JP2016122197A - プロジェクタ、ならびにシネマ、エンターテイメントシステム、ディスプレイを含む他の発光装置のためのレーザ光源の局所的調光 - Google Patents
プロジェクタ、ならびにシネマ、エンターテイメントシステム、ディスプレイを含む他の発光装置のためのレーザ光源の局所的調光 Download PDFInfo
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Abstract
【解決手段】レーザ光源束205からの光を、変調器225の変調面をカバーするように拡散させるスプレッダ210を有し、隣接する光源および/または周辺の光源からの光は、変調器225においてオーバラップする。レーザ光源束205が、様々に異なるエネルギー/輝度レベルでエネルギーを付与されることで、変調器225を照明する光は、それ自体、変調(局所的調光、ローカルディミング)される。
【選択図】図2
Description
図3は、本発明の一実施形態による光源束305およびリダイレクト・ブロック335の図である。図示のように、リダイレクト・ブロック335は、複数の光源(光源束305)からの光を受けて、個々の光源のビームを変調器320に向けてリダイレクトする、多重リダイレクト・ブロックである。このリダイレクトは、光学素子(例えば、光学素子330および332)によって提供される。光学素子は、例えば、反射器またはビームスプリッタ(例えば、分割ビームの一部分は変調器320に向けられ、その他の部分は第2の変調器に向けられる)(例えば、ある光ビームを通過させ、他の光ビームを同一または同様の光路に反射するように構成されたスプリッタ)とすることができる。光学素子は、該光学ブロックに埋め込まれたミラーまたは銀面とすることができる。また、光学素子は、全反射を生じさせる光学ブロックにおける模様(impression)または他の変化(permutation)とすることもできる。各光路に、1つよりも多くの光学素子(または反射器)を用いることができる。
本発明について、本明細書では、レーザ光で照明する場合に関して説明したが、本発明は、広帯域またはより広帯域の光源(例えば、LED、ナノチューブベースの光源など)を用いて実施することもできる。図面に示す本発明の好ましい実施形態についての説明では、明確にするために具体的な用語を用いている。しかしながら、本発明は、そのように選択された特定の用語に限定されるものではなく、具体的要素のそれぞれは、同様に機能するあらゆる技術的均等物を含むものと理解されるべきである。
Claims (16)
- プロジェクタであって、
変調装置と、
拡散器を含む少なくとも一つのスプレッダと、該スプレッダを照明するように配置された少なくとも一つのレーザ光源とを備えるレーザイメージングシステムであって、前記スプレッダを通過する光は、前記変調装置に向けられる、前記レーザイメージングシステムと、
画像のより暗い部分が変調される前記変調装置の領域を照明することになる光が画像のより明るい部分が変調される前記変調装置の領域を照明するようにリダイレクトされるように前記変調装置に向けられる光を変更するように構成されたリダイレクト機構とを備えるプロジェクタ。 - 前記レーザイメージングシステムは、前記スプレッダから出射する光に複数の点光源を示させるように構成され、各点光源は、変調面上の隣接する光の点がオーバラップ・パターンにおいて互いに拡散するような点広がり関数(PSF)を有し、前記変調面上の少なくとも一つの光の点が、全ての隣接する光の点の中央エリアを通過するように拡散し、かつ前記変調面上の少なくとも一つの隣接する光の点を超えた光の点の少なくとも一つの中央エリアを通過するように拡散する、請求項1に記載のプロジェクタ。
- 画像データおよび変調面上の光の点の異なる輝度レベルに基づいて前記変調装置にエネルギーを与えるように構成されたコントローラを備える請求項2に記載のプロジェクタ。
- 前記変調面上の隣接する光の点および隣接する光の点を超えた光の点の間のオーバラップ量は変化する、請求項2に記載のプロジェクタ。
- 前記変調面のエッジに比較して前記変調面の中央エリアにおいてオーバラップがより多い、請求項4に記載のプロジェクタ。
- 前記変調装置の各領域は、原色光のオーバラップを含むオーバラップを含む、請求項5に記載のプロジェクタ。
- 前記変調装置の各領域は、第1の原色光の空間オーバラップを含む第1の時間期間におけるオーバラップを含み、第1の原色光のオーバラップは、第2の原色光の第2の時間期間における空間オーバラップと時間的にオーバラップする、請求項4に記載のプロジェクタ。
