JP3715937B2 - Optical material holding jig and optical material polishing method - Google Patents

Optical material holding jig and optical material polishing method Download PDF

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JP3715937B2
JP3715937B2 JP2002091430A JP2002091430A JP3715937B2 JP 3715937 B2 JP3715937 B2 JP 3715937B2 JP 2002091430 A JP2002091430 A JP 2002091430A JP 2002091430 A JP2002091430 A JP 2002091430A JP 3715937 B2 JP3715937 B2 JP 3715937B2
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optical material
holding
jig
outer edge
polishing
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JP2003285254A (en
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美範 小山
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Fujinon Corp
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【０００１】
【発明の属する技術分野】
本発明は、光学ガラス等の光学材料からなる光学素材の表面を所定の形状に研磨してレンズ等の光学部品を成形する際に光学素材を保持するための光学素材保持用治具、及び光学素材研磨方法に関するものである。
【０００２】
【従来の技術】
従来、光学部品、例えば、レンズやミラー（鏡）等は、クラウン系ガラス、フリント系ガラス等の光学ガラスを含む光学材料により、板状、円盤状、略レンズ状等の形状に形成した光学素材を作製し、この光学素材の適宜の面を、その表面が所定のレンズ曲面やミラー曲面（以下、「光学機能面」という。）等となるように、研削や研磨を行うことにより作製されていた。
【０００３】
このように、光学材料からなる光学素材に、研削や研磨等の加工を行ってレンズ等の光学部品を作製する場合には、上記の光学素材に、▲１▼素材取り、▲２▼光学機能面加工、▲３▼外径加工の順で加工を施すことが一般に行われている。
【０００４】
素材取り加工工程は、レンズ１個分の光学材料を粗成形し、加工を施すべき光学素材を得る工程である。また、光学機能面加工工程は、ａ）粗加工工程、ｂ）スムージング加工工程、ｃ）磨き（ポリッシング）加工工程の順で行われる。また、外径加工工程は、「心取り」とも呼ばれ、光学機能面加工の終了した光学素材を「心取り機」と呼ばれる円筒研削機などに装着し、光学素材の外径部のうちの不要部分を砥石等によって削除し所定の直径及び外径形状のレンズやミラー等を得るための工程である。
【０００５】
上記した光学機能面加工のうち、最初のａ）粗加工工程は、素材取りされた光学素材の寸法をレンズ等の最終値に近付け、表面の粗さを改善する工程であり、「荒ずり」や「カーブゼネレータ研削」により行われる。続くｂ）スムージング加工工程は、粗加工で生じた表面の粗さをより細かくし、レンズ等の厚さ寸法を必要精度内に入れる工程であり、「砂かけ」や「ダイヤモンドスムージング」により行われる。最後のｃ）磨き加工工程は、レンズ面等の光学機能面を鏡面状に仕上げるとともに、その寸法と形状を最終精度内に入れる工程であり、研磨剤等を用いて行われる。
【０００６】
図７は、上記したスムージング加工工程や磨き加工工程の従来の例の一つを説明する図である。図７は、レンズ状の光学素材Ｍ１の被研磨面Ｓ１１を球面（凹面）状に研磨して光学機能面を形成し、光学部品を作成する場合を示している。この場合の光学素材Ｍ１は、被研磨面Ｓ１１（図７における下面）が球面（凹面）状で、被研磨面Ｓ１１とは逆側の面である被保持面Ｓ２１（図７における上面）が平面である光学素材である。
【０００７】
図７において、符号７０は研磨皿を、符号８０は光学素材保持用治具（いわゆる「レンズホルダー」）を、符号９０は駆動装置を、それぞれ示している。
【０００８】
図７に示す方法では、荒ずり等の粗加工を終えた１個の光学素材Ｍ１を、光学素材保持用治具８０によって保持し、凸球面状の研磨面７１が表面に形成された研磨皿７０の上に載置する。その後、研磨皿７０の下部に設けられている回転軸７２を図示しない回転駆動手段（例えば電動モーター等）によって回転させることにより、研磨皿７０を回転させる。これにより、光学素材Ｍ１の被研磨面Ｓ１１が凹球面状に研磨され、スムージング加工工程と磨き加工工程が行われる。
【０００９】
この場合、光学素材保持用治具８０は、略円盤状の治具本体８１Ａの保持面８３Ａ（図７における下面）に、高温に加熱され流動性と粘着性を有する状態となったピッチＰを塗布し、このピッチＰにより光学素材Ｍ１の被保持面Ｓ２１を保持するように構成されている。ピッチＰは、木材、石炭、石油等から抽出される瀝青材料である。
【００１０】
治具本体８１Ａの上面には、略半球状の凹部である嵌合凹部８４Ａが形成されている。この嵌合凹部８４Ａに、駆動部材９２の先端（図７における下端）の略球状の嵌合部９１が嵌合するようになっている。駆動部材９２は、駆動源（図示せず）により図７に示す左右方向に往復直線運動を行うように駆動される。
【００１１】
このような構成により、光学素材Ｍ１は、研磨皿７０の研磨面７１に密接しつつ、その上で揺動するように摺動され、同時に研磨皿７０は回転軸７２の中心軸線を回転の中心線として回転する。この場合、治具本体８１Ａの上部の嵌合凹部８４Ａと、駆動部材９２の先端の嵌合部９１は、ユニバーサル・ジョイントと同様の作用を持つピボットの役割を果たしている。このため、光学素材Ｍ１と光学素材保持用治具８０は一体となって揺動しつつ回転し、光学素材Ｍ１の被研磨面Ｓ１１は、研磨面７１の形状と略同一となるように研磨される。この際、研磨面７１の表面には、砂状の研磨材、水スラリー状等の研磨剤等（図示せず）が塗布又は散布され、光学素材Ｍ１の被研磨面Ｓ１１との間に介在し、研磨作用を補助する。
【００１２】
【発明が解決しようとする課題】
しかし、上記した従来の光学素材研磨方法では、以下のような問題があった。
【００１３】
（イ）ピッチの接着性を利用して光学素材を光学素材保持用治具に保持し研磨を行うので、ピッチを高温になるまで加熱する必要があり、夏期等においては、過酷な作業となる。このため、より労働環境の良好な他の方法の採用が要請されていた。
【００１４】
（ロ）レンズの種類、寸法ごとに専用の光学素材保持用治具を用いるため、治具の作製コスト、治具の保管コスト等がかかる。このため、より費用が低廉で汎用性のある他の方法の採用が要請されていた。
【００１５】
本発明は上記の問題を解決するためになされたものであり、本発明の解決しようとする課題は、作業が簡素かつ平易で汎用性のある光学素材保持用治具と光学素材研磨方法を提供することにある。
【００１６】
【課題を解決するための手段】
上記課題を解決するため、本発明の請求項１に係る光学素材保持用治具は、
光学素材（Ｍ１〜Ｍ５）の被研磨面（Ｓ１１〜Ｓ１５）を、移動する研磨面（７１）によって研磨する際に、前記光学素材（Ｍ１〜Ｍ５）を保持する光学素材保持用治具（１Ａ〜１Ｄ）であって、
前記光学素材（Ｍ１〜Ｍ５）の前記被研磨面（Ｓ１１〜Ｓ１５）とは逆側の面である被保持面（Ｓ２１〜Ｓ２５）に対向する部分である保持部（保持面８３Ａの外縁部、治具底面８３Ｂの外縁部、保持面８３Ｃ、又は保持部８３Ｄ１）を有するとともに、前記被研磨面（Ｓ１１〜Ｓ１５）を前記研磨面（７１）に密接させつつ摺動させるように駆動する駆動部材（９２）の先端の嵌合部（９１）と接続可能な駆動手段接続部（８４Ａ〜８４Ｃ）を有する治具本体（８１Ａ〜８１Ｄ）の前記保持部（保持面８３Ａの外縁部、治具底面８３Ｂの外縁部、保持面８３Ｃ、又は保持部８３Ｄ１）に、
織布又は不織布若しくは編布を含む基材の一面に合成樹脂材料からなり皮を模擬した表面層を一体化させた合成皮革、又は繊維部材を不規則かつ三次元立体的にからみ合わせた繊維層の上に合成樹脂材料をコーティングして微細な小孔を形成させた表面層を有する人工皮革、又は前記繊維層と前記表面層の間に織布又は不織布若しくは編布を挟み込んだ３層構造の人工皮革、若しくは前記表面層を毛羽立ててスエード状又は裏皮状にし表面に多数の短く小径の毛状部材が形成された人工皮革からなり非粘着性を有する表面である第１面（２１Ａ〜２１Ｄ）と、前記第１面（２１Ａ〜２１Ｄ）とは逆側の表面である第２面（２２Ａ〜２２Ｄ）を有し、シート状に形成された光学素材当接部材（１２Ａ〜１２Ｄ）を、前記第２面（２２Ａ〜２２Ｄ）が密接するようにして取り付け、
前記光学素材（Ｍ１〜Ｍ５）の研磨時には、前記非粘着性を有する第１面（２１Ａ〜２１Ｄ）を、前記光学素材（Ｍ１〜Ｍ５）の前記被保持面（Ｓ２１〜Ｓ２５）に当接させることにより前記光学素材（Ｍ１〜Ｍ５）を保持可能とし、研磨終了後は、前記駆動部材（９２）を上方に移動させるだけで取り外し可能としたことを特徴とする。
【００１７】
また、本発明の請求項２に係る光学素材保持用治具は、
請求項１記載の光学素材保持用治具において、
前記光学素材当接部材（１２Ａ〜１２Ｄ）は、複数個が、その平面的配置が略放射状となるようにして、前記保持部（保持面８３Ａの外縁部、治具底面８３Ｂの外縁部、保持面８３Ｃ、又は保持部８３Ｄ１）に取り付けられること
を特徴とする。
【００１８】
また、本発明の請求項３に係る光学素材保持用治具は、
請求項１記載の光学素材保持用治具において、
前記光学素材当接部材（１２Ａ〜１２Ｄ）の前記第２面（２２Ａ〜２２Ｄ）には接着剤が塗布され、前記保持部（保持面８３Ａの外縁部、治具底面８３Ｂの外縁部、保持面８３Ｃ、又は保持部８３Ｄ１）に取り付けられること
を特徴とする。
【００１９】
また、本発明の請求項４に係る光学素材研磨方法は、
光学素材（Ｍ１〜Ｍ５）の被研磨面（Ｓ１１〜Ｓ１５）を、移動する研磨面（７１）によって研磨する光学素材研磨方法であって、前記研磨の際に、前記光学素材（Ｍ１〜Ｍ５）を保持する光学素材保持用治具（１Ａ〜１Ｄ）を用い、前記光学素材保持用治具（１Ａ〜１Ｄ）においては、
前記光学素材（Ｍ１〜Ｍ５）の前記被研磨面（Ｓ１１〜Ｓ１５）とは逆側の面である被保持面（Ｓ２１〜Ｓ２５）に対向する部分である保持部（保持面８３Ａの外縁部、治具底面８３Ｂの外縁部、保持面８３Ｃ、又は保持部８３Ｄ１）を有するとともに、前記被研磨面（Ｓ１１〜Ｓ１５）を前記研磨面（７１）に密接させつつ摺動させるように駆動する駆動部材（９２）の先端の嵌合部（９１）と接続可能な駆動手段接続部（８４Ａ〜８４Ｃ）を有する治具本体（８１Ａ〜８１Ｄ）の前記保持部（保持面８３Ａの外縁部、治具底面８３Ｂの外縁部、保持面８３Ｃ、又は保持部８３Ｄ１）に、
織布又は不織布若しくは編布を含む基材の一面に合成樹脂材料からなり皮を模擬した表面層を一体化させた合成皮革、又は繊維部材を不規則かつ三次元立体的にからみ合わせた繊維層の上に合成樹脂材料をコーティングして微細な小孔を形成させた表面層を有する人工皮革、又は前記繊維層と前記表面層の間に織布又は不織布若しくは編布を挟み込んだ３層構造の人工皮革、若しくは前記表面層を毛羽立ててスエード状又は裏皮状にし表面に多数の短く小径の毛状部材が形成された人工皮革からなり非粘着性を有する表面である第１面（２１Ａ〜２１Ｄ）と、前記第１面（２１Ａ〜２１Ｄ）とは逆側の表面である第２面（２２Ａ〜２２Ｄ）を有し、シート状に形成された光学素材当接部材（１２Ａ〜１２Ｄ）を、前記第２面（２２Ａ〜２２Ｄ）が密接するようにして取り付け、
前記光学素材（Ｍ１〜Ｍ５）の研磨時には、前記非粘着性を有する第１面（２１Ａ〜２１Ｄ）を、前記光学素材（Ｍ１〜Ｍ５）の前記被保持面（Ｓ２１〜Ｓ２５）に当接させることにより前記光学素材（Ｍ１〜Ｍ５）を保持可能とし、研磨終了後は、前記駆動部材（９２）を上方へ持ち上げるだけで取り外し可能としたことを特徴とする。
【００２０】
また、本発明の請求項５に係る光学素材研磨方法は、
請求項４記載の光学素材研磨方法において、
前記光学素材当接部材（１２Ａ〜１２Ｄ）は、複数個が、その平面的配置が略放射状となるようにして、前記保持部（保持面８３Ａの外縁部、治具底面８３Ｂの外縁部、保持面８３Ｃ、又は保持部８３Ｄ１）に取り付けられること
