JPWO2020106824A5 - - Google Patents

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JPWO2020106824A5
JPWO2020106824A5 JP2021527173A JP2021527173A JPWO2020106824A5 JP WO2020106824 A5 JPWO2020106824 A5 JP WO2020106824A5 JP 2021527173 A JP2021527173 A JP 2021527173A JP 2021527173 A JP2021527173 A JP 2021527173A JP WO2020106824 A5 JPWO2020106824 A5 JP WO2020106824A5
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いくつかの実施形態では、拡張現実ディスプレイシステムのための接眼レンズ導波管は、光学的に透過性の基板と、入力結合格子（ＩＣＧ）領域と、基板の第１の側上に形成される、第１の組み合わせられた瞳エクスパンダ－抽出器（ＣＰＥ）格子領域とを備え、ＩＣＧ領域は、複数の光の入力ビームのセットを受け取るように構成され、入力ビームのセットは、接眼レンズ導波管と関連付けられるｋ－空間環の中心に位置する視野（ＦＯＶ）形状を形成する、ｋ－ベクトルのセットと関連付けられ、ＩＣＧ領域は、誘導ビームとして、それらを基板の中に結合するように、かつ少なくとも部分的に、ｋ－空間環内において、ＦＯＶ形状を第１の位置に平行移動させるように、入力ビームを回折するように構成され、第１の相互作用を用いて、第１のＣＰＥ格子領域は、少なくとも部分的に、ｋ－空間環内において、ＦＯＶ形状を第１の位置から第２および第３の位置に平行移動させるように、誘導ビームを回折するように構成され、第２の相互作用を用いて、第１のＣＰＥ格子領域は、ＦＯＶ形状を第２および第３の位置からｋ－空間環の中心に平行移動させるように、誘導ビームを回折するように構成される。
本発明は、例えば、以下の項目を提供する。
（項目１）
拡張現実ディスプレイシステムのための接眼レンズ導波管であって、前記接眼レンズ導波管は、
第１の表面および第２の表面を有する光学的に透過性の基板と、
前記基板の表面のうちの１つ上または前記１つ内に形成される入力結合格子（ＩＣＧ）領域であって、前記ＩＣＧ領域は、光の入力ビームを受け取り、誘導ビームとして、前記入力ビームを前記基板の中に結合するように構成される、ＩＣＧ領域と、
前記基板の第１の表面上または前記第１の表面内に形成される第１の組み合わせられた瞳エクスパンダ－抽出器（ＣＰＥ）格子領域であって、前記第１のＣＰＥ格子領域は、前記誘導ビームを前記ＩＣＧ領域から受け取り、第１の複数の回折ビームを複数の分散された場所に作成し、第１の複数の出力ビームを外部結合するように位置付けられる、第１のＣＰＥ格子領域と、
前記基板の第２の表面上または前記第２の表面内に形成される第２のＣＰＥ格子領域であって、前記第２のＣＰＥ格子領域は、前記誘導ビームを前記ＩＣＧ領域から受け取り、第２の複数の回折ビームを複数の分散された場所に作成し、第２の複数の出力ビームを外部結合するように位置付けられる、第２のＣＰＥ格子領域と
を備える、接眼レンズ導波管。
（項目２）
前記第１のＣＰＥ格子領域は、前記第２の複数の回折ビームを外部結合するように構成され、前記第２のＣＰＥ格子領域は、前記第１の複数の回折ビームを外部結合するように構成される、項目１に記載の接眼レンズ導波管。
（項目３）
前記第１および第２の複数の回折ビームは、交互に、前記第１および第２のＣＰＥ格子領域と相互作用する、項目２に記載の接眼レンズ導波管。
（項目４）
前記第１のＣＰＥ格子領域および前記第２のＣＰＥ格子領域は両方とも、複数の周期的に繰り返される回折ラインを備え、前記第１のＣＰＥ格子領域の回折ラインは、前記第２のＣＰＥ格子領域の回折ラインに対して実質的に６０°の角度で配向される、項目１に記載の接眼レンズ導波管。
（項目５）
前記第１および第２のＣＰＥ格子領域の回折ラインは、同一周期を有する、項目４に記載の接眼レンズ導波管。
（項目６）
前記第１および第２のＣＰＥ格子領域の回折ラインは、共通マスタテンプレートを使用して形成される、項目４に記載の接眼レンズ導波管。
（項目７）
前記ＩＣＧ領域は、複数の周期的に繰り返される回折ラインを備え、前記ＩＣＧ領域の回折ラインは、前記第１のＣＰＥ格子領域の回折ラインおよび前記第２のＣＰＥ格子領域の回折ラインに対して実質的に６０°の角度で配向される、項目４に記載の接眼レンズ導波管。
（項目８）
前記ＩＣＧ領域、前記第１のＣＰＥ格子領域、および前記第２のＣＰＥ格子領域の回折ラインは、同一周期を有する、項目７に記載の接眼レンズ導波管。
（項目９）
前記第１および第２のＣＰＥ格子領域は、少なくとも９０％重複する、項目１に記載の接眼レンズ導波管。
（項目１０）
前記第１および第２のＣＰＥ格子領域は、同一サイズである、項目１に記載の接眼レンズ導波管。
（項目１１）
前記第１および第２のＣＰＥ格子領域は、相互に整合される、項目１０に記載の接眼レンズ導波管。
（項目１２）
前記第１のＣＰＥ格子領域は、前記ＩＣＧ領域からの誘導ビームの屈折力の一部を少なくとも２つの方向に回折することによって、前記第１の複数の回折ビームを作成するように構成される、項目１に記載の接眼レンズ導波管。
（項目１３）
前記２つの方向のうちの１つは、ゼロ次回折ビームに対応する、項目１２に記載の接眼レンズ導波管。
（項目１４）
前記第２のＣＰＥ格子領域は、前記ＩＣＧ領域からの誘導ビームの屈折力の一部を少なくとも２つの方向に回折することによって、前記第２の複数の回折ビームを作成するように構成される、項目１に記載の接眼レンズ導波管。
（項目１５）
前記２つの方向のうちの１つは、ゼロ次回折ビームに対応する、項目１４に記載の接眼レンズ導波管。
（項目１６）
前記第１の複数の回折ビームは、第１の方向に伝搬し、前記第２の複数の回折ビームは、前記第１の方向に対して実質的に６０°の角度で第２の方向に伝搬する、項目１に記載の接眼レンズ導波管。
（項目１７）
前記入力ビームは、コリメートされ、５ｍｍ以下の直径を有する、項目１に記載の接眼レンズ導波管。
（項目１８）
前記光学的に透過性の基板は、平面である、項目１に記載の接眼レンズ導波管。
（項目１９）
前記接眼レンズ導波管は、拡張現実ディスプレイシステムのための接眼レンズの中に組み込まれる、項目１に記載の接眼レンズ導波管。
