JPS61107309A - Lens holder - Google Patents
Lens holderInfo
- Publication number
- JPS61107309A JPS61107309A JP22927184A JP22927184A JPS61107309A JP S61107309 A JPS61107309 A JP S61107309A JP 22927184 A JP22927184 A JP 22927184A JP 22927184 A JP22927184 A JP 22927184A JP S61107309 A JPS61107309 A JP S61107309A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- adhesive
- bonding agent
- held
- collecting parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/022—Mountings, adjusting means, or light-tight connections, for optical elements for lenses lens and mount having complementary engagement means, e.g. screw/thread
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
Description
【発明の詳細な説明】
及−皿一立一立
本発明は、レンズ保持装置に係り、特に、接着剤を介し
てレンズを鏡枠に固定保持するレンズ保持装置に関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lens holding device, and more particularly to a lens holding device that fixes and holds a lens to a lens frame via an adhesive.
従−米一茨一玉
従来、接着剤を介してレンズを鏡枠に固定保持させる構
成としては、例えば第５図にて示すごとき構成が採用さ
れている。即ち、第５図にて示すレンズ保持構成は、レ
ンズ１を鏡枠２のレンズ収納部３内に落し込むとともに
、このレンズ１を鏡枠２の内周面に半径方向に突設した
レンズ保持部４にて所定位置に支承しうるように構成し
、レンズ１と鏡枠２におけるレンズ収納部３内周面との
間の環状空隙部に接着剤５を注射器又は先端部を針状に
形設した棒部材６を介して充填せしめて硬化させること
により、レンズ１を鏡枠２に固定保持させるようにした
ものである。Conventionally, as a structure for fixing and holding a lens to a lens frame via an adhesive, a structure as shown in FIG. 5, for example, has been adopted. That is, the lens holding structure shown in FIG. 5 is a lens holding structure in which the lens 1 is dropped into the lens storage part 3 of the lens frame 2, and the lens 1 is protruded from the inner peripheral surface of the lens frame 2 in the radial direction. The adhesive 5 is applied to the annular gap between the lens 1 and the inner peripheral surface of the lens storage portion 3 of the lens frame 2 using a syringe or a needle-shaped tip. The lens 1 is fixedly held on the lens frame 2 by filling and hardening it through a provided rod member 6.
又、上記レンズ保持構成においては、レンズ１をレンズ
収納部３内に収納した後に接着剤５を充填する例を示し
たが、第６図にて示すごとく、レンズ１を鏡枠２内に収
納する以前に接着剤５を塗布く付着）する手段も一般に
用いられている。即ち、かかる手段は、レンズ■を光軸
ｌを中心として回転し、レンズ１の外周面に針状の棒部
材６を介して接着剤５を塗布せしめた後に、レンズ１を
鏡枠２のレンズ収納部３内に収納し、接着剤５の硬化に
よりレンズ１を鏡枠２に固定保持させる手段であり、こ
の保持構成においても第５図と全く同様にレンズ１を鏡
枠２に固定保持しうるちのである。In addition, in the above lens holding structure, an example was shown in which the adhesive 5 is filled after the lens 1 is stored in the lens storage part 3, but as shown in FIG. 6, the lens 1 is stored in the lens frame 2. A method of applying adhesive 5 (adhering) before applying the adhesive is also generally used. That is, in this method, the lens 1 is rotated about the optical axis 1, the adhesive 5 is applied to the outer peripheral surface of the lens 1 via the needle-like rod member 6, and then the lens 1 is attached to the lens frame 2. This is a means for storing the lens 1 in the storage part 3 and fixing it to the lens frame 2 by hardening the adhesive 5. In this holding structure, the lens 1 is fixed and held to the lens frame 2 in exactly the same manner as shown in FIG. It's Uruchino.
しかしながら、上記従来のレンズ保持構成においては次
のような問題があり、満足できるものではなかった。However, the conventional lens holding structure described above has the following problems and is not satisfactory.