- 前記変調装置のピクセルに対するエネルギー付与レベルは、前記変調装置を照明する光の光照射野シミュレーション(LFS)に少なくとも部分的に基づく、請求項1−7のいずれか1項に記載のプロジェクタ。
- 前記変調装置のピクセルに対するエネルギー付与レベルは、変調面上を滑らかに横断するように変化する、前記変調装置を照明する光のオーバラップ・パターンの光照射野シミュレーション(LFS)に少なくとも部分的に基づく、請求項1−7のいずれか1項に記載のプロジェクタ。
- レーザ光源は、異なる色の複数のレーザ光源を含む、請求項9に記載のプロジェクタ。
- レーザ光源は、広色域を共に形成する複数のレーザ光源を含む、請求項9に記載のプロジェクタ。
- 第2の変調装置を備える、請求項9に記載のプロジェクタ。
- 方法であって、
画像データに従って複数のレーザ光源に複数のエネルギー輝度レベルでエネルギーを付与するステップと、
前記複数のレーザ光源により放射された光をスプレッダに指向させるステップと、
レーザ光を拡散するステップと、
レーザ光が少なくとも一つの変調器の変調面上で光のオーバラップ・パターンを形成するステップであって、光のオーバラップ・パターンは、局所的に調光された光のパターンを含み、前記変調面上の全ての光は、前記変調面上の各隣接する光に拡散し、少なくとも一つの光は、各隣接する光の中央エリアを通過するように拡散し、かつ少なくとも一つの光と隣接していない光の中央エリアを通過するように拡散する、前記拡散するステップと、
画像データに従って画像の暗い領域を変調することになっている変調器の領域からの光を画像の明るい領域を変調することになっている変調器の領域にリダイレクトするステップ
を含む方法。 - 拡散光は、前記変調面上で滑らかに変化する光のパターンを形成する、請求項13に記載の方法。
- 前記変調面上の光の拡散は、前記変調面上を横断する拡散の量が変化し、オーバラップの量の分散は、前記変調面上を滑らかに横断するように変化する、請求項13に記載の方法。
- 前記変調面上の光の滑らかに変化するパターンの光照射野シミュレーションを形成するステップと、
前記光照射野シミュレーションおよび画像データに基づいて前記変調面の各ピクセルに対する変調量を計算するステップと
をさらに含む、請求項13−15のいずれか1項に記載の方法。
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EP3282697B1 (en) | 2022-06-08 |
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CN106200236A (zh) | 2016-12-07 |
US11146782B2 (en) | 2021-10-12 |
CN105611262A (zh) | 2016-05-25 |
EP2687017B1 (en) | 2017-06-21 |
JP6050413B2 (ja) | 2016-12-21 |
CN103430553A (zh) | 2013-12-04 |
US11683473B2 (en) | 2023-06-20 |
JP6298839B2 (ja) | 2018-03-20 |
JP2014513316A (ja) | 2014-05-29 |
JP6556880B2 (ja) | 2019-08-07 |
JP5945286B2 (ja) | 2016-07-05 |
JP2017045070A (ja) | 2017-03-02 |
US20140002514A1 (en) | 2014-01-02 |
CN105611262B (zh) | 2018-05-15 |
US20170013257A1 (en) | 2017-01-12 |
JP6416852B2 (ja) | 2018-10-31 |
US10165260B2 (en) | 2018-12-25 |
US20220078401A1 (en) | 2022-03-10 |
US20230300316A1 (en) | 2023-09-21 |
CN106200236B (zh) | 2018-07-20 |
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HK1222753A1 (zh) | 2017-07-07 |
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