JP2001116989A5 - - Google Patents
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- JP2001116989A5 JP2001116989A5 JP1999298126A JP29812699A JP2001116989A5 JP 2001116989 A5 JP2001116989 A5 JP 2001116989A5 JP 1999298126 A JP1999298126 A JP 1999298126A JP 29812699 A JP29812699 A JP 29812699A JP 2001116989 A5 JP2001116989 A5 JP 2001116989A5
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- objective lens
- focal length
- satisfying
- conditional expression
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- 230000003287 optical Effects 0.000 description 6
- 230000004075 alteration Effects 0.000 description 4
- 206010010071 Coma Diseases 0.000 description 2
Description
【特許請求の範囲】
【請求項１】 物体側から順に、正の屈折力の第１群、正の屈折力の第２群、負の屈折力の第３群と、該３つのレンズ群を介して形成される物体像を正立正像とする正立光学系とで構成される対物レンズであって、該第１群、第２群、第３群のいずれか一つのレンズ群を光軸と垂直な方向に移動して像ブレの補正を行なうことを特徴とする防振機能を有した対物レンズ。
【請求項２】 対物レンズ全系の焦点距離をｆ、前記第１群の焦点距離をｆ１としたとき、
０．８＜ｆ１／ｆ＜１．２
の条件式を満足することを特徴とする請求項１の防振機能を有した対物レンズ。
【請求項３】 対物レンズ全系の焦点距離をｆ、前記第２群の焦点距離をｆ２としたとき、
０．５＜ｆ２／ｆ＜０．９
の条件式を満足することを特徴とする請求項１又は２の防振機能を有した対物レンズ。
【請求項４】 対物レンズ全系の焦点距離をｆ、前記第３群の焦点距離をｆ３としたとき、
０．２＜｜ｆ３／ｆ｜＜０．６
の条件式を満足することを特徴とする請求項１から３のいずれか１項の防振機能を有した対物レンズ。
【請求項５】 対物レンズ全系の焦点距離をｆ、前記第１群と第２群の主点間隔をｅ１２としたとき、
０．１５＜ｅ１２／ｆ＜０．３５
の条件式を満足することを特徴とする請求項１から４のいずれか１項の防振機能を有した対物レンズ。
【請求項６】 対物レンズ全系の焦点距離をｆ、前記第２群と第３群の主点間隔をｅ２３としたとき、
０．１＜ｅ２３／ｆ＜０．３
の条件式を満足することを特徴とする請求項１から５のいずれか１項の防振機能を有した対物レンズ。
【請求項７】 前記正立光学系の長さを空気換算したときの物体側の第１面から近軸像面までの距離をＬ、対物レンズ全系の焦点距離をｆとするとき、
Ｌ／ｆ＜０．９
なる条件を満足することを特徴とする請求項１から６のいずれか１項の防振機能を有した対物レンズ。
【請求項８】 前記第１群、第２群、第３群の３次の球面収差係数をＩ１，Ｉ２，Ｉ３、該第１群、第２群、第３群の３次のコマ収差係数をＩＩ１，ＩＩ２，ＩＩ３とするとき、
｜Ｉ １ ｜＜３
｜Ｉ ２ ｜＜３
｜Ｉ ３ ｜＜３
｜ＩＩ １ ｜＜４
｜ＩＩ ２ ｜＜４
｜ＩＩ ３ ｜＜４
なる条件を満足することを特徴とする請求項１から７のいずれか１項の防振機能を有した対物レンズ。
【請求項９】 請求項１から８のいずれか１項の防振機能を有した対物レンズと正の屈折力の接眼レンズから構成されるレンズ系を観察者の左右眼用に１対有することを特徴とする双眼鏡。
[Claims]
1. An object formed via the first group of positive refractive power, the second group of positive refractive power, the third group of negative refractive power, and the three lens groups in order from the object side. With an erect optical system that makes the image an erect imageConsists ofAn objective lens having an anti-vibration function for correcting image blur by moving any one of the first group, the second group, and the third group in a direction perpendicular to the optical axis. Objective lens with.
[Claim 2The focal length of the entire objective lens system is f, and the focal length of the first group is f.1When,
0.8 <f1/ F <1.2
It is characterized by satisfying the conditional expression ofClaim 1Objective lens with anti-vibration function.
[Claim 3The focal length of the entire objective lens system is f, and the focal length of the second group is f.2When,
0.5 <f2/ F <0.9
It is characterized by satisfying the conditional expression ofClaim 1 or 2Objective lens with anti-vibration function.
[Claim 4The focal length of the entire objective lens system is f, and the focal length of the third group is f.3When,
0.2 << f3/ F | <0.6
It is characterized by satisfying the conditional expression ofClaims 1 to 3An objective lens having the anti-vibration function according to any one of the above.
