JP2007199336A - Variable power optical system for ground telescope - Google Patents
Variable power optical system for ground telescope Download PDFInfo
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- JP2007199336A JP2007199336A JP2006017281A JP2006017281A JP2007199336A JP 2007199336 A JP2007199336 A JP 2007199336A JP 2006017281 A JP2006017281 A JP 2006017281A JP 2006017281 A JP2006017281 A JP 2006017281A JP 2007199336 A JP2007199336 A JP 2007199336A
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Abstract
Description
本発明は、地上用望遠鏡の変倍光学系に関する。 The present invention relates to a variable magnification optical system for a terrestrial telescope.
射撃用照準望遠鏡において、視界の広い低い倍率で標的を探し、正確な射撃を行なう為に、高い倍率に変倍させた状態で射撃を行なうことが有効である為、倍率の変化に伴い視度の変化のない、倍率の変化の大きい変倍光学系が望まれて、２倍比、３倍比、の光学系が開発され、近年においては４倍比の光学系まで開発されて市場に出回っており、さらに倍率比の大きいものが望まれている。 In the aiming telescope for shooting, it is effective to search for a target with a low magnification with a wide field of view, and to shoot with the magnification changed to a high magnification for accurate shooting. A variable power optical system with a large change in magnification is desired, and optical systems with a 2 × ratio and a 3 × ratio have been developed. Recently, optical systems with a 4 × ratio have been developed and are on the market. A higher magnification ratio is desired.
倍率の変化は、カメラレンズのような光学系においては、近年1０倍比を超えるレンズが提案されて、実用化に至っているが、射撃用照準望遠鏡の様に対物側から順に対物レンズ系と、対物レンズ系の像をリレーして再結像させる光学系と、その像を観察する為の接眼レンズを有する光学系において、リレーレンズ系で光軸方向に移動する二群のレンズを動かして倍率の変化を行なうタイプでは、倍率の変化を１倍を基準に４倍以上大きくする事は、衝撃が大きい射撃用照準望遠鏡においては、甚だ困難であった。 As for the change in magnification, in an optical system such as a camera lens, in recent years, a lens having a ratio exceeding 10 times has been proposed and has been put to practical use. Like an aiming telescope for shooting, In an optical system that relays and re-images the image of the objective lens system and an optical system that has an eyepiece for observing the image, the magnification is obtained by moving two groups of lenses that move in the optical axis direction in the relay lens system. In the type that changes the above, it is extremely difficult to increase the change in magnification by 4 times or more with reference to 1 time in a shooting aiming telescope having a large impact.
地上用望遠鏡で、対物側から順に対物レンズ系と、対物レンズ系の像をリレーして再結像させる光学系と、その像を観察する為の接眼レンズを有する光学系において、リレーレンズ系で５倍以上の倍率の変化を持つレンズ系を提供する事を課題とする。 In a telescope for ground, in order from the objective side, an objective lens system, an optical system that relays and re-images the image of the objective lens system, and an optical system that has an eyepiece for observing the image. It is an object to provide a lens system having a change in magnification of 5 times or more.
以上の課題を解決するために、本発明の地上用望遠鏡の光学系は、物体側から順に、対物レンズ系と、対物レンズ系で結像した倒立像を第１焦点面像とし、その像をリレーして正立像を再結像させ、それを第２焦点面像とする光学系と、その像を観察する為の接眼レンズを有する射撃用照準望遠鏡において、前記リレー光学系は、第１焦点面像から、正のパワーを持つコンデンサーレンズと、正のパワーを持つ第２群、正のパワーを持つ第３群と、負のパワーを持つフィールドレンズからなり、前記の第１焦点面像と第２焦点面像の位置を固定したまま、第２群と第３群のレンズを光軸方向に相対移動して変倍することを特徴とし、第１焦点面像、あるいは第２焦点面像の位置にレチクルを設置する光学系を提供する。 In order to solve the above problems, the optical system of the terrestrial telescope according to the present invention uses, in order from the object side, an objective lens system and an inverted image formed by the objective lens system as a first focal plane image. In a shooting aiming telescope having an optical system that relays to re-image an erect image and uses it as a second focal plane image, and an eyepiece for observing the image, the relay optical system has a first focus The surface image includes a condenser lens having a positive power, a second group having a positive power, a third group having a positive power, and a field lens having a negative power. While the position of the second focal plane image is fixed, the second and third lens groups are moved relative to each other in the optical axis direction to change the magnification. The first focal plane image or the second focal plane image An optical system in which a reticle is installed at the position of is provided.
