JP2022009123A - 基材導波光学装置 - Google Patents
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Abstract
【解決手段】光学システムは、少なくとも二つの外部の主要面26、28及び端を有する光伝達基材20、並びに、全内部反射によって基材の中に光波を結合させるための光学素子16、を含む。少なくとも一つの部分反射面22は、基材の外に光波を結合させるために基材内に位置し、光伝達基材の屈折率よりも実質的に低い屈折率を有する少なくとも一つの透明層は、基材の主要面のうちの少なくとも一つに光学的に取り付けられており、インターフェイス平面を規定する。基材の内側に結合された光波は、インターフェイス平面から、基材の主要面と透明層との間で、実質的に全反射される。
【選択図】図3
Description
[外1]
入射してくる光波は、図2に示されるように、光学素子16から反射され、基材内に捕捉される。ところで、コリメートモジュール6は、表示光源4、折り返しプリズム52及び54、偏光ビームスプリッター31、位相差板34及び40、並びに反射光学素子36及び42を含めて、単一の機械的モジュールに統合されてもよく、それは、基材から独立して、かなり緩やかな機械的公差で組み立てられてもよい。加えて、位相差板34及び40、並びに反射光学素子36及び42は、それぞれ、一緒に接合されて、単一の素子を形成してもよい。
a) 実線は、非接合、すなわち、外部の物質が空気であり、その外表面が共通の反射防止(AR)被覆を用いて被覆されているLOEの反射率曲線を表す。図示されているように、臨界角は38.7°であり、その値よりも下では、反射率は急速に低下する。
b) 点線は、1.1の屈折率を有するLIMの基材に接合されており、インターフェイス面は共通のAR被覆を用いて被覆されているLOEの反射率曲線を表示する。ここで、臨界角は43.4°に増大される。LOEの中に結合され得る潜在的なFOVは減少するが、それは、依然として合理的であり、臨界角が41.8°であるBK7で作製された非接合LOEと類似している。
c) 破線は、1.1の屈折率を有するLIMの基材に接合されたLOEの反射率曲線を表す。しかしながら、インターフェイス面は、ここで、特別なASR被覆を用いて被覆されている。43.4°よりも低い入射角度における、インターフェイス面からのLOEの内側の捕捉された光線の反射の光学配置は、もはや全内部反射ではなく、むしろASRからの被覆である。34.7°よりも高い入射角度でインターフェイス面に突き当たる光線の反射率は、99%よりも高く、光線は、インターフェイス面からほとんど全反射される。一つの結果として、このLOEの内側に捕捉され得る潜在的なFOVは、グラフ(a)に示される非接合LOEのそれよりもかなり高い。
Claims (20)
- 光学システムであって、
少なくとも二つの外部の主要面及び端を有する光伝達基材と、
全内部反射によって前記基材の中に光波を結合させるための光学素子と、
前記基材の外に光波を結合させるための、前記基材内に位置する少なくとも一つの部分反射面のアレイと、
前記光伝達基材の前記外部の主要面の一つに取り付けられた光学素子であって、前記光学素子は、低屈折率光学接着剤によって直接取り付けられた、光学素子と、を含み、
前記基材の内側に結合された光波は、前記基材の前記主要面と前記光学素子との間のインターフェイスから実質的に全反射される、光学システム。 - 前記光学接着剤は、1.3の屈折率を有する、請求項1に記載の光学システム。
- 前記光伝達基材は、1.52~1.8の範囲の屈折率を有する材料から作製されている、請求項1に記載の光学システム。
- 前記光伝達基材の材料は、BK7である、請求項3に記載の光学システム。
- 前記光学素子は、補正レンズを含む、請求項1に記載の光学システム。
- 前記光学素子は、平凹および/または平凸レンズを含む、請求項1に記載の光学システム。
- 前記光学素子は、フレネルレンズを含む、請求項1に記載の光学システム。
- 前記光学素子は、電子的に制御される動的なレンズを含む、請求項1に記載の光学システム。
- 前記電子的に制御される動的なレンズは、空間光変調器を含む、請求項8に記載の光学システム。
- 前記補正レンズは、成形プラスチックレンズである、請求項5に記載の光学システム。
- 前記光伝達基材の第2の外部の主要面に取り付けられた第2の光学素子をさらに含む、請求項1に記載の光学システム。
- 前記複数の光学素子は、少なくとも部分的に重なり合っている、請求項11に記載の光学システム。
- 前記光学素子は、視る者の目の収差を補正するように構成されている、請求項1に記載の光学システム。
- 前記複数の光学素子は、視る者の目の収差を補正するように構成されている、請求項11に記載の光学システム。
- 前記基材及び前記透明層は、眼鏡フレームの内側に組み立てられている、請求項1に記載の光学システム。
- 前記基材の外に光波を結合させるための前記部分反射面は、平坦な面である、請求項1に記載の光学システム。
- 前記基材の外に光波を結合させるための前記部分反射面は、部分反射誘電被覆によって被覆されている、請求項16に記載の光学システム。
- 前記基材の外に光波を結合させるための前記部分反射面は、前記基材の前記主要面に対して平行でない、請求項16に記載の光学システム。
- 前記基材の外に光波を結合させるための前記部分反射面は、曲面である、請求項1に記載の光学システム。
- 前記光学素子は、タッチスクリーンである、請求項1に記載の光学システム。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL236490A IL236490B (en) | 2014-12-25 | 2014-12-25 | Optical component on a conductive substrate |
IL236490 | 2014-12-25 | ||
JP2017534237A JP6779211B2 (ja) | 2014-12-25 | 2015-12-16 | 基材導波光学装置 |
JP2020030352A JP6966104B2 (ja) | 2014-12-25 | 2020-02-26 | 基材導波光学装置 |
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JP2017534237A Active JP6779211B2 (ja) | 2014-12-25 | 2015-12-16 | 基材導波光学装置 |
JP2020030352A Active JP6966104B2 (ja) | 2014-12-25 | 2020-02-26 | 基材導波光学装置 |
JP2021168461A Pending JP2022009123A (ja) | 2014-12-25 | 2021-10-14 | 基材導波光学装置 |
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JP2020030352A Active JP6966104B2 (ja) | 2014-12-25 | 2020-02-26 | 基材導波光学装置 |
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US (3) | US20180067315A1 (ja) |
EP (2) | EP3715935A1 (ja) |
JP (3) | JP6779211B2 (ja) |
KR (2) | KR102292535B1 (ja) |
CN (2) | CN107111129B (ja) |
BR (1) | BR112017013680B1 (ja) |
CA (1) | CA2969822C (ja) |
IL (1) | IL236490B (ja) |
RU (1) | RU2721661C2 (ja) |
SG (2) | SG11201704276TA (ja) |
WO (1) | WO2016103251A1 (ja) |
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IL236490B (en) | 2021-10-31 |
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US20200326545A1 (en) | 2020-10-15 |
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CN111240019B (zh) | 2022-06-24 |
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CA2969822A1 (en) | 2016-06-30 |
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