（項目２０）
前記接眼レンズは、カラー画像を複数の深度平面に表示するように構成される、項目１９に記載の接眼レンズ導波管。
（項目２１）
前記ＩＣＧ領域は、複数の光の入力ビームのセットを受け取るように構成され、前記入力ビームのセットは、前記接眼レンズ導波管と関連付けられるｋ－空間環の中心に位置する視野（ＦＯＶ）形状を形成するｋ－ベクトルのセットと関連付けられ、
前記ＩＣＧ領域は、誘導ビームとして、それらを前記基板の中に結合するように、かつ少なくとも部分的に、前記ｋ－空間環内において、前記ＦＯＶ形状を第１の位置に平行移動させるように、前記入力ビームを回折するように構成され、
前記第１のＣＰＥ格子領域は、少なくとも部分的に、前記ｋ－空間環内において、前記ＦＯＶ形状を第２の位置に平行移動させるように、前記誘導ビームを回折するように構成され、
前記第２のＣＰＥ格子領域は、少なくとも部分的に、前記ｋ－空間環内において、前記ＦＯＶ形状を第３の位置に平行移動させるように、前記誘導ビームを回折するように構成される、
項目１に記載の接眼レンズ導波管。
（項目２２）
前記ｋ－空間環の中心、前記第１の位置、および前記第２の位置は、ｋ－空間内の第１の正三角形を定義する、項目２１に記載の接眼レンズ導波管。
（項目２３）
前記ｋ－空間環の中心、前記第１の位置、および前記第３の位置は、ｋ－空間内の第２の正三角形を定義する、項目２２に記載の接眼レンズ導波管。
（項目２４）
前記ｋ－空間内の第１および第２の正三角形は、一辺を共有する、項目２３に記載の接眼レンズ導波管。
（項目２５）
拡張現実ディスプレイシステムのための接眼レンズ導波管であって、前記接眼レンズ導波管は、
光学的に透過性の基板と、
入力結合格子（ＩＣＧ）領域と、
第１の組み合わせられた瞳エクスパンダ－抽出器（ＣＰＥ）格子領域と、
第２のＣＰＥ格子領域と
を備え、
前記ＩＣＧ領域は、複数の光の入力ビームのセットを受け取るように構成され、前記入力ビームのセットは、前記接眼レンズ導波管と関連付けられるｋ－空間環の中心に位置する視野（ＦＯＶ）形状を形成するｋ－ベクトルのセットと関連付けられ、
前記ＩＣＧ領域は、誘導ビームとして、それらを前記基板の中に結合するように、かつ少なくとも部分的に、前記ｋ－空間環内において、前記ＦＯＶ形状を第１の位置に平行移動させるように、前記入力ビームを回折するように構成され、
前記第１のＣＰＥ格子領域は、少なくとも部分的に、前記ｋ－空間環内において、前記ＦＯＶ形状を前記第１の位置から第２の位置に平行移動させるように、前記誘導ビームを回折するように構成され、
前記第２のＣＰＥ格子領域は、少なくとも部分的に、前記ｋ－空間環内において、前記ＦＯＶ形状を前記第１の位置から第３の位置に平行移動させるように、前記誘導ビームを回折するように構成され、
前記第１のＣＰＥ格子領域は、前記ＦＯＶ形状を前記第３の位置から前記ｋ－空間環の中心に平行移動させるように、前記誘導ビームを回折するように構成され、
前記第２のＣＰＥ格子領域は、前記ＦＯＶ形状を前記第２の位置から前記ｋ－空間環の中心に平行移動させるように、前記誘導ビームを回折するように構成される、
接眼レンズ導波管。
（項目２６）
前記ｋ－空間環の中心、前記第１の位置、および前記第２の位置は、ｋ－空間内の第１の正三角形を定義する、項目２５に記載の接眼レンズ導波管。
（項目２７）
前記ｋ－空間環の中心、前記第１の位置、および前記第３の位置は、ｋ－空間内の第２の正三角形を定義する、項目２６に記載の接眼レンズ導波管。
（項目２８）
前記ｋ－空間内の第１および第２の正三角形は、一辺を共有する、項目２７に記載の接眼レンズ導波管。
（項目２９）
前記第１のＣＰＥ格子領域および前記第２のＣＰＥ格子領域は、前記光学的に透過性の基板の対向側上または前記対向側内に形成される、項目２５に記載の接眼レンズ導波管。
（項目３０）
前記誘導ビームは、交互に、前記第１および第２のＣＰＥ格子領域と相互作用する、項目２５に記載の接眼レンズ導波管。
（項目３１）
前記第１のＣＰＥ格子領域と関連付けられる一次格子ベクトルは、前記第２のＣＰＥ格子領域と関連付けられる一次格子ベクトルと同一大きさを有する、項目２５に記載の接眼レンズ導波管。
（項目３２）
前記ＩＣＧ領域と関連付けられる一次格子ベクトルは、前記第１のＣＰＥ格子領域と関連付けられる一次格子ベクトル、および、前記第２のＣＰＥ格子領域と関連付けられる一次格子ベクトルと同一大きさを有する、項目３１に記載の接眼レンズ導波管。
（項目３３）
前記接眼レンズ導波管は、拡張現実ディスプレイシステムのための接眼レンズの中に組み込まれる、項目２５に記載の接眼レンズ導波管。
（項目３４）
前記接眼レンズは、カラー画像を複数の深度平面に表示するように構成される、項目３３に記載の接眼レンズ導波管。
（項目３５）
拡張現実ディスプレイシステムのための接眼レンズ導波管であって、前記接眼レンズ導波管は、
第１の表面および第２の表面を有する光学的に透過性の基板と、
前記基板の表面のうちの１つ上または前記１つ内に形成される入力結合格子（ＩＣＧ）領域であって、前記ＩＣＧ領域は、光のビームを受け取り、誘導伝搬モードにおいて、前記ビームを前記基板の中に結合するように構成される、ＩＣＧ領域と、
前記基板の第１の表面上または前記第１の表面内に形成される第１の組み合わせられた瞳エクスパンダ－抽出器（ＣＰＥ）格子領域であって、前記第１のＣＰＥ格子領域は、前記ＩＣＧ領域からの光のビームを受け取るように位置付けられ、前記第１のＣＰＥ格子領域は、第１の相互作用を用いて、前記ビームの伝搬方向を改変し、第２の相互作用を用いて、前記ビームを前記接眼レンズ導波管から外部結合するように構成される、複数の回折特徴を備える、第１のＣＰＥ格子領域と
を備える、接眼レンズ導波管。
（項目３６）
前記第１のＣＰＥ格子領域の複数の回折特徴は、少なくとも２つの方向に周期性を呈する、項目３５に記載の接眼レンズ導波管。
（項目３７）
前記第１のＣＰＥ格子領域の複数の回折特徴は、相互に対して実質的に６０°の角度で配向される第１および第２の方向に周期性を呈する、項目３６に記載の接眼レンズ導波管。
（項目３８）
前記ＩＣＧ領域は、前記第１の方向および前記第２の方向の両方に対して実質的に６０°の角度で配向される第３の方向に周期性を呈する複数の回折特徴を備える、項目３７に記載の接眼レンズ導波管。
（項目３９）
