JP5698297B2 - 基板によって誘導される光学ビーム拡大器 - Google Patents
基板によって誘導される光学ビーム拡大器 Download PDFInfo
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Description
本発明は、基板によって誘導される光学デバイス、特に、共通の光透過性の基板に所有される複数の反射面を含むデバイスに関する。
小型の光学素子に関する重要な用途の一つは、光学モジュールが結像レンズ及びコンバイナーの両方として役立つヘッドマウントディスプレイにあり、二次元の表示は、無限距離へ結像され、観察者の目の中に反射される。その表示を、陰極線管(CRT)若しくは液晶ディスプレイ(LCD)のいずれかから直接に、又はリレーレンズ若しくは光ファイバーバンドルによって間接的に、得ることができる。典型的には、その表示は、コリメーティングレンズによって無限距離に結像されると共にコンバイナーとして作用する部分反射面によって観察者の目の中へ透過する点の配列で構成される。通常、従来の自由空間光学モジュールは、これらの目的のために使用される。しかしながら不幸にも、システムの所望の視野(FOV)を増加させると、光学モジュールは、使用するためにはより重く嵩張ると共に非常に複雑になる。これは、ヘッドマウントの用途における主要な欠点であり、ここでシステムは、できるだけ軽く小型であるべきである。
本発明を、比較的高いFOVをもつシステムにさえも、光学モジュールが非常に小型であると共に使用することが容易であるバイザーディスプレイ用の基板によって誘導される光学素子を設計すると共に製造するために、使用してもよい。加えて、光学のシステムの目の運動の箱は、比較的大きく、従ってバイザーの大きな移動に適応することができる。本発明のシステムは、それが非常に小型であると共に専門の構成を有する光学システム中にさえ容易に組み込まれ得るので、特に有利である。
ここで、本発明を、それがより十分に理解されるように、以下の実例となる図を参照して、ある一定の好適な実施例と関連して記載することにする。
αsurは、反射面及び基板の平面に対する法線の間における角度であり、
Reyeは、観察者の目及び基板の間における距離(典型的には、約30−40mm)であることがわかることは容易である。
付記(1):
光を透過させる基板、
内部反射全体によって前記基板へ光を連結させる光学手段、及び
前記基板に所有される複数の部分反射面を含み、
前記部分反射面は、互いに平行であり、前記基板の任意の縁に対して平行ではないことを特徴とする光学デバイス。
前記光学手段は、前記基板に所有される、波を反射する面である、付記(1)に記載の光学デバイス。
前記複数の部分反射面は、前記基板の外で、内部反射全体によって捕捉された光を連結させる、付記(1)に記載の光学デバイス。
読み出し波から画像波を生成する手段をさらに含み、
前記読み出し波及び前記画像波は、前記基板の同じ側に位置する、付記(2)に記載の光学デバイス。
読み出し波から画像波を生成する手段をさらに含み、
前記読み出し波は、前記基板の一つの側に位置し、前記画像波は、前記基板の別の側に位置する、付記(2)に記載の光学デバイス。
読み出し波から画像波を生成する手段をさらに含み、
前記読み出し波は、前記基板へその縁の一つを通じて連結される、付記(2)に記載の光学デバイス。
前記複数の部分反射面の反射率は、均一な輝度を有する視野を達成するように決定される、付記(1)に記載の光学デバイス。
前記複数の部分反射面の反射率は、予め決められた輝度を有する視野を達成するように決定される、付記(1)に記載の光学デバイス。
前記部分反射面の各々の反射率は、予め決められた輝度を有する視野を達成するように局所的に変動する、付記(1)に記載の光学デバイス。
前記部分反射面の間における距離は、予め決められた輝度を有する視野を達成するように決定される、付記(1)に記載の光学デバイス。
前記基板に所有される第二の複数の部分反射面をさらに含み、
前記第二の複数の部分反射面は、互いに平行であり、前記基板の任意の縁に対して平行でなく、前記第一の複数の部分反射面に対して平行でない、付記(1)に記載の光学デバイス。
前記第二の複数の部分反射面は、内部反射全体によって前記基板で連結される前記光の伝播の方向を変化させる、付記(11)に記載の光学デバイス。