（１１レンズ１を鏡枠２に接着剤５を介して接着保持さ
せる際に、接着剤５がレンズ１の表面に沿って有効径内
に滲み出し、そのためにレンズ１の光学特性を著しく劣
化せしめたり、製品の品質、信頼性を低下せしめたりし
ていた。(11 When the lens 1 is bonded and held to the lens frame 2 via the adhesive 5, the adhesive 5 oozes into the effective diameter along the surface of the lens 1, which significantly deteriorates the optical characteristics of the lens 1. In some cases, the quality and reliability of the product deteriorated.
（２） 上記（１）の問題は、滲み出た接着剤をふき
取ったりあるいはクリーニングすることによりある程度
解消しうるが、ふき取り、クリーニング作業が大変であ
り、しかも、ふき取り、クリーニング作業中にレンズ１
−？）！Ｊ枠２を傷付けたりして製品として不良品化さ
せるという事態が多数生じており、ふき取りゃクリーニ
ングすることなく上記（１１の問題点を解決しうるレン
ズ保持装置の案出が望まれていた。(2) The problem in (1) above can be solved to some extent by wiping off or cleaning the oozing adhesive, but wiping and cleaning is difficult, and moreover, the lens is damaged during wiping and cleaning.
−? )! There have been many cases where the J frame 2 is damaged and the product is defective, and it has been desired to devise a lens holding device that can solve the problem (11) above without wiping or cleaning.
上記問題に鑑み、最近では第７図にて示すごとき構成が
案出されている。即ち、第７図にて示す構成は、鏡枠２
にお４？るレンズ収納部３の下部内周面にレンズＩとの
非接触用溝部７を凹設して構成したちのである。In view of the above problem, a configuration as shown in FIG. 7 has recently been devised. That is, the configuration shown in FIG.
4? A groove 7 for non-contact with the lens I is recessed in the lower inner peripheral surface of the lens accommodating portion 3.
上記構成によれば、溝部７の存在により接着剤５の滲み
出しが若干防止されるが、溝部７の底面とレンズ保持部
４のレンズ保持面とが同一平面に形設されているので、
レンズ練肉部や溝部７底面を経て（伝わって）接着剤５
がレンズ１の有効径面内にまわり込んではみ出したり、
滲み出したりするという問題点があった。特に、低粘度
の接着剤５を充填した場合には、上記問題点が顕著に生
じていた。According to the above structure, the presence of the groove part 7 slightly prevents the adhesive 5 from seeping out, but since the bottom surface of the groove part 7 and the lens holding surface of the lens holding part 4 are formed on the same plane,
Adhesive 5 passes (transmits) through the lens kneading part and the bottom of the groove part 7.
may go around the effective diameter plane of lens 1 and protrude,
There was a problem that it oozed out. In particular, when the adhesive 5 of low viscosity was filled, the above-mentioned problem occurred significantly.
発」引Ｕ−旌
本発明は、上記従来技術の問題点に鑑みなさ・れたもの
であって、レンズを接着剤を介して鏡枠に固定する際に
接着剤がレンズの有効径面にはみ出すのを確実に防止し
うるようにして、レンズ系の品質の向上、信頼性の向上
を図りうるようにしたレンズ保持装置を提供することを
目的とする。The present invention has been made in view of the above-mentioned problems of the prior art.When fixing a lens to a lens frame via an adhesive, the adhesive is applied to the effective diameter surface of the lens. It is an object of the present invention to provide a lens holding device that can reliably prevent protrusion and improve the quality and reliability of a lens system.
光」１」しに！
本発明は、被保持レンズの外周部又は／及び鏡枠におけ
るレンズ収納部内周面に、凹状の接着剤溜り部を設けた
レンズ保持装置を提供することにより、上記本発明の目
的を達成しようとするものである。Light "1"! The present invention aims to achieve the above-mentioned object of the present invention by providing a lens holding device in which a concave adhesive reservoir is provided on the outer circumference of a lens to be held and/or on the inner circumference of a lens storage portion in a lens frame. It is something to do.