前記基板の第２の表面上または前記第２の表面内に形成される第２のＣＰＥ格子領域をさらに備え、前記第２のＣＰＥ格子領域は、第１の相互作用を用いて、前記ビームの伝搬方向を改変し、第２の相互作用を用いて、前記ビームを前記接眼レンズ導波管から外部結合するように構成される、複数の回折特徴を備える、項目３５に記載の接眼レンズ導波管。
（項目４０）
前記第１および第２のＣＰＥ格子領域は、同じである、項目３９に記載の接眼レンズ導波管。
（項目４１）
前記基板は、前記ビームが、前記誘導伝搬モードへと結合された後、前記ＩＣＧ領域と相互作用することを防止するために十分に大きい厚さを有する、項目３９に記載の接眼レンズ導波管。
（項目４２）
前記ビームは、コリメートされ、５ｍｍ以下の直径を有する、項目３５に記載の接眼レンズ導波管。
（項目４３）
前記光学的に透過性の基板は、平面である、項目３５に記載の接眼レンズ導波管。
（項目４４）
前記接眼レンズ導波管は、拡張現実ディスプレイシステムのための接眼レンズの中に組み込まれる、項目３５に記載の接眼レンズ導波管。
（項目４５）
前記接眼レンズは、カラー画像を複数の深度平面に表示するように構成される、項目４４に記載の接眼レンズ導波管。
（項目４６）
拡張現実ディスプレイシステムのための接眼レンズ導波管であって、前記接眼レンズ導波管は、
光学的に透過性の基板と、
入力結合格子（ＩＣＧ）領域と、
前記基板の第１の側上に形成される第１の組み合わせられた瞳エクスパンダ－抽出器（ＣＰＥ）格子領域と
を備え、
前記ＩＣＧ領域は、複数の光の入力ビームのセットを受け取るように構成され、前記入力ビームのセットは、前記接眼レンズ導波管と関連付けられるｋ－空間環の中心に位置する視野（ＦＯＶ）形状を形成するｋ－ベクトルのセットと関連付けられ、
前記ＩＣＧ領域は、誘導ビームとして、それらを前記基板の中に結合するように、かつ少なくとも部分的に、前記ｋ－空間環内において、前記ＦＯＶ形状を第１の位置に平行移動させるように、前記入力ビームを回折するように構成され、
第１の相互作用を用いて、前記第１のＣＰＥ格子領域は、少なくとも部分的に、前記ｋ－空間環内において、前記ＦＯＶ形状を前記第１の位置から第２および第３の位置に平行移動させるように、前記誘導ビームを回折するように構成され、
第２の相互作用を用いて、前記第１のＣＰＥ格子領域は、前記ＦＯＶ形状を前記第２および第３の位置から前記ｋ－空間環の中心に平行移動させるように、前記誘導ビームを回折するように構成される、
接眼レンズ導波管。
（項目４７）
前記ｋ－空間環の中心、前記第１の位置、および前記第２の位置は、ｋ－空間内の第１の正三角形を定義する、項目４６に記載の接眼レンズ導波管。
（項目４８）
前記ｋ－空間環の中心、前記第１の位置、および前記第３の位置は、ｋ－空間内の第２の正三角形を定義する、項目４７に記載の接眼レンズ導波管。
（項目４９）
前記ｋ－空間内の第１および第２の正三角形は、一辺を共有する、項目４８に記載の接眼レンズ導波管。
（項目５０）
前記基板の第２の側上に形成される第２のＣＰＥ格子領域をさらに備え、
第１の相互作用を用いて、前記第２のＣＰＥ格子領域は、少なくとも部分的に、前記ｋ－空間環内において、前記ＦＯＶ形状を前記第１の位置から前記第２および第３の位置に平行移動させるように、前記誘導ビームを回折するように構成され、
第２の相互作用を用いて、前記第２のＣＰＥ格子領域は、前記ＦＯＶ形状を前記第２および第３の位置から前記ｋ－空間環の中心に平行移動させるように、前記誘導ビームを回折するように構成される、
項目４６に記載の接眼レンズ導波管。
（項目５１）
前記第２のＣＰＥ格子領域は、前記接眼レンズ導波管からの出力ビームの密度を増加させる、項目５０に記載の接眼レンズ導波管。
（項目５２）
前記第２のＣＰＥ格子領域は、少なくとも４倍、前記出力ビームの密度を増加させる、項目５１に記載の接眼レンズ導波管。
In some embodiments, an eyepiece waveguide for an augmented reality display system is formed on an optically transparent substrate, an input coupling grating (ICG) region, and a first side of the substrate. , a first combined pupil expander-extractor (CPE) grating region, the ICG region configured to receive a plurality of sets of input beams of light, the sets of input beams being directed to the eyepiece. Associated with a set of k-vectors that form a field-of-view (FOV) shape centered in the k-space ring associated with the wave tube, the ICG regions are coupled into the substrate as guided beams. and at least partially configured to diffract the input beam to translate the FOV shape to a first position within the k-space annulus, using the first interaction to produce a first The CPE grating region is configured, at least in part, to diffract the stimulation beam to translate the FOV shape from the first position to the second and third positions within the k-space annulus; With the interaction of 2, the first CPE grating region is configured to diffract the stimulated beam so as to translate the FOV shape from the second and third positions to the center of the k-space ring. .
