JPS61107310A - Lens holder - Google Patents
Lens holderInfo
- Publication number
- JPS61107310A JPS61107310A JP22927284A JP22927284A JPS61107310A JP S61107310 A JPS61107310 A JP S61107310A JP 22927284 A JP22927284 A JP 22927284A JP 22927284 A JP22927284 A JP 22927284A JP S61107310 A JPS61107310 A JP S61107310A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- adhesive
- peripheral surface
- grooves
- groove
- 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】
侠−五一発一立
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−米一技一血
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６図にて示すごとき構成が採用さ
れている。即ち、第６図にて示すレンズ保持構成は、レ
ンズ１を鏡枠２のレンズ収綱部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。2. Description of the Related Art Conventionally, as a structure for fixing and holding a lens to a lens frame via an adhesive, a structure as shown in FIG. 6, for example, has been adopted. That is, the lens holding structure shown in FIG. 6 is a lens in which the lens 1 is dropped into the lens storage rope part 3 of the lens frame 2, and this lens 1 is provided to protrude in the radial direction from the inner peripheral surface of the lens frame 2. It is configured so that it can be supported in a predetermined position by a holding part 4, and an adhesive 5 is applied to the annular gap between the lens 1 and the inner peripheral surface of the lens storage part 3 in 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 shaped 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７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（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ｌ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（’）ｌｚ７Ｘ収納部３内′。収納し・接着剤
５′）硬化によりレンズｌ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６図と全く同様に
レンズｌ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. 7, the lens 1 is stored in the lens frame 2. A method of applying (adhering) the adhesive 5 before applying the adhesive is also generally used. That is, in this method, the lens 1 is rotated around 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 ( ') Inside the lz7X storage section 3'.It is a means for storing and holding the lens l on the lens frame 2 by hardening.In this holding configuration, the lens l is attached to the lens frame in exactly the same way as in Fig. 6. It is fixed and held at 2.
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.
（１） 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１ξみ出し、そのためにレンズｌ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。(1) When the lens 1 is bonded and held to the lens frame 2 via the adhesive 5, the adhesive 5 protrudes 1ξ along the surface of the lens 1 into the effective diameter, which significantly impairs the optical characteristics of the lens 1. This could lead to deterioration or a decline in product quality and reliability.
（２） 上記（１１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
や鏡枠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−；、、。(2) The problem in (11) 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 mirror frame 2 has been damaged and the product has become defective.
ニングすることなく上記（１）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。It has been desired to devise a lens holding device that can solve the problem (1) above without the need for cleaning.
上記問題に鑑み、最近では第８図にて示すごとき構成が
案出されている。即ち、第８図にて示す構成は、鏡枠２
におけるレンズ収納部３の下部内周面にレンズ１との非
接触用溝部７を凹設して構成したものである。In view of the above problems, a configuration as shown in FIG. 8 has recently been devised. That is, the configuration shown in FIG.
A groove portion 7 for non-contact with the lens 1 is recessed in the lower inner peripheral surface of the lens storage portion 3 in the lens storage 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、
レンズ縁肉部や溝部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、
ｉ萎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 edge and the bottom of the groove 7
may go around the effective diameter plane of lens 1 and protrude,
There was a problem that the product would start to wilt. In particular, when the adhesive 5 of low viscosity was filled, the above-mentioned problem occurred significantly.
衾ヨ［−町
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 problems of the prior art described above, and is aimed at preventing the adhesive from protruding onto the effective diameter surface of the lens when the lens is fixed to the lens frame via adhesive. It is an object of the present invention to provide a lens holding device that can reliably prevent such problems and improve the quality and reliability of a lens system.
発」ｌＪしに１
本発明は、被保持体であるレンズの外周面及び鏡枠側の
レンズ保持部のレンズ保持面に、レンズ面にはみ出そう
とする接着剤溜め用の溝を形設して構成することにより
、上記本発明の目的を達成しようとするものである。According to the present invention, grooves are formed on the outer circumferential surface of the lens, which is the object to be held, and on the lens holding surface of the lens holding portion on the lens frame side, for storing the adhesive that tends to protrude onto the lens surface. By configuring the present invention as described above, it is intended to achieve the above-mentioned object of the present invention.
１−１−皿
以下、第１図〜第５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６図〜
第８図にて示した部材と同一部材については同一符号を
付してその説明を省略する。1-1-Plate Hereinafter, embodiments of the present invention will be described in detail using FIGS. 1 to 5. In addition, in the following explanation, FIGS.
Components that are the same as those shown in FIG. 8 are designated by 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 center line 9
The right half of is omitted.
