JPH08122600A - Optical element holder and its production - Google Patents
Optical element holder and its productionInfo
- Publication number
- JPH08122600A JPH08122600A JP25207494A JP25207494A JPH08122600A JP H08122600 A JPH08122600 A JP H08122600A JP 25207494 A JP25207494 A JP 25207494A JP 25207494 A JP25207494 A JP 25207494A JP H08122600 A JPH08122600 A JP H08122600A
- Authority
- JP
- Japan
- Prior art keywords
- water
- optical element
- holding frame
- resin layer
- clearance
- 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.)
- Withdrawn
Links
Landscapes
- Mounting And Adjusting Of Optical Elements (AREA)
- Lens Barrels (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、レンズやプリズム等の
光学素子を、これを保持する鏡筒や受け等の保持枠に固
定させた光学素子保持装置及びその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical element holding device in which an optical element such as a lens or a prism is fixed to a holding frame such as a lens barrel or a holder for holding the optical element, and a manufacturing method thereof.
【０００２】[0002]
【従来の技術】一般に、レンズ等の光学素子は接着剤を
用いて保持枠に固定されているが、光学素子と保持枠と
の熱膨張率等の相違により使用環境条件の変化によって
光学歪が生じるため、従来、特公平３−６０４０４号公
報、特開平３−１８２７０８号公報、特開昭６２−２１
８９１３号公報において、光学歪を経時的に生じさせな
い提案がなされている。2. Description of the Related Art Generally, an optical element such as a lens is fixed to a holding frame by using an adhesive. However, due to a difference in thermal expansion coefficient between the optical element and the holding frame, optical distortion is caused by a change in operating environment conditions. Therefore, in the past, Japanese Patent Publication No. 3-60404, Japanese Unexamined Patent Publication No. 3-182708, Japanese Unexamined Patent Publication No. 62-21
In 8913, there is a proposal to prevent optical distortion with time.
【０００３】特公平３−６０４０４号公報には、図２に
しめすように、レンズ１１を鏡筒１２に固定する接着剤
１３にゴム弾性をもたせ、レンズ１１と鏡筒１２間に生
じる力を接着剤１３により吸収する発明が開示されてい
る。In Japanese Patent Publication No. 3-60404, as shown in FIG. 2, the adhesive agent 13 for fixing the lens 11 to the lens barrel 12 is made to have rubber elasticity, and the force generated between the lens 11 and the lens barrel 12 is bonded. The invention of absorbing with agent 13 is disclosed.
【０００４】特開平３−１８２７０８号公報には、図３
に示すように、レンズ２１に空所２４を設けるとともに
空所２４内に弾性変形可能な応力吸収部位２５を一体形
成し、応力吸収部位２５の先端に接着剤２３を塗布して
レンズホルダ２２に固定する発明が開示されている。In Japanese Patent Laid-Open No. 3-182708, there is shown in FIG.
As shown in FIG. 2, the lens 21 is provided with a cavity 24, and an elastically deformable stress absorbing portion 25 is integrally formed in the cavity 24. An adhesive 23 is applied to the tip of the stress absorbing portion 25 to attach the lens holder 22 to the lens holder 22. A locking invention is disclosed.
【０００５】特開昭６２−２１８９１３号公報には、図
４に示すように、接着剤３３におけるレンズ保持部の外
周面３３ａを鏡筒３２に接しないようにして、鏡筒３２
に接着剤３３を介しレンズ３１を固定する発明が開示さ
れている。In Japanese Laid-Open Patent Publication No. 62-218913, as shown in FIG. 4, the outer surface 33a of the lens holding portion of the adhesive 33 is prevented from coming into contact with the lens barrel 32, and the lens barrel 32 is
There is disclosed an invention in which the lens 31 is fixed via an adhesive 33.
【０００６】また、実公昭６３−３３２０１号公報に
は、接着剤による接着面積が大きい場合に生じやすい接
着剤硬化後の光学歪の発生を防ぐため、図５に示すよう
に、保持枠４２のレンズ保持部にレンズ４１を保持する
保持面４２ａの内径よりも大きい内径でかつ保持枠４２
の長さの１／２〜３／４の長さを有する中筒部４４を設
け、レンズ４１と保持面４２ａ間に接着剤４３を介在さ
せてレンズ４１を保持枠４２に固定する発明が開示され
ている。Further, in Japanese Utility Model Publication No. 63-33201, in order to prevent the occurrence of optical distortion after the adhesive is hardened, which tends to occur when the adhesive area of the adhesive is large, as shown in FIG. The holding frame 42 has an inner diameter larger than the inner diameter of the holding surface 42a that holds the lens 41 in the lens holding portion.
Disclosed is an invention in which an intermediate cylinder portion 44 having a length of ½ to 3/4 of the length is provided, and an adhesive 43 is interposed between the lens 41 and the holding surface 42a to fix the lens 41 to the holding frame 42. Has been done.
【０００７】[0007]
【発明が解決しようとする課題】しかし、特公平３−６
０４０４号公報のように、単にゴム弾性を有する接着剤
１３を用いただけでは、光学歪のレベルはある程度向上
するものの、近年の耐久信頼性条件がより厳しいものに
なるにつれて、その環境下で発生する光学歪は大きくな
る傾向であり、従来の低光学歪化の達成レベルでは不十
分となってきている。However, Japanese Patent Publication No. 3-6
As described in Japanese Patent No. 0404, only by using the adhesive 13 having rubber elasticity, the level of optical distortion is improved to some extent, but as the durability / reliability condition in recent years becomes more severe, it occurs under that environment. Optical distortion tends to increase, and the level of achievement of conventional low optical distortion has become insufficient.
【０００８】また、特開平３−１８２７０８号公報のよ
うに、レンズ２１に応力吸収部位２５を形成したり、実
公昭６３−３３２０１号公報のように、接着剤４３の流
れ込む保持面４２ａを規制するための中筒部４４を保持
枠４２に設けることでも、光学歪のレベルは向上するも
のの、前述したと同様に近年の高精度光学系の光学特性
仕様には不十分であり、さらに、レンズ２１や保持枠４
２が複雑な形状であるために、金型の加工費用や保持枠
切削加工費等が余分に掛かってしまう欠点もあった。Further, as in JP-A-3-182708, a stress absorbing portion 25 is formed in the lens 21, and as in JP-B-63-33201, the holding surface 42a into which the adhesive 43 flows is regulated. Although providing the middle cylinder portion 44 for the holding frame 42 also improves the level of optical distortion, it is not sufficient for the optical characteristic specifications of recent high-precision optical systems, as described above, and the lens 21 And holding frame 4
Since 2 has a complicated shape, there is also a drawback that the machining cost of the mold, the machining cost of the holding frame and the like are additionally required.
