00 13.33 82.63
F number 1.65 3.00 4.90 2.00 4.00
Angle of view 35.83 3.92 0.94 13.50 2.22
Image height 3.20 3.20 3.20 3.20 3.20
Overall lens length 89.01 89.01 89.01 89.01 89.01
BF 0.00 0.00 0.00 0.00 0.00

d7 0.60 24.65 29.93 15.26 27.00
d15 30.12 6.08 0.80 15.46 3.73
d16 5.69 1.53 0.60 3.61 0.49
d23 4.80 8.39 1.90 6.76 7.56
d25 1.98 2.54 9.97 2.09 4.41
d27 0.90 0.90 0.90 0.90 0.90

Entrance pupil position 23.44 203.14 482.12 77.87 282.79
Exit pupil position -280.45 -241.54 15.39 -145.10 53.24
Front principal point position 27.80 240.79 3147.70 89.98 493.68
Rear principal point position -4.43 -46.67 -195.00 -13.33 -82.63

Zoom lens group data group Starting surface Focal length Lens construction length Front principal point position Rear principal point position
1 1 44.68 15.51 3.50 -6.51
2 8 -6.69 8.70 1.03 -6.08
3 16 ∞ 0.00 0.00 -0.00
4 17 13.14 15.68 7.96 -8.87
5 24 -5.39 0.40 0.18 -0.02
6 26 8.37 2.63 0.64 -0.84
7 28 ∞ 2.00 0.66 -0.66

Single lens data lens Starting surface Focal length
1 1 -123.04
2 2 84.81
3 4 101.02
4 6 105.22
5 8 -14.59
6 10 -11.05
7 12 -22.00
8 14 17.23
9 17 18.10
10 19 -12.99
11 20 19.93
12 22 11.99
13 24 -5.39
14 26 8.37
15 28 0.00

（数値参考例）
単位 mm

面データ
面番号 r d nd vd θgF 有効径 焦点距離
1 0.00000 1.00000 1.000000 0.00 0.0000 107.981 0.000
2 0.00000 4.00000 1.000000 0.00 0.0000 106.295 0.000
3 0.00000 1.00000 1.000000 0.00 0.0000 99.554 0.000
4 3301.38021 3.20000 1.772499 49.60 0.5520 97.265 -86.724
5 65.94298 22.90783 1.000000 0.00 0.0000 83.220 0.000
6 -133.92432 2.70000 1.772499 49.60 0.5520 82.835 -124.568
7 350.84805 0.19130 1.000000 0.00 0.0000 84.581 0.000
8 137.82316 7.11488 1.922860 20.88 0.6282 86.749 201.971
9 499.95189 1.99581 1.000000 0.00 0.0000 86.564 0.000
10 394.92486 14.22596 1.603001 65.44 0.5401 86.519 139.877
11 -106.28694 0.19429 1.000000 0.00 0.0000 86.232 0.000
12 169.41603 14.44110 1.438750 94.66 0.5340 77.904 143.782
13 -98.28783 2.50000 1.800000 29.84 0.6017 77.292 -158.581
14 -429.69134 6.83608 1.000000 0.00 0.0000 76.756 0.000
15 133.80658 2.50000 1.738000 32.26 0.5899 76.179 -155.338
16 61.49109 17.20417 1.438750 94.66 0.5340 73.905 115.791
17 -271.23437 0.20000 1.000000 0.00 0.0000 73.928 0.000
18 93.79430 11.34539 1.537150 74.81 0.5390 72.844 134.595
19 -306.33493 0.20000 1.000000 0.00 0.0000 72.181 0.000
20 80.00000 6.24893 1.790000 45.50 0.5720 65.449 174.871
21 182.19059 (可変) 1.000000 0.00 0.0000 63.802 0.000

22 113.13368 1.20000 1.882997 40.76 0.5667 30.984 -27.568
23 20.02798 3.97446 1.000000 0.00 0.0000 25.858 0.000
24 88.32738 4.75661 1.846660 23.78 0.6034 25.738 29.814
25 -34.94623 0.70000 1.772499 49.60 0.5520 25.017 -24.044
26 40.40381 5.34167 1.000000 0.00 0.0000 22.495 0.000
27 -19.56895 0.70000 1.481157 80.19 0.5451 22.495 -99.765
28 -33.35485 0.16000 1.000000 0.00 0.0000 23.783 0.000
29 47.14355 2.57190 1.654115 39.68 0.5737 26.133 101.438
30 157.03132 (可変) 1.000000 0.00 0.0000 26.240 0.000

31 -29.79038 0.90000 1.651597 58.55 0.5425 26.695 -30.704
32 62.41469 2.98568 1.808095 22.76 0.6307 29.843 78.438
33 2407.63316 (可変) 1.000000 0.00 0.0000 30.374 0.000

34 0.00000 1.28971 1.000000 0.00 0.0000 35.998 0.000
35 1842.31787 4.70279 1.754999 52.32 0.5475 37.171 70.615
36 -55.10006 0.20000 1.000000 0.00 0.0000 37.740 0.000
37 55.00293 6.49678 1.618000 63.33 0.5441 39.458 64.766
38 -142.30410 0.20000 1.000000 0.00 0.0000 39.237 0.000
39 57.71997 8.31308 1.496999 81.54 0.5375 37.246 68.621
40 -79.93435 1.20000 2.001000 29.13 0.5997 35.600 -58.318
41 224.78483 0.19955 1.000000 0.00 0.0000 34.639 0.000
42 49.40250 8.03398 1.516330 64.14 0.5353 33.777 48.411
43 -48.14822 1.10000 1.772499 49.60 0.5520 32.745 -43.764
44 116.50951 18.49468 1.000000 0.00 0.0000 31.335 0.000
45 42.05126 5.24588 1.487490 70.23 0.5300 25.739 46.734
46 -48.03668 0.19969 1.000000 0.00 0.0000 25.113 0.000
47 31.33921 5.16008 1.487490 70.23 0.5300 22.475 36.189
48 -38.47777 1.00000 2.000690 25.46 0.6133 21.641 -14.447
49 23.81024 1.59323 1.000000 0.00 0.0000 20.522 0.000
50 45.78379 7.27774 1.808095 22.76 0.6307 20.775 15.968
51 -16.92438 1.00000 1.882997 40.76 0.5667 20.953 -14.696
52 58.63013 7.90554 1.000000 0.00 0.0000 21.674 0.000
53 32.95285 4.62576 1.487490 70.23 0.5300 27.834 65.861
54 -1373.94491 0.00000 1.000000 0.00 0.0000 27.927 0.000
像面 ∞

非球面データ
第11面
K = 3.59941e+000 A 4= 4.82467e-007 A 6= 8.82450e-011 A 8= 3.21596e-014
A10=-8.57606e-018 A12= 2.19453e-020 A14=-1.28985e-023 A16= 4.04224e-027

