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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。
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公开(公告)号：US20100253618A1
公开(公告)日：2010-10-07
申请号：US12751473
申请日：2010-03-31
IPC分类号： G09G5/00
CPC分类号： H04N9/3194 , G06F3/0423 , H04N9/3129 , H04N9/3147
摘要： A projector producing an imaginary input plane with high operability is provided. A projector according to an embodiment projects a VUI screen picture onto a desk, and projects a main projection screen picture to a wall. The projector includes a light receiving element. The light receiving element is arranged in a position where light emitted toward the desk (VUI screen picture) and reflected (or scattered) by an object near the desk enters. The projector calculates a position of the object based on light sensing timing by the light receiving element and light scan positions at various points in time. The projector changes a projected screen picture when it determines that object is simultaneously in contact with a plurality of portions of the VUI screen picture and at least one of contact positions moves.
摘要翻译： 提供了具有高可操作性的产生虚拟输入面的投影仪。 根据实施例的投影仪将VUI屏幕图像投影到桌面上，并将主投影屏幕图像投影到墙壁上。 投影仪包括光接收元件。 光接收元件被布置在朝向桌子发射的光（VUI屏幕图像）并被靠近桌子的物体反射（或散射）的位置进入。 投影仪根据光接收元件的光感测定时和各个时间点的光扫描位置来计算物体的位置。 当确定物体同时与VUI屏幕图像的多个部分接触并且接触位置中的至少一个移动时，投影仪改变投影屏幕图像。
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公开(公告)号：US20090189923A1
公开(公告)日：2009-07-30
申请号：US12358634
申请日：2009-01-23
CPC分类号： H04N5/74 , H04N9/3132
摘要： Disclosed is a laser projector to display an image having a predetermined number of gradations by a combination of n division gradations, each being set with a maximum luminance, comprising: a storage section to store a luminance value of each of the gradations, and division signals being associated with each other, each of the division signals corresponding to an intensity of each of the division gradations, and the division gradations being combined with each other to represent the luminance value; a determination section to determine the division signal of each of the division gradations corresponding to the luminance value of each pixel which constitutes the image; and a signal output section to divide a display period of the each pixel into n intervals, and to sequentially output the division signal of each of the division gradations to a light source in a predetermined order, in each of the intervals.
摘要翻译： 公开了一种激光投影机，其通过n个分级灰度的组合来显示具有预定数量的灰度的图像，每个分割灰度被设置为最大亮度，包括：存储部分，用于存储每个灰度的亮度值，以及除法信号 彼此相关联，每个分割信号对应于每个分割灰度的强度，并且分割灰度彼此组合以表示亮度值; 确定部分，用于确定与构成图像的每个像素的亮度值相对应的每个分割灰度的分割信号; 以及信号输出部分，用于将每个像素的显示周期划分为n个间隔，并且在每个间隔中以预定顺序顺序地将每个分割灰度的分割信号输出到光源。
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