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    • 10. 发明授权
    • Projector, projector system, and image correcting method
    • 投影仪,投影仪系统和图像校正方法
    • US08912977B2
    • 2014-12-16
    • US13638349
    • 2011-03-29
    • Yoshiho YanagitaFujio Okumura
    • Yoshiho YanagitaFujio Okumura
    • G09G5/00H04N9/31G03B17/54G03B21/14G03B21/00G03B21/56
    • G03B17/54G03B21/00G03B21/14G03B21/56H04N9/3129H04N9/3147H04N9/3185H04N9/3194
    • A projector that can solve a problem in which a projection image is disturbed due to deviation of incident positions of projection light to a screen is provided. Projection section 11 includes LD light emission section 111 and scanning section 112 that scans light emitted by LD light emission section 111 and projects the scanned light to the rear plane side of the screen. Control section 12 controls an amount of light emission of the light and a scanning angle of scanning section 112 based on an image signal so as to cause projection section 11 to project an image corresponding to the image signal to the screen. Control section 12 corrects an orientation of projection light corresponding to each pixel of the image projected from projection section 11 based on a refractive index of the light transmission member and a scanning angle of scanning section 112 so as to correct an incident position of the projection light on the screen.
    • 提供一种可以解决由于投影光的入射位置偏离到屏幕而使投影图像受到干扰的问题的投影仪。 投射部11包括LD发光部111和扫描部112,其扫描由LD发光部111发出的光,并将扫描光投射到屏幕的背面侧。 控制部分12基于图像信号控制光的发光量和扫描部分112的扫描角度,以使投影部分11将与图像信号对应的图像投影到屏幕。 控制部分12基于光传输部件的折射率和扫描部分112的扫描角度来校正与从投影部分11投影的图像的每个像素对应的投影光的取向,以校正投影光的入射位置 屏幕上。