JP7381023B2 - 低減された厚さを有する必要に応じて転写可能な光学システム - Google Patents
低減された厚さを有する必要に応じて転写可能な光学システム Download PDFInfo
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- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
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- G02B27/4205—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive optical element [DOE] contributing to image formation, e.g. whereby modulation transfer function MTF or optical aberrations are relevant
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Description
図1で最も良く示される第1の例示的実施形態では、本発明のシステムは、支持又はキャリア基板12を更に含む屈折光学システム10である。この実施形態では、合成画像表示システム14が、キャリア基板12の一方の側上に構築される。容易に理解されるように、キャリア基板12はシステムの光学機能に寄与しない。言い換えると、合成画像は、キャリア基板12の存在又は不透明度に関わらず表示される。
(a)集光要素は、約50ミクロン未満(より好ましくは約25ミクロン未満、及び最も好ましくは約5~約15ミクロン)の好ましい幅(円柱状集光要素の場合)及びベース直径(非円柱状集光要素の場合)と、約50ミクロン未満(より好ましくは約25ミクロン未満、及び最も好ましくは約1~約5ミクロン)の好ましい焦点距離と、1以下(より好ましくは0.75以下)の好ましいf値とを有し、
(b)構造化画像アイコンは、全体の深さがそれぞれ好ましくは約50ナノメートル~約8ミクロンの必要に応じてコーティング及び/又は充填された空隙又は窪み、あるいは全体の高さがそれぞれ好ましくは約50ナノメートル~約8ミクロンの隆起領域又は成形柱であり、
(c)キャリア基板は、約10~約50ミクロン、より好ましくは約15~約25ミクロンの範囲の好ましい厚さを有し、
(d)本発明のシステムの全体の厚さは、好ましくは約50ミクロン未満(より好ましくは約45ミクロン未満、及び最も好ましくは約10~約40ミクロン)である。
ここで、「レンズモールド」層は、負レンズ形状を有する複数の空隙を有する硬化性樹脂から形成され、負レンズ形状は、正レンズ形状を有する硬質の表面(すなわち正レンズモールド)に対して樹脂をUV硬化させることによって作られ、
微細構造含有剥離ライナーの「レンズモールド」層上に、転写可能屈折光学システムを形成することであって、
微細構造含有剥離ライナーの「レンズモールド」層を硬質のアイコンモールドに対して配置し、「レンズモールド」層及び硬質のアイコンモールドの両方の複数の空隙を光学機能UV硬化性液晶ポリマー(例えばポリエステルアクリレート)が充填し、ニップローラーを用いて圧力をかけて余分な液晶ポリマーを除外し、同時に、UV硬化性ポリマーが硬化され又は固められてアイコンモールドから持ち上げられることが可能なように液晶ポリマーをUV放射に露光し(当業者によって容易に理解されるように、光学機能ポリマーは、「レンズモールド」層と硬質のアイコンモールドとの間で材料が硬化された後の持ち上げのプロセスを乗り越えて、アイコンモールドから持ち上げられるように、剥離ライナーの「レンズモールド」層への十分な付着性を有さなければならない)、
複数の画像アイコンを、光学機能ポリマーとのコントラストを提供する材料(例えばUV硬化性フレキソ印刷インキ)を用いて充填して、充填された画像アイコン層を必要に応じて形成し、
1つ以上のシーリング層、強化層、着色又は染色層、不透明化層、又はこれらの組み合わせを、充填された画像アイコン層に必要に応じて適用し、
1つ以上の接着剤層(例えば、半硬化した熱活性型接着剤層)を、必要に応じてシーリング、強化、着色/染色、及び/又は不透明化された、充填された画像アイコン層に適用することによって、転写可能屈折光学システムを形成することとを含む。
最も強い接合強度
接着剤層34-紙基板28
「レンズモールド」層26-キャリア基板24
中程度の接合強度
硬化した光学機能ポリマー-正レンズモールド
最も弱い接合強度
硬化した光学機能ポリマー-硬質のアイコンモールド
図3で最も良く示される第3の例示的実施形態では、本発明のシステムは、支持又はキャリア基板38を更に含む凹面反射光学システム36である。この実施形態では、合成画像表示システム40が、キャリア基板38の一方の側上に構築される。
(a)集光要素は、約250ミクロン~約1ミリメートル(mm)の範囲の、及び約50~約250ミクロンの範囲の幅/ベース直径を含む(但しこれに限定されない)、約1~約10mmの範囲の好ましい幅/ベース直径と、約25ミクロン~約5mm(より好ましくは約250ミクロン~約1mm)の範囲の好ましい焦点距離と、約1以下(より好ましくは約0.5以下)の好ましいf値とを有し、
(b)構造化画像アイコンは、全体の深さがそれぞれ好ましくは約5センチメートル(cm)~約1ミクロンの必要に応じてコーティング及び/又は充填された空隙又は窪み、あるいは全体の高さがそれぞれ好ましくは約5cm~約1ミクロンの隆起領域又は成形柱であり、
(c)キャリア基板は、約25ミクロン~約5mm、より好ましくは約250ミクロン~約1mmの範囲の好ましい厚さを有し、
(d)本発明の屈折光学システムの全体の厚さは、好ましくは約1cm以下であり、約250ミクロン~約1cmの範囲、約50~約250ミクロンの範囲、及び約50ミクロン未満の厚さを含む(但しこれらに限定されない)。
硬化性樹脂材料を剥離ライナー(例えば、機能性剥離コーティングを有する滑らかな又は非構造化キャリア基板)の表面に適用し、表面を硬質のアイコンモールドに対して硬化させて、硬化性樹脂材料の表面内に、空隙の形態での画像アイコンの1つ以上の配列を形成し、
