JP7145287B2 - 多焦点表示システムおよび方法 - Google Patents
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- JP7145287B2 JP7145287B2 JP2021102212A JP2021102212A JP7145287B2 JP 7145287 B2 JP7145287 B2 JP 7145287B2 JP 2021102212 A JP2021102212 A JP 2021102212A JP 2021102212 A JP2021102212 A JP 2021102212A JP 7145287 B2 JP7145287 B2 JP 7145287B2
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/50—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels
- G02B30/52—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels the 3D volume being constructed from a stack or sequence of 2D planes, e.g. depth sampling systems
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
- G02B26/103—Scanning systems having movable or deformable optical fibres, light guides or waveguides as scanning elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
- H04N13/344—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] with head-mounted left-right displays
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/366—Image reproducers using viewer tracking
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/388—Volumetric displays, i.e. systems where the image is built up from picture elements distributed through a volume
- H04N13/395—Volumetric displays, i.e. systems where the image is built up from picture elements distributed through a volume with depth sampling, i.e. the volume being constructed from a stack or sequence of 2D image planes
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Description
本明細書は、例えば、以下の項目も提供する。
(項目1)
拡張現実を表示する方法であって、
画像データの1つまたはそれを上回るフレームを提供するステップと、
前記画像データの1つまたはそれを上回るフレームと関連付けられた光をある走査パターンで走査するステップと、
前記画像データの1つまたはそれを上回るフレームが、複数の切替可能画面のうちの1つ上に合焦されるように、可変焦点要素(VFE)を通して、前記走査された光の焦点を変動させるステップと、
前記複数の切替可能画面のうちの1つを通して、前記合焦された光を拡散させるステップであって、前記切替可能画面は、異なる視認距離に対応する、ステップと、
を含む、方法。
(項目2)
前記焦点は、フレームベースで変動される、項目1に記載の方法。
(項目3)
前記画像データの1つまたはそれを上回るフレームは、時系列様式で提示される、項目1に記載の方法。
(項目4)
前記複数の切替可能画面は、切替可能高分子分散型液晶(PDLC)拡散器を備える、項目1に記載の方法。
(項目5)
前記複数の切替可能画面は、拡散状態と透明状態との間で切り替わる、項目1に記載の方法。
(項目6)
前記複数の切替可能画面は、フレームベースで拡散状態と透明状態との間で切り替えられることができる、項目5に記載の方法。
(項目7)
前記VFEは、小開口と関連付けられる、項目1に記載の方法。
(項目8)
前記走査された光の走査場内の走査されたスポットの位置の関数として、前記VFEの屈折力を変動させるステップをさらに含む、項目1に記載の方法。
(項目9)
前記VFEの信号を駆動させ、前記走査された光の走査パターンに一致させるステップをさらに含む、項目1に記載の方法。
(項目10)
画像の第1の部分は、前記画像の周縁と異なるように合焦される、項目1に記載の方法。
(項目11)
