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公开(公告)号:US20090085869A1
公开(公告)日:2009-04-02
申请号:US12282682
申请日:2007-03-02
IPC分类号: G06F3/033
CPC分类号: G01S5/163 , G06F3/0308 , G06F3/03543
摘要: Pointing device (2) comprising two light sources (X1,X2) symmetrically arranged along a first axis (X) and two light sources (Y1,Y2) symmetrically arranged along a second axis (Y) perpendicular to the first axis (X). The pointing device (2) is used in a system comprising a light detector (4) near a screen and calculation means to determine where a user is pointing the device in relation to the screen. The light sources point in substantially the same direction along a third axis (Z) perpendicular to the first axis (X) and second axis (Y). The pointing device comprising shielding means (6) for shielding more light emitted by one of the light sources than light emitted by the other light sources when the pointing device (2) is pointed away from the detector (4), wherein the shielding means (6) are arranged substantially symmetrically with respect to the light sources (X1,X2).
摘要翻译: 指向装置(2)包括沿着第一轴线(X)对称布置的两个光源(X1,X2)和沿着垂直于第一轴线(X)的第二轴线(Y))对称布置的两个光源(Y1,Y2)。 指示装置(2)用于包括靠近屏幕的光检测器(4)和计算装置的系统,以确定用户相对于屏幕指向设备的位置。 光源沿垂直于第一轴线(X)和第二轴线(Y)的第三轴线(Z)指向大致相同的方向。 所述指示装置包括屏蔽装置(6),用于当所述指示装置(2)远离所述检测器(4)时,屏蔽由所述光源中的一个发射的更多的光,而不是由所述其它光源发射的光,其中所述屏蔽装置 6)相对于光源(X1,X2)大致对称地布置。
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公开(公告)号:US20090128815A1
公开(公告)日:2009-05-21
申请号:US12282667
申请日:2007-03-02
CPC分类号: G06F3/0325 , G06F3/0308 , G06F3/0346
摘要: A roll detection system is disclosed for detecting a roll angle of a light emitting apparatus around a longitudinal axis thereof. The light emitting apparatus preferably is a pointing device (2). The system furthermore comprises a light detecting arrangement (4) for detecting light emitted by the pointing device (2) and means for determining where the pointing device is pointed. The pointing device (2) comprises at least a first (X1) and a second light source (Y1). The first (X1) and second light source (Y1) emit light with a different polarization orientation. The light detecting arrangement (4) is equipped with a polarization filter (3). The orientation of the polarization of the light emitted by the first (X1) and second light source (Y1) differs by an angle unequal to 90°. With the system the roll angle of the pointing device (2) can be determined for a large angle range.
摘要翻译: 公开了用于检测围绕其纵向轴线的发光装置的侧倾角的卷检测系统。 发光装置优选地是指示装置(2)。 该系统还包括用于检测指示装置(2)发射的光的光检测装置(4)和用于确定指示装置指向的装置。 指示装置(2)至少包括第一(X1)和第二光源(Y1)。 第一(X1)和第二光源(Y1)以不同的偏振方向发光。 光检测装置(4)配备有偏振滤光器(3)。 由第一(X1)和第二光源(Y1)发射的光的偏振方向不同于不等于90°的角度。 利用该系统,可以针对大的角度范围确定指示装置(2)的滚动角度。
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