を特徴とする。
【００２１】
また、本発明の請求項６に係る光学素材研磨方法は、
請求項４記載の光学素材研磨方法において、
前記光学素材当接部材（１２Ａ〜１２Ｄ）の前記第２面（２２Ａ〜２２Ｄ）には接着剤が塗布され、前記保持部（保持面８３Ａの外縁部、治具底面８３Ｂの外縁部、保持面８３Ｃ、又は保持部８３Ｄ１）に取り付けられること
を特徴とする。
【００２２】
【発明の実施の形態】
以下、本発明の実施形態について、図面を参照しながら詳細に説明する。
【００２３】
（１）第１実施形態
図１は、本発明の第１実施形態である光学素材保持用治具を用いた光学素材のスムージング加工工程又は磨き加工工程の方法を説明する図である。
【００２４】
図１に示すように、本発明の第１実施形態である光学素材保持用治具１Ａは、略円盤状の治具本体８１Ａの保持面８３Ａ（図１における下面）の外縁部付近に、光学素材当接部材１２Ａが設置され、この光学素材当接部材１２Ａの水平部１２Ａ１により光学素材Ｍ１の被保持面Ｓ２１が保持されるように構成されている。その他の構成要素の構成と作用は、図７に示した従来例の場合と同様であるので、その説明は省略する。
【００２５】
また、図２は、本発明の第１実施形態である光学素材保持用治具のさらに詳細な構成を示す図であり、図２（Ａ）は治具本体８１Ａの下面を下方から見た平面図を、図２（Ｂ）は治具本体８１Ａの保持面８３Ａ（図１における下面）の外縁部付近の拡大図を、それぞれ示している。
【００２６】
図２（Ａ）及び図２（Ｂ）に示すように、光学素材当接部材１２Ａは、治具本体８１Ａの保持面８３Ａ（図１における下面）の外縁部付近に、略放射状に設置されている。
【００２７】
光学素材当接部材１２Ａは、シート状に形成されている。厚みは、例えば、約０．１ミリメートルから３ミリメートル程度である。また、このシートの一方の表面である第１面２１Ａは、非粘着性を有するとともに、所定の値以上の摩擦係数を有するように作製されている。また、このシートの他方の表面である第２面２２Ａには、粘着材２３Ａが塗布されている。このため、第２面２２Ａは、治具本体８１Ａの保持面８３Ａ（図１における下面）の外縁部付近の表面に密接されて取り付けられている。
【００２８】
上記した光学素材当接部材１２Ａの材料としては、人造皮革などが用いられる。人造皮革には、合成皮革と人工皮革が含まれる。合成皮革は、織布、不織布、編布などの基材の一面に、合成樹脂材料（発泡性ポリウレタン、ポリアミド等）からなり皮を模擬した表面層を一体化させたものである。また、人工皮革は、繊維部材を不規則かつ三次元立体的にからみ合わせた繊維層と、合成樹脂材料（発泡性ポリウレタン、ポリアミド等）を繊維層の上にコーティングして微細な小孔を形成させた表面層からなるものである。また、人工皮革には、繊維層と表面層との間に、織布、不織布、編布などを挟み込んだ３層構造のものも含まれる。人工皮革としては、表面層を起毛機等により毛羽立ててスエード（裏皮）状にしたものも含まれる。このようなスエード状の部材の場合には、その表面には、多数の短く小径の毛状部材が形成されることになる。
【００２９】
上記した粘着材２３Ａの材料としては、各種ゴム系材料に各種合成樹脂等を配合して生成され粘着テープや粘着ラベルの裏面に塗布されている感圧接着剤が利用可能である。また、公知の接着剤等も利用可能である。
【００３０】
また、上記した光学素材当接部材１２Ａとしては、粘着材２３Ａを塗布した後に、治具本体８１Ａの保持面８３Ａ（図１における下面）の外縁部付近の表面に貼り付けたものが使用可能である。また、粘着材２３Ａが、あらかじめ塗布されるとともに、塗布された粘着材２３Ａの表面に、剥離可能な接着防止部材（剥離剤が塗布された紙状の部材など。図示せず。）があらかじめ貼着されたものも使用可能である。また、このような光学素材当接部材１２Ａとしては、所定の形状に作製されたもののほか、シート状に形成され切断加工により各種の形状又は寸法とすることができるように構成されたものも使用可能である。
【００３１】
次に、上記した本発明の第１実施形態である光学素材保持用治具１Ａの作用を説明する。
【００３２】
光学素材当接部材１２Ａの第１面２１Ａは、所定の値以上の摩擦係数を有している。このため、研磨時には、上記した従来例（図７参照）の場合とまったく同様に、光学素材保持用治具１Ａは光学素材Ｍ１の被保持面Ｓ２１を確実に保持するため、光学素材Ｍ１と光学素材保持用治具１Ａは一体となって揺動しつつ回転し、光学素材Ｍ１の被研磨面Ｓ１１は、研磨面７１の形状と略同一となるように研磨される。また、光学素材当接部材１２Ａの第１面２１Ａは、非粘着性を有している。このため、研磨終了後、駆動部材９２を図１における上方に移動させれば、光学素材保持用治具１Ａは、光学素材Ｍ１から上方へ持ち上げるだけで、容易に取り外すことができる。
【００３３】
したがって、他の形状又は寸法の光学素材の研磨にも使用することができ、汎用性に富む。
【００３４】
また、図２（Ｂ）に示すように、治具本体８１Ａの下面と、光学素材Ｍ１の被保持面Ｓ２１（図の上面）との間には、空隙Ｖ１ができるが、この空隙Ｖ１の内部に、砂状の研磨材、水スラリー状等の研磨剤等（図示せず）が入り込んでも、まったく問題はない。
【００３５】
図３は、本発明の第１実施形態である光学素材保持用治具を用いた光学素材のスムージング加工工程又は磨き加工工程の他の方法を説明する図である。この場合の光学素材Ｍ２は、被研磨面Ｓ１２（図３における下面）が球面（下に向かう凸面）状で、被研磨面Ｓ１２とは逆側の面である被保持面Ｓ２２（図３における上面）が球面（凹面）状となる光学素材である。
【００３６】
本発明の第１実施形態である光学素材保持用治具１Ａは、図３に示す光学素材Ｍ２の場合にも、上記とまったく同様の作用によって、研磨時には光学素材Ｍ２を確実に保持し、研磨終了後は容易に取り外すことができる。また、治具本体８１Ａの下面と、光学素材Ｍ２の被保持面Ｓ２２（図の上面）との間に形成される空隙Ｖ２の内部に、砂状の研磨材、水スラリー状等の研磨剤等（図示せず）が入り込んでも、まったく問題はない。
【００３７】
上記した第１実施形態において、駆動部材９２と嵌合部９１は、特許請求の範囲における駆動手段に相当している。また、治具本体８１Ａの上部に形成された嵌合凹部８４Ａは、特許請求の範囲における駆動手段接続部に相当している。また、治具本体８１Ａの保持面８３Ａ（図１における下面）の外縁部付近は、特許請求の範囲における保持部に相当している。また、光学素材当接部材１２Ａの第１面２１Ａは、特許請求の範囲における被保持面当接部に相当している。また、粘着材２３Ａは、特許請求の範囲における貼着性物質に相当している。
【００３８】
（２）第２実施形態
本発明は、他の構成によっても実現可能である。図４は、本発明の第２実施形態である光学素材保持用治具のさらに詳細な構成を示す図である。
【００３９】
図４に示すように、本発明の第２実施形態である光学素材保持用治具１Ｂは、略円盤状で底面が凹曲面の治具本体８１Ｂの治具底面８３Ｂ（図４における下面）の外縁部付近に、光学素材当接部材１２Ｂが設置され、この光学素材当接部材１２Ｂのエッジ状の部分１２Ｂ１により光学素材Ｍ３の被保持面Ｓ２３が保持されるように構成されている。この場合の光学素材Ｍ３は、被研磨面Ｓ１３（図４における下面）が球面（凹面）状で、被研磨面Ｓ１３とは逆側の面である被保持面Ｓ２３（図４における上面）が球面（凸面）である光学素材である。その他の構成要素の構成と作用は、図７に示した従来例の場合と同様であるので、その説明は省略する。
【００４０】
図示はしていないが、光学素材当接部材１２Ｂは、治具本体８１Ｂの治具底面８３Ｂ（図４における下面）の外縁部付近に、略放射状に設置されている。
【００４１】
光学素材当接部材１２Ｂは、シート状に形成されている。厚みは、例えば、約０．１ミリメートルから３ミリメートル程度である。また、このシートの一方の表面である第１面２１Ｂは、非粘着性を有するとともに、所定の値以上の摩擦係数を有するように作製されている。また、このシートの他方の表面である第２面２２Ｂには、粘着材２３Ｂが塗布されている。このため、第２面２２Ｂは、治具本体８１Ｂの治具底面８３Ｂ（図４における下面）の外縁部付近の表面に密接されて取り付けられている。
【００４２】
上記した光学素材当接部材１２Ｂの材料としては、第１実施形態の光学素材当接部材１２Ａの材料と同様なものが用いられる。また、粘着材２３Ｂの材料としては、第１実施形態の粘着材２３Ａの材料と同様なものが用いられる。
【００４３】
また、上記した光学素材当接部材１２Ｂとしては、粘着材２３Ｂを塗布した後に、治具本体８１Ｂの治具底面８３Ｂ（図４における下面）の外縁部付近の表面に貼り付けたものが使用可能である。また、粘着材２３Ｂが、あらかじめ塗布されるとともに、塗布された粘着材２３Ｂの表面に、剥離可能な接着防止部材（剥離剤が塗布された紙状の部材など。図示せず。）があらかじめ貼着されたものも使用可能である。また、このような光学素材当接部材１２Ｂとしては、所定の形状に作製されたもののほか、シート状に形成され切断加工により各種の形状又は寸法とすることができるように構成されたものも使用可能である。
【００４４】
次に、上記した本発明の第２実施形態である光学素材保持用治具１Ｂの作用を説明する。
【００４５】
光学素材当接部材１２Ｂの第１面２１Ｂは、所定の値以上の摩擦係数を有している。このため、研磨時には、上記した従来例（図７参照）の場合とまったく同様に、光学素材保持用治具１Ｂは光学素材Ｍ３の被保持面Ｓ２３を確実に保持するため、光学素材Ｍ３と光学素材保持用治具１Ｂは一体となって揺動しつつ回転し、光学素材Ｍ３の被研磨面Ｓ１３は、研磨面７１（図１及び図７を参照）の形状と略同一となるように研磨される。また、光学素材当接部材１２Ｂの第１面２１Ｂは、非粘着性を有している。このため、研磨終了後、駆動部材９２（図１及び図７を参照）を上方に移動させれば、光学素材保持用治具１Ｂは、光学素材Ｍ３から上方へ持ち上げるだけで、容易に取り外すことができる。
【００４６】
したがって、他の形状又は寸法の光学素材の研磨にも使用することができ、汎用性に富む。
【００４７】
また、図４（Ｂ）に示すように、治具本体８１Ｂの下面と、光学素材Ｍ３の被保持面Ｓ２３（図の上面）との間には、空隙Ｖ２ができるが、この空隙Ｖ２の内部に、砂状の研磨材、水スラリー状等の研磨剤等（図示せず）が入り込んでも、まったく問題はない。
【００４８】
上記した第２実施形態において、駆動部材９２と嵌合部９１（図１及び図７を参照）は、特許請求の範囲における駆動手段に相当している。また、治具本体８１Ｂの上部に形成された嵌合凹部８４Ｂは、特許請求の範囲における駆動手段接続部に相当している。また、治具本体８１Ｂの治具底面８３Ｂ（図４における下面）の外縁部付近は、特許請求の範囲における保持部に相当している。また、光学素材当接部材１２Ｂの第１面２１Ｂは、特許請求の範囲における被保持面当接部に相当している。また、粘着材２３Ｂは、特許請求の範囲における貼着性物質に相当している。
【００４９】
（３）第３実施形態
本発明は、他の構成によっても実現可能である。図５は、本発明の第３実施形態である光学素材保持用治具のさらに詳細な構成を示す図である。
【００５０】
図５に示すように、本発明の第３実施形態である光学素材保持用治具１Ｃは、略円盤状で外周部が下方に垂下した形状の治具本体８１Ｃの保持面８３Ｃ（図５における円盤外周の垂下部の下面）の付近に、光学素材当接部材１２Ｃが設置され、この光学素材当接部材１２Ｃの水平部１２Ｃ１により光学素材Ｍ４の被保持面Ｓ２４が保持されるように構成されている。この場合の光学素材Ｍ４は、被研磨面Ｓ１４（図５における下面）が球面（凸面）状で、被研磨面Ｓ１４とは逆側の面である被保持面Ｓ２４（図５における上面）が球面（凹面）である光学素材である。その他の構成要素の構成と作用は、図７に示した従来例の場合と同様であるので、その説明は省略する。
【００５１】
図示はしていないが、光学素材当接部材１２Ｃは、治具本体８１Ｃの保持面８３Ｃ（図５における下面）の付近に、略放射状に設置されている。
【００５２】
光学素材当接部材１２Ｃは、シート状に形成されている。厚みは、例えば、約０．１ミリメートルから３ミリメートル程度である。また、このシートの一方の表面である第１面２１Ｃは、非粘着性を有するとともに、所定の値以上の摩擦係数を有するように作製されている。また、このシートの他方の表面である第２面２２Ｃには、粘着材２３Ｃが塗布されている。このため、第２面２２Ｃは、治具本体８１Ｃの保持面８３Ｃ（図５における下面）の付近の表面に密接されて取り付けられている。