第22面
K = 9.92312e+000 A 4= 3.70508e-006 A 6=-1.52834e-008 A 8= 1.21937e-010
A10=-9.11680e-013 A12= 3.95965e-015 A14=-8.67212e-018 A16= 7.15932e-021

各種データ
ズーム比 8.00

焦点距離 20.00 40.00 70.00 110.00 160.00 28.00 136.00
Fナンバー 2.80 2.79 2.79 2.80 3.63 2.79 3.12
画角 37.87 21.24 12.52 8.05 5.55 29.05 6.52
像高 15.55 15.55 15.55 15.55 15.55 15.55 15.55
レンズ全長 316.08 316.08 316.08 316.08 316.08 316.08 316.08
BF 37.84 37.84 37.84 37.84 37.84 37.84 37.84

d21 0.68 20.64 31.92 38.52 42.42 11.34 40.90
d30 40.63 18.60 8.25 5.51 7.42 28.71 6.13
d33 9.40 11.47 10.54 6.68 0.88 10.67 3.69
d54 37.84 37.84 37.84 37.84 37.84 37.84 37.84

入射瞳位置 66.60 93.85 126.42 161.78 195.86 78.32 180.92
射出瞳位置 -66.74 -66.74 -66.74 -66.74 -66.74 -66.74 -66.74
前側主点位置 82.77 118.55 149.56 156.07 111.07 98.82 140.06
後側主点位置 17.84 -2.16 -32.16 -72.16 -122.16 9.84 -98.16

ズームレンズ群データ
群 始面 焦点距離 レンズ構成長 前側主点位置 後側主点位置
1 1 49.61 120.01 67.47 20.12
2 22 -21.90 19.40 2.33 -12.40
3 31 -50.80 3.89 -0.03 -2.22
4 34 31.68 84.24 2.49 -64.04

単レンズデータ
レンズ 始面 焦点距離
1 1 -86.72
2 6 -124.57
3 8 201.97
4 10 139.88
5 12 143.78
6 13 -158.58
7 15 -155.34
8 16 115.79
9 18 134.60
10 20 174.87
11 22 -27.57
12 24 29.81
13 25 -24.04
14 27 -99.76
15 29 101.44
16 31 -30.70
17 32 78.44
18 35 70.62
19 37 64.77
20 39 68.62
21 40 -58.32
22 42 48.41
23 43 -43.76
24 45 46.73
25 47 36.19
26 48 -14.45
27 50 15.97
28 51 -14.70
29 53 65.86 (Numerical reference example )
unit mm

Surface data Surface number rd nd vd θgF Effective diameter Focal length
1 0.00000 1.00000 1.000000 0.00 0.0000 107.981 0.000
2 0.00000 4.00000 1.000000 0.00 0.0000 106.295 0.000
3 0.00000 1.00000 1.000000 0.00 0.0000 99.554 0.000
4 3301.38021 3.20000 1.772499 49.60 0.5520 97.265 -86.724
5 65.94298 22.90783 1.000000 0.00 0.0000 83.220 0.000
6 -133.92432 2.70000 1.772499 49.60 0.5520 82.835 -124.568
7 350.84805 0.19130 1.000000 0.00 0.0000 84.581 0.000
8 137.82316 7.11488 1.922860 20.88 0.6282 86.749 201.971
9 499.95189 1.99581 1.000000 0.00 0.0000 86.564 0.000
10 394.92486 14.22596 1.603001 65.44 0.5401 86.519 139.877
11 -106.28694 0.19429 1.000000 0.00 0.0000 86.232 0.000
12 169.41603 14.44110 1.438750 94.66 0.5340 77.904 143.782
13 -98.28783 2.50000 1.800000 29.84 0.6017 77.292 -158.581
14 -429.69134 6.83608 1.000000 0.00 0.0000 76.756 0.000
15 133.80658 2.50000 1.738000 32.26 0.5899 76.179 -155.338
16 61.49109 17.20417 1.438750 94.66 0.5340 73.905 115.791
17 -271.23437 0.20000 1.000000 0.00 0.0000 73.928 0.000
18 93.79430 11.34539 1.537150 74.81 0.5390 72.844 134.595
19 -306.33493 0.20000 1.000000 0.00 0.0000 72.181 0.000
20 80.00000 6.24893 1.790000 45.50 0.5720 65.449 174.871
21 182.19059 (variable) 1.000000 0.00 0.0000 63.802 0.000

22 113.13368 1.20000 1.882997 40.76 0.5667 30.984 -27.568
23 20.02798 3.97446 1.000000 0.00 0.0000 25.858 0.000
24 88.32738 4.75661 1.846660 23.78 0.6034 25.738 29.814
25 -34.94623 0.70000 1.772499 49.60 0.5520 25.017 -24.044
26 40.40381 5.34167 1.000000 0.00 0.0000 22.495 0.000
27 -19.56895 0.70000 1.481157 80.19 0.5451 22.495 -99.765
28 -33.35485 0.16000 1.000000 0.00 0.0000 23.783 0.000
29 47.14355 2.57190 1.654115 39.68 0.5737 26.133 101.438
30 157.03132 (variable) 1.000000 0.00 0.0000 26.240 0.000

31 -29.79038 0.90000 1.651597 58.55 0.5425 26.695 -30.704
32 62.41469 2.98568 1.808095 22.76 0.6307 29.843 78.438
33 2407.63316 (variable) 1.000000 0.00 0.0000 30.374 0.000

34 0.00000 1.28971 1.000000 0.00 0.0000 35.998 0.000
35 1842.31787 4.70279 1.754999 52.32 0.5475 37.171 70.615
36 -55.10006 0.20000 1.000000 0.00 0.0000 37.740 0.000
37 55.00293 6.49678 1.618000 63.33 0.5441 39.458 64.766
38 -142.30410 0.20000 1.000000 0.00 0.0000 39.237 0.000
39 57.71997 8.31308 1.496999 81.54 0.5375 37.246 68.621
40 -79.93435 1.20000 2.001000 29.13 0.5997 35.600 -58.318
41 224.78483 0.19955 1.000000 0.00 0.0000 34.639 0.000
42 49.40250 8.03398 1.516330 64.14 0.5353 33.777 48.411
43 -48.14822 1.10000 1.772499 49.60 0.5520 32.745 -43.764
44 116.50951 18.49468 1.000000 0.00 0.0000 31.335 0.000
45 42.05126 5.24588 1.487490 70.23 0.5300 25.739 46.734
46 -48.03668 0.19969 1.000000 0.00 0.0000 25.113 0.000
47 31.33921 5.16008 1.487490 70.23 0.5300 22.475 36.189
48 -38.47777 1.00000 2.000690 25.46 0.6133 21.641 -14.447
49 23.81024 1.59323 1.000000 0.00 0.0000 20.522 0.000
50 45.78379 7.27774 1.808095 22.76 0.6307 20.775 15.968
51 -16.92438 1.00000 1.882997 40.76 0.5667 20.953 -14.696
52 58.63013 7.90554 1.000000 0.00 0.0000 21.674 0.000
53 32.95285 4.62576 1.487490 70.23 0.5300 27.834 65.861
54 -1373.94491 0.00000 1.000000 0.00 0.0000 27.927 0.000
Image plane ∞