【０００９】そして、特開昭６２−２１８９１３号公報
のように、接着剤３３におけるレンズ保持部の外周面３
３ａが鏡筒３２と接しないように接着剤３３層を形成す
るには、どうしても複雑な接着工程を取らざるを得ず、
コストアップになる割りには大幅な光学歪の向上は期待
できない問題があった。Then, as disclosed in JP-A-62-218913, the outer peripheral surface 3 of the lens holding portion of the adhesive 33 is used.
In order to form the adhesive 33 layer so that 3a does not come into contact with the lens barrel 32, it is inevitable that a complicated bonding step is taken.
There was a problem that a significant improvement in optical distortion could not be expected despite the cost increase.
【００１０】本発明は、上記従来技術の問題点に鑑みて
なされたもので、レンズやプリズム等の光学素子を保持
枠に固定して組み立てるに当たり、複雑な組み立て工程
を取らず、安価に高精度な光学特性を満たすことができ
る光学素子保持装置及びその製造方法を提供することを
目的とする。The present invention has been made in view of the above-mentioned problems of the prior art, and when fixing optical elements such as lenses and prisms to a holding frame to assemble, a complicated assembling process is not required, and it is inexpensive and highly accurate. It is an object of the present invention to provide an optical element holding device capable of satisfying various optical characteristics and a manufacturing method thereof.
【００１１】[0011]
【課題を解決するための手段】上記課題を解決するため
に、本発明の光学素子保持装置及びその製造方法を以下
のように構成した。すなわち、請求項１の発明は、レン
ズ、プリズム等の光学素子を保持枠内に固定して組み立
てた光学素子保持装置において、前記光学素子と保持枠
との間に０．５ｍｍ以上のクリアランスを設け、１ｇ当
たり５〜１０００ｃｃの吸水能力を有し、かつ吸水前の
粒径が５０μｍ以下の高吸水性ポリマーを５０体積％以
上含有させたＪＩＳ Ａ５０以下の硬さからなる吸水樹
脂層を前記クリアランスの全周または一部に設けて構成
した。In order to solve the above-mentioned problems, the optical element holding device and its manufacturing method of the present invention are configured as follows. That is, according to the invention of claim 1, in an optical element holding device assembled by fixing optical elements such as lenses and prisms in a holding frame, a clearance of 0.5 mm or more is provided between the optical element and the holding frame. The water-absorbent resin layer having a hardness of JIS A50 or less, which has a water-absorbing capacity of 5 to 1000 cc per gram and contains 50% by volume or more of a super-water-absorbing polymer having a particle size before water absorption of 50 μm or less, is used for the clearance. It is provided on the whole circumference or part of it.
【００１２】請求項２の発明は、レンズ、プリズム等の
光学素子を保持枠内に固定して組み立てた光学素子保持
装置において、前記光学素子と保持枠との間に０．５ｍ
ｍ以上のクリアランスを設け、１ｇ当たり５〜１０００
ｃｃの吸水能力を有し、かつ吸水前の粒径が５０μｍ以
下の高吸水性ポリマーを用い、すでに吸水済みの前記高
吸水性ポリマーをほぼ１００体積％含有させたＪＩＳ
Ａ５０以下の硬さからなる吸水樹脂層を前記クリアラン
スの全周または一部に設けて構成した。According to a second aspect of the present invention, in an optical element holding device assembled by fixing optical elements such as lenses and prisms in a holding frame, 0.5 m is provided between the optical element and the holding frame.
5 to 1000 per gram with clearance of m or more
JIS in which a water-absorbing polymer having a water absorption capacity of cc and a particle size before water absorption of 50 μm or less is used and the water-absorbing polymer which has already absorbed water is contained in an amount of approximately 100% by volume.
A water-absorbent resin layer having a hardness of A50 or less was provided on all or part of the clearance.
【００１３】請求項３の発明は、請求項１または請求項
２の構成にあって、前記吸水樹脂層を、光学素子または
保持枠のいずれか一方に接着させ、あるいは光学素子と
保持枠のいずれにも接着していないように構成した。According to a third aspect of the present invention, in the structure of the first or second aspect, the water-absorbent resin layer is adhered to either the optical element or the holding frame, or either the optical element or the holding frame. It was configured so that it was not adhered to.
【００１４】請求項４の発明は、レンズ、プリズム等の
光学素子を保持枠内に固定して組み立てる光学素子保持
装置の製造方法において、前記光学素子と保持枠との間
に０．５ｍｍ以上のクリアランスを設け、接着剤中に高
吸水性ポリマーを５０体積％以上含有させてなる吸水樹
脂層を前記クリアランスの全周または一部に設けた後、
前記吸水樹脂層を硬化することにより構成した。According to a fourth aspect of the present invention, in a method of manufacturing an optical element holding device in which optical elements such as lenses and prisms are fixed and assembled in a holding frame, the distance between the optical element and the holding frame is 0.5 mm or more. After providing a clearance and providing a water-absorbent resin layer containing 50% by volume or more of the super absorbent polymer in the adhesive on the entire circumference or a part of the clearance,
The water absorbent resin layer was formed by curing.
【００１５】請求項５の発明は、レンズ、プリズム等の
光学素子を保持枠内に固定して組み立てる光学素子保持
装置の製造方法において、前記光学素子と保持枠との間
に０．５ｍｍ以上のクリアランスを設け、このクリアラ
ンスの全周または一部に、少なくとも高吸水性ポリマー
と水溶性高分子を混在させた充填層を設けた後、前記充
填層中の水溶性高分子を除去すると同時に高吸水性ポリ
マーに吸水させて、高吸水性ポリマー含有率がほぼ１０
０体積％の吸水樹脂層を形成することにより構成した。According to a fifth aspect of the present invention, in a method of manufacturing an optical element holding device in which optical elements such as lenses and prisms are fixed and assembled in a holding frame, the distance between the optical element and the holding frame is 0.5 mm or more. After providing a clearance and providing a packing layer in which at least a superabsorbent polymer and a water-soluble polymer are mixed in all or part of the clearance, the water-soluble polymer in the packing layer is removed and at the same time, a high water absorption is achieved. Water-absorbing polymer content of approximately 10
It was constructed by forming a 0% by volume water-absorbent resin layer.
【００１６】すなわち、本発明の光学素子保持装置及び
その製造方法は、光学素子とその保持枠との間の全部ま
たは一部に吸水樹脂層を設けるように構成したものであ
る。That is, the optical element holding device and the method for manufacturing the same according to the present invention are configured such that the water absorbing resin layer is provided on all or a part between the optical element and the holding frame.
【００１７】そして、本発明に用いられる光学素子は、
ガラス、プラスチック、無機結晶、金属板及びこれらを
組み合わせたようなもの等、いずれでも用いることがで
きる。また、この光学素子を保持する保持枠は、プラス
チック、金属及びＦＲＰ等、いずれでも用いることがで
きる。The optical element used in the present invention is
Any of glass, plastic, inorganic crystals, metal plates and combinations thereof can be used. The holding frame that holds the optical element may be made of plastic, metal, FRP, or the like.