前記第二の複数の部分反射面の反射率は、均一な輝度を有する視野を達成するように決定される、付記(11)に記載の光学デバイス。
前記第二の複数の部分反射面の反射率は、予め決められた輝度を有する視野を達成するように決定される、付記(11)に記載の光学デバイス。
前記基板は、部分的に透明であり、その透視の動作を可能にする、付記(1)に記載の光学デバイス。
外部の光景からの光の入口を遮断する、前記基板の前記面に付けられる不透明な層をさらに含む、付記(1)に記載の光学デバイス。
外部の光景から前記デバイスを通過する光の輝度を制御する、前記基板の前記面に付けられる変動可能な透過率の層をさらに含む、付記(1)に記載の光学デバイス。
前記変動可能な透過率の層の透過率は、前記外部の光景の前記輝度に従って自動的に決定される、付記(17)に記載の光学デバイス。
前記複数の部分反射面は、観察者の一つの目に到達するように計算された方向へ捕捉された波を反射させる、付記(2)に記載の光学デバイス。
前記複数の部分反射面は、観察者の両方の目に到達するように計算された方向へ捕捉された波を反射する、付記(2)に記載の光学デバイス。
前記観察者の目の各々は、全体の視野の一部のみを見ると共に、両方の目は、前記視野全体を一緒に見る、付記(20)に記載の光学デバイス。
前記デバイスは、同じ画像の二つの異なる焦点合わせを組み合わせる、付記(1)に記載の光学デバイス。
前記デバイスは、外部の光景の二つの異なる様相を組み合わせる、付記(1)に記載の光学デバイス。
前記二つの複数の部分反射面は、前記基板から出現する光ビームの横の寸法が、前記基板に入る光ビームのものよりも大きいような方法で、前記基板に埋め込まれる、付記(11)に記載の光学デバイス。
前記二つの複数の部分反射面の反射率は、均一な強度を有する出力波を達成するように設定される、付記(24)に記載の光学デバイス。
前記二つの複数の部分反射面の反射率は、予め決められた強度を有する出力波を達成するように設定される、付記(24)に記載の光学デバイス。
仮想の網膜の表示光源をさらに含む、付記(1)に記載の光学デバイス。
液晶表示(LCD)光源をさらに含み、
前記LCD光源は、所望の画像のフーリエ変換が前記LCDのプレートで生成されるような方法で、動作する、付記(1)に記載の光学デバイス。
光源を構成する発光ダイオードの配列をさらに含む、付記(1)に記載の光学デバイス。
前記光源は、前記基板へその縁を通じて連結される、付記(29)に記載の光学デバイス。
前記基板は、複数のプリズムで構成される、付記(1)に記載の光学デバイス。
前記基板は、射出成形技術によって生成する複数の透明な成形品で構成される、付記(1)に記載の光学デバイス。
前記基板は、複数の平行な透明なプレートで構成される、付記(1)に記載の光学デバイス。
前記部分反射面は、光学コーティング剤で覆われた柔軟な透明なシート部分で構成される、付記(1)に記載の光学デバイス。
前記部分反射面の間に空気間隔をさらに含む、付記(1)に記載の光学デバイス。
前記基板の縁又は面の一部は、反射面を生成する光学コーティング剤で覆われる、付記(1)に記載の光学デバイス。
前記デバイスの光路に挿入される少なくとも一つの半波長板をさらに含む、付記(1)に記載の光学デバイス。
前記複数の部分反射面の反射率は、フレネル反射によってもたらされる、付記(1)に記載の光学デバイス。
前記光を透過させる基板の外部に位置する少なくとも二つの反射面の配列をさらに含む、付記(1)に記載の光学デバイス。
光学システムを形成するように互いに組み合わせられるいくつかの異なる基板をさらに含む、付記(1)に記載の光学デバイス。
前記デバイスは、眼鏡の枠の内部に埋め込まれる、付記(1)に記載の光学デバイス。
前記デバイスは、携帯電話の内部に埋め込まれる、付記(1)に記載の光学デバイス。
Claims (4)
- 光学的なデバイスであって、
少なくとも二つの主要な表面及びエッジを有する光を透過させる基体、
上記の二つの主要な表面が上記の基体の内側において内部全反射によって光線を捕捉すること、
上記の基板の内側において相互に対して平行に位置させられた及び相互に間隔を空けられた並びに上記の主要な表面の間に配された複数の部分的に反射する表面、並びに、
内部全反射によって上記の基体の中へと光線を連結させるための光学的な手段
を具備すると共に、