11th surface of aspheric data
K = 3.59941e+000 A 4= 4.82467e-007 A 6= 8.82450e-011 A 8= 3.21596e-014
A10=-8.57606e-018 A12= 2.19453e-020 A14=-1.28985e-023 A16= 4.04224e-027

22nd side
K = 9.92312e+000 A 4= 3.70508e-006 A 6=-1.52834e-008 A 8= 1.21937e-010
A10=-9.11680e-013 A12= 3.95965e-015 A14=-8.67212e-018 A16= 7.15932e-021

Various data zoom ratio 8.00

Focal length 20.00 40.00 70.00 110.00 160.00 28.00 136.00
F number 2.80 2.79 2.79 2.80 3.63 2.79 3.12
Angle of view 37.87 21.24 12.52 8.05 5.55 29.05 6.52
Image height 15.55 15.55 15.55 15.55 15.55 15.55 15.55
Total lens length 316.08 316.08 316.08 316.08 316.08 316.08 316.08
BF 37.84 37.84 37.84 37.84 37.84 37.84 37.84

d21 0.68 20.64 31.92 38.52 42.42 11.34 40.90
d30 40.63 18.60 8.25 5.51 7.42 28.71 6.13
d33 9.40 11.47 10.54 6.68 0.88 10.67 3.69
d54 37.84 37.84 37.84 37.84 37.84 37.84 37.84

Entrance pupil position 66.60 93.85 126.42 161.78 195.86 78.32 180.92
Exit pupil position -66.74 -66.74 -66.74 -66.74 -66.74 -66.74 -66.74
Front principal point position 82.77 118.55 149.56 156.07 111.07 98.82 140.06
Rear principal point position 17.84 -2.16 -32.16 -72.16 -122.16 9.84 -98.16

Zoom lens group data group Starting surface Focal length Lens construction length Front principal point position Rear principal point position
1 1 49.61 120.01 67.47 20.12
2 22 -21.90 19.40 2.33 -12.40
3 31 -50.80 3.89 -0.03 -2.22
4 34 31.68 84.24 2.49 -64.04

Single lens data lens Starting surface Focal length
1 1 -86.72
2 6 -124.57
3 8 201.97
4 10 139.88
5 12 143.78
6 13 -158.58
7 15 -155.34
8 16 115.79
9 18 134.60
10 20 174.87
11 22 -27.57
12 24 29.81
13 25 -24.04
14 27 -99.76
15 29 101.44
16 31 -30.70
17 32 78.44
18 35 70.62
19 37 64.77
20 39 68.62
21 40 -58.32
22 42 48.41
23 43 -43.76
24 45 46.73
25 47 36.19
26 48 -14.45
27 50 15.97
28 51 -14.70
29 53 65.86

（数値実施例６）
単位 mm

面データ
面番号 r d nd vd θgF 有効径 焦点距離
1 694.63297 4.70000 1.772499 49.60 0.5520 189.820 -301.091
2 174.35604 36.34541 1.000000 0.00 0.0000 169.744 0.000
3 -345.87005 4.50000 1.772499 49.60 0.5520 165.969 -239.925
4 405.78163 0.15000 1.000000 0.00 0.0000 160.840 0.000
5 320.93254 9.27710 1.717362 29.51 0.5985 160.632 722.711
6 821.58066 7.68311 1.000000 0.00 0.0000 159.840 0.000
7 -4059.76625 14.00000 1.537750 74.70 0.5392 158.879 562.644
8 -282.75571 0.20000 1.000000 0.00 0.0000 158.209 0.000
9 2073.71256 4.40000 1.805177 25.43 0.6100 149.616 -429.504
10 298.46709 15.00000 1.496999 81.54 0.5375 144.938 428.356
11 -737.62866 41.47001 1.000000 0.00 0.0000 144.002 0.000
12 532.77107 17.07760 1.496999 81.54 0.5375 135.521 366.485
13 -275.03106 0.15000 1.000000 0.00 0.0000 136.245 0.000
14 373.83547 12.43394 1.496999 81.54 0.5375 136.338 499.104
15 -735.47108 0.15000 1.000000 0.00 0.0000 135.980 0.000
16 321.89913 8.63668 1.603112 60.64 0.5415 133.169 669.560
17 1546.90558 (可変) 1.000000 0.00 0.0000 132.151 0.000

18 557.31952 1.50000 1.772499 49.60 0.5520 71.754 -117.891
19 78.50944 5.64201 1.000000 0.00 0.0000 65.264 0.000
20 164.90888 1.50000 1.729157 54.68 0.5444 63.828 -53.891
21 31.72254 10.45708 1.846660 23.78 0.6205 54.636 75.846
22 52.66330 (可変) 1.000000 0.00 0.0000 53.044 0.000

23 -73.30788 1.50000 1.610000 66.61 0.5897 46.497 -159.210
24 -298.00359 (可変) 1.000000 0.00 0.0000 46.368 0.000

25 -875.81754 6.25242 1.620411 60.29 0.5427 53.275 250.516
26 -132.80441 0.15000 1.000000 0.00 0.0000 54.724 0.000
27 176.16799 11.10590 1.487490 70.23 0.5300 56.601 140.704
28 -110.61392 0.09304 1.000000 0.00 0.0000 57.235 0.000
29 -123.56943 1.60000 1.805181 25.42 0.6161 57.197 -304.228
30 -248.48383 (可変) 1.000000 0.00 0.0000 57.757 0.000

31 112.13772 1.60000 1.805181 25.42 0.6161 58.549 -175.890
32 62.43663 9.30397 1.487490 70.23 0.5300 57.712 120.246
33 -965.22417 0.15000 1.000000 0.00 0.0000 57.728 0.000
34 83.18976 7.65369 1.620411 60.29 0.5427 57.638 116.748
35 -557.28865 (可変) 1.000000 0.00 0.0000 57.124 0.000