The present invention provides, for example, the following items.
(Item 1)
An eyepiece waveguide for an augmented reality display system, the eyepiece waveguide comprising:
an optically transmissive substrate having a first surface and a second surface;
an input coupling grating (ICG) region formed on or within one of the surfaces of said substrate, said ICG region receiving an input beam of light and said input beam as a stimulating beam; an ICG region configured to bond into the substrate;
A first combined pupil expander-extractor (CPE) grating region formed on or within a first surface of said substrate, said first CPE grating region comprising said a first CPE grating region positioned to receive a stimulating beam from said ICG region, produce a first plurality of diffracted beams at a plurality of distributed locations, and out-couple a first plurality of output beams; ,
a second CPE grating region formed on or within the second surface of the substrate, the second CPE grating region receiving the stimulated beam from the ICG region; a second CPE grating region positioned to produce a plurality of diffracted beams of at a plurality of distributed locations and out-couple a second plurality of output beams;
an eyepiece waveguide.
(Item 2)
the first CPE grating region configured to outcouple the second plurality of diffracted beams and the second CPE grating region configured to outcouple the first plurality of diffracted beams 2. An eyepiece waveguide according to item 1, wherein the eyepiece waveguide is
(Item 3)
3. The eyepiece waveguide of item 2, wherein the first and second plurality of diffracted beams alternately interact with the first and second CPE grating regions.
(Item 4)
Both the first CPE grating region and the second CPE grating region comprise a plurality of periodically repeating diffraction lines, the diffraction lines of the first CPE grating region being aligned with the diffraction lines of the second CPE grating region. 2. An eyepiece waveguide according to item 1, oriented at an angle of substantially 60° to the diffraction line of .
(Item 5)
5. The eyepiece waveguide of item 4, wherein the diffraction lines of the first and second CPE grating regions have the same period.
(Item 6)
5. The eyepiece waveguide of item 4, wherein the diffraction lines of the first and second CPE grating regions are formed using a common master template.
(Item 7)
The ICG region comprises a plurality of periodically repeating diffraction lines, and the diffraction lines of the ICG region are substantially relative to the diffraction lines of the first CPE grating region and the diffraction lines of the second CPE grating region. 5. An eyepiece waveguide according to item 4, oriented at an angle of 60°.
(Item 8)
8. The eyepiece waveguide of item 7, wherein the diffraction lines of the ICG region, the first CPE grating region and the second CPE grating region have the same period.
(Item 9)
The eyepiece waveguide of item 1, wherein the first and second CPE grating regions overlap at least 90%.
(Item 10)
2. The eyepiece waveguide of item 1, wherein the first and second CPE grating regions are the same size.
(Item 11)
11. The eyepiece waveguide of item 10, wherein the first and second CPE grating regions are mutually aligned.
(Item 12)
the first CPE grating region is configured to diffract a portion of the refractive power of the stimulated beam from the ICG region in at least two directions to create the first plurality of diffracted beams; An eyepiece waveguide according to item 1.
(Item 13)
13. The eyepiece waveguide of item 12, wherein one of said two directions corresponds to a zero order diffracted beam.
(Item 14)
the second CPE grating region is configured to create the second plurality of diffracted beams by diffracting a portion of the refractive power of the stimulated beam from the ICG region in at least two directions; An eyepiece waveguide according to item 1.
(Item 15)
15. The eyepiece waveguide of item 14, wherein one of said two directions corresponds to a zero order diffracted beam.
(Item 16)
The first plurality of diffracted beams propagates in a first direction and the second plurality of diffracted beams propagates in a second direction at an angle substantially 60° with respect to the first direction. An eyepiece waveguide according to item 1, wherein
(Item 17)
An eyepiece waveguide according to item 1, wherein the input beam is collimated and has a diameter of 5 mm or less.
(Item 18)
An eyepiece waveguide according to item 1, wherein the optically transmissive substrate is planar.
(Item 19)
The eyepiece waveguide of item 1, wherein the eyepiece waveguide is incorporated into an eyepiece for an augmented reality display system.
(Item 20)
20. The eyepiece waveguide of item 19, wherein the eyepiece is configured to display color images in multiple depth planes.
(Item 21)
The ICG region is configured to receive a set of input beams of light, the set of input beams having a field-of-view (FOV) shape centered in a k-space annulus associated with the eyepiece waveguide. associated with a set of k-vectors forming
the ICG regions as guided beams to couple them into the substrate and at least partially translate the FOV shape to a first position within the k-space annulus; configured to diffract the input beam;
the first CPE grating region is configured, at least in part, to diffract the stimulation beam to translate the FOV shape to a second position within the k-space annulus;
the second CPE grating region is configured, at least in part, to diffract the stimulation beam to translate the FOV shape to a third position within the k-space annulus;
An eyepiece waveguide according to item 1.
(Item 22)
22. The eyepiece waveguide of item 21, wherein the center of the k-space ring, the first location and the second location define a first equilateral triangle in k-space.
(Item 23)
23. The eyepiece waveguide of item 22, wherein the center of the k-space ring, the first position and the third position define a second equilateral triangle in k-space.