【００１８】また、本発明に用いられる高吸水性ポリマ
ーは、紙おむつ、生理用品、土壌改良剤等に用いられる
ようなもので、１ｇ当たり５〜１０００ｃｃの吸水能力
を有し、吸水前の粒径が５０μｍ以下の粉末で、水を吸
うと体積膨張してゲル状になるものである。用いる材料
としては、例えば、澱粉、セルロース等の多糖類に、水
溶性であるか又は加水分解により水溶性となるような重
合性単量体、例えば、アクリル酸、メタクリル酸、アク
リル酸塩、メタクリル酸塩、アクリル酸エステル、メタ
クリル酸エステル、アクリル酸アミド、メタクリル酸ア
ミド、アクリロニトリル、メタクリロニトリル、マレイ
ン酸、スルホン化スチレン、ビニルピリジン等、又はそ
れらのオリゴマー又はコオリゴマーをグラフト重合さ
せ、必要に応じて加水分解して得られた親水性ポリマー
を、架橋剤によって三次元的に重合させたものや、ポリ
エチレンオキサイド、ポリプロピレンオキサイド、ポリ
ビニルピロリドン、スルホン化ポリスチレン、ポリビニ
ルピジリン、ポリアクリル酸塩、ポリアクリル酸アミ
ド、ポリメタクリル酸塩、ポリメタクリル酸アミド等の
親水性ポリマーを架橋剤によって三次元的に重合させた
もの、等が用いられる。市販品としては、昭和電工
（株）製のＰＸ−４０２Ａ、三洋化成工業（株）製のサ
ンウェットＩＭ−３００、製鉄化学工業（株）製のアク
アキ−プ１０ＨＳ等がある。Further, the superabsorbent polymer used in the present invention is such as used in paper diapers, sanitary products, soil conditioners, etc., having a water absorption capacity of 5 to 1000 cc / g, and a particle size before water absorption. Is a powder of 50 μm or less, and when it absorbs water, it expands in volume to form a gel. Examples of the material to be used include a polymerizable monomer that is water-soluble or becomes water-soluble by hydrolysis such as starch and cellulose, such as acrylic acid, methacrylic acid, an acrylic acid salt, and methacrylic acid. Acid salts, acrylic acid esters, methacrylic acid esters, acrylic acid amides, methacrylic acid amides, acrylonitrile, methacrylonitrile, maleic acid, sulfonated styrene, vinyl pyridine, etc. Hydrophilic polymer obtained by hydrolysis according to, three-dimensionally polymerized by a crosslinking agent, polyethylene oxide, polypropylene oxide, polyvinylpyrrolidone, sulfonated polystyrene, polyvinylpydiline, polyacrylate, poly Acrylic acid amide, polymer Krill salts, that three-dimensionally polymerized by a hydrophilic polymer crosslinking agent such as polymethacrylic acid amides, etc. are used. Commercially available products include PX-402A manufactured by Showa Denko KK, Sunwet IM-300 manufactured by Sanyo Kasei Co., Ltd., AquaKeep 10HS manufactured by Iron and Steel Chemical Co., Ltd., and the like.
【００１９】上記架橋剤としては、例えば、エチレング
リコール、トリメチロールプロパン、グリセリン、ポリ
オキシエチレングリコール、ポリオキシプロピレングリ
コール等のポリオール類のジ−又はトリ−（メタ）アク
リル酸エステル類；前記ポリオール類とマレイン酸等の
不飽和酸類と反応させて得られる不飽和ポリエステル
類；Ｎ，Ｎ−メチレン−ビスアクリルアミドのようなビ
スアクリルアミド類；ポリエポキシドと（メタ）アクリ
ル酸とを反応させて得られるジ−又はトリ−（メタ）ア
クリル酸エステル類；トリレンジイソシアネート、ヘキ
サメチレンジイソシアネート等のようなポリイソシアネ
ートと（メタ）アクリル酸ヒドロキシエチルとを反応さ
せて得られるジ−（メタ）アクリル酸カルバミルエステ
ル類；アリル化デンプン；アリル化セルロース等が挙げ
られる。また、場合によっては、メチロール化（メタ）
アクリルアミド、グリオキザール、フタル酸、アジピン
酸、エチレングリコール等のような、ある種の反応条件
下で架橋させ得る二官能性化合物又は酸化カルシウム、
二酢酸亜鉛等のような多価金属塩等も用いることができ
る。Examples of the cross-linking agent include di- or tri- (meth) acrylic acid esters of polyols such as ethylene glycol, trimethylolpropane, glycerin, polyoxyethylene glycol and polyoxypropylene glycol; the above-mentioned polyols. And unsaturated polyesters obtained by reacting with unsaturated acids such as maleic acid; bisacrylamides such as N, N-methylene-bisacrylamide; di-esters obtained by reacting polyepoxide with (meth) acrylic acid Or tri- (meth) acrylic acid ester; di- (meth) acrylic acid carbamyl ester obtained by reacting polyisocyanate such as tolylene diisocyanate, hexamethylene diisocyanate and the like with hydroxyethyl (meth) acrylate Allylated den Emissions; allylated cellulose. In some cases, methylolation (meta)
Bifunctional compounds or calcium oxides that can be crosslinked under certain reaction conditions, such as acrylamide, glyoxal, phthalic acid, adipic acid, ethylene glycol, etc.
A polyvalent metal salt such as zinc diacetate can also be used.
【００２０】前記吸水樹脂層には、この高吸水性ポリマ
ー以外にも、バインダー成分として高い弾性を有する接
着性樹脂を含有しても良い。用いる材料としては、ポリ
ウレタン、ポリエステル、ポリスチレン、ポリエチレ
ン、軟質ポリ塩化ビニル、スチレン−アクリロニトリル
共重合体、変性フェノール樹脂、変性エポキシ樹脂、ア
クリル樹脂、ＡＢＳ樹脂、酢酸セルロース、エチレン−
酢酸ビニル共重合体、ポリアミド、ニトリル−ブタジエ
ンゴム、クロロプレンゴム、シリコーンゴム等の柔らか
い樹脂やゴムやエラストマーが用いられる。また、ポリ
ビニルピロリドン、ポリビニルアルコールやポリアクリ
ルアミド等の水溶性高分子を用いても良い。The water-absorbent resin layer may contain an adhesive resin having high elasticity as a binder component in addition to the superabsorbent polymer. Materials used include polyurethane, polyester, polystyrene, polyethylene, soft polyvinyl chloride, styrene-acrylonitrile copolymer, modified phenol resin, modified epoxy resin, acrylic resin, ABS resin, cellulose acetate, ethylene-
A soft resin such as vinyl acetate copolymer, polyamide, nitrile-butadiene rubber, chloroprene rubber or silicone rubber, rubber or elastomer is used. Further, a water-soluble polymer such as polyvinylpyrrolidone, polyvinyl alcohol or polyacrylamide may be used.
