JP7001613B2 - 広視野のホログラフィックスキューミラー - Google Patents
広視野のホログラフィックスキューミラー Download PDFInfo
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- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Holo Graphy (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
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- Optical Elements Other Than Lenses (AREA)
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Description
本出願は、米国特許法の下で、2016年4月6日に出願された「Skew Mirrors,Methods of Use,and Methods of Manufacture」と題する米国特許出願第62/318,917号、及び2015年8月24日に出願された「Multiwavelength Diffraction Grating Mirrors,Methods of Use,and Methods of Manufacture」と題する米国特許出願第62/209,290号の優先権を主張する、2016年6月6日に出願された「Skew Mirrors,Methods of Use,and Methods of Manufacture」と題する米国特許出願第15/174,938号の一部継続出願である、2016年8月24日に出願された「Skew Mirrors,Methods of Use,and Methods of Manufacture」と題するPCT/US16/48499の一部継続出願である。本出願はまた、米国特許法の下で、2016年12月16日に出願された「Wide Field of View Skew Mirror」と題する米国特許出願第62/435,676号、及び2016年10月13日に出願された「TIGER Prisms and Methods of Use」と題する米国特許出願第62/407,994号の優先権を主張する。これら出願の各々は、参照によって本明細書に組み込まれる。
[0001]
この場合、格子構造120は、スキュー軸121及び反射軸の両方を画定する多数のホログラフィック格子を含む。各ホログラフィック格子の格子ベクトルは、スキュー軸121と平行であるか又は一致しており、スキュー軸121は、ホログラフィック格子媒体110の面法線111に対してスキュー角φを形成する。上記で略説したように、各ホログラフィック格子は、内部入射角の特定の範囲にわたって、特定の波長又は波長範囲で光を反射する。内部入射角は、ホログラフィック格子媒体110の内部で測定したときの、格子構造120への入射角である。各ホログラフィック格子が入射光を反射する軸は、反射軸と呼ばれる。
[0002]
各ホログラフィック格子の反射軸は、例えば約0.1°未満、0.01°未満、0.001°未満だけ、波長を伴うスキュー軸121から僅かに変化することがある。この非常に僅かな変化を考慮して、スキュー軸/反射軸は、スキューミラーを作ることを言及するとき(例えばホログラムをスキューミラー格子媒体に記録することを示すとき)に、スキュー軸と呼ばれることがあり、スキューミラーの光反射特性に言及するときに、反射軸と呼ばれることがある。
g.dFoV = 60; % diagonal angle
g.dia = 2 * tand(g.dFoV/2); % diagonal size @ dist=1.0
g.width = g.dia * cos(atan(g.aspect));
g.height = g.dia * sin(atan(g.aspect));
g.vFoV = 2 * atand(g.height/2);
g.hFoV = 2 * atand(g.width/2);
Claims (16)
- 格子媒体に存在する格子構造を含む光学反射デバイスであって、
前記格子構造は入射光を反射光として反射するように構築され、
前記入射光は400nm~700nmの範囲の第1の波長を含み、
前記反射光は前記第1の波長を含み、
前記第1の波長の前記入射光及び前記第1の波長の前記反射光は、反射軸によって二等分された角度を形成し、
前記格子構造は前記反射軸を中心として方向付けられた複数の格子を含み、前記反射軸は前記格子媒体の面法線に対してスキュー角を形成し、前記複数の格子は、前記第1の波長の前記入射光を反射可能な内部入射角の範囲が13.1°~47.6°となるように構成され、前記スキュー角は、2.0°より大きく、
前記反射軸は、前記入射光が内部入射角の前記範囲で前記格子構造に入射するときに、1°未満変化し、
前記複数の格子における各格子は、異なるビーム間記録ビーム角と共に記録され、記録波長において異なる格子周波数を有する、
光学反射デバイス。 - 前記反射軸は、前記入射光が少なくとも30°にわたる内部入射角の範囲で前記格子構造に入射するときに、1°未満変化する、請求項1に記載の光学反射デバイス。
- 前記入射光は第2の波長を含み、
前記反射光は前記第2の波長を含み、
前記第2の波長は、前記第1の波長とは少なくとも50nm異なる、
請求項1又は2に記載の光学反射デバイス。 - 前記入射光は第3の波長を含み、
前記反射光は前記第3の波長を含み、
前記第3の波長は、前記第1の波長及び前記第2の波長の各々とは少なくとも50nm異なる、
請求項3に記載の光学反射デバイス。 - 前記第1の波長は赤色領域に存在し、前記第2の波長は緑色領域に存在し、前記第3の波長は青色領域に存在する、請求項4に記載の光学反射デバイス。