(Item 24)
24. The eyepiece waveguide of item 23, wherein the first and second equilateral triangles in k-space share one side.
(Item 25)
An eyepiece waveguide for an augmented reality display system, the eyepiece waveguide comprising:
an optically transparent substrate;
an input coupling grid (ICG) region;
a first combined pupil expander-extractor (CPE) grating region;
a second CPE grating region; and
with
The ICG region is configured to receive a set of input beams of light, the set of input beams having a field-of-view (FOV) shape centered in a k-space annulus associated with the eyepiece waveguide. associated with a set of k-vectors forming
the ICG regions as guided beams to couple them into the substrate and at least partially translate the FOV shape to a first position within the k-space annulus; configured to diffract the input beam;
The first CPE grating region is adapted, at least in part, to diffract the stimulation beam to translate the FOV shape from the first position to a second position within the k-space annulus. configured to
The second CPE grating region is configured to, at least partially, diffract the stimulation beam to translate the FOV shape from the first position to a third position within the k-space annulus. configured to
the first CPE grating region is configured to diffract the stimulating beam to translate the FOV shape from the third location to the center of the k-space ring;
the second CPE grating region is configured to diffract the stimulated beam to translate the FOV shape from the second location to the center of the k-space ring;
Eyepiece waveguide.
(Item 26)
26. The eyepiece waveguide of item 25, wherein the center of the k-space ring, the first position and the second position define a first equilateral triangle in k-space.
(Item 27)
27. The eyepiece waveguide of item 26, wherein the center of the k-space ring, the first position and the third position define a second equilateral triangle in k-space.
(Item 28)
28. The eyepiece waveguide of item 27, wherein the first and second equilateral triangles in k-space share one side.
(Item 29)
26. The eyepiece waveguide of item 25, wherein the first CPE grating region and the second CPE grating region are formed on or in opposite sides of the optically transparent substrate.
(Item 30)
26. The eyepiece waveguide of item 25, wherein the stimulated beams alternately interact with the first and second CPE grating regions.
(Item 31)
26. The eyepiece waveguide of item 25, wherein the primary grating vectors associated with the first CPE grating region have the same magnitude as the primary grating vectors associated with the second CPE grating region.
(Item 32)
in item 31, wherein the primary lattice vectors associated with the ICG regions have the same magnitude as the primary lattice vectors associated with the first CPE lattice regions and the primary lattice vectors associated with the second CPE lattice regions. An eyepiece waveguide as described.
(Item 33)
26. The eyepiece waveguide of item 25, wherein the eyepiece waveguide is incorporated into an eyepiece for an augmented reality display system.
(Item 34)
34. An eyepiece waveguide according to item 33, wherein the eyepiece is configured to display color images in multiple depth planes.
(Item 35)
An eyepiece waveguide for an augmented reality display system, the eyepiece waveguide comprising:
an optically transmissive substrate having a first surface and a second surface;
An incoupling grating (ICG) region formed on or within one of the surfaces of the substrate, the ICG region receiving a beam of light and transmitting the beam in a guided propagation mode to the an ICG region configured to bond into a substrate;
A first combined pupil expander-extractor (CPE) grating region formed on or within a first surface of said substrate, said first CPE grating region comprising said positioned to receive a beam of light from an ICG region, the first CPE grating region using a first interaction to modify the propagation direction of the beam; a first CPE grating region comprising a plurality of diffractive features configured to outcouple the beam from the eyepiece waveguide;
an eyepiece waveguide.
(Item 36)
36. The eyepiece waveguide of item 35, wherein the plurality of diffractive features of the first CPE grating region exhibits periodicity in at least two directions.
(Item 37)
37. An ocular lens guide according to item 36, wherein the plurality of diffractive features of the first CPE grating region exhibit periodicity in first and second directions oriented at angles of substantially 60° with respect to each other. Wave tube.
(Item 38)
Item 37, wherein said ICG region comprises a plurality of diffractive features exhibiting periodicity in a third direction oriented at an angle of substantially 60° with respect to both said first direction and said second direction. The eyepiece waveguide as described in .
(Item 39)
further comprising a second CPE grating region formed on or within the second surface of the substrate, the second CPE grating region using the first interaction to direct the beam to 36. The eyepiece waveguide of item 35, comprising a plurality of diffractive features configured to alter propagation direction and out-couple the beam from the eyepiece waveguide using a second interaction. tube.
(Item 40)
40. The eyepiece waveguide of item 39, wherein the first and second CPE grating regions are the same.
(Item 41)
40. An eyepiece waveguide according to item 39, wherein the substrate has a thickness sufficiently large to prevent the beam from interacting with the ICG region after being coupled into the guided propagation mode. .
(Item 42)
36. The eyepiece waveguide of item 35, wherein the beam is collimated and has a diameter of 5 mm or less.
(Item 43)
36. The eyepiece waveguide of item 35, wherein the optically transmissive substrate is planar.
(Item 44)
36. The eyepiece waveguide of item 35, wherein the eyepiece waveguide is incorporated into an eyepiece for an augmented reality display system.
(Item 45)
45. The eyepiece waveguide of item 44, wherein the eyepiece is configured to display color images in multiple depth planes.
(Item 46)
An eyepiece waveguide for an augmented reality display system, the eyepiece waveguide comprising:
an optically transparent substrate;
an input coupling grid (ICG) region;
a first combined pupil expander-extractor (CPE) grating region formed on a first side of the substrate;
with
The ICG region is configured to receive a set of input beams of light, the set of input beams having a field-of-view (FOV) shape centered in a k-space annulus associated with the eyepiece waveguide. associated with a set of k-vectors forming
the ICG regions as guided beams to couple them into the substrate and at least partially translate the FOV shape to a first position within the k-space annulus; configured to diffract the input beam;
With a first interaction, the first CPE grating region at least partially parallels the FOV shape from the first position to second and third positions within the k-space annulus. configured to diffract the directed beam so as to move;
Using a second interaction, the first CPE grating region diffracts the stimulating beam to translate the FOV shape from the second and third positions to the center of the k-space ring. configured to
Eyepiece waveguide.
(Item 47)
47. The eyepiece waveguide of item 46, wherein the center of the k-space ring, the first position and the second position define a first equilateral triangle in k-space.
(Item 48)
48. The eyepiece waveguide of item 47, wherein the center of the k-space ring, the first position and the third position define a second equilateral triangle in k-space.