【００２１】前記吸水樹脂層は、バインダー成分中に高
吸水性ポリマー粉を混入したものを、光学素子と保持枠
の間のクリアランスに充填し、硬化させて吸水性のある
樹脂層を形成させたり、その後高吸水性ポリマーに吸水
させて吸水済みの吸水樹脂層を形成させたり、あるいは
バインダー成分を水溶性高分子とし、高吸水性ポリマー
を混入させたものを光学素子と保持枠の間のクリアラン
スに充填して固着した後、水で水溶性高分子を溶解除去
すると同時に高吸水性樹脂にも吸水させて、ほぼ１００
体積％の吸水樹脂層を形成させても良い。The water-absorbent resin layer may be formed by mixing a binder component with highly water-absorbent polymer powder in the clearance between the optical element and the holding frame and curing it to form a water-absorbent resin layer. After that, the super absorbent polymer is made to absorb water to form a water absorbent resin layer that has already absorbed water, or the binder component is a water-soluble polymer and a mixture of the super absorbent polymer is used as the clearance between the optical element and the holding frame. After it is filled and fixed in water, the water-soluble polymer is dissolved and removed with water, and at the same time, the water-absorbent resin is also made to absorb water.
You may form a water absorption resin layer of volume%.
【００２２】[0022]
（請求項１、４の作用）光学素子やその保持枠自身、あ
るいは光学素子と保持枠を固着する接着剤は、使用環境
下では温度や湿度の影響で膨張・収縮を起こし、その材
質毎の差によって各界面から内部にわたって歪が発生す
る。この残留歪は、光学素子の光学歪として光学特性を
損なわせている。請求項１、４の発明のように、光学素
子とその保持枠との間に吸水樹脂層が形成されている
と、この吸水樹脂層を緩衝材として前記残留歪が緩和さ
れ、光学素子の光学歪として発生するのを防止する。特
に、吸水樹脂層がＪＩＳ Ａ５０以下の硬さでは弾性が
高いために応力緩和効果が顕著となる。吸水樹脂層の硬
さがＪＩＳ Ａ５０を越えると、吸水しても吸水樹脂が
膨張できず、応力緩和効果が得られない。ＪＩＳ Ａ５
０以下ならＪＩＳ Ａ０までの適用は可能だが、実際に
は、光学素子と保持枠とのクリアランスと、必要な保持
強度とのバランスで吸水樹脂層の硬さを選定すれば良
い。なお、吸水が速やかにかつ均一に行われるために
は、前記クリアランスは最低でも０．５ｍｍ以上は必要
であり、この値は吸水後の体積膨張倍率や硬さ、硬化前
の吸水樹脂の粒径やバインダー中に混入した際の混合割
合・粘度等によっても変える必要がある。(Advantageous Effects of Claims 1 and 4) The optical element and its holding frame itself, or the adhesive for fixing the optical element and the holding frame, expands and contracts under the environment of use due to the influence of temperature and humidity. The difference causes strain from each interface to the inside. This residual strain impairs the optical characteristics as the optical strain of the optical element. When the water absorbing resin layer is formed between the optical element and the holding frame thereof, the residual strain is alleviated by using the water absorbing resin layer as a cushioning material, and the optical element Prevent it from occurring as distortion. In particular, when the water absorbing resin layer has a hardness of JIS A50 or less, the elasticity is high, so that the stress relaxation effect becomes remarkable. If the hardness of the water-absorbent resin layer exceeds JIS A50, the water-absorbent resin cannot expand even if water is absorbed, and the stress relaxation effect cannot be obtained. JIS A5
If it is 0 or less, JIS A0 can be applied, but actually, the hardness of the water-absorbent resin layer may be selected in consideration of the balance between the clearance between the optical element and the holding frame and the required holding strength. In order to absorb water quickly and uniformly, the clearance must be at least 0.5 mm or more. This value is the volume expansion ratio or hardness after absorption of water, and the particle size of the absorbent resin before curing. It is also necessary to change it depending on the mixing ratio and viscosity when mixed in the binder.
【００２３】吸水樹脂層中の高吸水ポリマーの含有量
は、吸水前の粒径や吸水時の体積膨張率や吸水樹脂の硬
さ等によっても異なるが、５０体積％以上必要であり、
５０体積％未満では殆ど高吸水性ポリマーによる吸水樹
脂層の吸水効果が発揮されない。また、吸水能力につい
ても同様の要因を考慮し、高吸水ポリマー１ｇ当たり５
〜１０００ｃｃの範囲で選定するが、５ｃｃ未満では殆
ど効果がなく、逆に１０００ｃｃを越える吸水能力で
は、吸水時の均一な吸水や膨張がなされにくく、再現性
に難がある。さらに、高吸水性ポリマーの吸水前の粒径
は、吸水時に高吸水性ポリマーの外側から内部まで充分
かつ即座に吸水されるように、５０μｍ以下の粉体が好
ましい。粒径が５０μｍを越えると、材質にもよるが、
水と接触した場合に接触部分だけでゲル化を生じてしま
い、水の均一な浸透が妨げられ、速やかな吸水速度が得
られないという、いわゆる「ままこ」現象が生じてしま
う。The content of the highly water-absorbent polymer in the water-absorbent resin layer depends on the particle size before water absorption, the volume expansion coefficient during water absorption, the hardness of the water-absorbent resin, etc., but is required to be 50% by volume or more.
When it is less than 50% by volume, the water absorbing effect of the water absorbing resin layer by the highly water absorbing polymer is hardly exhibited. Also, regarding the water absorption capacity, the same factor is taken into consideration, and it is 5
It is selected within the range of up to 1000 cc, but if it is less than 5 cc, it has almost no effect, and conversely, if it has a water absorption capacity of more than 1000 cc, uniform water absorption and expansion during water absorption are difficult to occur, and reproducibility is difficult. Further, the particle diameter of the superabsorbent polymer before water absorption is preferably 50 μm or less so that the water can be sufficiently and immediately absorbed from the outside to the inside of the superabsorbent polymer during water absorption. If the particle size exceeds 50 μm, it depends on the material,
When it comes into contact with water, gelation occurs only in the contact portion, which hinders the uniform permeation of water, resulting in a so-called “mamako” phenomenon in which a rapid water absorption rate cannot be obtained.