図に示すごとく、プラスチックよりなるレンズ１の外周
面には、中心線（光軸）９と直交する方向に溝１０が形
設してあり、レンズ１外周面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内周面との間に介装した
接着層（接着剤）５から流下しようとする接着剤５ａを
溜めることができるようにレンズｌの全周に形設しであ
る。As shown in the figure, a groove 10 is formed in the outer peripheral surface of a lens 1 made of plastic in a direction perpendicular to a center line (optical axis) 9, and a groove 10 is formed in the outer peripheral surface of the lens 1 and a lens frame 2 made of plastic or metal. It is formed around the entire circumference of the lens 1 so as to collect the adhesive 5a which is about to flow down from the adhesive layer (adhesive) 5 interposed between the lens accommodating part 3 and the inner peripheral surface of the lens accommodating part 3.
鏡枠２におけるレンズ保持部４のレンズ保持面１１にも
溝１２が形設してあり、４１２は、レンズ収納部３内周
面を伝わって流下しようとする接着剤５ａを溜めること
ができるようにｆｉ１２の一面倒をレンズ収納部３内周
面と同一面にして形設されている。ａ１２も溝１０と同
様に全周にわたって凹設しである。A groove 12 is also formed in the lens holding surface 11 of the lens holding part 4 in the lens frame 2, and the groove 412 is designed to collect the adhesive 5a that is about to flow down along the inner peripheral surface of the lens housing part 3. The fi 12 is formed so that one side thereof is flush with the inner circumferential surface of the lens housing portion 3. Similar to the groove 10, a12 is also recessed over the entire circumference.
溝１０を形設したレンズ１とレンズ収納部３内周面との
接着は、図に示すごと（、ａｌＯより上方のレンズｌ外
周面とレンズ収納部３内周面との間に介装された接着剤
５を介して行なわれるようになっている。The adhesion between the lens 1 in which the groove 10 is formed and the inner circumferential surface of the lens housing part 3 is performed as shown in the figure. This is done through the adhesive 5.
上記構成によれば、レンズｌ外周とレンズ収納部３内周
面との間を伝わってレンズ面にはみ出そうとする接着剤
５ａは、全てａｌＯ内に溜るので、接着剤５のレンズ面
方向へのはみ出しを確実に防止しうるのである。又、万
が一１接着剤５のうちはみ出したものがレンズ収納部３
内周面を伝わってレンズ保持面１１に流下しても、この
接着剤は全て溝１２内に溜まるので、レンズ面方向に流
入することがない。その結果、レンズ系の品質の向上と
信頼性の向上が図れるとともに、接着層からはみ出した
接着剤の除去作業が不要化するので、組立作業工数の削
減化を図りうるものである。According to the above configuration, the adhesive 5a that is transmitted between the outer periphery of the lens l and the inner peripheral surface of the lens storage portion 3 and tries to protrude onto the lens surface is all accumulated in the alO, so that the adhesive 5 is directed toward the lens surface. It is possible to reliably prevent the protrusion. Also, in the unlikely event that some of the adhesive 5 protrudes from the lens housing 3.
Even if the adhesive flows down to the lens holding surface 11 along the inner circumferential surface, all of the adhesive remains in the groove 12 and does not flow toward the lens surface. As a result, the quality and reliability of the lens system can be improved, and the work of removing adhesive that has protruded from the adhesive layer is no longer necessary, so that the number of assembly work steps can be reduced.
なお、上記実施例においては、レンズ１外周に溝１０を
形設したが、レンズ１の１ＪｓＬｏの代りに、鏡枠２の
レンズ収納部３内周面側に１ｊＢ１１を形設しても同様
の作用、効果が期待できる。In the above embodiment, the groove 10 is formed on the outer periphery of the lens 1, but the same effect can be achieved even if 1jB11 is formed on the inner peripheral surface of the lens storage portion 3 of the lens frame 2 instead of 1JsLo of the lens 1. Effects and effects can be expected.
（第２実施例）
第２図に本発明の第２の実施例を示す。本実施例の特徴
は、レンズ１の練肉部１ａにおける溝１０よりも下方側
、即ちレンズ保持部４との接合部側を、レンズ１の外径
より小径に形設して小径練肉部１３に形設して構成した
点である。(Second Embodiment) FIG. 2 shows a second embodiment of the present invention. The feature of this embodiment is that the lower side of the groove 10 in the kneaded part 1a of the lens 1, that is, the side of the joint with the lens holding part 4, is formed to have a smaller diameter than the outer diameter of the lens 1. 13.