物体側から順に、対物レンズ系と、対物レンズ系で結像した倒立像を第１焦点面像とし、その像をリレーして正立像を再結像させ、それを第２焦点面像とする光学系と、その像を観察する為の接眼レンズを有する射撃用照準望遠鏡において、前記リレー光学系は、第１焦点面像と第2焦点面像の位置を固定したまま、正のパワーを持つ第２群、正のパワーを持つ第３群で、第２群と第３群のレンズを光軸方向に相対移動して変倍する事ができ、本来、コンデンサーレンズ、フィールドレンズは変倍する為だけの目的には必要ないものであるが、対物レンズ系で結像された広い視界の像の光をリレーレンズ系に導く為には、コンデンサーレンズが必要となる。また、このコンデンサーレンズを設ける事で、コンデンサーレンズにより対物レンズ系で結像した倒立像を、第１焦点面像の拡大倍率を得ることができる。このレンズ系は広く一般に採用されているものである。 In order from the object side, the objective lens system and the inverted image formed by the objective lens system are used as the first focal plane image, and the image is relayed to re-image the erect image, which is used as the second focal plane image. In a shooting sighting telescope having an optical system and an eyepiece for observing the image, the relay optical system has a positive power while the positions of the first focal plane image and the second focal plane image are fixed. In the second group, the third group having positive power, the lenses of the second group and the third group can be moved relative to each other in the optical axis direction to change the magnification. Originally, the condenser lens and the field lens change the magnification. Although it is not necessary for the purpose only for the purpose, a condenser lens is required in order to guide light of a wide field image formed by the objective lens system to the relay lens system. Further, by providing this condenser lens, the magnification of the first focal plane image can be obtained from the inverted image formed by the condenser lens with the objective lens system. This lens system is widely used.
本発明は、対物レンズ系で結像した倒立像を第１焦点面像とし、その像をリレーして正立像を再結像させ、それを第２焦点面像とする光学系と、その像を観察する為の接眼レンズを有する射撃用照準望遠鏡において、前記リレー光学系は、第１焦点面像から、正のパワーを持つコンデンサーレンズと、正のパワーを持つ第２群、正のパワーを持つ第３群の後に、負のパワーを持つフィールドレンズからなることに特徴があるものである。ここに負のパワーを持つフィールドレンズを設置することにより前述のコンデンサーレンズ、正のパワーを持つ第２群、正のパワーを持つ第３群のレンズで、拡大した対物レンズ系で結像した倒立像の第１焦点面像をさらに拡大する事ができる。さらに負のレンズ系の為に、対物レンズ系で結像した第１焦点面像の光線を拡散する方向で第２焦点面に結像する事になり、その光線は、前述の接眼レンズの周辺を通る為、長いひとみ位置を得る事ができる。この事は、銃に取付けた射撃用照準望遠鏡の接眼レンズを、離れた位置から全視野を覗く事ができ、衝撃から目を守る為の重要なメリットを得る事ができるという特徴となる。 The present invention relates to an optical system in which an inverted image formed by an objective lens system is used as a first focal plane image, the image is relayed to re-image an erect image, and this is used as a second focal plane image. In the shooting sighting telescope having an eyepiece for observing the lens, the relay optical system has a positive power condenser lens, a positive power second group, and a positive power from the first focal plane image. It is characterized by comprising a field lens having negative power after the third group. By installing a field lens having a negative power here, the condenser lens, the second group having a positive power, and the third group lens having a positive power are inverted with an enlarged objective lens system. The first focal plane image of the image can be further magnified. Further, because of the negative lens system, the light beam of the first focal plane image formed by the objective lens system is imaged on the second focal plane in the direction of diffusing, and the light beam is transmitted around the eyepiece lens. Because it passes through, you can get a long pupil position. This is characterized by the fact that the eyesight lens of the shooting sighting telescope attached to the gun can be viewed through the entire field of view from a distant position, and an important merit for protecting the eyes from impact can be obtained.