【００２４】（請求項３の作用）吸水樹脂層が光学素子
と保持枠のいずれにも接着した状態では、吸水樹脂層の
緩衝作用が不十分になり易く、いずれか一方（好ましく
は保持枠）にのみ接着しているか、もしくはいずれにも
接着していない方が好ましい。これは、吸水樹脂層が、
異種材料である光学素子あるいは保持枠との接着界面で
も、吸水樹脂層硬化時や使用環境中に、相互の膨張・収
縮により歪が発生し、この歪が接着界面を経て伝播し易
いからである。接着していない界面では、この歪の伝播
が遮断され、光学素子へ悪影響を及ぼさない。(Operation of Claim 3) When the water-absorbent resin layer is adhered to both the optical element and the holding frame, the buffer function of the water-absorbent resin layer tends to be insufficient, and either one (preferably the holding frame) is provided. It is preferable that it is adhered only to or not adhered to either. This is because the water-absorbent resin layer
This is because even at the adhesive interface with an optical element or holding frame that is a different material, distortion occurs due to mutual expansion and contraction during curing of the water-absorbent resin layer and during use environment, and this strain easily propagates through the adhesive interface. . At the non-bonded interface, the propagation of this strain is blocked and does not adversely affect the optical element.
【００２５】（請求項２、５の作用）バインダーに水溶
性高分子を用いて高吸水性ポリマーを混入させたもの
を、光学素子と保持枠との間のクリアランスに充填し、
水溶性高分子を水やお湯で溶解・除去すると、同時に高
吸水性ポリマーも吸水・膨潤し、クリアランスを水で膨
張しゲル化した高吸水性ポリマーが充填し、光学素子と
保持枠とを弾性をもって固定する。(Functions of Claims 2 and 5) A binder in which a water-absorbent polymer is used and a superabsorbent polymer is mixed therein is filled in a clearance between the optical element and the holding frame,
When the water-soluble polymer is dissolved and removed with water or hot water, the superabsorbent polymer also absorbs and swells at the same time, and the clearance is swollen with water and the gelated superabsorbent polymer is filled, making the optical element and the holding frame elastic. To fix.
【００２６】また、請求項４、５の光学素子保持装置の
製造方法の発明によれば、光学素子や保持枠に特殊な細
工をすることなく、また複雑な組み立て工程を取ること
なく、光学素子と保持枠の間に吸水樹脂層を設けること
により、光学素子保持装置の組み立て時や使用環境時に
発生する歪を緩和し、光学素子の光学特性を劣化させず
安定化した光学素子保持装置を提供することができる。According to the invention of the method for manufacturing an optical element holding device of claims 4 and 5, the optical element and the holding frame are not specially worked, and a complicated assembling step is not taken. By providing a water-absorbent resin layer between the optical element holding frame and the holding frame, the strain generated during the assembly of the optical element holding device and the usage environment is mitigated, and the optical element holding device is stabilized without deteriorating the optical characteristics of the optical element. can do.
【００２７】[0027]
【実施例１】以下、図１を用いて本発明の各実施例を詳
細に説明する。図５は、本発明に係る光学素子保持装置
の一実施例を示す中央縦断面図である。図において２
は、被保持レンズ１を保持させる鏡筒で、内部に被保持
レンズ１を収容する凹部４が被保持レンズ１より大径に
形成されるとともに、凹部４の下部には被保持レンズ１
を載置する段部５が設けられており、凹部４の内周上端
には、被保持レンズ１の外周上端に形成したレンズ面取
り部６より大きく形成した面取り部７が設けられてい
る。[Embodiment 1] Hereinafter, each embodiment of the present invention will be described in detail with reference to FIG. FIG. 5 is a central longitudinal sectional view showing an embodiment of the optical element holding device according to the present invention. 2 in the figure
Is a lens barrel for holding the held lens 1, a concave portion 4 for accommodating the held lens 1 having a larger diameter than the held lens 1 is formed inside, and the held lens 1 is provided below the concave portion 4.
Is provided, and a chamfered portion 7 formed to be larger than the lens chamfered portion 6 formed at the outer peripheral upper end of the held lens 1 is provided at the inner peripheral upper end of the concave portion 4.
【００２８】鏡筒２の凹部４には、直径３０ｍｍの被保
持レンズ１が上部から落とし込まれ段部５上に載置され
るとともに、透明シリコーンゴム接着剤「ＳＥ９１７
６」（東レ・ダウコーニング・シリコーン製）中に、ふ
るいを掛けて粒径５０μｍ以下にした高吸水性ポリマー
粉末「サンウェットＩＭ−１０００Ｕ」（三洋化成工業
製）を８０体積％均一に混入し、この高吸水性ポリマー
含有シリコーンゴム接着剤を、鏡筒２の面取り部７に塗
布して被保持レンズ１と鏡筒２間のクリアランスに充填
し、この混合物を２５℃８０％ＲＨで２４時間硬化させ
て吸水樹脂層３を形成し、鏡筒２に被保持レンズ１が接
着保持されるように構成されている。そして、前記吸水
樹脂層３の硬さは、ＪＩＳ Ａ３０であった。また、前
記レンズ１を鏡筒２に落とし込む前に、厚さ６ｍｍのレ
ンズ１の外周面には、予めフッ素系離型剤を薄く塗布し
ておき、前記接着剤が硬化後に速やかにレンズ１から界
面剥離するようにしておく。In the concave portion 4 of the lens barrel 2, the held lens 1 having a diameter of 30 mm is dropped from the upper portion and placed on the step portion 5, and the transparent silicone rubber adhesive "SE917" is used.
6 "(manufactured by Toray Dow Corning Silicone) and 80% by volume of super absorbent polymer powder" Sanwet IM-1000U "(manufactured by Sanyo Kasei Kogyo Co., Ltd.), which has been sieved to a particle size of 50 μm or less. The silicone rubber adhesive containing the super absorbent polymer is applied to the chamfered portion 7 of the lens barrel 2 to fill the clearance between the held lens 1 and the lens barrel 2, and the mixture is kept at 25 ° C. and 80% RH for 24 hours. The water absorbing resin layer 3 is formed by curing, and the held lens 1 is bonded and held to the lens barrel 2. The hardness of the water absorbent resin layer 3 was JIS A30. Before the lens 1 is dropped into the lens barrel 2, a fluorine-based release agent is thinly applied in advance to the outer peripheral surface of the lens 1 having a thickness of 6 mm so that the adhesive can be quickly removed from the lens 1 after curing. The interface is peeled off.
【００２９】そして、上記レンズ１を鏡筒２に固定保持
させる手段としては、鏡筒２にレンズ１を落とし込んで
から面取り部７に、前記高吸水性ポリマー含有シリコー
ンゴム接着剤をディスペンサー（図示省略）等により塗
布し、レンズ１と鏡筒２間のクリアランスの全周に流し
込むだけで良い。本実施例の場合、上記クリアランスは
０．８ｍｍに設定した。As means for fixing and holding the lens 1 on the lens barrel 2, the lens 1 is dropped into the lens barrel 2 and then the chamfered portion 7 is dispensed with a silicone rubber adhesive containing the super absorbent polymer (not shown). ) Or the like, and pour it over the entire circumference of the clearance between the lens 1 and the lens barrel 2. In the case of this example, the clearance was set to 0.8 mm.