上記構成によれば、レンズ収納部３内径を伝わって溝Ｉ
Ｏを乗り越えた接着剤５が再びレンズ１
′□゛外周に接することがなくなり、接着剤５のレンズ
面へのはみ出しをより確実に防止することができるもの
であり、その他の作用、効果は前記第１の実施例と同様
であるので、その説明を省略する。According to the above configuration, the groove I is transmitted along the inner diameter of the lens housing portion 3.
Adhesive 5 that has overcome O is attached to lens 1 again.
'□゛The adhesive 5 does not touch the outer periphery and can more reliably prevent the adhesive 5 from protruding onto the lens surface, and the other functions and effects are the same as in the first embodiment. The explanation will be omitted.
なお、第３図にて示すごとり、鏡枠２のレンズ収納部３
内周面に第１のｔＳ１４と、第１の溝１４よりもより大
径に形設するとともにレンズ保持面１１側のａ１２と連
通構成した第２の溝１５とよりなる段差溝１６を形設し
て構成しても、上記と同様の作用、効果が得られるもの
である。In addition, as shown in FIG. 3, the lens storage section 3 of the mirror frame 2
A stepped groove 16 is formed on the inner circumferential surface, which includes a first tS14 and a second groove 15 that is formed to have a larger diameter than the first groove 14 and communicates with a12 on the lens holding surface 11 side. Even if configured as above, the same functions and effects as above can be obtained.
（第３実施例）
第４図に本発明の第３の実施例を示す。本実施例の特徴
は、レンズ１外周面と同様に鏡枠２のレンズ収納部３内
周面にも接着剤溜り用の溝１７を形設して構成した点で
ある。(Third Embodiment) FIG. 4 shows a third embodiment of the present invention. A feature of the present embodiment is that a groove 17 for an adhesive reservoir is formed on the inner circumferential surface of the lens housing portion 3 of the lens frame 2 as well as on the outer circumferential surface of the lens 1.
上記構成によれば、前記第１の実施例と同様の作用、効
果を奏することができるものである。According to the above configuration, the same functions and effects as those of the first embodiment can be achieved.
（第４実施例）
第５図に本発明の第４の実施例を示す。本実施例の特徴
は、第４図における溝１７をレンズ保持部４側の溝１２
と連通して構成した点である。(Fourth Embodiment) FIG. 5 shows a fourth embodiment of the present invention. The feature of this embodiment is that the groove 17 in FIG.
This is a point that is connected to the structure.
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.
（第５実施例）
図示は省略するが、上記構成に加えてレンズ１外周面の
？ＪＨＯの下方側、即ちレンズ保持部４との接合面側に
、シリコンやテフロン等の非接着性物質を塗布してバリ
ヤー部を形成させて構成してもよい。(Fifth Example) Although not shown in the drawings, in addition to the above configuration, the outer circumferential surface of the lens 1 has a A barrier portion may be formed by applying a non-adhesive substance such as silicon or Teflon to the lower side of the JHO, that is, the side of the joint with the lens holding portion 4.
上記構成によれば、前記第１〜第４の作用、効果に加え
て、レンズ面方向に流入しようとする接着剤をはね返す
ことができ、より良好な効果を得ることができるもので
ある。According to the above configuration, in addition to the first to fourth functions and effects described above, it is possible to repel the adhesive that tends to flow in the direction of the lens surface, and thus it is possible to obtain better effects.
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１について説明したが、これに限定されるもので
はなく、レンズ本体部をガラスでレンズ練肉部１ａをプ
ラスチックで成形してもよく、又、レンズ１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 is made of plastic, but the lens 1 is not limited to this; the lens main body part may be made of glass, and the lens part 1a may be made of plastic. Of course, the entire lens 1 may be made of glass.
光」Ｌ豊」Ｌ来
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することができ、レンズ系の品質
の向上、信頼性の向上及び組立作業工数の削減化等を図
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 assembly work. It is possible to reduce the amount of waste.
