JP2011032168A - 反射防止コーティングを備える透明基板 - Google Patents
反射防止コーティングを備える透明基板 Download PDFInfo
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Abstract
【解決手段】 本発明はその面の少なくとも1つに反射防止コーティングAを備える特にガラスからなる透明基板に関する。
本発明によると、反射防止コーティングは屈折率の異なる少なくとも2種の材料から構成され且つその厚みeにおいて連続的に変化する組成をもつ単一薄層から構成される。
【選択図】図1
Description
Fe2O3 0.55〜0.62%
FeO 0.11〜0.16%
CoO 0〜12ppm、特に<12ppmであり、特にFe2+/Fe比は約0.19〜0.25である。
Fe2O3 0.75〜0.90%
FeO 0.15〜0.22%
CoO 0〜17ppm、特に<10ppmであり、特にFe2+/Fe比は約0.20である。
図1はSiOxNy(式中、xとyは厚みにおいて連続的に変化する)をベースとする厚み約250nmの層10をその面の1つに備える“Planilux”型ガラス基板を示す。このxとyの変化は図2の破線の曲線により示すプロフィルを与える。
比較例として、本発明のガラス基板により得られる値即ち特に5%未満の光反射率値RLで得られる値に非常に近い分光光度値が得られるように層の厚みを調整し、スパッタリング堆積技術によりガラス/SiON/Si3N4/SiO2型スタックを作製した。
基板1の外面1を本発明の層10で被覆する。
使用した基板1は薄層を含まない。
基板1及び2はヨーロッパ特許EP−A−0644164の教示による組成をもち、より詳細には下記酸化物を下記重量割合で含有する。
Al2O3 0.6%
CaO 9.50%
MgO 4.10%
Na2O 13.8%
K2O 0.10%
Fe2O3 0.86%
TiO2 0.035%
FeO 0.28%
SO3 0.10%。
本実施例ではコーティングをもたない以外は実施例5で使用したと同一の基板を使用する。
3 内面
4 外面
11 PVBシート
Claims (19)
- その面の少なくとも1つに反射防止コーティングAを備える特にガラスからなる透明基板であって、反射防止コーティングが屈折率の異なる少なくとも2種の材料から形成されており且つその厚みeにおいて連続的に変化する組成をもつ単一薄層から構成されることを特徴とする前記透明基板。
- 薄層が100〜400nmの厚みをもつことを特徴とする請求項1に記載の基板。
- 薄層が屈折率の異なる2種の材料のみから形成されていることを特徴とする請求項1又は2に記載の基板。
- 薄層がSiOxNy(式中、xとyはその厚みにおいて夫々0〜2及び0〜1.33で連続的に変化する)をベースとすることを特徴とする請求項3に記載の基板。
- 空気等の周囲媒体との界面に近接して配置された層のゾーンにおいてxが厳密に0〜2で増加方向に変化し、yが厳密に1.33〜0で減少方向に変化することを特徴とする請求項4に記載の基板。
- 薄層がSizTi1−zO2(式中、zはその厚みにおいて厳密に0〜1で連続的に変化する)をベースとすることを特徴とする請求項3に記載の基板。
- 空気等の周囲媒体との界面に近接して配置された層のゾーンにおいてzが厳密に0〜1で減少方向に変化することを特徴とする請求項6に記載の基板。
- 空気等の周囲媒体との界面から0〜10ナノメートルの距離に配置されたゾーンにおいて薄層の屈折率が1.35〜1.75、有利には1.38〜1.70であることを特徴とする請求項1から7のいずれか一項に記載の基板。
- 反射防止コーティングのない面に銀型の少なくとも1個の金属機能層を含む薄層のスタックを備えることを特徴とする請求項1から8のいずれか一項に記載の基板。
- 日射防止性を与えるように金属機能層の厚みが20〜25ナノメートルであることを特徴とする請求項9に記載の基板。
- 薄層のスタックが、ガラス/Si3N4/ZnO/Ag/Ti/ZnO/Si3N4/ZnO/Ag/Ti/ZnO/Si3N4の配置をもつことを特徴とする請求項9又は10に記載の基板。
- 請求項1から11のいずれか一項に記載の基板を少なくとも1つ含む合わせガラス。
- 少なくとも1枚のポリビニルブチラール(PVB)シートを含む熱可塑性中間層を介して結合された特にガラスからなる2枚の透明基板を含み、反射防止コーティングAをもたない透明基板が好ましくはマグネトロンスパッタリング技術により堆積された反射防止コーティングA’を同様にその面の少なくとも1つに含むことを特徴とする請求項12に記載の合わせガラス。
- 反射防止コーティングA’がガラス/SnO2/SiO2:Al/Nb2O5又はTiO2/SiO2:Alの配置をもつことを特徴とする請求項13に記載の合わせガラス。
- 反射防止コーティングAが面1に配置されており、反射防止コーティングA’が面4に配置されていることを特徴とする請求項13又は14に記載の合わせガラス。
- 自動車フロントガラス又は写真もしくは絵画の保護用ガラスとしての請求項12から15のいずれか一項に記載の合わせガラスの使用。
- 時間tの間に少なくとも2種の前駆物質から高周波又はマイクロ波プラズマCVD技術により堆積される厚みeの少なくとも1個の薄層を含む反射防止コーティングAをその面の少なくとも1つに備える特にガラスからなる透明基板の製造方法であって、時間tの間に少なくとも1個の堆積パラメーターを連続的に変化させることを特徴とする前記方法。
- 時間tの間に変化させる堆積パラメーターが2種の前駆物質の少なくとも一方の流速であることを特徴とする請求項17に記載の方法。
- 特に磁場を利用し、好ましくは反応性のカソードスパッタリング技術により反射防止コーティングAを堆積することを特徴とする請求項1から11のいずれか一項に記載の基板の製造方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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FR9816118A FR2787440B1 (fr) | 1998-12-21 | 1998-12-21 | Substrat transparent comportant un revetement antireflet |
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JP36346799A Division JP4698786B2 (ja) | 1998-12-21 | 1999-12-21 | 反射防止コーティングを備える透明基板 |
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JP2011032168A true JP2011032168A (ja) | 2011-02-17 |
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JP36346799A Expired - Fee Related JP4698786B2 (ja) | 1998-12-21 | 1999-12-21 | 反射防止コーティングを備える透明基板 |
JP2010219173A Pending JP2011032168A (ja) | 1998-12-21 | 2010-09-29 | 反射防止コーティングを備える透明基板 |
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JP36346799A Expired - Fee Related JP4698786B2 (ja) | 1998-12-21 | 1999-12-21 | 反射防止コーティングを備える透明基板 |
Country Status (5)
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US (1) | US6387515B1 (ja) |
EP (1) | EP1013622A1 (ja) |
JP (2) | JP4698786B2 (ja) |
KR (1) | KR100721782B1 (ja) |
FR (1) | FR2787440B1 (ja) |
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Also Published As
Publication number | Publication date |
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JP4698786B2 (ja) | 2011-06-08 |
JP2000211948A (ja) | 2000-08-02 |
EP1013622A1 (fr) | 2000-06-28 |
FR2787440B1 (fr) | 2001-12-07 |
KR100721782B1 (ko) | 2007-05-28 |
KR20000052525A (ko) | 2000-08-25 |
FR2787440A1 (fr) | 2000-06-23 |
US6387515B1 (en) | 2002-05-14 |
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