【００３０】塗布されて徐々に空気中の水分で吸水樹脂
層中の接着剤の硬化が開始するとともに、吸水樹脂層中
の高吸水性ポリマーも吸水し始めてレンズ１と鏡筒２間
のクリアランスで徐々に膨張しつつ硬化しながら、さら
に吸水する。そして、吸水して膨張し接着剤の凝集力と
釣り合ったところで高吸水性ポリマーによる吸水は停止
する。このため、鏡筒２に対してレンズ１の芯をベルチ
ャック治具等で出しておき、その状態を保持しつつ前記
高吸水性ポリマー含有シリコーンゴム接着剤を塗布し、
前記吸水させることが必要である。When the adhesive is applied to the water-absorbent resin layer and the adhesive in the water-absorbent resin layer is gradually hardened by application of water in the air, the superabsorbent polymer in the water-absorbent resin layer also begins to absorb water, resulting in a clearance between the lens 1 and the lens barrel 2. It absorbs more water while gradually expanding and hardening. Then, the water absorption by the superabsorbent polymer is stopped when it absorbs water, expands, and balances with the cohesive force of the adhesive. Therefore, the core of the lens 1 is taken out from the lens barrel 2 with a bell chuck jig or the like, and the silicone rubber adhesive containing the superabsorbent polymer is applied while maintaining this state,
It is necessary to absorb the water.
【００３１】本実施例では吸水樹脂層３をクリアランス
の全周に形成した場合を挙げたが、レンズ１の保持強度
やクリアランスや接着剤の粘度によっては、３ヶ所だけ
に塗布して吸水樹脂層３を独立に形成させて実施するこ
とができ、必ずしもクリアランスの全周で連続した吸水
樹脂層３として設けなくともよい。In this embodiment, the water-absorbent resin layer 3 is formed on the entire circumference of the clearance. However, depending on the holding strength of the lens 1, the clearance and the viscosity of the adhesive, the water-absorbent resin layer may be applied only at three locations. 3 can be formed independently, and it is not always necessary to provide the water absorbing resin layer 3 that is continuous over the entire circumference of the clearance.
【００３２】また、本実施例ではレンズ１の外周面にの
み予め離型剤を塗布したが、鏡筒２の凹部４の内周側面
にも離型剤を塗布しておき、レンズ１と鏡筒２の両方に
吸水樹脂層３が接着しないようにして実施することも可
能である。Further, in the present embodiment, the release agent is applied only to the outer peripheral surface of the lens 1 in advance. However, the release agent is applied to the inner peripheral side surface of the concave portion 4 of the lens barrel 2 so that the lens 1 and the mirror 1 It is also possible to implement it so that the water absorbing resin layer 3 does not adhere to both of the cylinders 2.
【００３３】このように製造されたレンズ保持装置で
は、複雑な形状にすることなく、また複雑な工程を取る
ことなく、初期及び経時的にも光学歪を皆無に近く抑え
ることができた。In the lens holding device manufactured as described above, the optical distortion could be suppressed to almost zero even in the initial stage and the lapse of time without forming a complicated shape or taking a complicated process.
【００３４】[0034]
【実施例２】本実施例では、前記実施例１において吸水
樹脂層３のバインダー成分として用いたシリコーンゴム
接着剤に代えて、ポリビニルアルコールを用い、このポ
リビニルアルコールに実施例１と同様な高吸水性ポリマ
ーを実施例１と同様な割合で混合し、アセトンで希釈し
たペーストをクリアランスに充填し、アセトンを揮発さ
せ硬化させて吸水樹脂層３を形成させた以外は、実施例
１と同様に組み立てた。なお、本実施例においても図１
を用いて説明するものとする。Example 2 In this example, polyvinyl alcohol was used in place of the silicone rubber adhesive used as the binder component of the water absorbent resin layer 3 in Example 1, and the polyvinyl alcohol had the same high water absorption as in Example 1. Assembled in the same manner as in Example 1 except that the water-soluble resin layer 3 was formed by mixing the water-soluble polymer in the same ratio as in Example 1, filling the clearance with a paste diluted with acetone, and evaporating and curing the paste to form the water-absorbent resin layer 3. It was It should be noted that in this embodiment as well, FIG.
Shall be explained.
【００３５】本実施例で用いたポリビニルアルコールは
水溶性であり、硬化後の吸水樹脂層３の硬さはＪＩＳ
Ａ４３であった。また、用いた鏡筒２とレンズ１とのク
リアランスは０．５ｍｍであった。The polyvinyl alcohol used in this example is water-soluble, and the hardness of the water-absorbent resin layer 3 after curing is JIS.
It was A43. The clearance between the lens barrel 2 and the lens 1 used was 0.5 mm.
【００３６】硬化前の吸水樹脂を塗布するには、本実施
例のように面取り部７に塗布する他、鏡筒２の側面に数
ヶ所の注入孔を設けて、ここから注入する方法も有効で
ある。この場合、クリアランスにおける全周塗布が不要
なときには作業効率が向上して有効である。In order to apply the water-absorbent resin before curing, it is effective to apply the water-absorbing resin to the chamfered portion 7 as in this embodiment, or to provide injection holes from several positions on the side surface of the lens barrel 2 and inject from there. Is. In this case, the work efficiency is improved and effective when the entire circumference coating in the clearance is unnecessary.
【００３７】このようにして製造された光学素子保持装
置では、実施例１と同様、単純な設計と工程で、初期的
及び経時的に光学歪を皆無に近く抑えることができた。
また、本実施例で製造した光学素子保持装置を、防水仕
様の製品の最外周光学系に用いたところ、水が光学系に
掛かるとポリビニルアルコールが徐々に溶解し除去さ
れ、混合されていた高吸水性ポリマーも吸水し始め膨張
し、鏡筒２とレンズ１とのクリアランスを満たし、ポリ
ビニルアルコールが無くなって、鏡筒２とレンズ１とは
接着していないのに、それ以上内部に水が浸透するのを
防止することができた。この状態は、製品に水が掛から
ない状態になっても、吸水樹脂層３の水が沁みだすこと
はなく、レンズ１に光学歪を生じさせることなく鏡筒２
に保持させることができた。In the optical element holding device manufactured as described above, similar to the first embodiment, the optical distortion could be suppressed to almost zero in the initial stage and the time course by a simple design and process.