36 0.00000 2.98000 1.000000 0.00 0.0000 30.108 0.000
37 -179.22297 1.40000 1.788001 47.37 0.5559 28.803 -22.476
38 19.83127 7.30654 1.854780 24.80 0.6122 27.176 25.231
39 184.54207 1.40000 1.788001 47.37 0.5559 26.509 -281.614
40 100.64528 5.93408 1.000000 0.00 0.0000 26.008 0.000
41 -34.14071 19.74135 1.772499 49.60 0.5520 25.198 -33.926
42 144.26514 8.40424 1.000000 0.00 0.0000 29.352 0.000
43 -42.19847 1.50000 1.537750 74.70 0.5392 31.637 -112.842
44 -139.25698 5.81819 1.639999 60.08 0.5370 33.783 63.757
45 -32.17170 0.20000 1.000000 0.00 0.0000 34.793 0.000
46 -556.68562 1.50000 2.001000 29.13 0.5997 35.648 -44.157
47 48.50266 8.48932 1.516330 64.14 0.5353 36.268 54.619
48 -63.91886 0.20000 1.000000 0.00 0.0000 37.242 0.000
49 97.82038 7.00000 1.496999 81.54 0.5375 39.012 88.219
50 -77.98223 0.19995 1.000000 0.00 0.0000 39.256 0.000
51 51.78855 10.69086 1.438750 94.93 0.5340 38.517 58.929
52 -48.61993 2.66580 1.000000 0.00 0.0000 37.490 0.000
53 -41.25286 1.50000 2.000690 25.46 0.6133 34.946 -49.541
54 -239.33499 5.00002 1.858956 22.73 0.6284 35.293 62.651
55 -44.73580 8.00000 1.000000 0.00 0.0000 35.428 0.000
56 0.00000 33.00000 1.608590 46.44 0.5664 50.000 0.000
57 0.00000 13.20000 1.516330 64.15 0.5352 50.000 0.000
58 0.00000 10.00000 1.000000 0.00 0.0000 50.000 0.000
像面 ∞

非球面データ
第18面
K = 0.00000e+000 A 4= 1.64562e-007 A 6=-6.22251e-011 A 8= 4.00309e-014
A10=-4.48817e-017 A12= 8.54407e-021

第34面
K = 0.00000e+000 A 4= 2.46591e-009 A 6=-4.58726e-010 A 8= 1.17523e-012
A10=-1.27190e-015 A12= 4.91302e-019

各種データ
ズーム比 30.00

焦点距離 6.50 15.00 35.00 87.00 195.00
Fナンバー 1.49 1.49 1.50 1.50 2.20
画角 40.24 20.14 8.93 3.62 1.62
像高 5.50 5.50 5.50 5.50 5.50
レンズ全長 625.00 625.00 625.00 625.00 625.00
BF 10.00 10.00 10.00 10.00 10.00

d17 3.00 41.48 91.52 148.35 214.18
d22 24.32 22.28 19.63 16.62 13.13
d24 204.21 110.10 45.02 18.79 3.00
d30 1.00 50.31 44.56 1.00 2.87
d35 1.66 10.02 33.46 49.43 1.00

入射瞳位置 121.23 154.58 231.91 454.25 1308.56
射出瞳位置 99.70 99.70 99.70 99.70 99.70
前側主点位置128.20 172.08 280.57 625.62 1927.46
後側主点位置 3.50 -5.00 -25.00 -77.00 -185.00

ズームレンズ群データ
群 始面 焦点距離 レンズ構成長 前側主点位置 後側主点位置
1 1 185.24 176.17 152.55 90.13
2 18 -59.52 19.10 9.38 -2.90
3 23 -159.21 1.50 -0.30 -1.24
4 25 127.78 19.20 5.66 -6.85
5 31 91.10 18.71 6.10 -6.08
6 36 32.27 146.13 48.46 3.16

単レンズデータ
レンズ 始面 焦点距離
1 1 -301.09
2 3 -239.93
3 5 722.71
4 7 562.64
5 9 -429.50
6 10 428.36
7 12 366.49
8 14 499.10
9 16 669.56
10 18 -117.89
11 20 -53.89
12 21 75.85
13 23 -159.21
14 25 250.52
15 27 140.70
16 29 -304.23
17 31 -175.89
18 32 120.25
19 34 116.75
20 37 -22.48
21 38 25.23
22 39 -281.61
23 41 -33.93
24 43 -112.84
25 44 63.76
26 46 -44.16
27 47 54.62
28 49 88.22
29 51 58.93
30 53 -49.54
31 54 62.65
32 56 0.00
33 57 0.00
(Numerical Example 6)
unit mm

Surface data surface number rd nd vd θgF Effective diameter Focal length
1 694.63297 4.70000 1.772499 49.60 0.5520 189.820 -301.091
2 174.35604 36.34541 1.000000 0.00 0.0000 169.744 0.000
3 -345.87005 4.50000 1.772499 49.60 0.5520 165.969 -239.925
4 405.78163 0.15000 1.000000 0.00 0.0000 160.840 0.000
5 320.93254 9.27710 1.717362 29.51 0.5985 160.632 722.711
6 821.58066 7.68311 1.000000 0.00 0.0000 159.840 0.000
7 -4059.76625 14.00000 1.537750 74.70 0.5392 158.879 562.644
8 -282.75571 0.20000 1.000000 0.00 0.0000 158.209 0.000
9 2073.71256 4.40000 1.805177 25.43 0.6100 149.616 -429.504
10 298.46709 15.00000 1.496999 81.54 0.5375 144.938 428.356
11 -737.62866 41.47001 1.000000 0.00 0.0000 144.002 0.000
12 532.77107 17.07760 1.496999 81.54 0.5375 135.521 366.485
13 -275.03106 0.15000 1.000000 0.00 0.0000 136.245 0.000
14 373.83547 12.43394 1.496999 81.54 0.5375 136.338 499.104
15 -735.47108 0.15000 1.000000 0.00 0.0000 135.980 0.000
16 321.89913 8.63668 1.603112 60.64 0.5415 133.169 669.560
17 1546.90558 (variable) 1.000000 0.00 0.0000 132.151 0.000

18 557.31952 1.50000 1.772499 49.60 0.5520 71.754 -117.891
19 78.50944 5.64201 1.000000 0.00 0.0000 65.264 0.000
20 164.90888 1.50000 1.729157 54.68 0.5444 63.828 -53.891
21 31.72254 10.45708 1.846660 23.78 0.6205 54.636 75.846
22 52.66330 (variable) 1.000000 0.00 0.0000 53.044 0.000

23 -73.30788 1.50000 1.610000 66.61 0.5897 46.497 -159.210
24 -298.00359 (variable) 1.000000 0.00 0.0000 46.368 0.000

25 -875.81754 6.25242 1.620411 60.29 0.5427 53.275 250.516
26 -132.80441 0.15000 1.000000 0.00 0.0000 54.724 0.000
27 176.16799 11.10590 1.487490 70.23 0.5300 56.601 140.704
28 -110.61392 0.09304 1.000000 0.00 0.0000 57.235 0.000
29 -123.56943 1.60000 1.805181 25.42 0.6161 57.197 -304.228
30 -248.48383 (variable) 1.000000 0.00 0.0000 57.757 0.000