[Claim 5The focal length of the entire objective lens system is f, and the distance between the principal points of the first group and the second group is e.12When,
0.15 <e12/ F <0.35
It is characterized by satisfying the conditional expression ofClaims 1 to 4An objective lens having an anti-vibration function according to any one of the above.
[Claim 6The focal length of the entire objective lens system is f, and the distance between the principal points of the second and third groups is e.23When,
0.1 <e23/ F <0.3
It is characterized by satisfying the conditional expression ofClaims 1 to 5An objective lens having an anti-vibration function according to any one of the above.
[Claim 7When the distance from the first plane on the object side to the paraxial image plane when the length of the erect optical system is converted into air is L, and the focal length of the entire objective lens system is f.,
L / f <0.9
It is characterized by satisfying the above conditions.Claims 1 to 6An objective lens having an anti-vibration function according to any one of the above.
[Claim 8The third-order spherical aberration coefficients of the first group, the second group, and the third group are I.1, I2, I3, The third-order coma aberration coefficient of the first group, the second group, and the third group is II.1， II2， II3When
｜ I 1 ｜ ＜ 3
｜ I 2 ｜ ＜ 3
｜ I 3 ｜ ＜ 3
｜ II 1 ｜ ＜ 4
｜ II 2 ｜ ＜ 4
｜ II 3 ｜ ＜ 4
It is characterized by satisfying the above conditions.Claims 1 to 7An objective lens having an anti-vibration function according to any one of the above.
[Claim 9] Claims 1 to 8A pair of binoculars for the left and right eyes of an observer, which is composed of an objective lens having an anti-vibration function according to any one of the above and an eyepiece having a positive refractive power.
【００１１】
【課題を解決するための手段】
請求項１の発明の対物レンズは、物体側から順に、正の屈折力の第１群、正の屈折力の第２群、負の屈折力の第３群と、該３つのレンズ群を介して形成される物体像を正立正像とする正立光学系とで構成される対物レンズであって、該第１群、第２群、第３群のいずれか一つのレンズ群を光軸と垂直な方向に移動して像ブレの補正を行なうことを特徴としている。
0011
[Means for solving problems]
The objective lens of the invention of claim 1 passes through the first group of positive refractive power, the second group of positive refractive power, the third group of negative refractive power, and the three lens groups in order from the object side. It is an objective lens composed of an erect optical system in which an object image formed by the lens is an erect image, and any one of the first group, the second group, and the third group is used as an optical axis. It is characterized by moving in the vertical direction to correct image blur.
請求項２の発明は請求項１の発明において対物レンズ全系の焦点距離をｆ、前記第１群の焦点距離をｆ１としたとき、
０．８＜ｆ１／ｆ＜１．２
の条件式を満足することを特徴としている。
When invention of claim 2, f the focal length of the objective lens system in the invention of claim 1, the focal length of the first group was f 1,
0.8 <f 1 / f <1.2
It is characterized by satisfying the conditional expression of.
請求項３の発明は請求項１又は２の発明において、対物レンズ全系の焦点距離をｆ、前記第２群の焦点距離をｆ２としたとき、
０．５＜ｆ２／ｆ＜０．９
の条件式を満足することを特徴としている。
The invention of claim 3 is the invention of claim 1 or 2, when the focal length of the objective lens system f, and the focal length of the second group was a f 2,
0.5 <f 2 / f <0.9
It is characterized by satisfying the conditional expression of.
請求項４の発明は請求項１から３のいずれか１項の発明において、対物レンズ全系の焦点距離をｆ、前記第３群の焦点距離をｆ３としたとき、
０．２＜｜ｆ３／ｆ｜＜０．６
の条件式を満足することを特徴としている。
The invention of claim 4 is the invention of any one of claims 1 to 3, when the focal length of the objective lens system f, and the focal length of the third group was a f 3,
0.2 << f 3 / f | <0.6
It is characterized by satisfying the conditional expression of.
請求項５の発明は請求項１から４のいずれか１項の発明において、対物レンズ全系の焦点距離をｆ、前記第１群と第２群の主点間隔をｅ１２としたとき、
０．１５＜ｅ１２／ｆ＜０．３５
の条件式を満足することを特徴としている。
The invention of claim 5 is the invention of any one of claims 1 to 4, when the focal length of the objective lens system f, and the principal point interval between the first group and the second group was e 12,
0.15 <e 12 / f <0.35
It is characterized by satisfying the conditional expression of.
請求項６の発明は請求項１から５のいずれか１項の発明において、対物レンズ全系の焦点距離をｆ、前記第２群と第３群の主点間隔をｅ２３としたとき、
０．１＜ｅ２３／ｆ＜０．３
の条件式を満足することを特徴としている。
The invention of claim 6 is the invention of any one of claims 1 to 5, when the focal length of the objective lens system f, and the principal point interval between the second group and the third group was a e 23,
0.1 <e 23 / f <0.3
It is characterized by satisfying the conditional expression of.