【００５３】
上記した光学素材当接部材１２Ｃの材料としては、第１実施形態の光学素材当接部材１２Ａの材料と同様なものが用いられる。また、粘着材２３Ｃの材料としては、第１実施形態の粘着材２３Ａの材料と同様なものが用いられる。
【００５４】
また、上記した光学素材当接部材１２Ｃとしては、粘着材２３Ｃを塗布した後に、治具本体８１Ｃの保持面８３Ｃ（図５における下面）の付近の表面に貼り付けたものが使用可能である。また、粘着材２３Ｃが、あらかじめ塗布されるとともに、塗布された粘着材２３Ｃの表面に、剥離可能な接着防止部材（剥離剤が塗布された紙状の部材など。図示せず。）があらかじめ貼着されたものも使用可能である。また、このような光学素材当接部材１２Ｃとしては、所定の形状に作製されたもののほか、シート状に形成され切断加工により各種の形状又は寸法とすることができるように構成されたものも使用可能である。
【００５５】
次に、上記した本発明の第３実施形態である光学素材保持用治具１Ｃの作用を説明する。
【００５６】
光学素材当接部材１２Ｃの第１面２１Ｃは、所定の値以上の摩擦係数を有している。このため、研磨時には、上記した従来例（図７参照）の場合とまったく同様に、光学素材保持用治具１Ｃは光学素材Ｍ４の被保持面Ｓ２４を確実に保持するため、光学素材Ｍ４と光学素材保持用治具１Ｃは一体となって揺動しつつ回転し、光学素材Ｍ４の被研磨面Ｓ１４は、研磨面７１（図１及び図７を参照）の形状と略同一となるように研磨される。また、光学素材当接部材１２Ｃの第１面２１Ｃは、非粘着性を有している。このため、研磨終了後、駆動部材９２（図１及び図７を参照）を上方に移動させれば、光学素材保持用治具１Ｃは、光学素材Ｍ４から上方へ持ち上げるだけで、容易に取り外すことができる。
【００５７】
したがって、他の形状又は寸法の光学素材の研磨にも使用することができ、汎用性に富む。
【００５８】
上記した第３実施形態において、駆動部材９２と嵌合部９１（図１及び図７を参照）は、特許請求の範囲における駆動手段に相当している。また、治具本体８１Ｃの上部に形成された嵌合凹部８４Ｃは、特許請求の範囲における駆動手段接続部に相当している。また、治具本体８１Ｃの保持面８３Ｃ（図５における下面）の付近は、特許請求の範囲における保持部に相当している。また、光学素材当接部材１２Ｃの第１面２１Ｃは、特許請求の範囲における被保持面当接部に相当している。また、粘着材２３Ｃは、特許請求の範囲における貼着性物質に相当している。
【００５９】
（４）第４実施形態
本発明は、他の構成によっても実現可能である。図６は、本発明の第４実施形態である光学素材保持用治具のさらに詳細な構成を示す図である。
【００６０】
図６に示すように、本発明の第４実施形態である光学素材保持用治具１Ｄは、略円盤状で外周部が下方に垂下した形状の治具本体８１Ｄの垂下部底面８３Ｄの外縁部付近に、光学素材当接部材１２Ｄが設置され、この光学素材当接部材１２Ｄのエッジ状の部分である保持部１２Ｄ１により光学素材Ｍ５の被保持面Ｓ２５が保持されるように構成されている。この場合の光学素材Ｍ５は、被保持面Ｓ２５（図６における上面）が球面（凸面）である光学素材である。その他の構成要素の構成と作用は、図７に示した従来例の場合と同様であるので、その説明は省略する。
【００６１】
図示はしていないが、光学素材当接部材１２Ｄは、治具本体８１Ｄの垂下部底面８３Ｄの外縁部である保持部８３Ｄ１（図６における鋭角の頂点付近）の付近に、略放射状に設置されている。
【００６２】
光学素材当接部材１２Ｄは、シート状に形成されている。厚みは、例えば、約０．１ミリメートルから３ミリメートル程度である。また、このシートの一方の表面である第１面２１Ｄは、非粘着性を有するとともに、所定の値以上の摩擦係数を有するように作製されている。また、このシートの他方の表面である第２面２２Ｄには、粘着材２３Ｄが塗布されている。このため、第２面２２Ｄは、治具本体８１Ｄの保持部８３Ｄ１の外縁部付近の表面に密接されて取り付けられている。
【００６３】
上記した光学素材当接部材１２Ｄの材料としては、第１実施形態の光学素材当接部材１２Ａの材料と同様なものが用いられる。また、粘着材２３Ｄの材料としては、第１実施形態の粘着材２３Ａの材料と同様なものが用いられる。
【００６４】
また、上記した光学素材当接部材１２Ｄとしては、粘着材２３Ｄを塗布した後に、治具本体８１Ｄの保持部８３Ｄ１の外縁部付近の表面に貼り付けたものが使用可能である。また、粘着材２３Ｄが、あらかじめ塗布されるとともに、塗布された粘着材２３Ｄの表面に、剥離可能な接着防止部材（剥離剤が塗布された紙状の部材など。図示せず。）があらかじめ貼着されたものも使用可能である。また、このような光学素材当接部材１２Ｄとしては、所定の形状に作製されたもののほか、シート状に形成され切断加工により各種の形状又は寸法とすることができるように構成されたものも使用可能である。
【００６５】
次に、上記した本発明の第４実施形態である光学素材保持用治具１Ｄの作用を説明する。
【００６６】
光学素材当接部材１２Ｄの第１面２１Ｄは、所定の値以上の摩擦係数を有している。このため、研磨時には、上記した従来例（図７参照）の場合とまったく同様に、光学素材保持用治具１Ｄは光学素材Ｍ５の被保持面Ｓ２５を確実に保持するため、光学素材Ｍ５と光学素材保持用治具１Ｄは一体となって揺動しつつ回転し、光学素材Ｍ５の被研磨面Ｓ１４は、研磨面７１（図１及び図７を参照）の形状と略同一となるように研磨される。また、光学素材当接部材１２Ｄの第１面２１Ｄは、非粘着性を有している。このため、研磨終了後、駆動部材９２（図１及び図７を参照）を上方に移動させれば、光学素材保持用治具１Ｄは、光学素材Ｍ５から上方へ持ち上げるだけで、容易に取り外すことができる。
【００６７】
したがって、他の形状又は寸法の光学素材の研磨にも使用することができ、汎用性に富む。
【００６８】
上記した第４実施形態において、駆動部材９２と嵌合部９１（図示せず。図１及び図７を参照。）は、特許請求の範囲における駆動手段に相当している。また、治具本体８１Ｄの上部に形成された嵌合凹部（図示せず）は、特許請求の範囲における駆動手段接続部に相当している。また、治具本体８１Ｄの保持部８３Ｄ１の付近は、特許請求の範囲における保持部に相当している。また、光学素材当接部材１２Ｄの第１面２１Ｄは、特許請求の範囲における被保持面当接部に相当している。また、粘着材２３Ｄは、特許請求の範囲における貼着性物質に相当している。
【００６９】
なお、本発明は、上記各実施形態に限定されるものではない。上記各実施形態は、例示であり、本発明の特許請求の範囲に記載された技術的思想と実質的に同一な構成を有し、同様な作用効果を奏するものは、いかなるものであっても本発明の技術的範囲に包含される。
【００７０】
例えば、上記各実施形態においては、光学素材当接部材の材料として、人造皮革を例に挙げて説明したが、本発明はこれには限定されず、他の材質の光学素材当接部材を用いてもよい。例えば、光学素材当接部材の材料としては、金属材料（合金、金属複合材料を含む）や合成樹脂材料（合成樹脂材料を母材とする複合材料を含む）からなり、被保持面当接部（又は第１面）となる側に、複数の凹凸や、複数の波形の起伏等が設けられたもの、ゴム系材料（天然ゴム、合成ゴム、これらを母材とする複合材料を含む）なども使用可能である。要は、光学素材当接部材は、非粘着性を有する被保持面当接部が被保持面に当接可能であるとともに、被保持面当接部は所定の値以上の摩擦係数を有し、治具本体の保持部の適宜箇所の表面に膜状又は層状に設置されるものであれば、どのような部材であってもよい。
【００７１】
また、上記各実施形態においては、貼着性物質の材料として、感圧接着剤、公知の接着剤等を例に挙げて説明したが、本発明はこれには限定されず、他の材質の貼着性物質を用いてもよい。要は、貼着性物質は、粘着性、又は接着性を有するものであれば、どのような物質であってもよい。
【００７２】
また、光学素材当接部材の設置箇所についても、上記以外の箇所であってもよく、治具本体（例えば８１Ａ等）の保持面（例えば８３Ａ等）の外縁部の隅角部の水平部と鉛直部の両方を含む箇所以外の箇所、例えば、治具本体（例えば８１Ａ等）の保持面（例えば８３Ａ等）の外縁部の鉛直部は含まず、水平部のみに設置されてもよい。要は、光学素材当接部材の設置箇所は、治具本体の保持部の適宜箇所の表面であれば、いずれの箇所であってもよい。
【００７３】
また、光学素材当接部材は、最初は流動状態で粘着性又は接着性を有し、治具本体の保持部の適宜箇所の表面に塗布された後に所定の時間の経過により硬化して非粘着性と所定の値以上の摩擦係数の摩擦抵抗性を発揮し、被保持面当接部を構成するものであってもよい。例えば、有機溶剤等で溶解させた合成樹脂材料やゴム系材料などが利用可能である。
【００７４】
また、図２（Ａ）に示す長さＬは、図示の場合よりも長くてもよいし、短くてもよい。また、光学素材当接部材の個数も任意である。また、光学素材当接部材は、治具本体の保持部（例えば下面）の外縁付近を環状に被覆する形状であってもよい。しかし、環状に被覆すると、光学素材と光学素材保持用治具との間の空間が密閉され、内部の空気が、研磨時の摩擦によって生じる熱で膨張し、光学素材と光学素材保持用治具とを離間させる方向に力が働いてしまう。このため、図２（Ａ）に示した第１実施形態のように、光学素材当接部材を互いに間隔をあけて配置した方が、熱で膨張した空気を、光学素材当接部材どうしの間の隙間から逃がすことができ、より良い効果が得られる。
【００７５】
また、本発明における光学素材は、略円盤状の形状のものには限定されず、他の形状のものであってもよい。例えば、シリンドリカル・レンズ、シリンドリカル・ミラーとして用いるもの（一面が円筒測面）であってもよい。円筒側面は、凸面であってもよいし、凹面であってもよい。
【００７６】
【発明の効果】
以上説明したように、本発明に係る光学素材保持用治具、及び光学素材研磨方法によれば、光学素材（Ｍ１〜Ｍ５）の被研磨面（Ｓ１１〜Ｓ１５）を、移動する研磨面（７１）によって研磨する際に、光学素材（Ｍ１〜Ｍ５）を保持する光学素材保持用治具（１Ａ〜１Ｄ）を用い、この光学素材保持用治具（１Ａ〜１Ｄ）においては、光学素材（Ｍ１〜Ｍ５）の被研磨面（Ｓ１１〜Ｓ１５）とは逆側の面である被保持面（Ｓ２１〜Ｓ２５）に対向する部分である保持部（保持面８３Ａの外縁部、治具底面８３Ｂの外縁部、保持面８３Ｃ、又は保持部８３Ｄ１）を有するとともに、被研磨面（Ｓ１１〜Ｓ１５）を研磨面（７１）に密接させつつ摺動させるように駆動する駆動部材（９２）の先端の嵌合部（９１）と接続可能な駆動手段接続部（８４Ａ〜８４Ｃ）を有する治具本体（８１Ａ〜８１Ｄ）の保持部（保持面８３Ａの外縁部、治具底面８３Ｂの外縁部、保持面８３Ｃ、又は保持部８３Ｄ１）に、織布又は不織布若しくは編布を含む基材の一面に合成樹脂材料からなり皮を模擬した表面層を一体化させた合成皮革、又は繊維部材を不規則かつ三次元立体的にからみ合わせた繊維層の上に合成樹脂材料をコーティングして微細な小孔を形成させた表面層を有する人工皮革、又は繊維層と表面層の間に織布又は不織布若しくは編布を挟み込んだ３層構造の人工皮革、若しくは表面層を毛羽立ててスエード状又は裏皮状にし表面に多数の短く小径の毛状部材が形成された人工皮革からなり非粘着性を有する表面である第１面（２１Ａ〜２１Ｄ）と、第１面（２１Ａ〜２１Ｄ）とは逆側の表面である第２面（２２Ａ〜２２Ｄ）を有し、シート状に形成された光学素材当接部材（１２Ａ〜１２Ｄ）を、第２面（２２Ａ〜２２Ｄ）が密接するようにして取り付けるように構成したので、光学素材（Ｍ１〜Ｍ５）の研磨時には、非粘着性を有する第１面（２１Ａ〜２１Ｄ）を、光学素材（Ｍ１〜Ｍ５）の被保持面（Ｓ２１〜Ｓ２５）に当接させることにより光学素材（Ｍ１〜Ｍ５）を保持可能となり、研磨終了後は、駆動部材（９２）を上方へ持ち上げるだけで取り外し可能となる、という利点を有している。したがって、他の形状又は寸法の光学素材の研磨にも使用することができ、汎用性に富む、という利点も有している。
【図面の簡単な説明】
【図１】本発明の第１実施形態である光学素材保持用治具を用いた光学素材のスムージング加工工程又は磨き加工工程の方法を説明する図である。
【図２】本発明の第１実施形態である光学素材保持用治具のさらに詳細な構成を示す図である。
【図３】本発明の第１実施形態である光学素材保持用治具を用いた光学素材のスムージング加工工程又は磨き加工工程の他の方法を説明する図である。
【図４】本発明の第２実施形態である光学素材保持用治具のさらに詳細な構成を示す図である。
【図５】本発明の第３実施形態である光学素材保持用治具のさらに詳細な構成を示す図である。