実−」［−医
以下、第１図〜第４図を用いて本発明の実施例について
詳細に説明する。なお、以下の説明において、第５図〜
第７図にて示した部材と同一の部材については同一符号
を付してその説明を省略する。Embodiments of the present invention will now be described in detail with reference to FIGS. 1 to 4. In addition, in the following explanation, FIGS.
Components that are the same as those shown in FIG. 7 are given the same reference numerals and their explanations will be omitted.
（第１実施例）
第１図は、°本発明に係るレンズ保持装置８の第１の実
施例を示すものであり、左右対称形であるので、中心線
９の右側半分を省略しである。(First Embodiment) FIG. 1 shows a first embodiment of the lens holding device 8 according to the present invention, and since it is bilaterally symmetrical, the right half of the center line 9 is omitted. .
図に示すごと（、プラスチック又は金属よりなる鏡枠２
のレンズ収納部３内に収納され、レンズ保持部４にてレ
ンズスラスト方向（光軸方向）の位置決めがなされたプ
ラスチックよりなるレンズ（被保持レンズ）１の縁部１
ａには、レンズ１を鏡枠２に接着固定するための接着剤
５を充填する接着剤溜り部１０が設けられている。As shown in the figure (lens frame 2 made of plastic or metal)
The edge 1 of a lens (held lens) 1 made of plastic is stored in the lens storage section 3 of , and is positioned in the lens thrust direction (optical axis direction) by the lens holding section 4.
An adhesive reservoir 10 is provided at a to fill with an adhesive 5 for adhesively fixing the lens 1 to the lens frame 2.
接着剤溜り部１０は、第２図にて示すごとく、レンズ縁
部１ａの外周部において円周を等配した位置に複数設け
られており、この接着剤溜り部ｌＯは３個以上設けるの
が望ましい、各接着剤溜り部１０は、第２図にて示すよ
うに、縁部外周面からラジアル方向（半径方向）内方向
に向けて凹状の溝部に形設してあり、薄肉状の隔壁１１
を介して接着剤溜り部１０の底面が形設されるように構
成しである。隔壁１１よりも下面部（レンズ保持部４と
の接合面側）も、前記接着剤溜り部１０と同様の凹状溝
１２に凹設しである。又、接着剤溜り部１０におけるレ
ンズ収納部３内周面と接する面側は、接着剤溜り部１０
に充填される接着剤５を介してレンズ１を鏡枠２に接着
固定しうるように開口しである。As shown in FIG. 2, a plurality of adhesive reservoirs 10 are provided at positions equidistributed around the circumference on the outer periphery of the lens edge 1a, and it is preferable to provide three or more adhesive reservoirs 10. Desirably, each adhesive reservoir 10 is formed in a concave groove extending radially inward from the outer peripheral surface of the edge, as shown in FIG.
The bottom surface of the adhesive reservoir 10 is formed through the adhesive reservoir 10. The lower surface portion of the partition wall 11 (the side of the bonding surface with the lens holding portion 4) is also recessed in a concave groove 12 similar to the adhesive reservoir portion 10. Further, the surface side of the adhesive reservoir 10 that is in contact with the inner circumferential surface of the lens housing section 3 is connected to the adhesive reservoir 10.
It has an opening so that the lens 1 can be adhesively fixed to the lens frame 2 via an adhesive 5 filled in the opening.
上記構成によれば、レンズ１の縁部１ａ外周部に隔壁１
１と凹状溝とよりなる接着剤溜り部１０を設けであるの
で、レンズ１を鏡枠２に接着固定゛しうるとともに、接
着剤５がレンズ１のレンズ本体部方向へはみ出すのを確
実に防止しうるちのである。その結果、レンズ系の品質
の向上と信頼性１ の向上が図れるとと
もに、接着剤の除去作業が不要化するので、組立工数の
削減化を図りうる。又、接着剤をレンズ面から離隔する
とともに接着層の厚さを確保しうるので、歪の少ないレ
ンズ系を提供しうるものである。According to the above configuration, the partition wall 1 is provided on the outer circumference of the edge 1a of the lens 1.