請求項７の発明は請求項１から６のいずれか１項の発明において、前記正立光学系の長さを空気換算したときの物体側の第１面から近軸像面までの距離をＬ、対物レンズ全系の焦点距離をｆとするとき、
Ｌ／ｆ＜０．９
なる条件を満足することを特徴としている。
The invention of claim 7 is the invention of any one of claims 1 to 6, wherein the distance from the first plane on the object side to the paraxial image plane when the length of the erecting optical system is converted into air is L. , When the focal length of the entire objective lens system is f ,
L / f <0.9
It is characterized by satisfying the above conditions.
請求項８の発明は請求項１から７のいずれか１項の発明において、前記第１群、第２群、第３群の３次の球面収差係数をＩ１，Ｉ２，Ｉ３、該第１群、第２群、第３群の３次のコマ収差係数をＩＩ１，ＩＩ２，ＩＩ３とするとき、
｜Ｉ １ ｜＜３
｜Ｉ ２ ｜＜３
｜Ｉ ３ ｜＜３
｜ＩＩ １ ｜＜４
｜ＩＩ ２ ｜＜４
｜ＩＩ ３ ｜＜４
なる条件を満足することを特徴としている。
The invention of claim 8 is the invention of any one of claims 1 to 7, wherein the third-order spherical aberration coefficients of the first group, the second group, and the third group are I 1 , I 2 , I 3 , and the like. When the third-order coma aberration coefficients of the first group, the second group, and the third group are II 1 , II 2 , and II 3 .
｜ I 1 ｜ ＜ 3
｜ I 2 ｜ ＜ 3
｜ I 3 ｜ ＜ 3
｜ II 1 ｜ ＜ 4
｜ II 2 ｜ ＜ 4
｜ II 3 ｜ ＜ 4
It is characterized by satisfying the above conditions.
請求項９の発明の双眼鏡は、請求項１から８のいずれか１項の防振機能を有した対物レンズと正の屈折力の接眼レンズから構成されるレンズ系を観察者の左右眼用に１対有することを特徴としている。 The binoculars of the invention of claim 9 have a lens system composed of an objective lens having an anti-vibration function according to any one of claims 1 to 8 and an eyepiece having a positive refractive power for the left and right eyes of an observer. It is characterized by having one pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29812699A JP4585638B2 (en) | 1999-10-20 | 1999-10-20 | Objective lens having anti-vibration function and binoculars using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29812699A JP4585638B2 (en) | 1999-10-20 | 1999-10-20 | Objective lens having anti-vibration function and binoculars using the same |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2001116989A JP2001116989A (en) | 2001-04-27 |
| JP2001116989A5 true JP2001116989A5 (en) | 2006-12-07 |
| JP4585638B2 JP4585638B2 (en) | 2010-11-24 |
Family
ID=17855525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29812699A Expired - Fee Related JP4585638B2 (en) | 1999-10-20 | 1999-10-20 | Objective lens having anti-vibration function and binoculars using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4585638B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5028009B2 (en) * | 2005-12-07 | 2012-09-19 | キヤノン株式会社 | Observation optical system |
| JP5118937B2 (en) * | 2007-10-23 | 2013-01-16 | オリンパスメディカルシステムズ株式会社 | Imaging optical system |
| JP2012173562A (en) * | 2011-02-22 | 2012-09-10 | Tamron Co Ltd | Infrared lens |
| JP5949100B2 (en) * | 2012-04-26 | 2016-07-06 | 株式会社ニコン | Observation optical system |
| CN204374504U (en) * | 2012-07-04 | 2015-06-03 | 富士胶片株式会社 | Pick-up lens and possess the camera head of pick-up lens |
| JP2016166907A (en) | 2013-07-11 | 2016-09-15 | 株式会社 ニコンビジョン | Vibration-proof optical system |
| JP7015389B2 (en) * | 2018-06-14 | 2022-02-02 | 株式会社ニコンビジョン | Observation optical system |
| CN113504640B (en) * | 2021-06-02 | 2022-08-05 | 云南汉瑞光学仪器有限公司 | Low-distortion binocular optical system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06273669A (en) * | 1993-03-19 | 1994-09-30 | Nikon Corp | Compact zoom lens |
| JP3391890B2 (en) * | 1994-05-25 | 2003-03-31 | キヤノン株式会社 | Optical system having image deflecting means |
| JPH11264942A (en) * | 1998-01-06 | 1999-09-28 | Asahi Optical Co Ltd | Optical equipment for observation having image blur correction system |
| JP2000089104A (en) * | 1998-09-10 | 2000-03-31 | Asahi Optical Co Ltd | Vibration-proof optical system for observation optical apparatus |
| JP2001051209A (en) * | 1999-08-10 | 2001-02-23 | Asahi Optical Co Ltd | Vibration isolating observation optical system |
-
1999
- 1999-10-20 JP JP29812699A patent/JP4585638B2/en not_active Expired - Fee Related
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