【図６】本発明の第４実施形態である光学素材保持用治具のさらに詳細な構成を示す図である。
【図７】従来の光学素材のスムージング加工工程又は磨き加工工程の方法の一例を説明する図である。
【符号の説明】
１Ａ〜１Ｄ 光学素材保持用治具
１２Ａ 光学素材当接部材
１２Ａ１ 水平部
１２Ｂ 光学素材当接部材
１２Ｂ１ エッジ部
１２Ｃ 光学素材当接部材
１２Ｃ１ 水平部
１２Ｄ 光学素材当接部材
１２Ｄ１ エッジ部
２１Ａ〜２１Ｄ 第１面
２２Ａ〜２２Ｄ 第２面
２３Ａ〜２３Ｄ 粘着材
７０ 研磨皿
７１ 研磨面
７２ 回転軸
８０ 光学素材保持用治具
８１Ａ〜８１Ｄ 治具本体
８３Ａ 保持面
８３Ｂ 治具底面
８３Ｂ１ 保持部
８３Ｃ 保持面
８３Ｄ 垂下部底面
８３Ｄ１ 保持部
８４Ａ〜８４Ｃ 嵌合凹部
８５Ａ〜８５Ｄ 外側面
８６Ｃ〜８６Ｄ 内側面
９０ 駆動装置
９１ 嵌合部
９２ 駆動部材
Ｍ１〜Ｍ５ 光学素材
Ｐ ピッチ
Ｓ１１〜Ｓ１５ 被研磨面
Ｓ２１〜Ｓ２５ 被保持面
Ｖ１ 空隙[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an optical material holding jig for holding an optical material when the surface of an optical material made of an optical material such as optical glass is polished into a predetermined shape to form an optical component such as a lens, and an optical The present invention relates to a material polishing method.
[0002]
[Prior art]
Conventionally, optical parts, such as lenses and mirrors (mirrors), are optical materials that have been formed into plate-like, disc-like, substantially lens-like shapes using optical materials containing optical glass such as crown glass and flint glass. And an appropriate surface of the optical material is prepared by grinding or polishing so that the surface thereof has a predetermined lens curved surface, mirror curved surface (hereinafter referred to as “optical functional surface”), or the like. It was.
[0003]
In this way, when optical parts such as lenses are manufactured by performing processing such as grinding and polishing on an optical material made of an optical material, (1) material removal and (2) optical function are included in the above optical material. In general, surface processing and (3) outer diameter processing are performed in this order.
[0004]
The material removal processing step is a step of roughly forming an optical material for one lens to obtain an optical material to be processed. Further, the optical functional surface processing step is performed in the order of a) rough processing step, b) smoothing processing step, and c) polishing (polishing) processing step. In addition, the outer diameter machining process is also called “centering”, and the optical material that has been subjected to optical functional surface processing is mounted on a cylindrical grinder called “centering machine”, etc. In this process, unnecessary portions are removed with a grindstone or the like to obtain a lens or mirror having a predetermined diameter and outer diameter.
[0005]
Among the optical functional surface processing described above, the first a) rough processing step is a step for improving the surface roughness by bringing the dimension of the optical material taken from the material closer to the final value of the lens or the like. Or “curve generator grinding”. The subsequent b) smoothing process is a process in which the roughness of the surface generated by roughing is made finer and the thickness dimension of the lens or the like is brought within the required accuracy, and is performed by “sanding” or “diamond smoothing”. . The last c) polishing step is a step of finishing the optical functional surface such as a lens surface into a mirror shape and putting its dimensions and shape within the final accuracy, and is performed using an abrasive or the like.
[0006]
FIG. 7 is a diagram for explaining one of the conventional examples of the above-described smoothing process and polishing process. FIG. 7 shows a case where the optically functional surface is formed by polishing the polished surface S11 of the lens-shaped optical material M1 into a spherical surface (concave surface) to create an optical component. In this case, the optical material M1 has a polished surface S11 (lower surface in FIG. 7) having a spherical surface (concave surface) and a held surface S21 (upper surface in FIG. 7) that is the surface opposite to the polished surface S11. It is an optical material.
[0007]
In FIG. 7, reference numeral 70 denotes a polishing dish, reference numeral 80 denotes an optical material holding jig (so-called “lens holder”), and reference numeral 90 denotes a driving device.
[0008]
In the method shown in FIG. 7, a single optical material M1 that has been subjected to roughing such as roughening is held by an optical material holding jig 80, and a convex spherical polishing surface 71 is formed on the surface. 70. Thereafter, the polishing plate 70 is rotated by rotating a rotating shaft 72 provided at the lower portion of the polishing plate 70 by a rotation driving means (for example, an electric motor or the like) (not shown). Thereby, the to-be-polished surface S11 of the optical material M1 is polished into a concave spherical shape, and the smoothing process and the polishing process are performed.
[0009]
In this case, the optical material holding jig 80 has a pitch P that is heated to a high temperature and has fluidity and adhesiveness on the holding surface 83A (lower surface in FIG. 7) of the substantially disc-shaped jig body 81A. The surface to be held S21 of the optical material M1 is held by this pitch P. The pitch P is a bitumen material extracted from wood, coal, oil, or the like.
[0010]
A fitting recess 84A, which is a substantially hemispherical recess, is formed on the upper surface of the jig body 81A. A substantially spherical fitting portion 91 at the tip (lower end in FIG. 7) of the drive member 92 is fitted into the fitting recess 84A. The drive member 92 is driven by a drive source (not shown) so as to perform a reciprocating linear motion in the left-right direction shown in FIG.
