PROJECTOR

To reduce a speckle while suppressing an increase in size of a configuration.SOLUTION: A projector of the present disclosure comprises: a light source unit for emitting light that is a source of illumination light; a projection optical system for projecting a projection image generated on the basis...

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1. Verfasser: TAJIRI SHINICHIRO
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To reduce a speckle while suppressing an increase in size of a configuration.SOLUTION: A projector of the present disclosure comprises: a light source unit for emitting light that is a source of illumination light; a projection optical system for projecting a projection image generated on the basis of illumination light to a projection plane; a mirror array device having a plurality of mirrors on which the illumination light is incident, for deflecting the illumination light toward the projection optical system by changing a tilt angle of each mirror on the basis of an image signal and generating a projection image from the illumination light; and a tilt angle control unit for controlling the tilt angle of each mirror when deflecting incident light toward the projection optical system by switching it to a reference tilt angle and one or a plurality of non-reference tilt angles different from the reference tilt angle within a prescribed period on the basis of the image signal.SELECTED DRAWING: Figure 8 【課題】構成の大型化を抑制しつつ、スペックルを低減する。【解決手段】本開示のプロジェクタは、照明光の元となる光を発する光源部と、照明光に基づいて生成された投影画像を投影面に投影する投影光学系と、照明光が入射する複数のミラーを有し、画像信号に基づいて各ミラーのチルト角度を変化させることによって照明光を投影光学系に向けて偏向し、照明光から投影画像を生成するミラーアレイデバイスと、入射した光を投影光学系に向けて偏向させる場合の各ミラーのチルト角度を、画像信号に基づいて所定の期間内で、基準チルト角度と、基準チルト角度とは異なる1または複数の非基準チルト角度とに切り替え制御するチルト角度制御部とを備える。【選択図】図8