公开(公告)号：US20090244673A1

公开(公告)日：2009-10-01

申请号：US12408305

申请日：2009-03-20

申请人： Seiji TAKEMOTO ,  Yutaka TAKAHASHI ,  Hiroshi NISHIGAKI ,  Kenji NAGASHIMA

发明人： Seiji TAKEMOTO ,  Yutaka TAKAHASHI ,  Hiroshi NISHIGAKI ,  Kenji NAGASHIMA

IPC分类号： G02B26/10

CPC分类号： H04N9/317 ,  G02B13/0005 ,  G02B26/085 ,  G02B26/105 ,  G03B21/147 ,  H04N9/3129

摘要： Disclosed is a projection image display apparatus to display an image by projecting a light from a light source to a screen including a scan mirror to scan the light from the light source by vibrating in a sine vibration manner at least in an one-dimensional direction and a correction lens which is disposed between the scan mirror and the screen and which corrects a deflection angle of the light scanned by the scan mirror at least in the one-dimensional direction, and the correction lens carries out a correction so that the larger a scan angle of the scan mirror is, the larger the deflection angle is to be by the correction.

摘要翻译： 公开了一种投影图像显示装置，用于通过将来自光源的光投射到包括扫描镜的屏幕来显示图像，以至少在一维方向上以正弦振动方式进行振动来扫描来自光源的光;以及 校正透镜，其设置在扫描镜和屏幕之间，并且至少在一维方向上校正由扫描反射镜扫描的光的偏转角，并且校正透镜执行校正，使得较大的扫描 扫描镜角度越大，偏转角越大。

公开(公告)号：US20100006741A1

公开(公告)日：2010-01-14

申请号：US12485614

申请日：2009-06-16

申请人： Ken NISHIOKA ,  Atsuya HIRANO ,  Seiji TAKEMOTO ,  Atsuhiko CHIKAOKA

发明人： Ken NISHIOKA ,  Atsuya HIRANO ,  Seiji TAKEMOTO ,  Atsuhiko CHIKAOKA

IPC分类号： G01J1/20

CPC分类号： H04N9/3164 ,  H04N9/3129

摘要： A deviation of an optic axis of a laser projector is detected, and the deviation is corrected. Laser projector's CPU executes: commanding a laser beam source of one color, out of laser beam sources of three colors, to emit a laser beam; shutting off the laser when sensing that the laser beam is received in a light-receiving region; applying a laser of a color to be detected as to the presence or absence of a deviation of the axis until its reception in the light-receiving region is sensed; keeping time starting when light reception in the light-receiving region is sensed and ending when light reception in a light-receiving region adjacent thereto is sensed; calculating a relative time difference of each of the colors with respect to a reference color; and correcting a light emission timing of the laser beam source of each of the color, based on the calculated time.

摘要翻译： 检测到激光投影仪的光轴的偏差，并且校正偏差。 激光投影机的CPU执行：从三种颜色的激光束源中指定一种颜色的激光束源，以发射激光束; 当感测到在光接收区域中接收到激光束时，关闭激光器; 对要检测的颜色的激光施加到轴的偏移的存在或不存在，直到感测到在光接收区域中的接收为止; 在感光区域中的光接收被感测时开始保持时间，并且当感测到与其相邻的光接收区域中的光接收时结束; 计算每个颜色相对于参考颜色的相对时间差; 以及基于所计算的时间来校正每种颜色的激光束源的发光定时。