[0011]
With such a configuration, the optical material M1 is slid so as to swing on the polishing surface 71 of the polishing plate 70 while being in close contact with the polishing surface 70. At the same time, the polishing plate 70 is rotated around the central axis of the rotation shaft 72. Rotates as a line. In this case, the fitting recess 84A at the upper part of the jig body 81A and the fitting part 91 at the tip of the driving member 92 serve as a pivot having the same action as the universal joint. For this reason, the optical material M1 and the optical material holding jig 80 rotate while swinging together, and the polished surface S11 of the optical material M1 is polished so as to be substantially the same as the shape of the polishing surface 71. The At this time, the surface of the polishing surface 71 is coated or dispersed with a sand-like abrasive, an abrasive such as a water slurry (not shown), and is interposed between the surface to be polished S11 of the optical material M1. Assist the polishing action.
[0012]
[Problems to be solved by the invention]
However, the conventional optical material polishing method described above has the following problems.
[0013]
(B) Since the optical material is held on the optical material holding jig by polishing using the adhesiveness of the pitch, it is necessary to heat the pitch until it reaches a high temperature. . For this reason, the adoption of another method with a better working environment has been requested.
[0014]
(B) Since a dedicated optical material holding jig is used for each type and size of the lens, the production cost of the jig, the storage cost of the jig, etc. are required. For this reason, it has been requested to adopt another method which is less expensive and versatile.
[0015]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and the problem to be solved by the present invention is to provide a jig for holding an optical material and a method for polishing an optical material that are simple, simple, and versatile. There is to do.
[0016]
[Means for Solving the Problems]
  In order to solve the above problems, the present inventionThe optical material holding jig according to claim 1 is:
Optical material holding jig (1A) for holding the optical materials (M1 to M5) when the polished surfaces (S11 to S15) of the optical materials (M1 to M5) are polished by the moving polishing surface (71). ~ 1D),
A holding portion (an outer edge portion of the holding surface 83A, which is a portion facing a holding surface (S21 to S25) that is a surface opposite to the polished surface (S11 to S15) of the optical material (M1 to M5). A driving member that has an outer edge portion of the jig bottom surface 83B, a holding surface 83C, or a holding portion 83D1) and that drives the surface to be polished (S11 to S15) to slide while being in close contact with the polishing surface (71). (92) The holding portion (the outer edge portion of the holding surface 83A, the jig bottom surface) of the jig main body (81A to 81D) having the drive means connecting portions (84A to 84C) connectable to the fitting portion (91) at the tip of the tip. 83B on the outer edge, holding surface 83C, or holding portion 83D1)
Synthetic leather in which a surface layer simulating a leather made of a synthetic resin material is integrated on one side of a base material including a woven fabric, a nonwoven fabric or a knitted fabric, or a fiber layer in which fiber members are irregularly and three-dimensionally entangled Artificial leather having a surface layer in which fine resin pores are formed by coating a synthetic resin material thereon, or a three-layer structure in which a woven fabric, a nonwoven fabric or a knitted fabric is sandwiched between the fiber layer and the surface layer First surface (21A to 21A) which is made of artificial leather or non-adhesive surface made of artificial leather in which the surface layer is fluffed to form a suede or back skin and a large number of short, small-diameter hair members are formed on the surface. 21D) and optical material abutting members (12A to 12D) having a second surface (22A to 22D) which is a surface opposite to the first surface (21A to 21D) and formed in a sheet shape. , Said second surface (22A-22D There is attached so as to close,
At the time of polishing the optical material (M1 to M5), the non-adhesive first surfaces (21A to 21D) are brought into contact with the held surfaces (S21 to S25) of the optical material (M1 to M5). Thus, the optical material (M1 to M5) can be held, and after the polishing is finished, the optical member (M1 to M5) can be removed simply by moving the driving member (92) upward.It is characterized by that.
[0017]
  An optical material holding jig according to claim 2 of the present invention is
In the optical material holding jig according to claim 1,
A plurality of the optical material abutting members (12 </ b> A to 12 </ b> D) are arranged so that the planar arrangement thereof is substantially radial, and the holding portion (the outer edge portion of the holding surface 83 </ b> A, the outer edge portion of the jig bottom surface 83 </ b> B, the holding portion). Attached to the surface 83C or the holding portion 83D1)That
  It is characterized by.
[0018]
  Also,The jig for holding an optical material according to claim 3 of the present invention,
In the optical material holding jig according to claim 1,
Adhesive is applied to the second surfaces (22A to 22D) of the optical material contact members (12A to 12D), and the holding portions (the outer edge portion of the holding surface 83A, the outer edge portion of the jig bottom surface 83B, and the holding surface) are applied. 83C or holding part 83D1)That
  It is characterized by.
[0019]
  Also,An optical material polishing method according to claim 4 of the present invention includes:
An optical material polishing method for polishing a polished surface (S11 to S15) of an optical material (M1 to M5) with a moving polishing surface (71), and in the polishing, the optical material (M1 to M5) In the optical material holding jig (1A to 1D) using the optical material holding jig (1A to 1D) for holding
A holding portion (an outer edge portion of the holding surface 83A, which is a portion facing a holding surface (S21 to S25) that is a surface opposite to the polished surface (S11 to S15) of the optical material (M1 to M5). A driving member that has an outer edge portion of the jig bottom surface 83B, a holding surface 83C, or a holding portion 83D1) and that drives the surface to be polished (S11 to S15) to slide while being in close contact with the polishing surface (71). (92) The holding portion (the outer edge portion of the holding surface 83A, the jig bottom surface) of the jig main body (81A to 81D) having the drive means connecting portions (84A to 84C) connectable to the fitting portion (91) at the tip of the tip. 83B on the outer edge, holding surface 83C, or holding portion 83D1)
Synthetic leather in which a surface layer simulating a leather made of a synthetic resin material is integrated on one side of a base material including a woven fabric, a nonwoven fabric or a knitted fabric, or a fiber layer in which fiber members are irregularly and three-dimensionally entangled Artificial leather having a surface layer in which fine resin pores are formed by coating a synthetic resin material thereon, or a three-layer structure in which a woven fabric, a nonwoven fabric or a knitted fabric is sandwiched between the fiber layer and the surface layer First surface (21A to 21A) which is made of artificial leather or non-adhesive surface made of artificial leather in which the surface layer is fluffed to form a suede or back skin and a large number of short, small-diameter hair members are formed on the surface. 21D) and optical material abutting members (12A to 12D) having a second surface (22A to 22D) which is a surface opposite to the first surface (21A to 21D) and formed in a sheet shape. , Said second surface (22A-22D There is attached so as to close,
At the time of polishing the optical material (M1 to M5), the non-adhesive first surfaces (21A to 21D) are brought into contact with the held surfaces (S21 to S25) of the optical material (M1 to M5). Thus, the optical material (M1 to M5) can be held, and after the polishing is finished, the drive member (92) can be removed simply by lifting upward.To do.
[0020]
  Also,An optical material polishing method according to claim 5 of the present invention includes:
The optical material polishing method according to claim 4,
A plurality of the optical material abutting members (12 </ b> A to 12 </ b> D) are arranged so that the planar arrangement thereof is substantially radial, and the holding portion (the outer edge portion of the holding surface 83 </ b> A, the outer edge portion of the jig bottom surface 83 </ b> B, the holding portion). It is attached to the surface 83C or the holding part 83D1)
FeaturesThe
[0021]
  In addition, the present inventionThe optical material polishing method according to claim 6 is:
The optical material polishing method according to claim 4,
Adhesive is applied to the second surfaces (22A to 22D) of the optical material contact members (12A to 12D), and the holding portions (the outer edge portion of the holding surface 83A, the outer edge portion of the jig bottom surface 83B, and the holding surface) are applied. 83C or holding part 83D1)That
  It is characterized by.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0023]
(1) First embodiment
FIG. 1 is a diagram for explaining a method of a smoothing process or a polishing process of an optical material using the optical material holding jig according to the first embodiment of the present invention.
[0024]
As shown in FIG. 1, the optical material holding jig 1A according to the first embodiment of the present invention is provided near the outer edge of the holding surface 83A (the lower surface in FIG. 1) of the substantially disc-shaped jig body 81A. A material contact member 12A is installed, and the held surface S21 of the optical material M1 is held by the horizontal portion 12A1 of the optical material contact member 12A. Since the configuration and operation of the other components are the same as in the case of the conventional example shown in FIG.
[0025]
FIG. 2 is a diagram showing a more detailed configuration of the optical material holding jig according to the first embodiment of the present invention. FIG. 2A is a plan view of the lower surface of the jig body 81A as viewed from below. FIG. 2B shows an enlarged view of the vicinity of the outer edge of the holding surface 83A (the lower surface in FIG. 1) of the jig body 81A.
[0026]
As shown in FIGS. 2A and 2B, the optical material abutting member 12A is installed substantially radially near the outer edge of the holding surface 83A (the lower surface in FIG. 1) of the jig body 81A. Yes.
[0027]
The optical material contact member 12A is formed in a sheet shape. The thickness is, for example, about 0.1 millimeters to 3 millimeters. Further, the first surface 21A, which is one surface of the sheet, is made so as to have non-adhesiveness and a friction coefficient equal to or greater than a predetermined value. An adhesive material 23A is applied to the second surface 22A, which is the other surface of the sheet. Therefore, the second surface 22A is attached in close contact with the surface near the outer edge of the holding surface 83A (lower surface in FIG. 1) of the jig body 81A.
[0028]
Artificial leather or the like is used as the material of the optical material contact member 12A. Artificial leather includes synthetic leather and artificial leather. Synthetic leather is obtained by integrating a surface layer made of a synthetic resin material (foamable polyurethane, polyamide, etc.) and simulating leather on one surface of a substrate such as a woven fabric, a nonwoven fabric, or a knitted fabric. Artificial leather is coated with a fiber layer in which fiber members are irregularly and three-dimensionally entangled, and a synthetic resin material (foamable polyurethane, polyamide, etc.) is formed on the fiber layer to form fine pores. It consists of the surface layer made to make. Artificial leather also includes a three-layer structure in which a woven fabric, a nonwoven fabric, a knitted fabric or the like is sandwiched between a fiber layer and a surface layer. Examples of the artificial leather include those whose surface layer is fluffed with a raising machine or the like to form a suede (back). In the case of such a suede-like member, a large number of short, small-diameter hair-like members are formed on the surface.
[0029]
As the material of the above-mentioned adhesive material 23A, a pressure-sensitive adhesive produced by blending various synthetic materials with various rubber-based materials and applied to the back surface of the adhesive tape or the adhesive label can be used. Moreover, a well-known adhesive etc. can also be utilized.
[0030]
Further, as the optical material abutting member 12A described above, a member pasted on the surface in the vicinity of the outer edge portion of the holding surface 83A (the lower surface in FIG. 1) of the jig body 81A can be used after the adhesive material 23A is applied. is there. In addition, the adhesive material 23A is applied in advance, and a peelable adhesion preventing member (such as a paper-like member coated with a release agent, not shown) is pasted on the surface of the applied adhesive material 23A in advance. Wearable ones can also be used. Further, as such an optical material abutting member 12A, in addition to a member formed in a predetermined shape, a member that is formed in a sheet shape and can be formed into various shapes or dimensions by cutting is used. Is possible.
[0031]
Next, the operation of the optical material holding jig 1A according to the first embodiment of the present invention will be described.