(Item 49)
49. The eyepiece waveguide of item 48, wherein the first and second equilateral triangles in k-space share a side.
(Item 50)
further comprising a second CPE grating region formed on a second side of said substrate;
Using a first interaction, the second CPE grating region moves, at least in part, the FOV shape from the first position to the second and third positions within the k-space annulus. configured to diffract the directed beam so as to translate;
Using a second interaction, the second CPE grating region diffracts the stimulating beam to translate the FOV shape from the second and third positions to the center of the k-space ring. configured to
47. An eyepiece waveguide according to item 46.
(Item 51)
51. The eyepiece waveguide of item 50, wherein the second CPE grating region increases the density of the output beam from the eyepiece waveguide.
(Item 52)
52. The eyepiece waveguide of item 51, wherein said second CPE grating region increases the density of said output beam by at least a factor of four.

Claims (25)

拡張現実ディスプレイシステムのための接眼レンズ導波管であって、前記接眼レンズ導波管は、
光学的に透過性の基板と、
入力結合格子（ＩＣＧ）領域と、
第１の組み合わせられた瞳エクスパンダ－抽出器（ＣＰＥ）格子領域と、
第２のＣＰＥ格子領域と
を備え、
前記ＩＣＧ領域は、複数の光の入力ビームのセットを受け取るように構成され、前記入力ビームのセットは、前記接眼レンズ導波管と関連付けられるｋ－空間環の中心に位置する視野（ＦＯＶ）形状を形成するｋ－ベクトルのセットと関連付けられ、
前記ＩＣＧ領域は、誘導ビームとして、それらを前記基板の中に結合するように、かつ少なくとも部分的に、前記ｋ－空間環内において、前記ＦＯＶ形状を第１の位置に平行移動させるように、前記入力ビームを回折するように構成され、
前記第１のＣＰＥ格子領域は、少なくとも部分的に、前記ｋ－空間環内において、前記ＦＯＶ形状を前記第１の位置から第２の位置に平行移動させるように、前記誘導ビームを回折するように構成され、
前記第２のＣＰＥ格子領域は、少なくとも部分的に、前記ｋ－空間環内において、前記ＦＯＶ形状を前記第１の位置から第３の位置に平行移動させるように、前記誘導ビームを回折するように構成され、
前記第１のＣＰＥ格子領域は、前記ＦＯＶ形状を前記第３の位置から前記ｋ－空間環の中心に平行移動させるように、前記誘導ビームを回折するように構成され、
前記第２のＣＰＥ格子領域は、前記ＦＯＶ形状を前記第２の位置から前記ｋ－空間環の中心に平行移動させるように、前記誘導ビームを回折するように構成される、
接眼レンズ導波管。 An eyepiece waveguide for an augmented reality display system, the eyepiece waveguide comprising:
an optically transparent substrate;
an input coupling grating (ICG) region;
a first combined pupil expander-extractor (CPE) grating region;
a second CPE grating region;
The ICG region is configured to receive a set of input beams of light, the set of input beams having a field-of-view (FOV) shape centered in a k-space annulus associated with the eyepiece waveguide. associated with a set of k-vectors forming
the ICG regions as guided beams to couple them into the substrate and at least partially translate the FOV shape to a first position within the k-space annulus; configured to diffract the input beam;
The first CPE grating region is adapted, at least in part, to diffract the stimulation beam to translate the FOV shape from the first position to a second position within the k-space annulus. configured to
The second CPE grating region is configured to, at least partially, diffract the stimulation beam to translate the FOV shape from the first position to a third position within the k-space annulus. configured to
the first CPE grating region is configured to diffract the stimulating beam to translate the FOV shape from the third location to the center of the k-space ring;
the second CPE grating region is configured to diffract the stimulated beam to translate the FOV shape from the second location to the center of the k-space ring;
Eyepiece waveguide. 前記ｋ－空間環の中心、前記第１の位置、および前記第２の位置は、ｋ－空間内の第１の正三角形を定義する、請求項１に記載の接眼レンズ導波管。 2. The eyepiece waveguide of claim 1 , wherein the center of the k-space ring, the first position, and the second position define a first equilateral triangle in k-space. 前記ｋ－空間環の中心、前記第１の位置、および前記第３の位置は、ｋ－空間内の第２の正三角形を定義する、請求項２に記載の接眼レンズ導波管。 3. The eyepiece waveguide of claim 2 , wherein the center of the k-space ring, the first location, and the third location define a second equilateral triangle in k-space. 前記ｋ－空間内の前記第１および第２の正三角形は、一辺を共有する、請求項３に記載の接眼レンズ導波管。 4. The eyepiece waveguide of claim 3 , wherein said first and second equilateral triangles in said k-space share a side. 前記第１のＣＰＥ格子領域および前記第２のＣＰＥ格子領域は、前記光学的に透過性の基板の対向側上または前記対向側内に形成される、請求項１に記載の接眼レンズ導波管。 2. The eyepiece waveguide of claim 1 , wherein the first CPE grating region and the second CPE grating region are formed on or in opposite sides of the optically transparent substrate. . 前記誘導ビームは、交互に、前記第１および第２のＣＰＥ格子領域と相互作用する、請求項１に記載の接眼レンズ導波管。 2. The eyepiece waveguide of claim 1 , wherein said stimulating beams alternately interact with said first and second CPE grating regions. 前記第１のＣＰＥ格子領域と関連付けられる一次格子ベクトルは、前記第２のＣＰＥ格子領域と関連付けられる一次格子ベクトルと同一の大きさを有する、請求項１に記載の接眼レンズ導波管。 2. The eyepiece waveguide of claim 1 , wherein the primary grating vectors associated with the first CPE grating region have the same magnitude as the primary grating vectors associated with the second CPE grating region. 前記ＩＣＧ領域と関連付けられる一次格子ベクトルは、前記第１のＣＰＥ格子領域と関連付けられる前記一次格子ベクトル、および、前記第２のＣＰＥ格子領域と関連付けられる前記一次格子ベクトルと同一の大きさを有する、請求項７に記載の接眼レンズ導波管。 primary lattice vectors associated with the ICG regions have the same magnitude as the primary lattice vectors associated with the first CPE lattice region and the primary lattice vectors associated with the second CPE lattice region; 8. An eyepiece waveguide according to claim 7 . 前記接眼レンズ導波管は、拡張現実ディスプレイシステムのための接眼レンズの中に組み込まれる、請求項１に記載の接眼レンズ導波管。 2. The eyepiece waveguide of claim 1 , wherein the eyepiece waveguide is incorporated into an eyepiece for an augmented reality display system. 前記接眼レンズは、カラー画像を複数の深度平面に表示するように構成される、請求項９に記載の接眼レンズ導波管。 10. The eyepiece waveguide of claim 9 , wherein the eyepiece is configured to display color images in multiple depth planes. 拡張現実ディスプレイシステムのための接眼レンズ導波管であって、前記接眼レンズ導波管は、