31 112.13772 1.60000 1.805181 25.42 0.6161 58.549 -175.890
32 62.43663 9.30397 1.487490 70.23 0.5300 57.712 120.246
33 -965.22417 0.15000 1.000000 0.00 0.0000 57.728 0.000
34 83.18976 7.65369 1.620411 60.29 0.5427 57.638 116.748
35 -557.28865 (variable) 1.000000 0.00 0.0000 57.124 0.000

36 0.00000 2.98000 1.000000 0.00 0.0000 30.108 0.000
37 -179.22297 1.40000 1.788001 47.37 0.5559 28.803 -22.476
38 19.83127 7.30654 1.854780 24.80 0.6122 27.176 25.231
39 184.54207 1.40000 1.788001 47.37 0.5559 26.509 -281.614
40 100.64528 5.93408 1.000000 0.00 0.0000 26.008 0.000
41 -34.14071 19.74135 1.772499 49.60 0.5520 25.198 -33.926
42 144.26514 8.40424 1.000000 0.00 0.0000 29.352 0.000
43 -42.19847 1.50000 1.537750 74.70 0.5392 31.637 -112.842
44 -139.25698 5.81819 1.639999 60.08 0.5370 33.783 63.757
45 -32.17170 0.20000 1.000000 0.00 0.0000 34.793 0.000
46 -556.68562 1.50000 2.001000 29.13 0.5997 35.648 -44.157
47 48.50266 8.48932 1.516330 64.14 0.5353 36.268 54.619
48 -63.91886 0.20000 1.000000 0.00 0.0000 37.242 0.000
49 97.82038 7.00000 1.496999 81.54 0.5375 39.012 88.219
50 -77.98223 0.19995 1.000000 0.00 0.0000 39.256 0.000
51 51.78855 10.69086 1.438750 94.93 0.5340 38.517 58.929
52 -48.61993 2.66580 1.000000 0.00 0.0000 37.490 0.000
53 -41.25286 1.50000 2.000690 25.46 0.6133 34.946 -49.541
54 -239.33499 5.00002 1.858956 22.73 0.6284 35.293 62.651
55 -44.73580 8.00000 1.000000 0.00 0.0000 35.428 0.000
56 0.00000 33.00000 1.608590 46.44 0.5664 50.000 0.000
57 0.00000 13.20000 1.516330 64.15 0.5352 50.000 0.000
58 0.00000 10.00000 1.000000 0.00 0.0000 50.000 0.000
Image plane ∞

18th surface of aspheric data
K = 0.00000e+000 A 4= 1.64562e-007 A 6=-6.22251e-011 A 8= 4.00309e-014
A10=-4.48817e-017 A12=8.54407e-021

34th side
K = 0.00000e+000 A 4= 2.46591e-009 A 6=-4.58726e-010 A 8= 1.17523e-012
A10=-1.27190e-015 A12=4.91302e-019

Various data Zoom ratio 30.00

Focal length 6.50 15.00 35.00 87.00 195.00
F number 1.49 1.49 1.50 1.50 2.20
Angle of view 40.24 20.14 8.93 3.62 1.62
Image height 5.50 5.50 5.50 5.50 5.50
Total lens length 625.00 625.00 625.00 625.00 625.00
BF 10.00 10.00 10.00 10.00 10.00

d17 3.00 41.48 91.52 148.35 214.18
d22 24.32 22.28 19.63 16.62 13.13
d24 204.21 110.10 45.02 18.79 3.00
d30 1.00 50.31 44.56 1.00 2.87
d35 1.66 10.02 33.46 49.43 1.00

Entrance pupil position 121.23 154.58 231.91 454.25 1308.56
Exit pupil position 99.70 99.70 99.70 99.70 99.70
Front principal point position 128.20 172.08 280.57 625.62 1927.46
Rear principal point position 3.50 -5.00 -25.00 -77.00 -185.00

Zoom lens group data group Starting surface Focal length Lens construction length Front principal point position Rear principal point position
1 1 185.24 176.17 152.55 90.13
2 18 -59.52 19.10 9.38 -2.90
3 23 -159.21 1.50 -0.30 -1.24
4 25 127.78 19.20 5.66 -6.85
5 31 91.10 18.71 6.10 -6.08
6 36 32.27 146.13 48.46 3.16

Single lens data lens Starting surface Focal length
1 1 -301.09
2 3 -239.93
3 5 722.71
4 7 562.64
5 9 -429.50
6 10 428.36
7 12 366.49
8 14 499.10
9 16 669.56
10 18 -117.89
11 20 -53.89
12 21 75.85
13 23 -159.21
14 25 250.52
15 27 140.70
16 29 -304.23
17 31 -175.89
18 32 120.25
19 34 116.75
20 37 -22.48
21 38 25.23
22 39 -281.61
23 41 -33.93
24 43 -112.84
25 44 63.76
26 46 -44.16
27 47 54.62
28 49 88.22
29 51 58.93
30 53 -49.54
31 54 62.65
32 56 0.00
33 57 0.00

（数値実施例７）
単位 mm

面データ
面番号 r d nd vd θgF 有効径 焦点距離
1 724.51066 4.70000 1.772499 49.60 0.5520 186.966 -304.376
2 177.65649 36.34541 1.000000 0.00 0.0000 167.636 0.000
3 -334.43356 4.50000 1.772499 49.60 0.5520 162.797 -221.458
4 355.77432 0.15000 1.000000 0.00 0.0000 157.438 0.000
5 324.36130 9.27710 1.717362 29.51 0.5985 157.379 693.423
6 907.55001 7.19856 1.000000 0.00 0.0000 156.661 0.000
7 -3779.17354 14.00000 1.537750 74.70 0.5392 155.784 523.098
8 -262.92821 0.20000 1.000000 0.00 0.0000 155.250 0.000
9 2878.92552 4.40000 1.805177 25.43 0.6100 146.767 -400.188
10 292.00344 15.00000 1.496999 81.54 0.5375 142.167 412.264
11 -681.78531 38.62132 1.000000 0.00 0.0000 141.277 0.000
12 453.15120 17.07760 1.496999 81.54 0.5375 136.144 339.648
13 -266.88741 0.15000 1.000000 0.00 0.0000 136.665 0.000
14 397.08308 12.43394 1.496999 81.54 0.5375 136.591 500.709
15 -664.88413 0.15000 1.000000 0.00 0.0000 136.231 0.000
16 317.07499 8.63668 1.603112 60.64 0.5415 133.174 656.945
17 1546.90558 (可変) 1.000000 0.00 0.0000 132.164 0.000

