JP6553620B2 - 光学デバイス - Google Patents
光学デバイス Download PDFInfo
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- JP6553620B2 JP6553620B2 JP2016542234A JP2016542234A JP6553620B2 JP 6553620 B2 JP6553620 B2 JP 6553620B2 JP 2016542234 A JP2016542234 A JP 2016542234A JP 2016542234 A JP2016542234 A JP 2016542234A JP 6553620 B2 JP6553620 B2 JP 6553620B2
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2403—Layers; Shape, structure or physical properties thereof
- G11B7/24035—Recording layers
- G11B7/24038—Multiple laminated recording layers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
- G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2403—Layers; Shape, structure or physical properties thereof
- G11B7/24056—Light transmission layers lying on the light entrance side and being thinner than the substrate, e.g. specially adapted for Blu-ray® discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2403—Layers; Shape, structure or physical properties thereof
- G11B7/24062—Reflective layers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
Description
ここでの任意の実施形態に係る光学デバイスは、セキュリティマークとして用いることができ、例えば物品、包装、IDバッジ/パス、銀行/クレジットカード等に適用することができる。パターンは、異なる領域の結晶学的状態を設定することによって、相変化材料層(又は複数層)内に記憶することができる。パターンは、単に認識可能な画像であってもよいし、例えばバーコード、QRコード(登録商標)又は他の適切なコードの形態等で特定の情報を符号化していてもよい。パターンは、複製することが困難な光学デバイスに固有の所定の色変化又はスペクトル応答に依存し得るので、本質的ではない。
Claims (14)
- 光学デバイスであって、
認識可能な画像を含むパターンを提供するように前記デバイスの反射率を変更する固体状の材料(10)の層と、
リフレクタ(12)と、を備え、
前記材料(10)は、少なくとも2つの安定した値の間で切り替え可能な屈折率を有する相変化材料であって、前記パターンは、前記材料(10)の層内の異なる領域の屈折率を、前記異なる領域における相変化材料の切り替えによって設定することで定められ、
前記リフレクタ(12)は、前記リフレクタ(12)とアクセス面18との間に他のリフレクタが配置されることなく、背面リフレクタとして機能するように構成されているとともに、光を透過する固体スペーサ層(14)によって前記材料(10)の層から隔てられており、
前記アクセス面18は、前記光学デバイスが前記認識可能な画像を提供すべく、光が前記アクセス面18を通って入射し、前記アクセス面18を通って出て行くように構成されており、
前記固体スペーサ層(14)は前記リフレクタ(12)と前記アクセス面(18)との間に配置されており、
前記材料(10)の層の厚さが20nm未満であること、及び/又は前記リフレクタ(12)と前記材料(10)の層との距離間隔が前記スペーサ層(14)の厚さに等しく、かつ前記スペーサ層の厚さが10nm〜250nmの範囲内であることを特徴とする、光学デバイス。 - 前記材料(10)の屈折率は、電気的に、熱的に又は印加された光によって切り替え可能である、請求項1に記載の光学デバイス。
- 前記材料(10)の屈折率は、少なくとも2つの安定した値の間で可逆的に切り替え可能である、請求項1又は2に記載の光学デバイス。
- 前記光学デバイスの一部の反射率は、当該部分における前記材料(10)の層の屈折率を切り替えることによって、少なくとも3つの異なる値の何れかに設定可能である、請求項1〜3の何れかに記載の光学デバイス。
- 前記材料(10)は、GeSbTe、VOx、NbOx、GeTe、GeSb、GaSb、AgInSbTe、InSb、InSbTe、InSe、SbTe、TeGeSbS、AgSbSe、SbSe、GeSbMnSn、AgSbTe、AuSbTe及びAlSbの組み合わせのリストから選択される元素の組み合わせに係る化合物又は合金を備え、任意に、前記リストからの元素の組み合わせに係る複数の化合物又は複数の合金の混合物、及び/又は、C又はN等の少なくとも1つのドーパントを更に備える、請求項1〜4の何れかに記載の光学デバイス。
- 前記材料(10)はGe2Sb2Te5を備える、請求項1〜5の何れかに記載の光学デバイス。
- 前記材料(10)の層は光吸収体層である、請求項1〜6の何れかに記載の光学デバイス。