1 and a concave groove, the lens 1 can be adhesively fixed to the lens frame 2, and the adhesive 5 can be reliably prevented from protruding toward the lens body of the lens 1. This is Shiuruchino. As a result, it is possible to improve the quality and reliability of the lens system, and since there is no need to remove adhesive, the number of assembly steps can be reduced. Further, since the adhesive can be separated from the lens surface and the thickness of the adhesive layer can be ensured, a lens system with less distortion can be provided.
なお、上記実施例においては、接着剤溜り部１０をレン
ズ１外周部に設けたが、これに限定されるものではなく
、鏡枠２側のレンズ収納部３内周面に設けてもよい。In the above embodiment, the adhesive reservoir 10 is provided on the outer periphery of the lens 1, but the adhesive reservoir 10 is not limited thereto, and may be provided on the inner periphery of the lens housing 3 on the lens frame 2 side.
（第２実施例） 第３図、第４図に本発明の第２の実施例を示す。(Second example) A second embodiment of the present invention is shown in FIGS. 3 and 4.
本実施例の特徴は、接着剤溜り部１０をレンズｌの縁部
１ａ外周面にラジアル方向外方向に突設して構成した点
であり、その他の構成は前記第１実施例と同様に構成し
である。The feature of this embodiment is that the adhesive reservoir 10 is formed by protruding outward in the radial direction from the outer peripheral surface of the edge 1a of the lens l, and the other structure is the same as that of the first embodiment. It is.
上記構成においても、前記第１の実施例と同様の作用、
効果を奏しうるちのである。Also in the above configuration, the same effect as in the first embodiment,
It is effective.
又、前記第１実施例と同様に、レンズ１側の代りにレン
ズ収納部３内周面側に接着剤溜り部１０を突没して構成
してもよい。Further, as in the first embodiment, the adhesive reservoir 10 may be formed by protruding and recessing into the inner peripheral surface of the lens storage portion 3 instead of the lens 1 side.
なお、上記各実施例においては、プラスチックよりなる
レンズｌについて説明したが、レンズ１
パにおける本体部をガラスでレンズ縁部１ａをプラス
チックで構成してもよく、又、レンズｌ全体をガラスで
構成してもよいことは勿論である。In each of the above embodiments, the lens 1 made of plastic was described, but the lens 1
Of course, the main body portion of the lens l may be made of glass and the lens edge portion 1a may be made of plastic, or the entire lens l may be made of glass.
Ｕ−曳一泣一果
以上のように、本発明によれば、レンズ面への接着剤の
はみ出しを確実に防止しうるので、レンズ系の品質の向
上、信頼性の向上、組立作業工数の削減化、光学歪の低
減化を図りうるものである。As described above, according to the present invention, it is possible to reliably prevent the adhesive from extruding onto the lens surface, thereby improving the quality and reliability of the lens system, and reducing the number of assembly steps. This makes it possible to reduce the number of optical distortions and reduce optical distortion.