18 557.31952 1.50000 1.640000 66.08 0.5581 71.319 -182.508
19 97.99209 5.64201 1.000000 0.00 0.0000 65.632 0.000
20 214.52256 1.50000 1.729157 54.68 0.5444 62.945 -48.133
21 30.18557 10.45708 1.846660 23.78 0.6205 52.168 75.544
22 47.61842 (可変) 1.000000 0.00 0.0000 49.931 0.000

23 -71.94628 1.50000 1.595220 67.74 0.5442 49.979 -133.745
24 -729.38818 (可変) 1.000000 0.00 0.0000 49.590 0.000

25 -679.81078 6.25242 1.620411 60.29 0.5427 51.275 280.916
26 -139.64753 0.15000 1.000000 0.00 0.0000 52.812 0.000
27 161.63045 11.10590 1.487490 70.23 0.5300 54.568 130.942
28 -103.69642 0.09304 1.000000 0.00 0.0000 55.162 0.000
29 -115.91506 1.60000 1.805181 25.42 0.6161 55.114 -287.485
30 -231.48906 (可変) 1.000000 0.00 0.0000 55.655 0.000

31 116.12114 1.60000 1.805181 25.42 0.6161 56.302 -161.121
32 61.16146 9.30397 1.487490 70.23 0.5300 55.510 113.281
33 -559.91890 0.15000 1.000000 0.00 0.0000 55.542 0.000
34 82.12364 7.65369 1.620411 60.29 0.5427 55.408 115.445
35 -557.28865 (可変) 1.000000 0.00 0.0000 54.790 0.000

36 0.00000 2.98000 1.000000 0.00 0.0000 29.889 0.000
37 -119.53265 1.40000 1.788001 47.37 0.5559 28.757 -20.827
38 19.23387 7.30654 1.854780 24.80 0.6122 27.332 24.138
39 207.02673 1.40000 1.788001 47.37 0.5559 26.836 -251.493
40 101.20843 5.93408 1.000000 0.00 0.0000 26.383 0.000
41 -33.16799 19.74135 1.772499 49.60 0.5520 25.805 -38.835
42 416.66150 8.40424 1.000000 0.00 0.0000 31.160 0.000
43 -69.58050 1.50000 1.537750 74.70 0.5392 34.100 -121.779
44 1185.65890 6.48466 1.639999 60.08 0.5370 35.963 59.663
45 -39.53202 0.20000 1.000000 0.00 0.0000 36.795 0.000
46 -5039.22364 1.50000 2.001000 29.13 0.5997 37.289 -50.609
47 51.60133 8.47115 1.516330 64.14 0.5353 37.572 57.747
48 -67.25777 3.00000 1.000000 0.00 0.0000 38.306 0.000
49 108.58243 7.00000 1.496999 81.54 0.5375 39.949 90.079
50 -74.91659 0.19995 1.000000 0.00 0.0000 39.990 0.000
51 49.97442 9.61702 1.438750 94.93 0.5340 38.258 66.546
52 -66.49961 1.00000 1.000000 0.00 0.0000 36.893 0.000
53 -81.44536 1.50000 2.000690 25.46 0.6133 35.200 -43.440
54 95.98213 5.00003 1.858956 22.73 0.6284 34.188 57.226
55 -100.41826 8.00000 1.000000 0.00 0.0000 33.797 0.000
56 0.00000 33.00000 1.608590 46.44 0.5664 50.000 0.000
57 0.00000 13.20000 1.516330 64.15 0.5352 50.000 0.000
58 0.00000 10.00000 1.000000 0.00 0.0000 50.000 0.000
像面 ∞

非球面データ
第18面
K = 0.00000e+000 A 4= 1.56467e-007 A 6=-3.21341e-011 A 8= 4.36636e-014
A10=-4.53647e-017 A12= 8.70059e-021

第34面
K = 0.00000e+000 A 4= 5.77358e-008 A 6=-7.42579e-010 A 8= 1.90416e-012
A10=-2.11010e-015 A12= 8.41523e-019

各種データ
ズーム比 30.00

焦点距離 6.50 14.99 35.00 87.00 195.00
Fナンバー 1.49 1.49 1.50 1.50 2.20
画角 40.24 20.14 8.93 3.62 1.62
像高 5.50 5.50 5.50 5.50 5.50
レンズ全長 622.98 622.98 622.98 622.98 622.98
BF 10.00 10.00 10.00 10.00 10.00

d17 3.00 40.79 90.99 146.86 203.00
d22 11.47 13.58 16.39 19.52 22.66
d24 218.32 118.92 49.52 21.30 3.00
d30 1.00 52.45 45.71 1.00 2.94
d35 1.00 9.05 32.18 46.12 3.20

入射瞳位置 119.74 153.77 236.03 476.35 1374.30
射出瞳位置 114.12 114.12 114.12 114.12 114.12
前側主点位置126.65 170.93 282.79 636.04 1934.51
後側主点位置 3.50 -4.99 -25.00 -77.00 -185.00

ズームレンズ群データ
群 始面 焦点距離 レンズ構成長 前側主点位置 後側主点位置
1 1 179.44 172.84 148.75 87.34
2 18 -62.24 19.10 11.41 -1.18
3 23 -133.74 1.50 -0.10 -1.04
4 25 129.10 19.20 5.91 -6.60
5 31 90.11 18.71 6.32 -5.84
6 36 33.54 146.84 47.96 2.57

単レンズデータ
レンズ 始面 焦点距離
1 1 -304.38
2 3 -221.46
3 5 693.42
4 7 523.10
5 9 -400.19
6 10 412.26
7 12 339.65
8 14 500.71
9 16 656.95
10 18 -182.51
11 20 -48.13
12 21 75.54
13 23 -133.74
14 25 280.92
15 27 130.94
16 29 -287.49
17 31 -161.12
18 32 113.28
19 34 115.44
20 37 -20.83
21 38 24.14
22 39 -251.49
23 41 -38.84
24 43 -121.78
25 44 59.66
26 46 -50.61
27 47 57.75
28 49 90.08
29 51 66.55
30 53 -43.44
31 54 57.23
32 56 0.00
33 57 0.00
(Numerical Example 7)
unit mm