第１の表面および第２の表面を有する光学的に透過性の基板と、
前記基板の前記表面のうちの１つ上または前記１つ内に形成される入力結合格子（ＩＣＧ）領域であって、前記ＩＣＧ領域は、光のビームを受け取り、誘導伝搬モードにおいて、前記ビームを前記基板の中に結合するように構成される、ＩＣＧ領域と、
前記基板の前記第１の表面上または前記第１の表面内に形成される第１の組み合わせられた瞳エクスパンダ－抽出器（ＣＰＥ）格子領域であって、前記第１のＣＰＥ格子領域は、前記ＩＣＧ領域からの前記光のビームを受け取るように位置付けられ、前記第１のＣＰＥ格子領域は、少なくとも２つの方向に周期性を呈する複数の回折特徴を備え、前記複数の回折特徴は、第１の相互作用を用いて、前記ビームの伝搬方向を改変し、第２の相互作用を用いて、前記ビームを前記接眼レンズ導波管から外部結合するように構成される、第１のＣＰＥ格子領域と
を備え、前記第１のＣＰＥ格子領域の前記複数の回折特徴は、相互に対して実質的に６０°の角度で配向される第１および第２の方向に周期性を呈し、
前記ＩＣＧ領域は、前記第１の方向および前記第２の方向の両方に対して実質的に６０°の角度で配向される第３の方向に周期性を呈する複数の回折特徴を備える、接眼レンズ導波管。 An eyepiece waveguide for an augmented reality display system, the eyepiece waveguide comprising:
an optically transmissive substrate having a first surface and a second surface;
An input coupling grating (ICG) region formed on or within one of said surfaces of said substrate, said ICG region receiving a beam of light and transmitting said beam in a guided propagation mode. an ICG region configured to bond into the substrate;
a first combined pupil expander-extractor (CPE) grating region formed on or within the first surface of the substrate, the first CPE grating region comprising: Positioned to receive the beam of light from the ICG region, the first CPE grating region comprises a plurality of diffractive features exhibiting periodicity in at least two directions, the plurality of diffractive features comprising a first a first CPE grating region configured to modify the direction of propagation of said beam using an interaction of and outcouple said beam from said eyepiece waveguide using a second interaction and wherein the plurality of diffractive features of the first CPE grating region exhibit periodicity in first and second directions oriented at angles of substantially 60° relative to each other;
The ICG region comprises a plurality of diffractive features exhibiting periodicity in a third direction oriented at an angle of substantially 60° with respect to both the first direction and the second direction. waveguide. 拡張現実ディスプレイシステムのための接眼レンズ導波管であって、前記接眼レンズ導波管は、
第１の表面および第２の表面を有する光学的に透過性の基板と、
前記基板の前記表面のうちの１つ上または前記１つ内に形成される入力結合格子（ＩＣＧ）領域であって、前記ＩＣＧ領域は、光のビームを受け取り、誘導伝搬モードにおいて、前記ビームを前記基板の中に結合するように構成される、ＩＣＧ領域と、
前記基板の前記第１の表面上または前記第１の表面内に形成される第１の組み合わせられた瞳エクスパンダ－抽出器（ＣＰＥ）格子領域であって、前記第１のＣＰＥ格子領域は、前記ＩＣＧ領域からの前記光のビームを受け取るように位置付けられ、前記第１のＣＰＥ格子領域は、少なくとも２つの方向に周期性を呈する複数の回折特徴を備え、前記複数の回折特徴は、第１の相互作用を用いて、前記ビームの伝搬方向を改変し、第２の相互作用を用いて、前記ビームを前記接眼レンズ導波管から外部結合するように構成される、第１のＣＰＥ格子領域と、
前記基板の前記第２の表面上または前記第２の表面内に形成される第２のＣＰＥ格子領域であって、前記第２のＣＰＥ格子領域は、第１の相互作用を用いて、前記ビームの伝搬方向を改変し、第２の相互作用を用いて、前記ビームを前記接眼レンズ導波管から外部結合するように構成される複数の回折特徴を備える、第２のＣＰＥ格子領域と
を備える、接眼レンズ導波管。 An eyepiece waveguide for an augmented reality display system, the eyepiece waveguide comprising:
an optically transmissive substrate having a first surface and a second surface;
An input coupling grating (ICG) region formed on or within one of said surfaces of said substrate, said ICG region receiving a beam of light and transmitting said beam in a guided propagation mode. an ICG region configured to bond into the substrate;
a first combined pupil expander-extractor (CPE) grating region formed on or within the first surface of the substrate, the first CPE grating region comprising: Positioned to receive the beam of light from the ICG region, the first CPE grating region comprises a plurality of diffractive features exhibiting periodicity in at least two directions, the plurality of diffractive features comprising a first a first CPE grating region configured to modify the direction of propagation of said beam using an interaction of and outcouple said beam from said eyepiece waveguide using a second interaction When,
A second CPE grating region formed on or within the second surface of the substrate, the second CPE grating region using a first interaction to direct the beam to a second CPE grating region comprising a plurality of diffractive features configured to alter the direction of propagation of and outcouple the beam from the eyepiece waveguide using a second interaction;
