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    • 1. 发明授权
    • Handheld vision based absolute pointing system
    • 基于手持视觉的绝对指向系统
    • US08907889B2
    • 2014-12-09
    • US12983554
    • 2011-01-03
    • John SweetserAnders Grunnet-JepsenKenneth Salsman
    • John SweetserAnders Grunnet-JepsenKenneth Salsman
    • G09G5/00G06F3/0346G06F3/03
    • G06F3/0325G06F3/0346
    • A method is described that involves identifying one or more images of respective one or more fixed markers. Each marker is positioned on or proximate to a display. The images appear on a pixilated sensor within a handheld device. The method also involves determining a location on, or proximate to, the display where the handheld device was pointed during the identifying. The method also involves sending from the handheld device information derived from the identifying of the one or more images of respective one or more fixed markers. The method also involves triggering action taken by electronic equipment circuitry in response to the handheld device's sending of a signal to indicate the action is desired.
    • 描述了涉及识别相应的一个或多个固定标记的一个或多个图像的方法。 每个标记位于显示器上或靠近显示器。 图像出现在手持设备中的像素化传感器上。 该方法还涉及在识别期间确定手持设备指向的显示器上或附近的位置。 该方法还涉及从手持设备发送从识别相应的一个或多个固定标记的一个或多个图像得到的信息。 该方法还涉及响应于手持设备发送信号以指示期望的动作来触发由电子设备电路采取的动作。
    • 5. 发明申请
    • Apparatus for an optical circuit having a flat wavelength response
    • 具有平坦波长响应的光电路的装置
    • US20060002653A1
    • 2006-01-05
    • US10881431
    • 2004-06-30
    • Anders Grunnet-JepsenJohn Sweetser
    • Anders Grunnet-JepsenJohn Sweetser
    • G02B6/26G02B6/42
    • G02B6/29317G02B6/29353G02B6/29382
    • Optical circuits having a flat wavelength response are disclosed. A disclosed apparatus includes a first optical coupler, first and second optical waveguides optically coupled to the first optical coupler and a second optical coupler optically coupled to the first and second optical waveguides. The first optical coupler couples input light into a first portion and a second portion. The first and second optical waveguides receive the first and second portions of input light from the first optical coupler, respectively the second optical coupler couples the first portion of input light from the first optical waveguide and the second portion of input light from the second optical waveguide. The second optical waveguide may effect a fixed phase difference of one-half wavelength relative to the input light. The first and second optical couplers may have first and second wavelength dependences, respectively, where the second wavelength dependence is opposite the first wavelength dependence.
    • 公开了具有平坦波长响应的光电路。 所公开的设备包括第一光耦合器,光学耦合到第一光耦合器的第一和第二光波导以及光耦合到第一和第二光波导的第二光耦合器。 第一光耦合器将输入光耦合到第一部分和第二部分中。 第一和第二光波导接收来自第一光耦合器的输入光的第一和第二部分,第二光耦合器分别耦合来自第一光波导的输入光的第一部分和来自第二光波导的输入光的第二部分 。 第二光波导可以实现相对于输入光的二分之一波长的固定相位差。 第一和第二光耦合器可以分别具有第一和第二波长依赖性,其中第二波长依赖性与第一波长依赖性相反。
    • 7. 发明申请
    • Segmented complex diffraction gratings
    • 分段复杂衍射光栅
    • US20050231804A1
    • 2005-10-20
    • US11145251
    • 2005-06-03
    • Thomas MossbergMichael MunroeAnders Grunnet-JepsenAlan JohnsonEric Maniloff
    • Thomas MossbergMichael MunroeAnders Grunnet-JepsenAlan JohnsonEric Maniloff
    • G02B5/18G02B6/34G02B27/42G02B27/44G02B27/46
    • G02B5/1823G02B5/1819G02B6/29311G02B27/4244H04J14/005
    • A structure (i.e. a segmented grating) which applies a designated complex-valued spectral filtering function to the input optical field and emits a filtered version of the input field in an output direction and a method for making such a structure. The segmented gratings fabricated in accordance with the present invention consist of a series of spatially distinct subgratings arrayed end to end. Each subgrating possesses a periodic array of diffraction structures (lines or more general elements). The overall transfer function of the segmented grating is determined by controlling (a) the spatial periodicity or frequency of each subgrating, (b) the amplitude of each subgrating, (c) the spacing between the last diffraction structure (or line) on each subgrating and the first diffraction structure (or line) of the successive subgrating, and (d) the optical path length and transparency through each subgrating, or each subgrating plus additional material layers utilized to control optical path length and transparency.
    • 一种结构(即,分段光栅),其向输入光场施加指定的复值频谱滤波函数,并且在输出方向上发射输入场的滤波版本以及用于制造这种结构的方法。 根据本发明制造的分段光栅由端到端排列的一系列空间上不同的亚格子组成。 每个子格栅具有衍射结构的周期性阵列(线或更一般的元素)。 通过控制(a)每个子格栅的空间周期或频率,(b)每个亚格子化的幅度,(c)每个亚格子化的最后衍射结构(或线)之间的间距来确定分段光栅的总传递函数 以及(d)通过每个亚格子化的光路长度和透明度,或每个亚光加上用于控制光程长度和透明度的附加材料层的第一衍射结构(或线)。
    • 8. 发明授权
    • Measuring optical phase
    • 测量光学相位
    • US06765681B1
    • 2004-07-20
    • US10119501
    • 2002-04-10
    • John N. SweetserAnders Grunnet-Jepsen
    • John N. SweetserAnders Grunnet-Jepsen
    • G01B902
    • G01M11/0264G01M11/0271
    • The phase (and amplitude) of a wave front may be accurately measured using knowledge of the wave front of an optical field generated by an optical element, permitting the determination of the spatial transfer function of that optical element. As a device under test is scanned across an aperture plate having slits, variations in the relative amplitude and phase of light passing through the slits are affected by the optical properties of the device under test, in turn affecting the interference pattern at a detector. Changes in the amplitude and phase of the detected signal are directly and uniquely related to the transfer function of the device under test.
    • 可以使用光学元件产生的光场的波前的知识来精确地测量波前的相位(和幅度),从而允许确定该光学元件的空间传递函数。 由于被测设备被扫描穿过具有狭缝的光阑,因此通过狭缝的光的相对幅度和相位的变化受被测设备的光学特性的影响,进而影响检测器处的​​干涉图案。 检测到的信号的幅度和相位的变化与被测器件的传递函数直接且唯一相关。