倍率の変化の大きい変倍光学系でありながら、倍率の変化に伴い視度の変化のない射撃用照準望遠鏡を提供することができる。この為、視界の広い倍率で標的を探し、正確な射撃を行なう為に、高倍に変倍させた状態で射撃を行なうことが容易となる。長いひとみ位置を得る事ができる為、銃に取付けた射撃用照準望遠鏡の接眼レンズを、離れた位置から全視野を覗く事ができ、衝撃から目を守る事ができる。 It is possible to provide a shooting aiming telescope that does not change a diopter with a change in magnification while being a variable magnification optical system having a large change in magnification. For this reason, in order to search for a target with a wide magnification in the field of view and perform accurate shooting, it becomes easy to perform shooting in a state where the magnification is changed to a high magnification. Because the long pupil position can be obtained, the eyesight lens of the shooting sighting telescope attached to the gun can be viewed from the distance and the eye can be protected from impact.
以下、本発明による実施形態の一部の例を図面に基づいて詳細に説明する。図1は本発明に係る光学レンズ配置図である。対物レンズ系（1）により入射した光線は、第１焦点面（２）に倒立像を結ぶ。 Hereinafter, some examples of embodiments according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a layout diagram of optical lenses according to the present invention. The light beam incident by the objective lens system (1) forms an inverted image on the first focal plane (2).
第１焦点面（2）に結像した倒立像は、コンデンサーレンズ（3）、第２群レンズ（4）、第３群レンズ（5）、フィールドレンズ（６）により第２焦点面（7）に正立像として再結像する。 The inverted image formed on the first focal plane (2) is converted into the second focal plane (7) by the condenser lens (3), the second group lens (4), the third group lens (5), and the field lens (6). Re-imaged as an upright image.
第２焦点面（7）の正立像は、接眼系（接眼開玉（8）、接眼元玉（9））を通して、観察者の眼（10）により観察される。 The erect image of the second focal plane (7) is observed by the observer's eye (10) through the eyepiece system (eyepiece opening ball (8), eyepiece base ball (9)).
第１焦点面（2）と第２焦点面（7）の位置を固定したまま、第２群レンズ（4）、第３群レンズ（5）を光軸方向に相対移動する事により、第２焦点面（7）の正立像の拡大比率を変化させる。 By moving the second group lens (4) and the third group lens (5) relative to each other in the direction of the optical axis while keeping the positions of the first focal plane (2) and the second focal plane (7) fixed, Change the magnification ratio of the erect image on the focal plane (7).