- 前記スペーサ層(14)は圧縮可能材料、好ましくはエラストマ材料を備える、請求項1〜7の何れかに記載の光学デバイス。
- 複数の対の層を備え、前記複数の対の層の各々は、前記光学デバイスの反射率を変更する固体状の材料(10)の層と、スペーサ層(14)と、を備え、前記複数の対の層は、スタック状に連続して配列されている、請求項1〜8の何れかに記載の光学デバイス。
- 前記材料(10)に電流を流すように構成された集積化電極を更に備える、請求項1に記載の光学デバイス。
- 前記集積化電極は画素化されている、請求項10に記載の光学デバイス。
- 前記材料(10)の層上に位置するキャッピング層(16)を更に備える、請求項1に記載の光学デバイス。
- 前記スペーサ層(14)及び前記キャッピング層(16)は、インジウムスズ酸化物で形成されている、請求項12に記載の光学デバイス。
- 請求項1〜13の何れかに記載の光学デバイスを備える、セキュリティマーク又は装飾品。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB201322912A GB201322912D0 (en) | 2013-12-23 | 2013-12-23 | Optical storage |
GB1322912.5 | 2013-12-23 | ||
GB1417976.6 | 2014-10-10 | ||
GB201417976A GB201417976D0 (en) | 2014-10-10 | 2014-10-10 | Optical device |
PCT/GB2014/053826 WO2015097469A2 (en) | 2013-12-23 | 2014-12-22 | Optical device |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2017504142A JP2017504142A (ja) | 2017-02-02 |
JP2017504142A5 JP2017504142A5 (ja) | 2018-02-01 |
JP6553620B2 true JP6553620B2 (ja) | 2019-07-31 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2016542234A Active JP6553620B2 (ja) | 2013-12-23 | 2014-12-22 | 光学デバイス |
Country Status (7)
Country | Link |
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US (1) | US10068606B2 (ja) |
EP (1) | EP3087562B1 (ja) |
JP (1) | JP6553620B2 (ja) |
KR (1) | KR102264555B1 (ja) |
CN (1) | CN105849807B (ja) |
ES (1) | ES2654688T3 (ja) |
WO (1) | WO2015097469A2 (ja) |
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2014
- 2014-12-22 WO PCT/GB2014/053826 patent/WO2015097469A2/en active Application Filing
- 2014-12-22 CN CN201480070774.XA patent/CN105849807B/zh active Active
- 2014-12-22 JP JP2016542234A patent/JP6553620B2/ja active Active
- 2014-12-22 US US15/107,191 patent/US10068606B2/en active Active
- 2014-12-22 EP EP14815856.1A patent/EP3087562B1/en active Active
- 2014-12-22 ES ES14815856.1T patent/ES2654688T3/es active Active
- 2014-12-22 KR KR1020167020103A patent/KR102264555B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
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EP3087562B1 (en) | 2017-11-08 |
JP2017504142A (ja) | 2017-02-02 |
ES2654688T3 (es) | 2018-02-14 |
WO2015097469A3 (en) | 2015-09-11 |
EP3087562A2 (en) | 2016-11-02 |
CN105849807B (zh) | 2018-10-23 |
KR20160125355A (ko) | 2016-10-31 |
KR102264555B1 (ko) | 2021-06-11 |
WO2015097469A2 (en) | 2015-07-02 |
US20160336036A1 (en) | 2016-11-17 |
CN105849807A (zh) | 2016-08-10 |
US10068606B2 (en) | 2018-09-04 |
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