Surface data Surface number rd nd vd θgF Effective diameter Focal length
1 724.51066 4.70000 1.772499 49.60 0.5520 186.966 -304.376
2 177.65649 36.34541 1.000000 0.00 0.0000 167.636 0.000
3 -334.43356 4.50000 1.772499 49.60 0.5520 162.797 -221.458
4 355.77432 0.15000 1.000000 0.00 0.0000 157.438 0.000
5 324.36130 9.27710 1.717362 29.51 0.5985 157.379 693.423
6 907.55001 7.19856 1.000000 0.00 0.0000 156.661 0.000
7 -3779.17354 14.00000 1.537750 74.70 0.5392 155.784 523.098
8 -262.92821 0.20000 1.000000 0.00 0.0000 155.250 0.000
9 2878.92552 4.40000 1.805177 25.43 0.6100 146.767 -400.188
10 292.00344 15.00000 1.496999 81.54 0.5375 142.167 412.264
11 -681.78531 38.62132 1.000000 0.00 0.0000 141.277 0.000
12 453.15120 17.07760 1.496999 81.54 0.5375 136.144 339.648
13 -266.88741 0.15000 1.000000 0.00 0.0000 136.665 0.000
14 397.08308 12.43394 1.496999 81.54 0.5375 136.591 500.709
15 -664.88413 0.15000 1.000000 0.00 0.0000 136.231 0.000
16 317.07499 8.63668 1.603112 60.64 0.5415 133.174 656.945
17 1546.90558 (variable) 1.000000 0.00 0.0000 132.164 0.000

18 557.31952 1.50000 1.640000 66.08 0.5581 71.319 -182.508
19 97.99209 5.64201 1.000000 0.00 0.0000 65.632 0.000
20 214.52256 1.50000 1.729157 54.68 0.5444 62.945 -48.133
21 30.18557 10.45708 1.846660 23.78 0.6205 52.168 75.544
22 47.61842 (variable) 1.000000 0.00 0.0000 49.931 0.000

23 -71.94628 1.50000 1.595220 67.74 0.5442 49.979 -133.745
24 -729.38818 (variable) 1.000000 0.00 0.0000 49.590 0.000

25 -679.81078 6.25242 1.620411 60.29 0.5427 51.275 280.916
26 -139.64753 0.15000 1.000000 0.00 0.0000 52.812 0.000
27 161.63045 11.10590 1.487490 70.23 0.5300 54.568 130.942
28 -103.69642 0.09304 1.000000 0.00 0.0000 55.162 0.000
29 -115.91506 1.60000 1.805181 25.42 0.6161 55.114 -287.485
30 -231.48906 (variable) 1.000000 0.00 0.0000 55.655 0.000

31 116.12114 1.60000 1.805181 25.42 0.6161 56.302 -161.121
32 61.16146 9.30397 1.487490 70.23 0.5300 55.510 113.281
33 -559.91890 0.15000 1.000000 0.00 0.0000 55.542 0.000
34 82.12364 7.65369 1.620411 60.29 0.5427 55.408 115.445
35 -557.28865 (variable) 1.000000 0.00 0.0000 54.790 0.000

36 0.00000 2.98000 1.000000 0.00 0.0000 29.889 0.000
37 -119.53265 1.40000 1.788001 47.37 0.5559 28.757 -20.827
38 19.23387 7.30654 1.854780 24.80 0.6122 27.332 24.138
39 207.02673 1.40000 1.788001 47.37 0.5559 26.836 -251.493
40 101.20843 5.93408 1.000000 0.00 0.0000 26.383 0.000
41 -33.16799 19.74135 1.772499 49.60 0.5520 25.805 -38.835
42 416.66150 8.40424 1.000000 0.00 0.0000 31.160 0.000
43 -69.58050 1.50000 1.537750 74.70 0.5392 34.100 -121.779
44 1185.65890 6.48466 1.639999 60.08 0.5370 35.963 59.663
45 -39.53202 0.20000 1.000000 0.00 0.0000 36.795 0.000
46 -5039.22364 1.50000 2.001000 29.13 0.5997 37.289 -50.609
47 51.60133 8.47115 1.516330 64.14 0.5353 37.572 57.747
48 -67.25777 3.00000 1.000000 0.00 0.0000 38.306 0.000
49 108.58243 7.00000 1.496999 81.54 0.5375 39.949 90.079
50 -74.91659 0.19995 1.000000 0.00 0.0000 39.990 0.000
51 49.97442 9.61702 1.438750 94.93 0.5340 38.258 66.546
52 -66.49961 1.00000 1.000000 0.00 0.0000 36.893 0.000
53 -81.44536 1.50000 2.000690 25.46 0.6133 35.200 -43.440
54 95.98213 5.00003 1.858956 22.73 0.6284 34.188 57.226
55 -100.41826 8.00000 1.000000 0.00 0.0000 33.797 0.000
56 0.00000 33.00000 1.608590 46.44 0.5664 50.000 0.000
57 0.00000 13.20000 1.516330 64.15 0.5352 50.000 0.000
58 0.00000 10.00000 1.000000 0.00 0.0000 50.000 0.000
Image plane ∞

18th surface of aspheric data
K = 0.00000e+000 A 4= 1.56467e-007 A 6=-3.21341e-011 A 8= 4.36636e-014
A10=-4.53647e-017 A12=8.70059e-021

34th side
K = 0.00000e+000 A 4= 5.77358e-008 A 6=-7.42579e-010 A 8= 1.90416e-012
A10=-2.11010e-015 A12=8.41523e-019

Various data Zoom ratio 30.00

Focal length 6.50 14.99 35.00 87.00 195.00
F number 1.49 1.49 1.50 1.50 2.20
Angle of view 40.24 20.14 8.93 3.62 1.62
Image height 5.50 5.50 5.50 5.50 5.50
Total lens length 622.98 622.98 622.98 622.98 622.98
BF 10.00 10.00 10.00 10.00 10.00

d17 3.00 40.79 90.99 146.86 203.00
d22 11.47 13.58 16.39 19.52 22.66
d24 218.32 118.92 49.52 21.30 3.00
d30 1.00 52.45 45.71 1.00 2.94
d35 1.00 9.05 32.18 46.12 3.20

Entrance pupil position 119.74 153.77 236.03 476.35 1374.30
Exit pupil position 114.12 114.12 114.12 114.12 114.12
Front principal point position 126.65 170.93 282.79 636.04 1934.51
Rear principal point position 3.50 -4.99 -25.00 -77.00 -185.00

Zoom lens group data group Starting surface Focal length Lens construction length Front principal point position Rear principal point position
1 1 179.44 172.84 148.75 87.34
2 18 -62.24 19.10 11.41 -1.18
3 23 -133.74 1.50 -0.10 -1.04
4 25 129.10 19.20 5.91 -6.60
5 31 90.11 18.71 6.32 -5.84
6 36 33.54 146.84 47.96 2.57

Single lens data lens Starting surface Focal length
1 1 -304.38
2 3 -221.46
3 5 693.42
4 7 523.10
5 9 -400.19
6 10 412.26
7 12 339.65
8 14 500.71
9 16 656.95
10 18 -182.51
11 20 -48.13
12 21 75.54
13 23 -133.74
14 25 280.92
15 27 130.94
16 29 -287.49
17 31 -161.12
18 32 113.28
19 34 115.44
20 37 -20.83
21 38 24.14
22 39 -251.49
23 41 -38.84
24 43 -121.78
25 44 59.66
26 46 -50.61
27 47 57.75
28 49 90.08
29 51 66.55
30 53 -43.44
31 54 57.23
32 56 0.00
33 57 0.00