同じ軸外の角度を有する捕捉された光線は、前記基体の内側において伝播すると共に二つの違う方向から前記反射する表面に到着すると共に、
上記の二つの違う方向の一方における前記光線の一部分は、前記反射する表面から反射させられると共に前記基体から放出されると共に、
上記の二つの違う方向の他方における前記光線は、いずれの実質的な反射も無しに前記反射する表面を通じて透過する、
光学的なデバイス。 - 請求項1に記載の光学的なデバイスにおいて、
上記の方向の他方の入射角は、一方の方向の入射角と比べてより小さいものである、
光学的なデバイス。 - 請求項1に記載の光学的なデバイスにおいて、
上記の部分的に反射する表面の反射率は、上記の二つの方向の他方について無視できるものであると共に上記の二つの方向の一方について顕著なものである、
光学的なデバイス。 - 請求項1に記載の光学的なデバイスにおいて、
前記基体の内側における表面から反射させられた伝播させられた捕捉された光線は、偶数の回数の反射の後に又は奇数の回数の反射の後に前記部分的に反射する表面に到着する、
光学的なデバイス。
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Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL13656200 | 2000-06-05 | ||
IL136562 | 2000-06-05 |
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- 2001-05-16 JP JP2002502517A patent/JP2003536102A/ja active Pending
- 2001-05-16 DK DK01929969.2T patent/DK1295163T3/da active
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Also Published As
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JP2013210633A (ja) | 2013-10-10 |
ES2348532T3 (es) | 2010-12-09 |
CZ20023902A3 (cs) | 2003-05-14 |
PL361735A1 (en) | 2004-10-04 |
KR100839574B1 (ko) | 2008-06-19 |
EP1295163A2 (en) | 2003-03-26 |
DE60142516D1 (de) | 2010-08-19 |
HUP0400526A2 (hu) | 2004-05-28 |
KR20030028479A (ko) | 2003-04-08 |
CA2411442C (en) | 2010-07-13 |
CA2411442A1 (en) | 2001-12-13 |
PL209571B1 (pl) | 2011-09-30 |
CN1440513A (zh) | 2003-09-03 |
US20030165017A1 (en) | 2003-09-04 |
HU227185B1 (en) | 2010-10-28 |
US6829095B2 (en) | 2004-12-07 |
HUP0400526A3 (en) | 2005-07-28 |
CZ302883B6 (cs) | 2012-01-04 |
ATE473464T1 (de) | 2010-07-15 |
AU2001256644B2 (en) | 2005-06-16 |
CN100507636C (zh) | 2009-07-01 |
WO2001095027A2 (en) | 2001-12-13 |
EP1295163B1 (en) | 2010-07-07 |
DK1295163T3 (da) | 2010-10-25 |
WO2001095027A3 (en) | 2002-08-15 |
JP2003536102A (ja) | 2003-12-02 |
AU5664401A (en) | 2001-12-17 |
HK1057613A1 (en) | 2004-04-08 |
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