前記VFEの駆動信号を調節し、前記光変調器の走査パターンに一致させ、それによって、平坦画像場を生成するステップをさらに含む、項目1に記載の方法。
(項目12)
前記方法ステップを実装するための手段を有するシステムとして実装される、項目1-11に記載の方法。
(項目13)
前記方法ステップを実行するための実行可能コードを有するコンピュータ使用可能記憶媒体を備える、コンピュータプログラム製品として実装される、項目1-11に記載の方法。
(項目14)
拡張現実を表示する方法であって、
画像データの1つまたはそれを上回るフレームを提供するステップと、
前記画像データの1つまたはそれを上回るフレームと関連付けられた光をある走査パターンで走査するステップと、
前記走査パターンに従って、可変焦点要素(VFE)の駆動信号を調節し、前記画像データの1つまたはそれを上回るフレームの場曲率を補正し、実質的に平坦な画像場を生成するステップと、
を含む、方法。
(項目15)
前記駆動信号は、画像の第1の部分が前記画像の第2の部分と異なるよう合焦されるように調節される、項目14に記載の方法。
(項目16)
前記VFEは、フレームベースで焦点を切り替える、項目14に記載の方法。
(項目17)
ある焦点範囲を通して画像データのフレームを駆動させるステップをさらに含む、項目14に記載の方法。
(項目18)
前記VFEは、前記走査された光を複数の切替可能画面のうちの1つ上に合焦させ、前記複数の切替可能画面は、異なる視認距離に対応する、項目14に記載の方法。
(項目19)
画像データの第1のフレームは、第1の焦点範囲を通して掃引され、画像データの第2のフレームは、第2の焦点範囲を通して掃引され、前記第1の焦点範囲は、前記第2の焦点範囲と異なる、項目14に記載の方法。
(項目20)
前記VFEの駆動信号は、正弦波に従って調節される、項目14に記載の方法。
(項目21)
前記VFEの駆動信号は、三角波に従って調節される、項目14に記載の方法。
(項目22)
前記方法ステップを実装するための手段を有するシステムとして実装される、項目14-21に記載の方法。
(項目23)
前記方法ステップを実行するための実行可能コードを有するコンピュータ使用可能記憶媒体を備える、コンピュータプログラム製品として実装される、項目14-21に記載の方法。
Claims (13)
- 拡張現実ディスプレイシステムであって、
開口を備える可変焦点要素(VFE)であって、前記VFEは、走査デバイスによって生成される場曲率を低減させるように構成されている、VFEと、
前記拡張現実ディスプレイシステムの光軸に沿ってスタックされた複数の切替可能画面であって、前記複数の切替可能画面は、動作中の一時点において拡散状態の第1の切替可能画面および透明状態の第2の切替可能画面を備え、前記VFEは、さらに、画像データと関連付けられた光を対応する視認距離に拡散させる前記複数の切替可能画面の中で前記画像データの1つまたはそれを上回るフレームを可変に合焦させるように構成されており、前記VFEは、前記画像データの有効開口数を増加させるように前記複数の切替可能画面に動作可能に結合されている、複数の切替可能画面と
を備える、拡張現実ディスプレイシステム。 - 前記複数の切替可能画面の各々は、視認者から異なる視認距離を占有する、請求項1に記載の拡張現実ディスプレイシステム。
- 前記画像データは、前記複数の切替可能画面の中の切替可能画面の数に等しい数の画像スライスに分割される、請求項1に記載の拡張現実ディスプレイシステム。
- 前記複数の切替可能画面は、切替可能高分子分散型液晶(PDLC)拡散器を備える、請求項1に記載の拡張現実ディスプレイシステム。
- 前記複数の切替可能画面は、拡散状態と透明状態との間で切り替わる、請求項1に記載の拡張現実ディスプレイシステム。
- 前記複数の切替可能画面のうちの1つの切替可能画面は、前記拡散状態に切り替えられ、残りの数の画面は、前記透明状態に切り替えられる、請求項5に記載の拡張現実ディスプレイシステム。
- 前記複数の切替可能画面は、フレームベースで前記拡散状態と前記透明状態との間で切り替えられる、請求項5に記載の拡張現実ディスプレイシステム。
- 前記VFEは、3mmのサイズを有する開口と関連付けられる、請求項1に記載の拡張現実ディスプレイシステム。
- 前記走査デバイスは、前記画像データの前記1つまたはそれを上回るフレームをある走査パターンで走査する、請求項1に記載の拡張現実ディスプレイシステム。
- 前記VFEの駆動信号は、前記走査パターンの関数として変動させられる、請求項9に記載の拡張現実ディスプレイシステム。
- 前記VFEは、前記画像データの前記1つまたはそれを上回るフレームの場曲率を平坦化する、請求項10に記載の拡張現実ディスプレイシステム。
- 前記VFEの屈折力は、前記走査デバイスの走査場内の走査されたスポットの位置の関数として変動させられる、請求項10に記載の拡張現実ディスプレイシステム。
- 前記VFEは、前記光の中心を第1の屈折力で合焦させ、前記光の周縁を第2の屈折力で合焦させるように構成されており、前記第1の屈折力は前記第2の屈折力と異なる、請求項10に記載の拡張現実ディスプレイシステム。
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