JP6779211B2 - 基材導波光学装置 - Google Patents
基材導波光学装置 Download PDFInfo
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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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- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
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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 (2)
- 光学システムであって、
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)、
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(16,102)、
前記基材の外に光波を結合させるための、前記基材(20)内に位置する少なくとも一つの部分反射面(22,104)、及び
前記基材の前記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、少なくとも一つの透明層(100,104,108)、
を有し、
前記少なくとも一つの透明層(100,104,108)は、臨界角よりも大きな角度で前記基材(20)の内側に結合された光波が、前記インターフェイス平面から、前記基材の前記主要面と前記透明層との間で、全内部反射によって前記基材の中に捕捉されるような臨界角を規定するように、前記光伝達基材の屈折率よりも低い屈折率を有し、
反射防止被覆が前記インターフェイス平面に塗布されている、光学システム。 - 光学システムであって、
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)、
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(16,102)、
前記基材の外に光波を結合させるための、前記基材(20)内に位置する少なくとも一つの部分反射面(22,104)、及び
前記基材の前記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、少なくとも一つの透明層(100,104,108)、
を有し、
前記少なくとも一つの透明層(100,104,108)は、臨界角よりも大きな角度で前記基材(20)の内側に結合された光波が、前記インターフェイス平面から、前記基材の前記主要面と前記透明層との間で、全内部反射によって前記基材の中に捕捉されるような臨界角を規定するように、前記光伝達基材の屈折率よりも低い屈折率を有し、
角度選択的反射被覆が前記インターフェイス平面に塗布されている、光学システム。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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JP2020030352A JP6966104B2 (ja) | 2014-12-25 | 2020-02-26 | 基材導波光学装置 |
JP2021168461A JP2022009123A (ja) | 2014-12-25 | 2021-10-14 | 基材導波光学装置 |
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IL236490 | 2014-12-25 | ||
IL236490A IL236490B (en) | 2014-12-25 | 2014-12-25 | Optical component on a conductive substrate |
PCT/IL2015/051222 WO2016103251A1 (en) | 2014-12-25 | 2015-12-16 | Substrate-guided optical device |
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JP2020030352A Division JP6966104B2 (ja) | 2014-12-25 | 2020-02-26 | 基材導波光学装置 |
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JP2018503865A JP2018503865A (ja) | 2018-02-08 |
JP2018503865A5 JP2018503865A5 (ja) | 2019-01-17 |
JP6779211B2 true JP6779211B2 (ja) | 2020-11-04 |
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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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Country Status (11)
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US (3) | US20180067315A1 (ja) |
EP (2) | EP3237954A1 (ja) |
JP (3) | JP6779211B2 (ja) |
KR (2) | KR102292535B1 (ja) |
CN (2) | CN111240019B (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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JP6966104B2 (ja) | 2021-11-10 |
CN107111129B (zh) | 2021-04-09 |
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EP3715935A1 (en) | 2020-09-30 |
US20180067315A1 (en) | 2018-03-08 |
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BR112017013680B1 (pt) | 2022-07-26 |
CA2969822C (en) | 2023-07-04 |
WO2016103251A1 (en) | 2016-06-30 |
RU2721661C2 (ru) | 2020-05-21 |
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