第１図は本発明に係る装置の第１の実施例を示す断面説
明図、第２図はその要部の斜視図、第３図は本発明に係
る装置の第２の実施例を示す断面説明図、第４図はその
要部の斜視図、第５図、第６図及び第７図は従来技術の
説明図である。
１・・・・・・レンズ
２・・・・・・鏡枠
３・・・・・・レンズ収納部
４・・・・・・レンズ保持部
５・・・・・・接着剤
１０・・・・・・接着剤溜り部
第１図
第２図
第５図
午Fig. 1 is an explanatory cross-sectional view showing a first embodiment of the device according to the present invention, Fig. 2 is a perspective view of the main part thereof, and Fig. 3 is a cross-sectional view showing a second embodiment of the device according to the present invention. FIG. 4 is a perspective view of the main part thereof, and FIGS. 5, 6, and 7 are explanatory views of the prior art. 1... Lens 2... Lens frame 3... Lens housing section 4... Lens holding section 5... Adhesive 10... ...Adhesive reservoir part Fig. 1 Fig. 2 Fig. 5
Claims (3)
保持しうるように構成してなるレンズ保持装置において
、前記被保持レンズの外周部又は／及び前記鏡枠におけ
るレンズ収納部内周面に、前記レンズ収納部内周面又は
前記被保持レンズの外周部と接する面側を開口させた凹
状の接着剤溜り部を設けて構成したことを特徴とするレ
ンズ保持装置。(1) In a lens holding device configured to be able to fixedly hold a lens to be held onto a lens frame via an adhesive, the outer circumference of the lens to be held or/and the inner periphery of a lens housing portion in the lens frame. 1. A lens holding device characterized in that a concave adhesive reservoir is provided on a surface thereof, the surface being in contact with the inner circumferential surface of the lens accommodating portion or the outer circumferential portion of the lens to be held.
縁部外周面又は前記レンズ収納部内周面からラジアル方
向内方に凹設することにより形設されていることを特徴
とする特許請求の範囲第１項記載のレンズ保持装置。(2) A patent characterized in that the concave adhesive reservoir is formed by being recessed radially inward from the outer circumferential surface of the edge of the held lens or the inner circumferential surface of the lens housing part. A lens holding device according to claim 1.
縁部外周面又は前記レンズ収納部内周面にラジアル方向
外方向に突出して形設されていることを特徴とする特許
請求の範囲第１項記載のレンズ保持装置。(3) The concave adhesive reservoir is formed on the outer circumferential surface of the edge of the lens to be held or on the inner circumferential surface of the lens housing part so as to protrude outward in the radial direction. The lens holding device according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22927184A JPS61107309A (en) | 1984-10-31 | 1984-10-31 | Lens holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22927184A JPS61107309A (en) | 1984-10-31 | 1984-10-31 | Lens holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61107309A true JPS61107309A (en) | 1986-05-26 |
Family
ID=16889491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22927184A Pending JPS61107309A (en) | 1984-10-31 | 1984-10-31 | Lens holder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61107309A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01116506A (en) * | 1987-10-29 | 1989-05-09 | Olympus Optical Co Ltd | Holding device for lens having convex face |
| EP0422650A2 (en) * | 1989-10-12 | 1991-04-17 | Sharp Kabushiki Kaisha | Method for securing optical parts enclosed by a ring member to a support member |
| JPH03287218A (en) * | 1990-04-03 | 1991-12-17 | Olympus Optical Co Ltd | Endoscope |
| US5377038A (en) * | 1990-12-29 | 1994-12-27 | Canon Kabushiki Kaisha | Scanning optical system |
-
1984
- 1984-10-31 JP JP22927184A patent/JPS61107309A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01116506A (en) * | 1987-10-29 | 1989-05-09 | Olympus Optical Co Ltd | Holding device for lens having convex face |
| JPH0529089B2 (en) * | 1987-10-29 | 1993-04-28 | Olympus Optical Co | |
| EP0422650A2 (en) * | 1989-10-12 | 1991-04-17 | Sharp Kabushiki Kaisha | Method for securing optical parts enclosed by a ring member to a support member |
| JPH03287218A (en) * | 1990-04-03 | 1991-12-17 | Olympus Optical Co Ltd | Endoscope |
| US5377038A (en) * | 1990-12-29 | 1994-12-27 | Canon Kabushiki Kaisha | Scanning optical system |
| US5581391A (en) * | 1990-12-29 | 1996-12-03 | Canon Kabushiki Kaisha | Scanning optical system |
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