１ 対物レンズ系
２ 第１焦点面
３ コンデンサーレンズ
４ 第２群レンズ
５ 第２群レンズ
６ フィールドレンズ
７ 第２焦点面
８ 接眼開玉
９ 接眼元玉
10 観察者の眼
DESCRIPTION OF SYMBOLS 1
10 Eyes of the observer
Claims (1)
In order from the object side, the objective lens system and the inverted image formed by the objective lens system are used as the first focal plane image, and the image is relayed to re-image the erect image, which is used as the second focal plane image. In the ground-sighted telescope having an optical system and an eyepiece for observing the image, the relay optical system includes a condenser lens having a positive power and a second power having a positive power from the first focal plane image. Group, which consists of a third lens unit having a positive power and a field lens having a negative power, and with the positions of the first focal plane image and the second focal plane image fixed, several lenses are arranged in the optical axis direction. Terrestrial telescope optical system with a lens group characterized by changing the magnification by relative movement.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006017281A JP2007199336A (en) | 2006-01-26 | 2006-01-26 | Variable power optical system for ground telescope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006017281A JP2007199336A (en) | 2006-01-26 | 2006-01-26 | Variable power optical system for ground telescope |
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| Publication Number | Publication Date |
|---|---|
| JP2007199336A true JP2007199336A (en) | 2007-08-09 |
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| JP2006017281A Pending JP2007199336A (en) | 2006-01-26 | 2006-01-26 | Variable power optical system for ground telescope |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010145590A (en) * | 2008-12-17 | 2010-07-01 | Deon Kogaku Giken:Kk | Sighting telescope |
| JP2010249895A (en) * | 2009-04-13 | 2010-11-04 | Tokyo Scope:Kk | Variable power device of collimation telescope |
| CN102466863A (en) * | 2010-11-10 | 2012-05-23 | 鸿富锦精密工业（深圳）有限公司 | Imaging lens |
| WO2015125480A1 (en) * | 2014-02-19 | 2015-08-27 | 株式会社ニコンビジョン | Variable-power optical system |
| CN107272151A (en) * | 2016-04-04 | 2017-10-20 | 康达智株式会社 | Pick-up lens |
| CN110612468A (en) * | 2017-05-11 | 2019-12-24 | 株式会社尼康 | Objective lens, optical system and microscope |
| WO2020066224A1 (en) * | 2018-09-28 | 2020-04-02 | 株式会社ニコンビジョン | Telescope and telescope series |
| WO2020090424A1 (en) * | 2018-11-01 | 2020-05-07 | 株式会社ニコン | Relay optical system and telescope having relay optical system |
| CN112305721A (en) * | 2020-11-18 | 2021-02-02 | 湖北久之洋红外***股份有限公司 | Infrared dual-waveband telescopic optical system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10319327A (en) * | 1997-05-19 | 1998-12-04 | Nikon Corp | Eyepiece |
| JP2004226544A (en) * | 2003-01-21 | 2004-08-12 | Pentax Corp | Variable-power polar axis telescope |
-
2006
- 2006-01-26 JP JP2006017281A patent/JP2007199336A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10319327A (en) * | 1997-05-19 | 1998-12-04 | Nikon Corp | Eyepiece |
| JP2004226544A (en) * | 2003-01-21 | 2004-08-12 | Pentax Corp | Variable-power polar axis telescope |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010145590A (en) * | 2008-12-17 | 2010-07-01 | Deon Kogaku Giken:Kk | Sighting telescope |
| JP2010249895A (en) * | 2009-04-13 | 2010-11-04 | Tokyo Scope:Kk | Variable power device of collimation telescope |
| CN102466863A (en) * | 2010-11-10 | 2012-05-23 | 鸿富锦精密工业（深圳）有限公司 | Imaging lens |
| WO2015125480A1 (en) * | 2014-02-19 | 2015-08-27 | 株式会社ニコンビジョン | Variable-power optical system |
| US10120169B2 (en) | 2014-02-19 | 2018-11-06 | Nikon Vision Co., Ltd. | Variable-power optical system |
| CN107272151B (en) * | 2016-04-04 | 2021-05-07 | 康达智株式会社 | Camera lens |
| CN107272151A (en) * | 2016-04-04 | 2017-10-20 | 康达智株式会社 | Pick-up lens |
| CN110612468A (en) * | 2017-05-11 | 2019-12-24 | 株式会社尼康 | Objective lens, optical system and microscope |
| WO2020066224A1 (en) * | 2018-09-28 | 2020-04-02 | 株式会社ニコンビジョン | Telescope and telescope series |
| US11747601B2 (en) | 2018-09-28 | 2023-09-05 | Asia Optical Co., Inc. | Telescope and telescope series |
| WO2020090424A1 (en) * | 2018-11-01 | 2020-05-07 | 株式会社ニコン | Relay optical system and telescope having relay optical system |
| CN112305721A (en) * | 2020-11-18 | 2021-02-02 | 湖北久之洋红外***股份有限公司 | Infrared dual-waveband telescopic optical system |
| CN112305721B (en) * | 2020-11-18 | 2023-08-15 | 湖北久之洋红外***股份有限公司 | Infrared dual-band telescopic optical system |
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