an eyepiece waveguide. 前記第１および第２のＣＰＥ格子領域は、同じである、請求項１２に記載の接眼レンズ導波管。 13. The eyepiece waveguide of claim 12 , wherein the first and second CPE grating regions are the same. 前記基板は、前記ビームが、前記誘導伝搬モードへと結合された後、前記ＩＣＧ領域と相互作用することを防止するために十分に大きい厚さを有する、請求項１２に記載の接眼レンズ導波管。 13. The eyepiece waveguide of claim 12 , wherein the substrate has a thickness sufficiently large to prevent the beam from interacting with the ICG region after being coupled into the guided propagation mode. tube. 前記ビームは、コリメートされ、５ｍｍ以下の直径を有する、請求項１１に記載の接眼レンズ導波管。 12. The eyepiece waveguide of claim 11 , wherein the beam is collimated and has a diameter of 5 mm or less. 前記光学的に透過性の基板は、平面である、請求項１１に記載の接眼レンズ導波管。 12. The eyepiece waveguide of claim 11 , wherein said optically transmissive substrate is planar. 前記接眼レンズ導波管は、拡張現実ディスプレイシステムのための接眼レンズの中に組み込まれる、請求項１１に記載の接眼レンズ導波管。 12. The eyepiece waveguide of claim 11 , wherein the eyepiece waveguide is incorporated into an eyepiece for an augmented reality display system. 前記接眼レンズは、カラー画像を複数の深度平面に表示するように構成される、請求項１７に記載の接眼レンズ導波管。 18. The eyepiece waveguide of claim 17 , wherein the eyepiece is configured to display color images in multiple depth planes. 拡張現実ディスプレイシステムのための接眼レンズ導波管であって、前記接眼レンズ導波管は、
光学的に透過性の基板と、
入力結合格子（ＩＣＧ）領域と、
前記基板の第１の側上に形成される第１の組み合わせられた瞳エクスパンダ－抽出器（ＣＰＥ）格子領域と
を備え、
前記ＩＣＧ領域は、複数の光の入力ビームのセットを受け取るように構成され、前記入力ビームのセットは、前記接眼レンズ導波管と関連付けられるｋ－空間環の中心に位置する視野（ＦＯＶ）形状を形成するｋ－ベクトルのセットと関連付けられ、
前記ＩＣＧ領域は、誘導ビームとして、それらを前記基板の中に結合するように、かつ少なくとも部分的に、前記ｋ－空間環内において、前記ＦＯＶ形状を第１の位置に平行移動させるように、前記入力ビームを回折するように構成され、
第１の相互作用を用いて、前記第１のＣＰＥ格子領域は、少なくとも部分的に、前記ｋ－空間環内において、前記ＦＯＶ形状を前記第１の位置から第２および第３の位置に平行移動させるように、前記誘導ビームを回折するように構成され、
第２の相互作用を用いて、前記第１のＣＰＥ格子領域は、前記ＦＯＶ形状を前記第２および第３の位置から前記ｋ－空間環の中心に平行移動させるように、前記誘導ビームを回折するように構成される、
接眼レンズ導波管。 An eyepiece waveguide for an augmented reality display system, the eyepiece waveguide comprising:
an optically transparent substrate;
an input coupling grating (ICG) region;
a first combined pupil expander-extractor (CPE) grating region formed on a first side of the substrate;
The ICG region is configured to receive a set of input beams of light, the set of input beams having a field-of-view (FOV) shape centered in a k-space annulus associated with the eyepiece waveguide. associated with a set of k-vectors forming
the ICG regions as guided beams to couple them into the substrate and at least partially translate the FOV shape to a first position within the k-space annulus; configured to diffract the input beam;
With a first interaction, the first CPE grating region at least partially parallels the FOV shape from the first position to second and third positions within the k-space annulus. configured to diffract the directed beam so as to move;
Using a second interaction, the first CPE grating region diffracts the stimulating beam to translate the FOV shape from the second and third positions to the center of the k-space ring. configured to
Eyepiece waveguide. 前記ｋ－空間環の中心、前記第１の位置、および前記第２の位置は、ｋ－空間内の第１の正三角形を定義する、請求項１９に記載の接眼レンズ導波管。 20. The eyepiece waveguide of claim 19, wherein the center of the k-space ring, the first location, and the second location define a first equilateral triangle in k-space. 前記ｋ－空間環の中心、前記第１の位置、および前記第３の位置は、ｋ－空間内の第２の正三角形を定義する、請求項２０に記載の接眼レンズ導波管。 21. The eyepiece waveguide of claim 20 , wherein the center of the k-space ring, the first location, and the third location define a second equilateral triangle in k-space. 前記ｋ－空間内の前記第１および第２の正三角形は、一辺を共有する、請求項２１に記載の接眼レンズ導波管。 22. The eyepiece waveguide of claim 21 , wherein said first and second equilateral triangles in said k-space share a side. 前記基板の第２の側上に形成される第２のＣＰＥ格子領域をさらに備え、
第１の相互作用を用いて、前記第２のＣＰＥ格子領域は、少なくとも部分的に、前記ｋ－空間環内において、前記ＦＯＶ形状を前記第１の位置から前記第２および第３の位置に平行移動させるように、前記誘導ビームを回折するように構成され、
第２の相互作用を用いて、前記第２のＣＰＥ格子領域は、前記ＦＯＶ形状を前記第２および第３の位置から前記ｋ－空間環の中心に平行移動させるように、前記誘導ビームを回折するように構成される、
請求項１９に記載の接眼レンズ導波管。 further comprising a second CPE grating region formed on a second side of said substrate;
Using a first interaction, the second CPE grating region moves, at least in part, the FOV shape from the first position to the second and third positions within the k-space annulus. configured to diffract the directed beam so as to translate;
Using a second interaction, the second CPE grating region diffracts the stimulating beam to translate the FOV shape from the second and third positions to the center of the k-space ring. configured to
20. An eyepiece waveguide according to claim 19 . 前記第２のＣＰＥ格子領域は、前記接眼レンズ導波管からの出力ビームの密度を増加させる、請求項２３に記載の接眼レンズ導波管。 24. The eyepiece waveguide of claim 23 , wherein the second CPE grating region increases the density of the output beam from the eyepiece waveguide. 前記第２のＣＰＥ格子領域は、少なくとも４倍、前記出力ビームの密度を増加させる、請求項２４に記載の接眼レンズ導波管。

25. The eyepiece waveguide of claim 24 , wherein said second CPE grating region increases the density of said output beam by a factor of at least 4.
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