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    • 8. 发明授权
    • Projector, image projection method, and head-up display device using the projector
    • 投影仪,图像投影方法和使用投影机的平视显示设备
    • US08648904B2
    • 2014-02-11
    • US12431244
    • 2009-04-28
    • Yukiko HamanoRyosuke KasaharaToshiyuki Kawasaki
    • Yukiko HamanoRyosuke KasaharaToshiyuki Kawasaki
    • H04N7/00
    • H04N9/3129G03B21/006H04N9/317
    • A projector projecting an image on an object by scanning the object with a light beam includes a light source; a divergence angle converter converting the divergence angle of the light beam; a light deflector deflecting the light beam in a light beam scanning direction and a direction perpendicular to the light beam scanning direction; alight deflector drive controller controlling the light deflector to form the focused light spots at the respective pixel positions of the object on the basis of positional data for the pixels; a light amount controller controlling light amount of the light beam on the basis of luminance data for the pixels; and an image processor correcting the luminance data on the basis of previously obtained deterioration data of the projected image and outputting the corrected luminance data to the light amount controller while outputting the positional data to the light deflector drive controller.
    • 通过用光束扫描物体来投影物体上的图像的投影仪包括光源; 变换所述光束的发散角的发散角转换器; 光偏转器使光束在光束扫描方向和垂直于光束扫描方向的方向上偏转; 控制所述光偏转器的导光板驱动控制器,基于所述像素的位置数据,在所述物体的各个像素位置处形成聚焦光点; 光量控制器,其基于所述像素的亮度数据来控制所述光束的光量; 以及图像处理器,基于预先获得的投影图像的劣化数据校正亮度数据,并将修正的亮度数据输出到光量控制器,同时将位置数据输出到导光板驱动控制器。
    • 10. 发明授权
    • Optical recording medium tilt compensation device, tilt compensation method, and optical information recording apparatus
    • 光记录介质倾斜补偿装置,倾斜补偿方法和光信息记录装置
    • US07577070B2
    • 2009-08-18
    • US11373992
    • 2006-03-14
    • Toshiyuki KawasakiHideaki Hirai
    • Toshiyuki KawasakiHideaki Hirai
    • G11B15/62G11B5/58G11B17/32
    • G11B7/0956
    • An optical recording medium tilt compensation device having a tilt compensation unit is disclosed that is able to compensate for a tilt error in servo control when recording or reproducing data in an optical recording medium. The optical recording medium tilt compensation device includes an object lens that condenses light from a light source on a recording surface of an optical recording medium; an object lens tilt actuator that controls a tilt of the object lens; an object lens tilt sensor that detects a tilt of the object lens; an optical recording medium tilt sensor that detects a tilt of the optical recording medium; a control unit that controls the tilt of the object lens in accordance with a tilt value from the optical recording medium tilt sensor so that an aberration of the spot condensed on the recording surface is minimum by driving the object lens tilt actuator; a gain variable unit that changes the magnitude of an output signal from the object lens tilt sensor or the optical recording medium tilt sensor.
    • 公开了一种具有倾斜补偿单元的光记录介质倾斜补偿装置,其能够补偿在光记录介质中记录或再现数据时的伺服控制中的倾斜误差。 光记录介质倾斜补偿装置包括将来自光源的光聚光在光记录介质的记录表面上的物镜; 控制物镜倾斜的物镜倾斜致动器; 物镜倾斜传感器,其检测物镜的倾斜; 光学记录介质倾斜传感器,其检测光学记录介质的倾斜; 控制单元,其根据来自光学记录介质倾斜传感器的倾斜值来控制物镜的倾斜,使得通过驱动物镜倾斜致动器使聚集在记录表面上的光斑的像差最小; 增益变量单元,其改变来自物镜倾斜传感器或光记录介质倾斜传感器的输出信号的幅度。