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    • 5. 发明授权
    • Coordinate position detecting method and display apparatus using the same
    • 坐标位置检测方法及使用其的显示装置
    • US06529854B2
    • 2003-03-04
    • US09840189
    • 2001-04-24
    • Hiroshi KidaMasayoshi MurayamaMasaaki SaitoTsutomu Ohtani
    • Hiroshi KidaMasayoshi MurayamaMasaaki SaitoTsutomu Ohtani
    • G01C1700
    • G06F3/0421
    • A coordinate position detecting method uses a plurality of light emitting elements and a plurality of light receiving elements located on mutually opposite sides, all the elements being arranged at a predetermined interval in horizontal and vertical directions, with each pair of mutually opposed light emitting element and light receiving element forming a light beam path, such that the coordinate position of a light blocking object can be detected once the light beam path is blocked. The method comprises: storing N previous coordinate datas obtained when detecting a movement of the light blocking ojecte, using n (1≦n≦N) coordinate datas of the N previous coordinate datas to calculate a coordinate position of the light blocking object; and changing the number of the coordinate datas for use in calculating the coordinate position, in accordance with a speed of the movment of the light blocking object.
    • 坐标位置检测方法使用多个发光元件和位于相互相对的两侧的多个光接收元件,所有元件以水平和垂直方向以预定间隔布置,每对相互相对的发光元件和 光接收元件形成光束路径,使得一旦光束路径被阻挡就可以检测到遮光物体的坐标位置。 该方法包括:使用N个先前坐标数据的n(1 <= n <= N)坐标数据来存储当检测到光阻止物体的运动时获得的N个先前坐标数据,以计算遮光对象的坐标位置; 以及根据遮光对象的移动速度来改变用于计算坐标位置的坐标数据的数量。
    • 9. 发明授权
    • Projection type display apparatus having a light source device with improved light utilization efficiency
    • 具有提高光利用效率的光源装置的投射型显示装置
    • US08434876B2
    • 2013-05-07
    • US12746828
    • 2009-10-21
    • Kuniko KojimaHiroshi Kida
    • Kuniko KojimaHiroshi Kida
    • G03B21/26
    • G03B21/14G03B21/2013G03B21/2053G03B21/2066H04N9/3152H04N9/3164
    • A projection type display apparatus having a long-life light source device with high light utilization efficiency includes first and second light source lamps; a light intensity equalizing element; first and second bending mirrors; an image display element modulating a light flux emitted from the light intensity equalizing element and converting it into image light; and a projection optical system projecting the image light on a screen; and the first light source lamp, the second light source lamp, the first bending mirror and the second bending mirror are arranged so that a first optical axis of the first light source lamp disagrees with a second optical axis of the second light source lamp and a first distance between the first bending mirror and an incidence end differs from a second distance between the second bending mirror and the incidence end.
    • 具有高光利用效率的长寿命光源装置的投影型显示装置包括第一和第二光源灯; 光强均衡元件; 第一和第二弯曲镜; 调制从光强均衡元件发射的光束并将其转换为图像光的图像显示元件; 以及将图像光投影在屏幕上的投影光学系统; 并且第一光源灯,第二光源灯,第一弯曲镜和第二弯曲镜布置成使得第一光源灯的第一光轴与第二光源灯的第二光轴不一致,并且 第一弯曲镜与入射端之间的第一距离与第二弯曲镜与入射端之间的第二距离不同。