[0032]
The first surface 21A of the optical material contact member 12A has a friction coefficient equal to or greater than a predetermined value. For this reason, at the time of polishing, the optical material holding jig 1A securely holds the held surface S21 of the optical material M1 in exactly the same manner as in the above-described conventional example (see FIG. 7). The material holding jig 1 </ b> A rotates while swinging integrally, and the polished surface S <b> 11 of the optical material M <b> 1 is polished so as to be substantially the same as the shape of the polishing surface 71. Further, the first surface 21A of the optical material contact member 12A has non-adhesiveness. For this reason, if the drive member 92 is moved upward in FIG. 1 after the polishing is completed, the optical material holding jig 1A can be easily removed simply by lifting the optical material M1 upward.
[0033]
Therefore, it can be used for polishing optical materials of other shapes or dimensions, and is versatile.
[0034]
Further, as shown in FIG. 2B, a gap V1 is formed between the lower surface of the jig body 81A and the held surface S21 (the upper surface in the figure) of the optical material M1, but the interior of the gap V1 is formed. Even if a sand-like abrasive, an abrasive such as water slurry (not shown) or the like enters, there is no problem at all.
[0035]
FIG. 3 is a diagram for explaining another method of the optical material smoothing process or polishing process using the optical material holding jig according to the first embodiment of the present invention. In this case, the optical material M2 has a surface to be polished S12 (lower surface in FIG. 3) having a spherical surface (convex surface facing downward), and a surface to be held S22 (an upper surface in FIG. 3) that is a surface opposite to the surface to be polished S12. ) Is an optical material having a spherical (concave) shape.
[0036]
In the case of the optical material M2 shown in FIG. 3, the optical material holding jig 1A according to the first embodiment of the present invention reliably holds the optical material M2 at the time of polishing by the same action as described above. It can be easily removed after completion. Further, a sand-like abrasive, an abrasive in the form of water slurry, etc., etc. are formed in the gap V2 formed between the lower surface of the jig body 81A and the held surface S22 (upper surface in the drawing) of the optical material M2. Even if it enters (not shown), there is no problem.
[0037]
In the first embodiment described above, the drive member 92 and the fitting portion 91 correspond to drive means in the claims. Further, the fitting recess 84A formed in the upper part of the jig body 81A corresponds to the driving means connecting portion in the claims. Further, the vicinity of the outer edge portion of the holding surface 83A (the lower surface in FIG. 1) of the jig main body 81A corresponds to the holding portion in the claims. Further, the first surface 21A of the optical material contact member 12A corresponds to the held surface contact portion in the claims. The adhesive material 23A corresponds to the sticking substance in the claims.
[0038]
(2) Second embodiment
The present invention can be realized by other configurations. FIG. 4 is a diagram showing a more detailed configuration of the optical material holding jig according to the second embodiment of the present invention.
[0039]
As shown in FIG. 4, the optical material holding jig 1B according to the second embodiment of the present invention is a jig bottom surface 83B (the lower surface in FIG. 4) of a jig body 81B having a substantially disk shape and a concave curved bottom surface. An optical material abutting member 12B is installed in the vicinity of the outer edge, and the held surface S23 of the optical material M3 is held by the edge portion 12B1 of the optical material abutting member 12B. The optical material M3 in this case has a polished surface S13 (lower surface in FIG. 4) having a spherical surface (concave surface) and a held surface S23 (upper surface in FIG. 4) opposite to the polished surface S13. It is an optical material that is a (convex surface). Since the configuration and operation of the other components are the same as in the case of the conventional example shown in FIG.
[0040]
Although not shown, the optical material abutting member 12B is disposed substantially radially near the outer edge of the jig bottom surface 83B (the lower surface in FIG. 4) of the jig main body 81B.
[0041]
The optical material contact member 12B is formed in a sheet shape. The thickness is, for example, about 0.1 millimeters to 3 millimeters. The first surface 21B, which is one surface of the sheet, is made so as to have non-adhesiveness and a friction coefficient equal to or greater than a predetermined value. Moreover, the adhesive material 23B is apply | coated to the 2nd surface 22B which is the other surface of this sheet | seat. Therefore, the second surface 22B is attached in close contact with the surface in the vicinity of the outer edge portion of the jig bottom surface 83B (lower surface in FIG. 4) of the jig main body 81B.
[0042]
As the material of the optical material contact member 12B described above, the same material as that of the optical material contact member 12A of the first embodiment is used. Further, as the material of the adhesive material 23B, the same material as that of the adhesive material 23A of the first embodiment is used.
[0043]
Further, as the optical material abutting member 12B described above, a member pasted on the surface near the outer edge of the jig bottom surface 83B (lower surface in FIG. 4) of the jig main body 81B can be used after the adhesive material 23B is applied. It is. In addition, the adhesive material 23B is applied in advance, and a peelable adhesion preventing member (such as a paper-like member coated with a release agent, not shown) is pasted on the surface of the applied adhesive material 23B in advance. Wearable ones can also be used. Further, as such an optical material abutting member 12B, in addition to a member formed in a predetermined shape, a member formed into a sheet shape and configured to have various shapes or dimensions by cutting is used. Is possible.
[0044]
Next, the operation of the optical material holding jig 1B according to the second embodiment of the present invention will be described.
[0045]
The first surface 21B of the optical material contact member 12B has a friction coefficient equal to or greater than a predetermined value. For this reason, at the time of polishing, the optical material holding jig 1B securely holds the held surface S23 of the optical material M3 in exactly the same manner as in the above-described conventional example (see FIG. 7). The material holding jig 1B rotates while swinging integrally, and the polished surface S13 of the optical material M3 is polished so as to be substantially the same as the shape of the polishing surface 71 (see FIGS. 1 and 7). Is done. Further, the first surface 21B of the optical material contact member 12B has non-adhesiveness. For this reason, when the driving member 92 (see FIGS. 1 and 7) is moved upward after polishing, the optical material holding jig 1B can be easily removed simply by lifting it upward from the optical material M3. Can do.
[0046]
Therefore, it can be used for polishing optical materials of other shapes or dimensions, and is versatile.
[0047]
As shown in FIG. 4B, a gap V2 is formed between the lower surface of the jig main body 81B and the held surface S23 (the upper surface in the figure) of the optical material M3. Even if a sand-like abrasive, an abrasive such as water slurry (not shown) or the like enters, there is no problem at all.
[0048]
In the second embodiment described above, the drive member 92 and the fitting portion 91 (see FIGS. 1 and 7) correspond to drive means in the claims. Further, the fitting recess 84B formed in the upper part of the jig main body 81B corresponds to the driving means connecting portion in the claims. Further, the vicinity of the outer edge portion of the jig bottom surface 83B (the lower surface in FIG. 4) of the jig body 81B corresponds to the holding portion in the claims. Further, the first surface 21B of the optical material contact member 12B corresponds to the held surface contact portion in the claims. Moreover, the adhesive material 23B is corresponded to the sticking substance in a claim.
[0049]
(3) Third embodiment
The present invention can be realized by other configurations. FIG. 5 is a view showing a more detailed configuration of the optical material holding jig according to the third embodiment of the present invention.
[0050]
As shown in FIG. 5, the optical material holding jig 1 </ b> C according to the third embodiment of the present invention is a holding surface 83 </ b> C (in FIG. 5) of a jig body 81 </ b> C having a substantially disk shape and an outer peripheral portion hanging downward. An optical material abutting member 12C is installed in the vicinity of the lower surface of the hanging part on the outer periphery of the disk, and the held surface S24 of the optical material M4 is held by the horizontal portion 12C1 of the optical material abutting member 12C. ing. In this case, the optical material M4 has a polished surface S14 (lower surface in FIG. 5) having a spherical surface (convex surface) and a held surface S24 (upper surface in FIG. 5) opposite to the polished surface S14. It is an optical material that is (concave). Since the configuration and operation of the other components are the same as in the case of the conventional example shown in FIG.
[0051]
Although not shown, the optical material abutting member 12C is disposed substantially radially in the vicinity of the holding surface 83C (the lower surface in FIG. 5) of the jig body 81C.
[0052]
The optical material contact member 12C is formed in a sheet shape. The thickness is, for example, about 0.1 millimeters to 3 millimeters. Further, the first surface 21C, which is one surface of the sheet, is produced so as to have non-adhesiveness and a friction coefficient equal to or greater than a predetermined value. An adhesive material 23C is applied to the second surface 22C which is the other surface of the sheet. Therefore, the second surface 22C is attached in close contact with the surface in the vicinity of the holding surface 83C (the lower surface in FIG. 5) of the jig body 81C.
[0053]
As the material of the optical material contact member 12C described above, the same material as that of the optical material contact member 12A of the first embodiment is used. Further, as the material of the adhesive material 23C, the same material as the material of the adhesive material 23A of the first embodiment is used.
[0054]
Further, as the optical material abutting member 12C described above, a member pasted on the surface in the vicinity of the holding surface 83C (the lower surface in FIG. 5) of the jig main body 81C after applying the adhesive material 23C can be used. In addition, the adhesive material 23C is applied in advance, and a peelable adhesion preventing member (such as a paper-like member coated with a release agent, not shown) is pasted on the surface of the applied adhesive material 23C in advance. Wearable ones can also be used. Further, as such an optical material abutting member 12C, in addition to a member formed in a predetermined shape, a member formed in a sheet shape and configured to have various shapes or dimensions by cutting is used. Is possible.
[0055]
Next, the operation of the above-described optical material holding jig 1C according to the third embodiment of the present invention will be described.
[0056]
The first surface 21C of the optical material contact member 12C has a friction coefficient equal to or greater than a predetermined value. For this reason, at the time of polishing, as in the case of the above-described conventional example (see FIG. 7), the optical material holding jig 1C securely holds the held surface S24 of the optical material M4. The material holding jig 1C rotates while swinging integrally, and the polished surface S14 of the optical material M4 is polished so as to be substantially the same as the shape of the polishing surface 71 (see FIGS. 1 and 7). Is done. Further, the first surface 21C of the optical material contact member 12C has non-adhesiveness. For this reason, when the driving member 92 (see FIGS. 1 and 7) is moved upward after polishing, the optical material holding jig 1C can be easily removed simply by lifting it upward from the optical material M4. Can do.
[0057]
Therefore, it can be used for polishing optical materials of other shapes or dimensions, and is versatile.
[0058]
In the third embodiment described above, the drive member 92 and the fitting portion 91 (see FIGS. 1 and 7) correspond to drive means in the claims. Further, the fitting recess 84C formed in the upper part of the jig body 81C corresponds to the driving means connecting portion in the claims. Further, the vicinity of the holding surface 83C (the lower surface in FIG. 5) of the jig body 81C corresponds to the holding portion in the claims. Further, the first surface 21C of the optical material contact member 12C corresponds to the held surface contact portion in the claims. The adhesive material 23C corresponds to the sticking substance in the claims.
[0059]
(4) Fourth embodiment
The present invention can be realized by other configurations. FIG. 6 is a diagram showing a more detailed configuration of the optical material holding jig according to the fourth embodiment of the present invention.
[0060]
As shown in FIG. 6, an optical material holding jig 1D according to a fourth embodiment of the present invention is an outer edge portion of a drooping bottom surface 83D of a jig body 81D having a substantially disk shape and an outer peripheral portion hanging downward. An optical material abutting member 12D is installed in the vicinity, and the held surface S25 of the optical material M5 is held by a holding portion 12D1 which is an edge portion of the optical material abutting member 12D. The optical material M5 in this case is an optical material in which the held surface S25 (upper surface in FIG. 6) is a spherical surface (convex surface). Since the configuration and operation of the other components are the same as in the case of the conventional example shown in FIG.