Further, when the optical element holding device manufactured in this example was used for the outermost peripheral optical system of a waterproof product, polyvinyl alcohol was gradually dissolved and removed when water was applied to the optical system, and the mixed high The water-absorbent polymer also begins to absorb water and expands, filling the clearance between the lens barrel 2 and the lens 1, and the polyvinyl alcohol is lost, so that the lens barrel 2 and the lens 1 are not bonded, but water penetrates further into the interior. I was able to prevent it. In this state, even if the product is not splashed with water, the water in the water-absorbent resin layer 3 does not drain, and the lens 1 does not cause optical distortion.
Was able to hold.
【００３８】[0038]
【実施例３】本実施例では、前記実施例２において用い
たポリビニルアルコールに代えて、紫外線硬化型水溶性
接着剤「３０４６」（スリーボンド社製）を用いて吸水
樹脂層３を形成した以外は、実施例２と同様に組み立て
た。但し、光学素子１と鏡筒２との間のクリアランスは
０．８ｍｍとした。なお、本実施例においても図１を用
いて説明するものとする。Example 3 In this example, an ultraviolet curable water-soluble adhesive “3046” (manufactured by ThreeBond Co.) was used in place of the polyvinyl alcohol used in Example 2, except that the water absorbing resin layer 3 was formed. Assembled as in Example 2. However, the clearance between the optical element 1 and the lens barrel 2 was 0.8 mm. Note that this embodiment will be described with reference to FIG.
【００３９】本実施例では、紫外線硬化型水溶性接着剤
「３０４６」中に高吸水性ポリマー粉を８０体積％分散
させた混合物を、光学素子１と鏡筒２との間のクリアラ
ンスに塗布し、紫外線を照射して一時的に硬化・接着さ
せた後、３０℃の温水シャワーを主にクリアランスの混
合物に振りかけ、硬化した水溶性接着剤を溶解除去しな
がら高吸水性ポリマーに吸水させ膨張させる。高吸水性
ポリマーに充分な水分を吸水させたら温水シャワーを止
め、余分な水分を乾燥除去し、高吸水性ポリマーがほぼ
１００体積％からなる吸水済みの吸水樹脂層３が硬さＪ
ＩＳ Ａ２０で形成された。In this example, a mixture of 80% by volume of super-water-absorbing polymer powder in UV curable water-soluble adhesive "3046" was applied to the clearance between the optical element 1 and the lens barrel 2. After irradiating ultraviolet rays to cure and bond temporarily, sprinkle a 30 ° C warm water shower mainly on the clearance mixture to absorb and swell the superabsorbent polymer while dissolving and removing the cured water-soluble adhesive. . When the superabsorbent polymer has absorbed sufficient moisture, the hot water shower is stopped, the excess moisture is dried and removed, and the absorbed water-absorbent resin layer 3 containing almost 100% by volume of the superabsorbent polymer has a hardness J.
Formed by IS A20.
【００４０】このように製造されたレンズ保持装置で
は、実施例２で述べたように、外界から水が掛かるまで
のレンズ１の保持状態と、水が掛かって吸水樹脂層の高
吸水性ポリマーが膨潤した後のレンズ１の保持状態とで
は、温度特性等が変化してしまうが、本実施例のように
最初から吸水樹脂層３を吸水済みの高吸水性ポリマーの
みで形成して、レンズ１を鏡筒２へ固定しておけば、最
初の光学特性が維持されて安定した性能が得られる。ま
た、前記実施例１と同様の効果が得られることはもちろ
んである。In the lens holding device manufactured as described above, as described in the second embodiment, the holding state of the lens 1 until the water is splashed from the outside and the highly water-absorbent polymer of the water-absorbent resin layer when the water is splashed Although the temperature characteristics and the like change depending on the holding state of the lens 1 after swelling, as in this embodiment, the water-absorbent resin layer 3 is formed only from the water-absorbed superabsorbent polymer from the beginning, and the lens 1 If is fixed to the lens barrel 2, the initial optical characteristics are maintained and stable performance is obtained. Further, it goes without saying that the same effect as that of the first embodiment can be obtained.
【００４１】[0041]
【発明の効果】本発明によれば、以下の効果を得ること
ができる。請求項１、２の発明によれば、レンズやプリ
ズム等の光学素子を保持枠に固定して組み立てるに当た
り、光学素子と保持枠の間に吸水樹脂層を設けるだけ
で、光学素子保持装置の組み立て時や使用環境の変化の
際に発生する歪を前記吸水樹脂層により吸収することが
できるので、複雑な組み立て工程を取らず、したがっ
て、安価に初期的、経時的にも高精度な光学特性を満た
す光学素子保持装置を得ることができる。請求項３の発
明によれば、上記請求項１、２の効果に加えて、吸水樹
脂層と接着していない光学素子、保持枠との界面で、発
生した歪の伝播を遮断することができる。請求項４、５
の発明によれば、レンズやプリズム等の光学素子を保持
枠に固定して組み立てるに当たり、光学素子と保持枠の
間に吸水樹脂層を簡単に設けることができるので、安価
に初期的、経時的にも高精度な光学特性を満たす光学素
子保持装置を製造することができる。According to the present invention, the following effects can be obtained. According to the first and second aspects of the present invention, when the optical element such as the lens or the prism is fixed to the holding frame to be assembled, only the water absorbing resin layer is provided between the optical element and the holding frame to assemble the optical element holding device. Since the water-absorbent resin layer can absorb the strain generated at the time of use or when the use environment changes, a complicated assembling process is not required, and therefore, inexpensive and highly accurate optical characteristics can be obtained even in the initial stage. It is possible to obtain a satisfying optical element holding device. According to the invention of claim 3, in addition to the effects of claims 1 and 2, the propagation of the generated strain can be blocked at the interface between the optical element not bonded to the water-absorbent resin layer and the holding frame. . Claims 4 and 5
According to the invention, when fixing and assembling optical elements such as lenses and prisms to the holding frame, the water-absorbent resin layer can be easily provided between the optical element and the holding frame, so that the initial and time Moreover, it is possible to manufacture an optical element holding device that satisfies highly accurate optical characteristics.
【図１】本発明に係る光学素子保持装置の各実施例を示
す中央縦断面図である。FIG. 1 is a central longitudinal sectional view showing each embodiment of an optical element holding device according to the present invention.
【図２】従来の光学素子保持装置を示す中央縦断面図で
ある。FIG. 2 is a central longitudinal sectional view showing a conventional optical element holding device.
【図３】従来の光学素子保持装置を示す中央縦断面図で
ある。FIG. 3 is a central vertical sectional view showing a conventional optical element holding device.
【図４】従来の光学素子保持装置を示す中央縦断面図で
ある。FIG. 4 is a central vertical cross-sectional view showing a conventional optical element holding device.
【図５】従来の光学素子保持装置を示す中央縦断面図で
ある。FIG. 5 is a central longitudinal cross-sectional view showing a conventional optical element holding device.