硬化性樹脂材料とのコントラストを提供する材料を用いて空隙を充填して、充填された画像アイコン層を形成し、充填された画像アイコン層の表面に硬化性樹脂材料を適用し、負レンズ形状を有する硬質の表面(すなわち負レンズモールド)に対して樹脂を硬化させて、硬化性樹脂材料の表面上に集光要素の1つ以上の配列を形成し、
金属又はその他の反射材料のコンフォーマルコーティングを集光要素に適用して、反射集光要素の1つ以上の配列を形成し、
必要に応じて、1つ以上の保護コーティング層を反射集光要素の1つ以上の配列に適用し、
1つ以上の接着剤層(例えば、半硬化した熱活性型接着剤層)を、反射集光要素の、1つ以上の必要に応じて保護コーティングされた配列に適用することを含む。
第6の例示的実施形態では、本発明のシステムは、必要に応じて転写可能な回折光学システムである。回折集光要素も入射光の集束を提供し、これらの集光要素を使用して作られたシステムは、同程度のf値を有する上述の屈折及び反射システムより薄く、回折光学システムの全体の厚さは約3~約50ミクロン(好ましくは約5~約10ミクロン)の範囲である。
Claims (15)
- 低減された厚さを有する光学システムであって、
凸面反射要素の配列と、
前記凸面反射要素の配列の上に位置する画像アイコンの配列と、
前記凸面反射要素の配列と前記画像アイコンの配列との間の間隙空間を満たす充填層と、
を備え、
前記凸面反射要素の配列の各凸面反射要素は、遠くの光源によって照らされた場合に光点を生じさせるように構成された反射面を備え、
前記画像アイコンの配列の各画像アイコンは、前記光点の視界を少なくとも部分的に遮る材料の領域を備え、
前記充填層は一方の面において前記凸面反射要素の配列に当接するとともに、前記画像アイコンの配列は、前記充填層の他方の面上に位置し、
前記凸面反射要素の配列及び前記画像アイコンの配列は、遮られた光点と遮られていない光点とのパターンを形成するように、協働し、
前記遮られた光点と遮られていない光点とのパターンは、合成画像を形成する、
光学システム。 - 前記画像アイコンの配列の上に位置するキャリア基板を更に備える、請求項1に記載の光学システム。
- 前記凸面反射要素の配列の凸面反射要素は、1より小さいf値を有し、ここで、前記f値は、前記凸面反射要素の焦点距離の、前記凸面反射要素の有効レンズ直径に対する比率である、請求項1に記載の光学システム。
- 前記凸面反射要素の配列の凸面反射要素は、0.25~0.50の間のf値を有する、請求項3に記載の光学システム。
- 前記光点を生じさせるように構成された反射面は、球面である、請求項1に記載の光学システム。
- 前記光点を生じさせるように構成された反射面は、非球面である、請求項1に記載の光学システム。
- 前記画像アイコンの配列の画像アイコンは、構造化画像アイコンを備える、請求項1に記載の光学システム。
- 前記構造化画像アイコンは、第1の材料で形成された実質的に平面的な構造内の第2の材料で充填又はコーティングされた空隙及び実質的に平面的な構造内の隆起領域の少なくとも1つである、請求項7に記載の光学システム。
- 光学システムの製造方法であって、
凸面反射要素の配列を提供することと、
画像アイコンの配列を前記凸面反射要素の配列の上に提供することと、
前記凸面反射要素の配列と前記画像アイコンの配列との間の間隙空間を満たす充填層を設けることと、
を備え、
前記凸面反射要素の配列の各凸面反射要素は、遠くの光源によって照らされた場合に光
点を生じさせるように構成された反射面を備え、
前記画像アイコンの配列の各画像アイコンは、視線方向の光点の視界を少なくとも部分的に遮る材料の領域を備え、
前記充填層は一方の面において前記凸面反射要素の配列に当接するとともに、前記画像アイコンの配列は、前記充填層の他方の面上に位置し、
前記凸面反射要素の配列及び前記画像アイコンの配列は、遮られた及び遮られていない光点のパターンを形成するように、協働し、
前記遮られた及び遮られていない光点のパターンは、合成画像を形成する、
光学システムの製造方法。 - 前記画像アイコンの配列は、キャリア基板の上に形成される、請求項9に記載の光学システムの製造方法。
- 前記画像アイコンの配列は、前記キャリア基板に印刷される、請求項10に記載の光学システムの製造方法。
- 前記凸面反射要素の配列は、前記画像アイコンの配列の上に形成され、
前記凸面反射要素の配列を提供することは、
材料の層を成形することと、
金属で前記材料の層をコーティングすることと、
を備える、請求項9に記載の光学システムの製造方法。 - 前記凸面反射要素の配列の凸面反射要素は、1より小さいf値を有し、ここで、前記f値は、前記凸面反射要素の焦点距離の、前記凸面反射要素の有効レンズ直径に対する比率である請求項9に記載の光学システムの製造方法。
- 前記凸面反射要素の配列の凸面反射要素は、0.25~0.50の間のf値を有する、請求項13に記載の光学システムの製造方法。
- 前記光点を生じさせるように構成された反射面は、球面である、請求項9に記載の光学システムの製造方法。
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CN104024921A (zh) | 2014-09-03 |
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EP2745165B1 (en) | 2017-10-11 |
RU2641316C2 (ru) | 2018-01-17 |
JP2019070826A (ja) | 2019-05-09 |
KR101948363B1 (ko) | 2019-04-22 |
JP2021005092A (ja) | 2021-01-14 |
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ES2902474T3 (es) | 2022-03-28 |
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ES2652034T3 (es) | 2018-01-31 |
US10890692B2 (en) | 2021-01-12 |
EP3244254A3 (en) | 2018-03-07 |
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