[0061]
Although not shown, the optical material abutting member 12D is installed substantially radially in the vicinity of the holding portion 83D1 (near the acute angle vertex in FIG. 6) which is the outer edge portion of the hanging bottom surface 83D of the jig body 81D. ing.
[0062]
The optical material contact member 12D is formed in a sheet shape. The thickness is, for example, about 0.1 millimeters to 3 millimeters. The first surface 21D, which is one surface of the sheet, is made so as to have non-adhesiveness and a friction coefficient equal to or greater than a predetermined value. An adhesive material 23D is applied to the second surface 22D which is the other surface of the sheet. For this reason, the second surface 22D is attached in close contact with the surface in the vicinity of the outer edge portion of the holding portion 83D1 of the jig main body 81D.
[0063]
As the material of the optical material contact member 12D described above, the same material as that of the optical material contact member 12A of the first embodiment is used. Further, as the material of the adhesive material 23D, the same material as that of the adhesive material 23A of the first embodiment is used.
[0064]
Further, as the above-described optical material contact member 12D, a member pasted on the surface in the vicinity of the outer edge portion of the holding portion 83D1 of the jig body 81D after applying the adhesive material 23D can be used. In addition, the adhesive material 23D is applied in advance, and a peelable adhesion preventing member (such as a paper-like member coated with a release agent, not shown) is pasted on the surface of the applied adhesive material 23D in advance. Wearable ones can also be used. Further, as such an optical material abutting member 12D, in addition to a member formed in a predetermined shape, a member formed into a sheet shape and configured to have various shapes or dimensions by cutting is used. Is possible.
[0065]
Next, the operation of the optical material holding jig 1D according to the fourth embodiment of the present invention will be described.
[0066]
The first surface 21D of the optical material contact member 12D has a friction coefficient equal to or greater than a predetermined value. For this reason, at the time of polishing, the optical material holding jig 1D securely holds the held surface S25 of the optical material M5 in exactly the same manner as in the above-described conventional example (see FIG. 7). The material holding jig 1D rotates while swinging integrally, and the polished surface S14 of the optical material M5 is polished so as to be substantially the same as the shape of the polishing surface 71 (see FIGS. 1 and 7). Is done. Further, the first surface 21D of the optical material contact member 12D has non-adhesiveness. For this reason, when the driving member 92 (see FIGS. 1 and 7) is moved upward after polishing, the optical material holding jig 1D can be easily removed simply by lifting it upward from the optical material M5. Can do.
[0067]
Therefore, it can be used for polishing optical materials of other shapes or dimensions, and is versatile.
[0068]
In the fourth embodiment described above, the drive member 92 and the fitting portion 91 (not shown; see FIGS. 1 and 7) correspond to drive means in the claims. Moreover, the fitting recessed part (not shown) formed in the upper part of jig | tool main body 81D is corresponded to the drive means connection part in a claim. Further, the vicinity of the holding portion 83D1 of the jig body 81D corresponds to the holding portion in the claims. Further, the first surface 21D of the optical material contact member 12D corresponds to the held surface contact portion in the claims. Further, the adhesive material 23D corresponds to the sticking substance in the claims.
[0069]
The present invention is not limited to the above embodiments. Each of the embodiments described above is an exemplification, and any configuration that has substantially the same configuration as the technical idea described in the claims of the present invention and has the same operational effects can be used. It is included in the technical scope of the present invention.
[0070]
For example, in each of the above-described embodiments, the artificial leather has been described as an example of the material of the optical material contact member, but the present invention is not limited to this, and an optical material contact member of another material is used. May be. For example, the material of the optical material contact member is made of a metal material (including an alloy or a metal composite material) or a synthetic resin material (including a composite material containing a synthetic resin material as a base material). (Or first surface) on the side that has a plurality of irregularities, a plurality of corrugations, rubber-based materials (including natural rubber, synthetic rubber, and composite materials based on these) Can also be used. In short, the optical material abutting member is such that the held surface abutting portion having non-adhesiveness can abut on the held surface, and the held surface abutting portion has a friction coefficient greater than a predetermined value. Any member may be used as long as it is installed in a film shape or a layer shape on the surface of an appropriate portion of the holding portion of the jig body.
[0071]
Further, in each of the above embodiments, the pressure-sensitive adhesive, the known adhesive, and the like have been described as examples of the material of the sticking substance, but the present invention is not limited to this, and other materials may be used. An adhesive substance may be used. In short, the sticking substance may be any substance as long as it has adhesiveness or adhesiveness.
[0072]
Further, the installation location of the optical material abutting member may also be a location other than the above, and the horizontal portion at the corner of the outer edge portion of the holding surface (eg, 83A) of the jig main body (eg, 81A). A part other than the part including both of the vertical parts, for example, the vertical part of the outer edge part of the holding surface (for example, 83A) of the jig body (for example, 81A) may not be included, and may be installed only in the horizontal part. In short, the location where the optical material abutting member is installed may be any location as long as it is the surface of an appropriate location of the holding portion of the jig body.
[0073]
In addition, the optical material abutting member initially has adhesiveness or adhesiveness in a fluid state, and after being applied to the surface of an appropriate portion of the holding part of the jig body, it is cured after a predetermined time and is not tacky. And a frictional resistance having a coefficient of friction equal to or greater than a predetermined value may be configured to constitute the held surface contact portion. For example, a synthetic resin material or a rubber material dissolved in an organic solvent can be used.
[0074]
Further, the length L shown in FIG. 2A may be longer or shorter than that shown in the figure. Also, the number of optical material contact members is arbitrary. Further, the optical material contact member may have a shape that covers the vicinity of the outer edge of the holding portion (for example, the lower surface) of the jig body in an annular shape. However, when coated in an annular shape, the space between the optical material and the optical material holding jig is sealed, and the internal air expands due to heat generated by friction during polishing, so that the optical material and the optical material holding jig are expanded. The force will work in the direction of separating them. For this reason, as in the first embodiment shown in FIG. 2A, when the optical material abutting members are arranged at a distance from each other, the air expanded by heat is transferred between the optical material abutting members. It is possible to escape from the gap, and a better effect is obtained.
[0075]
In addition, the optical material in the present invention is not limited to a substantially disc shape, and may have another shape. For example, it may be one used as a cylindrical lens or a cylindrical mirror (one surface is a cylindrical surface measurement). The cylindrical side surface may be a convex surface or a concave surface.
[0076]
【The invention's effect】
  As described above, according to the optical material holding jig and the optical material polishing method according to the present invention,Optical material holding jigs (1A to M1) for holding the optical materials (M1 to M5) when the polished surfaces (S11 to S15) of the optical materials (M1 to M5) are polished by the moving polishing surface (71). 1D), and in the optical material holding jigs (1A to 1D), the held surface (S21 to S15) which is the surface opposite to the polished surface (S11 to S15) of the optical material (M1 to M5). S25) is a portion facing the holding portion (the outer edge portion of the holding surface 83A, the outer edge portion of the jig bottom surface 83B, the holding surface 83C, or the holding portion 83D1), and the surfaces to be polished (S11 to S15) are polished surfaces. Jig body (81A-81D) having driving means connecting portions (84A-84C) connectable to the fitting portion (91) at the tip of the driving member (92) that is driven to slide while being in close contact with (71). ) Holding portion (outer edge portion of holding surface 83A, Synthetic leather in which the outer edge portion of the base 83B, the holding surface 83C, or the holding portion 83D1) is integrated with a surface layer made of a synthetic resin material and imitating a skin on one surface of a base material including a woven fabric, a nonwoven fabric, or a knitted fabric. Or an artificial leather having a surface layer in which fine pores are formed by coating a synthetic resin material on a fiber layer in which fiber members are irregularly and three-dimensionally entangled, or a fiber layer and a surface layer. From artificial leather with a three-layer structure with woven or non-woven fabric or knitted fabric sandwiched between them, or artificial leather in which a surface layer is fluffed to form a suede or back skin and a large number of short, small-diameter hair members are formed on the surface The first surface (21A to 21D) which is a non-adhesive surface and the second surface (22A to 22D) which is the surface opposite to the first surface (21A to 21D) Formed optical material contact member ( 2A to 12D) are configured to be attached so that the second surfaces (22A to 22D) are in close contact with each other. Therefore, when the optical material (M1 to M5) is polished, the first surface (21A to 21D) having non-adhesiveness is used. ) Is brought into contact with the held surfaces (S21 to S25) of the optical material (M1 to M5), so that the optical material (M1 to M5) can be held, and after the polishing is finished, the drive member (92) is moved upward. It can be removed simply by liftingIt has the advantage that Therefore, it can also be used for polishing optical materials of other shapes or dimensions, and has the advantage of being versatile.
[Brief description of the drawings]
FIG. 1 is a diagram for explaining a method of a smoothing process or a polishing process of an optical material using an optical material holding jig according to a first embodiment of the present invention.
FIG. 2 is a diagram showing a more detailed configuration of the optical material holding jig according to the first embodiment of the present invention.
FIG. 3 is a diagram for explaining another method of a smoothing process or a polishing process of an optical material using the optical material holding jig according to the first embodiment of the present invention.
FIG. 4 is a view showing a more detailed configuration of an optical material holding jig according to a second embodiment of the present invention.
FIG. 5 is a diagram showing a more detailed configuration of an optical material holding jig according to a third embodiment of the present invention.
FIG. 6 is a view showing a more detailed configuration of an optical material holding jig according to a fourth embodiment of the present invention.
FIG. 7 is a diagram for explaining an example of a conventional method of a smoothing process or a polishing process of an optical material.