１ レンズ ２ 鏡筒 ３ 吸水樹脂層 1 lens 2 lens barrel 3 water-absorbent resin layer
Claims (5)
内に固定して組み立てた光学素子保持装置において、前
記光学素子と保持枠との間に０．５ｍｍ以上のクリアラ
ンスを設け、１ｇ当たり５〜１０００ｃｃの吸水能力を
有し、かつ吸水前の粒径が５０μｍ以下の高吸水性ポリ
マーを５０体積％以上含有させたＪＩＳ Ａ５０以下の
硬さからなる吸水樹脂層を前記クリアランスの全周また
は一部に設けたことを特徴とする光学素子保持装置。1. An optical element holding device in which optical elements such as lenses and prisms are fixed and assembled in a holding frame, and a clearance of 0.5 mm or more is provided between the optical element and the holding frame to provide 5 per 1 g. A water-absorbing resin layer having a water-absorbing capacity of up to 1000 cc and a super-water-absorbing polymer having a particle size before water absorption of 50 μm or less in an amount of 50 vol% or more and having a hardness of JIS A50 or less, is provided around the entire circumference or one of the clearances An optical element holding device, characterized in that it is provided in a section.
内に固定して組み立てた光学素子保持装置において、前
記光学素子と保持枠との間に０．５ｍｍ以上のクリアラ
ンスを設け、１ｇ当たり５〜１０００ｃｃの吸水能力を
有し、かつ吸水前の粒径が５０μｍ以下の高吸水性ポリ
マーを用い、すでに吸水済みの前記高吸水性ポリマーを
ほぼ１００体積％含有させたＪＩＳ Ａ５０以下の硬さ
からなる吸水樹脂層を前記クリアランスの全周または一
部に設けたことを特徴とする光学素子保持装置。2. In an optical element holding device assembled by fixing optical elements such as lenses and prisms in a holding frame, a clearance of 0.5 mm or more is provided between the optical element and the holding frame, and 5 g per 1 g. From a hardness of JIS A50 or less in which a water-absorbing polymer having a water absorption capacity of up to 1000 cc and a particle size before water absorption of 50 μm or less is used, and the water-absorbing polymer that has already absorbed water is contained in almost 100 volume% An optical element holding device, wherein a water-absorbent resin layer is provided on the entire circumference or a part of the clearance.
枠のいずれか一方に接着させ、あるいは光学素子と保持
枠のいずれにも接着していないことを特徴とする請求項
１または２記載の光学素子保持装置。3. The water-absorbent resin layer is adhered to either the optical element or the holding frame, or is not adhered to either the optical element or the holding frame. Optical element holding device.
内に固定して組み立てる光学素子保持装置の製造方法に
おいて、前記光学素子と保持枠との間に０．５ｍｍ以上
のクリアランスを設け、接着剤中に高吸水性ポリマーを
５０体積％以上含有させてなる吸水樹脂層を前記クリア
ランスの全周または一部に設けた後、前記吸水樹脂層を
硬化することを特徴とする光学素子保持装置の製造方
法。4. A method of manufacturing an optical element holding device in which optical elements such as lenses and prisms are fixed and assembled in a holding frame, and a clearance of 0.5 mm or more is provided between the optical element and the holding frame to bond the optical elements. A water-absorbent resin layer containing a super-water-absorbent polymer in an amount of 50% by volume or more is provided on the entire circumference or a part of the clearance, and then the water-absorbent resin layer is cured. Production method.
内に固定して組み立てる光学素子保持装置の製造方法に
おいて、前記光学素子と保持枠との間に０．５ｍｍ以上
のクリアランスを設け、このクリアランスの全周または
一部に、少なくとも高吸水性ポリマーと水溶性高分子を
混在させた充填層を設けた後、前記充填層中の水溶性高
分子を除去すると同時に高吸水性ポリマーに吸水させ
て、高吸水性ポリマー含有率がほぼ１００体積％の吸水
樹脂層を形成することを特徴とする光学素子保持装置の
製造方法。5. A method of manufacturing an optical element holding device in which optical elements such as lenses and prisms are fixed and assembled in a holding frame, and a clearance of 0.5 mm or more is provided between the optical element and the holding frame. After providing the filling layer in which at least the superabsorbent polymer and the water-soluble polymer are mixed in the entire circumference or part of the clearance, the water-soluble polymer in the filling layer is removed and at the same time the superabsorbent polymer absorbs water. And a water-absorbent resin layer having a high water-absorbent polymer content of about 100% by volume is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25207494A JPH08122600A (en) | 1994-10-18 | 1994-10-18 | Optical element holder and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25207494A JPH08122600A (en) | 1994-10-18 | 1994-10-18 | Optical element holder and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08122600A true JPH08122600A (en) | 1996-05-17 |
Family
ID=17232194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25207494A Withdrawn JPH08122600A (en) | 1994-10-18 | 1994-10-18 | Optical element holder and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08122600A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006140281A (en) * | 2004-11-11 | 2006-06-01 | Stanley Electric Co Ltd | Power led and its manufacturing method |
| EP3255109A1 (en) * | 2016-03-19 | 2017-12-13 | Kurt Emil Guido Bier | Chalk-, lime- and deposit-free coatings for wet/dry surfaces |
| JP2018031809A (en) * | 2016-08-22 | 2018-03-01 | オリンパス株式会社 | Lens holding method, method of manufacturing lens part set, and lens part set |
| JP2021087158A (en) * | 2019-11-29 | 2021-06-03 | キヤノン株式会社 | Image reading device and image forming apparatus |
| DE102021117702A1 (en) | 2021-07-08 | 2023-01-12 | Sick Ag | Sensor housing and method for fixing at least one optical element in a sensor housing |
-
1994
- 1994-10-18 JP JP25207494A patent/JPH08122600A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006140281A (en) * | 2004-11-11 | 2006-06-01 | Stanley Electric Co Ltd | Power led and its manufacturing method |
| EP3255109A1 (en) * | 2016-03-19 | 2017-12-13 | Kurt Emil Guido Bier | Chalk-, lime- and deposit-free coatings for wet/dry surfaces |
| JP2018031809A (en) * | 2016-08-22 | 2018-03-01 | オリンパス株式会社 | Lens holding method, method of manufacturing lens part set, and lens part set |
| JP2021087158A (en) * | 2019-11-29 | 2021-06-03 | キヤノン株式会社 | Image reading device and image forming apparatus |
| US11811998B2 (en) | 2019-11-29 | 2023-11-07 | Canon Kabushiki Kaisha | Image reading apparatus and image forming apparatus having a rectangular mirror and a casing for the mirror and an image sensor, wherein opposite ends of the mirror are bonded to the casing with adhesives that differ from each other in hardness |
| DE102021117702A1 (en) | 2021-07-08 | 2023-01-12 | Sick Ag | Sensor housing and method for fixing at least one optical element in a sensor housing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20020115 |