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、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図は本発明に係る装置の第３
の実施例を示す断面説明図、第５図は本発明に係る装置
の第４の実施例を示す断面説明図、第６図〜第８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
１０．１２，１４，１５．１７・・・・・・１第６図
％FIG. 1 is a cross-sectional explanatory diagram showing a first embodiment of the device according to the present invention, FIGS. 2 and 3 are cross-sectional explanatory diagrams showing a second embodiment of the device according to the present invention, and FIG. Third aspect of the device according to the present invention
FIG. 5 is a cross-sectional explanatory view showing a fourth embodiment of the apparatus according to the present invention, and FIGS. 6 to 8 are explanatory views of the prior art. 1... Lens 2... Lens frame 3... Lens housing section 4... Lens holding section 5... Adhesive 10.12, 14,15.17...1 Figure 6%
Claims (5)
もにレンズ外周と鏡枠におけるレンズ収納部内周面との
間に介装した接着剤を介して固定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、前記レンズ外周面も
しくは前記レンズ収納部内周面及び前記レンズ保持部の
レンズ保持面に、レンズ面にはみ出そうとする接着剤溜
め用の溝を形設して構成したことを特徴とするレンズ保
持装置。(1) A lens configured so that the lens can be held in the lens holding portion of the lens frame and fixedly held via an adhesive interposed between the outer circumference of the lens and the inner circumferential surface of the lens storage portion of the lens frame. The holding device is characterized in that a groove is formed in the outer circumferential surface of the lens, the inner circumferential surface of the lens housing part, and the lens holding surface of the lens holding part for storing an adhesive that tends to protrude onto the lens surface. lens holding device.
された溝に連接するとともにレンズ外径寸法よりも小径
に形設された小径縁部を有し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 outer circumferential surface of the lens has a small diameter edge that is connected to a groove formed in the outer circumferential surface of the lens and is formed to have a smaller diameter than the outer diameter of the lens. A lens holding device according to claim 1.
面方向にはみ出そうとする接着剤溜め用の溝を有してい
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 lens holding device according to claim 1, wherein the inner circumferential surface of the lens accommodating portion of the lens frame has a groove for storing an adhesive that tends to protrude in the direction of the lens surface. .
に形設された溝と連通されて形成されていることを特徴
とする特許請求の範囲第３項記載のレンズ保持装置。(4) The lens holding device according to claim 3, wherein the groove on the inner circumferential surface of the lens housing portion is formed in communication with a groove formed to have a larger diameter.
に非接着性物質よりなるバリヤー部が装備されているこ
とを特徴とする特許請求の範囲第１項又は第２項記載の
レンズ保持装置。(5) The lens holder according to claim 1 or 2, wherein the lens is equipped with a barrier part made of a non-adhesive material on the side of the joint surface with the lens holder. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22927284A JPS61107310A (en) | 1984-10-31 | 1984-10-31 | Lens holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22927284A JPS61107310A (en) | 1984-10-31 | 1984-10-31 | Lens holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61107310A true JPS61107310A (en) | 1986-05-26 |
Family
ID=16889509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22927284A Pending JPS61107310A (en) | 1984-10-31 | 1984-10-31 | Lens holder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61107310A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03287218A (en) * | 1990-04-03 | 1991-12-17 | Olympus Optical Co Ltd | Endoscope |
| JPH08122603A (en) * | 1994-10-20 | 1996-05-17 | Fuji Photo Optical Co Ltd | Lens mount structure |
| JP2016148812A (en) * | 2015-02-13 | 2016-08-18 | アルプス電気株式会社 | Lens drive device |
| US9939607B2 (en) | 2012-12-05 | 2018-04-10 | Konica Minolta, Inc. | Lens barrel, image obtaining unit, and method for assembling same |
| JP2020027293A (en) * | 2018-08-10 | 2020-02-20 | エーエーシー テクノロジーズ ピーティーイー リミテッド | Lens module |
| JP2020086251A (en) * | 2018-11-28 | 2020-06-04 | 京セラ株式会社 | Lens unit and manufacturing method therefor |
-
1984
- 1984-10-31 JP JP22927284A patent/JPS61107310A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03287218A (en) * | 1990-04-03 | 1991-12-17 | Olympus Optical Co Ltd | Endoscope |
| JPH08122603A (en) * | 1994-10-20 | 1996-05-17 | Fuji Photo Optical Co Ltd | Lens mount structure |
| US9939607B2 (en) | 2012-12-05 | 2018-04-10 | Konica Minolta, Inc. | Lens barrel, image obtaining unit, and method for assembling same |
| JP2016148812A (en) * | 2015-02-13 | 2016-08-18 | アルプス電気株式会社 | Lens drive device |
| JP2020027293A (en) * | 2018-08-10 | 2020-02-20 | エーエーシー テクノロジーズ ピーティーイー リミテッド | Lens module |
| US11194116B2 (en) * | 2018-08-10 | 2021-12-07 | Aac Optics Solutions Pte. Ltd. | Lens module |
| JP2020086251A (en) * | 2018-11-28 | 2020-06-04 | 京セラ株式会社 | Lens unit and manufacturing method therefor |
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