- 前記入射光は、前記光学反射デバイスの内側から前記格子構造に入射し、
前記反射光は前記光学反射デバイスを出る、
請求項1から5のいずれか一項に記載の光学反射デバイス。 - 前記格子媒体に隣接した少なくとも1枚の基板を更に含む、請求項1から6のいずれか一項に記載の光学反射デバイス。
- 前記少なくとも1枚の基板は2枚の基板を含み、前記格子媒体は前記2枚の基板の間に配置されている、請求項7に記載の光学反射デバイス。
- 前記格子媒体は、少なくとも100μm厚のフォトポリマー媒体を含み、前記2枚の基板は、前記入射光の少なくとも60%、及び前記反射光の少なくとも60%を透過する、請求項8に記載の光学反射デバイス。
- 前記格子媒体は第1の屈折率を有し、前記2枚の基板は、前記第1の屈折率の0.1以内である第2の屈折率を有する、請求項8に記載の光学反射デバイス。
- 400nm~700nmの範囲の第1の波長の入射光によって、格子媒体に存在する格子構造を照明することであって、前記入射光は前記格子構造で反射して前記第1の波長の反射光を生成する、ことを含む方法であって、
前記入射光及び前記反射光は、前記格子媒体の面法線に対して少なくとも2.0°だけ傾いた反射軸によって二等分された角度を形成し、
前記格子構造は前記反射軸を中心として方向付けられた複数の格子を含み、前記反射軸は前記格子媒体の面法線に対してスキュー角を形成し、前記複数の格子は、前記第1の波長の前記入射光を前記第1の波長の前記反射光として反射可能な内部入射角の範囲が13.1°~47.6°となるように構成され、前記スキュー角は少なくとも2.0°であり、
前記反射軸は、前記入射光が内部入射角の前記範囲で前記格子媒体内の前記格子構造に入射するときに、1°未満変化し、
前記複数の格子における各格子は、異なるビーム間記録ビーム角と共に記録され、記録波長において異なる格子周波数を有する、方法。 - 前記反射軸は、前記入射光が少なくとも30°にわたる内部入射角の範囲で前記格子構造に入射するときに、1°未満変化する、請求項11に記載の方法。
- 前記格子構造を照明することは、
前記入射光を前記格子媒体の中に結合することと、
前記入射光を前記格子媒体内で内部全反射させることと、
を含む、請求項11に記載の方法。 - 前記格子構造を照明することは、
前記入射光を、前記格子媒体を介して前記格子構造まで導くこと
を含む、請求項11に記載の方法。 - 前記入射光及び前記反射光は、前記第1の波長とは少なくとも50nm異なる第2の波長を含み、前記入射光及び前記反射光は、前記第1の波長及び前記第2の波長の各々とは少なくとも50nm異なる第3の波長を含む、請求項11に記載の方法。
- 前記格子媒体の面法線に対して25°の角度で前記格子媒体から出た反射光を結合すること
を更に含む、請求項11に記載の方法。
Applications Claiming Priority (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201662318917P | 2016-04-06 | 2016-04-06 | |
US62/318,917 | 2016-04-06 | ||
US15/174,938 US10180520B2 (en) | 2015-08-24 | 2016-06-06 | Skew mirrors, methods of use, and methods of manufacture |
US15/174,938 | 2016-06-06 | ||
USPCT/US2016/048499 | 2016-08-24 | ||
PCT/US2016/048499 WO2017035283A1 (en) | 2015-08-24 | 2016-08-24 | Skew mirrors, methods of use, and methods of manufacture |
US201662407994P | 2016-10-13 | 2016-10-13 | |
US62/407,994 | 2016-10-13 | ||
US201662435676P | 2016-12-16 | 2016-12-16 | |
US62/435,676 | 2016-12-16 | ||
PCT/US2017/020087 WO2017176389A1 (en) | 2016-04-06 | 2017-03-01 | Wide field-of-view holographic skew mirrors |
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JP2019514049A JP2019514049A (ja) | 2019-05-30 |
JP7001613B2 true JP7001613B2 (ja) | 2022-01-19 |
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JP2018550324A Active JP7001613B2 (ja) | 2016-04-06 | 2017-03-01 | 広視野のホログラフィックスキューミラー |
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EP (1) | EP3420415A4 (ja) |
JP (1) | JP7001613B2 (ja) |
KR (1) | KR102123174B1 (ja) |
CN (1) | CN109074026A (ja) |
WO (1) | WO2017176389A1 (ja) |
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