[Explanation of symbols]
1A-1D Optical material holding jig
12A Optical material contact member
12A1 Horizontal part
12B Optical material contact member
12B1 Edge part
12C Optical material contact member
12C1 horizontal section
12D optical material contact member
12D1 edge
21A-21D 1st surface
22A-22D 2nd surface
23A-23D Adhesive
70 Polishing dish
71 Polished surface
72 Rotating shaft
80 Optical material holding jig
81A-81D Jig body
83A Holding surface
83B Jig bottom
83B1 holder
83C Holding surface
83D Bottom bottom
83D1 holder
84A-84C Fitting recess
85A-85D outer surface
86C-86D inside surface
90 Drive unit
91 Fitting part
92 Drive member
M1-M5 optical material
P pitch
S11 to S15 Surface to be polished
S21 to S25 Surface to be held
V1 gap

Claims (6)

光学素材（Ｍ１〜Ｍ５）の被研磨面（Ｓ１１〜Ｓ１５）を、移動する研磨面（７１）によって研磨する際に、前記光学素材（Ｍ１〜Ｍ５）を保持する光学素材保持用治具（１Ａ〜１Ｄ）であって、
前記光学素材（Ｍ１〜Ｍ５）の前記被研磨面（Ｓ１１〜Ｓ１５）とは逆側の面である被保持面（Ｓ２１〜Ｓ２５）に対向する部分である保持部（保持面８３Ａの外縁部、治具底面８３Ｂの外縁部、保持面８３Ｃ、又は保持部８３Ｄ１）を有するとともに、前記被研磨面（Ｓ１１〜Ｓ１５）を前記研磨面（７１）に密接させつつ摺動させるように駆動する駆動部材（９２）の先端の嵌合部（９１）と接続可能な駆動手段接続部（８４Ａ〜８４Ｃ）を有する治具本体（８１Ａ〜８１Ｄ）の前記保持部（保持面８３Ａの外縁部、治具底面８３Ｂの外縁部、保持面８３Ｃ、又は保持部８３Ｄ１）に、
織布又は不織布若しくは編布を含む基材の一面に合成樹脂材料からなり皮を模擬した表面層を一体化させた合成皮革、又は繊維部材を不規則かつ三次元立体的にからみ合わせた繊維層の上に合成樹脂材料をコーティングして微細な小孔を形成させた表面層を有する人工皮革、又は前記繊維層と前記表面層の間に織布又は不織布若しくは編布を挟み込んだ３層構造の人工皮革、若しくは前記表面層を毛羽立ててスエード状又は裏皮状にし表面に多数の短く小径の毛状部材が形成された人工皮革からなり非粘着性を有する表面である第１面（２１Ａ〜２１Ｄ）と、前記第１面（２１Ａ〜２１Ｄ）とは逆側の表面である第２面（２２Ａ〜２２Ｄ）を有し、シート状に形成された光学素材当接部材（１２Ａ〜１２Ｄ）を、前記第２面（２２Ａ〜２２Ｄ）が密接するようにして取り付け、
前記光学素材（Ｍ１〜Ｍ５）の研磨時には、前記非粘着性を有する第１面（２１Ａ〜２１Ｄ）を、前記光学素材（Ｍ１〜Ｍ５）の前記被保持面（Ｓ２１〜Ｓ２５）に当接させることにより前記光学素材（Ｍ１〜Ｍ５）を保持可能とし、研磨終了後は、前記駆動部材（９２）を上方に移動させるだけで取り外し可能としたことを特徴とする光学素材保持用治具。Optical material holding jig (1A) for holding the optical materials (M1 to M5) when the polished surfaces (S11 to S15) of the optical materials (M1 to M5) are polished by the moving polishing surface (71). ~ 1D),
A holding portion (an outer edge portion of the holding surface 83A, which is a portion facing a holding surface (S21 to S25) that is a surface opposite to the polished surface (S11 to S15) of the optical material (M1 to M5). A driving member that has an outer edge portion of the jig bottom surface 83B, a holding surface 83C, or a holding portion 83D1) and that drives the surface to be polished (S11 to S15) to slide while being in close contact with the polishing surface (71). (92) The holding portion (the outer edge portion of the holding surface 83A, the jig bottom surface) of the jig main body (81A to 81D) having the drive means connecting portions (84A to 84C) connectable to the fitting portion (91) at the tip of the tip. 83B on the outer edge, holding surface 83C, or holding portion 83D1)
Synthetic leather in which a surface layer simulating a leather made of a synthetic resin material is integrated on one side of a base material including a woven fabric, a nonwoven fabric or a knitted fabric, or a fiber layer in which fiber members are irregularly and three-dimensionally entangled Artificial leather having a surface layer in which fine resin pores are formed by coating a synthetic resin material thereon, or a three-layer structure in which a woven fabric, a nonwoven fabric or a knitted fabric is sandwiched between the fiber layer and the surface layer First surface (21A to 21A) which is made of artificial leather or non-adhesive surface made of artificial leather in which the surface layer is fluffed to form a suede or back skin and a large number of short, small-diameter hair members are formed on the surface. 21D) and optical material abutting members (12A to 12D) having a second surface (22A to 22D) which is a surface opposite to the first surface (21A to 21D) and formed in a sheet shape. , Said second surface (22A-22D There is attached so as to close,
At the time of polishing the optical material (M1 to M5), the non-adhesive first surfaces (21A to 21D) are brought into contact with the held surfaces (S21 to S25) of the optical material (M1 to M5). Thus, the optical material (M1 to M5) can be held, and after polishing is completed , the optical material holding jig can be removed by simply moving the drive member (92) upward . 請求項１記載の光学素材保持用治具において、
前記光学素材当接部材（１２Ａ〜１２Ｄ）は、複数個が、その平面的配置が略放射状となるようにして、前記保持部（保持面８３Ａの外縁部、治具底面８３Ｂの外縁部、保持面８３Ｃ、又は保持部８３Ｄ１）に取り付けられること
を特徴とする光学素材保持用治具。In the optical material holding jig according to claim 1,
A plurality of the optical material abutting members (12 </ b> A to 12 </ b> D) are arranged so that the planar arrangement thereof is substantially radial, and the holding portion (the outer edge portion of the holding surface 83 </ b> A, the outer edge portion of the jig bottom surface 83 </ b> B, the holding portion). surface 83C, or jig for optical material held, characterized in Rukoto attached to the holding portion 83D1). 請求項１記載の光学素材保持用治具において、
前記光学素材当接部材（１２Ａ〜１２Ｄ）の前記第２面（２２Ａ〜２２Ｄ）には接着剤が塗布され、前記保持部（保持面８３Ａの外縁部、治具底面８３Ｂの外縁部、保持面８３Ｃ、又は保持部８３Ｄ１）に取り付けられること
を特徴とする光学素材保持用治具。In the optical material holding jig according to claim 1,
Adhesive is applied to the second surfaces (22A to 22D) of the optical material contact members (12A to 12D), and the holding portions (the outer edge portion of the holding surface 83A, the outer edge portion of the jig bottom surface 83B, and the holding surface) are applied. 83C, or jig for optical material held, characterized in Rukoto attached to the holding portion 83D1). 光学素材（Ｍ１〜Ｍ５）の被研磨面（Ｓ１１〜Ｓ１５）を、移動する研磨面（７１）によって研磨する光学素材研磨方法であって、前記研磨の際に、前記光学素材（Ｍ１〜Ｍ５）を保持する光学素材保持用治具（１Ａ〜１Ｄ）を用い、前記光学素材保持用治具（１Ａ〜１Ｄ）においては、
前記光学素材（Ｍ１〜Ｍ５）の前記被研磨面（Ｓ１１〜Ｓ１５）とは逆側の面である被保持面（Ｓ２１〜Ｓ２５）に対向する部分である保持部（保持面８３Ａの外縁部、治具底面８３Ｂの外縁部、保持面８３Ｃ、又は保持部８３Ｄ１）を有するとともに、前記被研磨面（Ｓ１１〜Ｓ１５）を前記研磨面（７１）に密接させつつ摺動させるように駆動する駆動部材（９２）の先端の嵌合部（９１）と接続可能な駆動手段接続部（８４Ａ〜８４Ｃ）を有する治具本体（８１Ａ〜８１Ｄ）の前記保持部（保持面８３Ａの外縁部、治具底面８３Ｂの外縁部、保持面８３Ｃ、又は保持部８３Ｄ１）に、
織布又は不織布若しくは編布を含む基材の一面に合成樹脂材料からなり皮を模擬した表面層を一体化させた合成皮革、又は繊維部材を不規則かつ三次元立体的にからみ合わせた繊維層の上に合成樹脂材料をコーティングして微細な小孔を形成させた表面層を有する人工皮革、又は前記繊維層と前記表面層の間に織布又は不織布若しくは編布を挟み込んだ３ 層構造の人工皮革、若しくは前記表面層を毛羽立ててスエード状又は裏皮状にし表面に多数の短く小径の毛状部材が形成された人工皮革からなり非粘着性を有する表面である第１面（２１Ａ〜２１Ｄ）と、前記第１面（２１Ａ〜２１Ｄ）とは逆側の表面である第２面（２２Ａ〜２２Ｄ）を有し、シート状に形成された光学素材当接部材（１２Ａ〜１２Ｄ）を、前記第２面（２２Ａ〜２２Ｄ）が密接するようにして取り付け、
前記光学素材（Ｍ１〜Ｍ５）の研磨時には、前記非粘着性を有する第１面（２１Ａ〜２１Ｄ）を、前記光学素材（Ｍ１〜Ｍ５）の前記被保持面（Ｓ２１〜Ｓ２５）に当接させることにより前記光学素材（Ｍ１〜Ｍ５）を保持可能とし、研磨終了後は、前記駆動部材（９２）を上方へ持ち上げるだけで取り外し可能としたことを特徴とする光学素材研磨方法。 An optical material polishing method for polishing a polished surface (S11 to S15) of an optical material (M1 to M5) with a moving polishing surface (71), and in the polishing, the optical material (M1 to M5) In the optical material holding jig (1A to 1D) using the optical material holding jig (1A to 1D) for holding
A holding portion (an outer edge portion of the holding surface 83A, which is a portion facing a holding surface (S21 to S25) that is a surface opposite to the polished surface (S11 to S15) of the optical material (M1 to M5). A driving member that has an outer edge portion of the jig bottom surface 83B, a holding surface 83C, or a holding portion 83D1) and that drives the surface to be polished (S11 to S15) to slide while being in close contact with the polishing surface (71). (92) The holding portion (the outer edge portion of the holding surface 83A, the jig bottom surface) of the jig main body (81A to 81D) having the drive means connecting portions (84A to 84C) connectable to the fitting portion (91) at the tip of the tip. 83B on the outer edge, holding surface 83C, or holding portion 83D1)
Synthetic leather in which a surface layer simulating a leather made of a synthetic resin material is integrated on one side of a base material including a woven fabric, a nonwoven fabric or a knitted fabric, or a fiber layer in which fiber members are irregularly and three-dimensionally entangled Artificial leather having a surface layer in which fine resin pores are formed by coating a synthetic resin material thereon, or a three- layer structure in which a woven fabric, a nonwoven fabric or a knitted fabric is sandwiched between the fiber layer and the surface layer First surface (21A to 21A) which is made of artificial leather or non-adhesive surface made of artificial leather in which the surface layer is fluffed to form a suede or back skin and a large number of short, small-diameter hair members are formed on the surface. 21D) and optical material abutting members (12A to 12D) having a second surface (22A to 22D) which is a surface opposite to the first surface (21A to 21D) and formed in a sheet shape. , Said second surface (22A-22D There is attached so as to close,
At the time of polishing the optical material (M1 to M5), the non-adhesive first surfaces (21A to 21D) are brought into contact with the held surfaces (S21 to S25) of the optical material (M1 to M5). Thus, the optical material (M1 to M5) can be held, and after the polishing is finished, the optical member (92) can be removed simply by lifting it upward . 請求項４記載の光学素材研磨方法において、
前記光学素材当接部材（１２Ａ〜１２Ｄ）は、複数個が、その平面的配置が略放射状となるようにして、前記保持部（保持面８３Ａの外縁部、治具底面８３Ｂの外縁部、保持面８３Ｃ、又は保持部８３Ｄ１）に取り付けられること
を特徴とする光学素材研磨方法。 The optical material polishing method according to claim 4,
A plurality of the optical material abutting members (12 </ b> A to 12 </ b> D) are arranged so that the planar arrangement thereof is substantially radial, and the holding portion (the outer edge portion of the holding surface 83 </ b> A, the outer edge portion of the jig bottom surface 83 </ b> B, the holding portion). It is attached to the surface 83C or the holding part 83D1)
An optical material polishing method characterized by the above . 請求項４記載の光学素材研磨方法において、
前記光学素材当接部材（１２Ａ〜１２Ｄ）の前記第２面（２２Ａ〜２２Ｄ）には接着剤が塗布され、前記保持部（保持面８３Ａの外縁部、治具底面８３Ｂの外縁部、保持面８３Ｃ、又は保持部８３Ｄ１）に取り付けられること
を特徴とする光学素材研磨方法。 The optical material polishing method according to claim 4,
Adhesive is applied to the second surfaces (22A to 22D) of the optical material contact members (12A to 12D), and the holding portions (the outer edge portion of the holding surface 83A, the outer edge portion of the jig bottom surface 83B, and the holding surface) are applied. 83C, or attached to the holding portion 83D1) optical materials polishing method comprising Rukoto.
JP2002091430A 2002-03-28 2002-03-28 Optical material holding jig and optical material polishing method Expired - Fee Related JP3715937B2 (en)

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