Figure 0007134757000002
Figure 0007134757000002

Ｌ１ 正の屈折力を有する第１レンズ群
Ｌ２ 負の屈折力を有する第２レンズ群
Ｌ３・Ｌ４ 変倍のために移動する少なくとも１つのレンズ群 L1 first lens group with positive refractive power L2 second lens group with negative refractive power L3 L4 at least one lens group that moves for zooming

Claims (10)

物体側から像側へ順に、
正の屈折力を有する第１レンズ群と、
負の屈折力を有するレンズ群を含み、広角端から望遠端への変倍に際して、物体側へ移動することなく像側へ移動する１つまたは２つのレンズ群からなる第２群と、
広角端から望遠端への変倍に際して物体側へ移動するレンズ群とを含み、
隣り合うレンズ群の各組は、変倍のために間隔が変化し、
前記第２群に含まれる負レンズＧ２ｎのアッベ数および部分分散比をそれぞれνｄｎおよびθｇＦｎとして、条件式
θｇＦｎ－（－１．６６５０×１０－７・νｄｎ３＋５．２１３０×１０－５・νｄｎ２－５．６５６０×１０－３・νｄｎ＋０．７３７０）＞０、
０．５５４３＜θｇＦｎ、および
５０．０＜νｄｎ＜８５．０
を満足し、アッべ数νｄおよび部分分散比θｇＦは、それぞれ、ｇ線、Ｆ線、Ｃ線およびｄ線に対する材料の屈折率をそれぞれＮｇ、ＮＦ、ＮＣおよびＮｄとして、式
νｄ＝（Ｎｄ－１）／（ＮＦ－ＮＣ）、および
θｇＦ＝（Ｎｇ－ＮＦ）／（ＮＦ－ＮＣ）
で表されることを特徴とするズームレンズ。 From the object side to the image side ,
a first lens group having positive refractive power;
a second group consisting of one or two lens groups including a lens group having negative refractive power and moving toward the image side without moving toward the object side during zooming from the wide-angle end to the telephoto end;
and a lens group that moves toward the object side during zooming from the wide-angle end to the telephoto end ,
each pair of adjacent lens groups varies in spacing for zooming,
The conditional expression θgFn−(−1.6650×10 −7 ·νdn 3 +5.2130×10 −5 ·νdn 2 where νdn and θgFn are the Abbe number and partial dispersion ratio of the negative lens G2n included in the second group , respectively. −5.6560×10 −3 ·νdn+0.7370)>0,
0.5543 <θgFn, and 50.0<νdn<85.0
and the Abbe number νd and the partial dispersion ratio θgF are given by the formula
νd = (Nd-1)/(NF-NC), and
θgF = (Ng-NF)/(NF-NC)
A zoom lens characterized by being represented by 前記第１レンズ群に含まれる正レンズＧ１ｐのアッベ数および部分分散比をそれぞれνｄｐおよびθｇＦｐとして、条件式
θｇＦｐ－｛（０．５８２８－０．５４３６）／（３６．２６－６０．４９）＊（νｄ ｐ－６０．４９）＋０．５４３６｝＞０
を満足することを特徴とする請求項１に記載のズームレンズ。 The conditional expression θgFp−{(0.5828−0.5436)/(36.26−60.49)* where νdp and θgFp are the Abbe number and partial dispersion ratio of the positive lens G1p included in the first lens group, respectively. (νd p−60.49)+0.5436}>0
2. The zoom lens according to claim 1, wherein: 前記第２群の広角端での焦点距離をｆ２、前記負レンズＧ２ｎの焦点距離をｆｎとして、条件式
１＜ｆｎ／ｆ２≦１０
を満足することを特徴とする請求項１または請求項２に記載のズームレンズ。 Assuming that the focal length of the second group at the wide- angle end is f2 , and the focal length of the negative lens G2n is fn , the conditional expression 1<fn/f2≤10
3. The zoom lens according to claim 1, wherein: 前記第１レンズ群の焦点距離をｆ１、前記正レンズＧ１ｐの焦点距離をｆｐとして、条件式
１＜ｆｐ／ｆ１≦１０
を満足することを特徴とする請求項２に記載のズームレンズ。 Assuming that the focal length of the first lens group is f1 and the focal length of the positive lens G1p is fp, the following conditional expression is satisfied: 1<fp/f1≤10
3. The zoom lens according to claim 2, wherein: 前記ｄ線に対する前記負レンズＧ２ｎの屈折率をｎｄｎとして、条件式
１．４８０＜ｎｄｎ＜１．７５０
を満足することを特徴とする請求項１ないし請求項４のうちいずれか１項に記載のズームレンズ。 Conditional expression 1.480<ndn<1.750 where ndn is the refractive index of the negative lens G2n for the d-line
5. The zoom lens according to any one of claims 1 to 4, wherein: 前記物体側へ移動するレンズ群の像側に、広角端から望遠端への変倍に際して物体側へ移動するレンズ群を含むことを特徴とする請求項１ないし請求項５のうちいずれか１項に記載のズームレンズ。 6. A lens group that moves toward the object side during zooming from the wide-angle end to the telephoto end is included on the image side of the lens group that moves toward the object side. The zoom lens described in the item. 前記第１レンズ群は、合焦のために移動するレンズ群を含むことを特徴とする請求項１ないし請求項６のうちいずれか１項に記載のズームレンズ。 7. The zoom lens according to any one of claims 1 to 6, wherein the first lens group includes a lens group that moves for focusing. 前記物体側へ移動するレンズ群の像側に、広角端から望遠端への変倍に際して物体側へ移動し且つ合焦のために移動するレンズ群を含むことを特徴とする請求項１ないし請求項６のうちいずれか１項に記載のズームレンズ。 3. A lens group that moves toward the object side during zooming from the wide-angle end to the telephoto end and that moves for focusing is included on the image side of the lens group that moves toward the object side. A zoom lens according to any one of claims 6 to 7. 前記第２群は、負の屈折力を有する２つのレンズ群からなることを特徴とする請求項１に記載のズームレンズ。 2. The zoom lens according to claim 1, wherein said second group comprises two lens groups having negative refractive power . 請求項１ないし請求項９のうちいずれか１項に記載のズームレンズと、
前記ズームレンズの像面に配された撮像素子とを有することを特徴とする撮像装置。 a zoom lens according to any one of claims 1 to 9 ;
and an imaging device arranged on the image plane of the zoom lens.
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