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    • 32. 发明申请
    • LIGHT SOURCE TRACKER
    • 光源跟踪器
    • WO2009076394A1
    • 2009-06-18
    • PCT/US2008/086148
    • 2008-12-10
    • MOSER, Mark, K.
    • MOSER, Mark, K.
    • G01C21/02G01C21/24G01J1/20
    • G01S3/7862F24S20/70F24S25/12F24S30/45F24S30/48F24S50/20F24S2030/115Y02E10/47
    • A tracking device for automatically following a moving light source that is detectable in the presence of ambient light. A carrier platform including one or more radiant energy conversion devices and a sensor array is mounted to an upright support column with a universal joint. Three independently-operated, linear actuators are equally angularly spaced about the support column with an upper end connected to the carrier platform with a universal hinge and a lower end connected to a floating base with a spherical hinge. A sensor array carried by the carrier platform includes a primary sensor associated with each actuator. During operation, when a primary sensor is not receiving direct radiant energy, the actuator retracts, and when it is receiving radiant energy directly, the actuator extends. The result is that the platform will directly track the sun across the horizon.
    • 用于自动跟踪在环境光的存在下可检测的移动光源的跟踪装置。 包括一个或多个辐射能量转换装置和传感器阵列的载体平台通过万向接头安装到立式支撑柱上。 三个独立操作的线性致动器在支撑柱上同等角度间隔开,上端通过铰链连接到承载平台,下端连接到具有球形铰链的浮动底座。 由载体平台承载的传感器阵列包括与每个致动器相关联的主传感器。 在运行过程中,当主传感器没有接收到直接的辐射能量时,执行机构缩回,并且当其直接接收辐射能量时,致动器延伸。 结果是平台将直接跟踪地平线上的太阳。
    • 35. 发明申请
    • NAVIGATION SYSTEM AND METHOD USING MODULATED CELESTIAL RADIATION SOURCES
    • 导航系统和使用调制的CELESTIAL辐射源的方法
    • WO2007008195A1
    • 2007-01-18
    • PCT/US2005/024121
    • 2005-07-06
    • UNIVERSITY OF MARYLANDSHEIKH, Suneel
    • SHEIKH, Suneel
    • G01C21/02G01C21/10G01C21/16G01C21/20G04B49/00G01S1/44G01B11/03G01B11/14
    • G01S11/12G01C21/02G01S5/16
    • A system and method for navigation utilizes sources of modulated celestial radiation. A spacecraft, satellite, or other vehicle (12) has one or more modulated radiation sensors (22a-22x) mounted thereto for detecting a modulated signal (14) generated by one or more pulsars or other celestial objects (16). A timer (24) measures the pulse time of arrival at a respective pulse sensor (22a­22x) by comparing the pulse signal (14) with a known pulse profile, and a processor (30) calculates a timing difference between the measured pulse time of arrival at sensor (22a-22x) with a calculated pulse time of arrival at a selected reference point (100). The positions and pulse profile characteristics of the pulsars (16) are stored in a digital memory (34) and combining the calculated time difference with the known positions of pulsars (16), the navigational parameters, such as position, velocity, and attitude, for spacecraft (12) with ,respect to the selected localized reference point (100) can be calculated.
    • 用于导航的系统和方法利用调制的天体辐射源。 航天器,卫星或其他车辆(12)具有安装在其上的一个或多个调制辐射传感器(22a-22x),用于检测由一个或多个脉冲星或其他天体(16)产生的调制信号(14)。 计时器(24)通过将脉冲信号(14)与已知的脉冲轮廓进行比较来测量相应的脉搏传感器(22a­ 22x)的脉搏到达时间,并且处理器(30)计算测量的脉搏时间 到达传感器(22a-22x),计算出的到达选定参考点(100)的脉冲时间。 脉冲星(16)的位置和脉冲轮廓特征存储在数字存储器(34)中,并将计算出的时间差与脉冲星(16)的已知位置,导航参数(例如位置,速度和姿态) 对于航天器(12)而言,可以计算出所选定的局部参考点(100)。
    • 36. 发明申请
    • ASYMETRIC, THREE-DIMENSIONAL, NON-IMAGING, LIGHT CONCENTRATOR
    • 三维,三维,非成像,光集中器
    • WO2006041943A2
    • 2006-04-20
    • PCT/US2005/035866
    • 2005-10-04
    • RESIDENTIAL RENEWABLESLICHY, Joseph, I.
    • LICHY, Joseph, I.
    • G01J1/20G01C21/02G01C21/24G02B5/10G02B5/08
    • G02B27/0994F24S23/00F24S23/80G01J1/04G01J1/0422G01J1/0474G02B19/0028G02B19/0042H01L31/0543H01L31/0547Y02E10/44Y02E10/52
    • A radiant energy concentrator (100) of sunlight adapted for use with a photovoltaic cell (116). The radiant energy concentrator has a hollow first stage (110) formed by two pairs of facing reflective sides (110N-110S, 110W-110E) curved to different parabolas. The first stage (110) is optically coupled to a solid second stage (112) with two pairs of facing reflective sides (110N-110S, 110W-110E) curved to different parabolas. The second stage (112) is optically coupled to a solid light diffuser (114) in some embodiments. The solid light diffuser (114) is optically coupled to the photovoltaic cell (116) with a clear encapsulant (120). The radiant energy concentrator (100) is mounted on a metal substrate (118) for thermal management. The radiant energy concentrator (100) can operate efficiently with only single axis tracking of the Sun in part because the reflective sides form orthogonal acceptance angles corresponding to the annual and daily apparent passage of the Sun on Earth.
    • 适于与光伏电池(116)一起使用的阳光辐射能量集中器(100)。 辐射能量集中器具有通过弯曲成不同抛物线的两对相对的反射侧面(110N-110S,110W-110E)形成的中空的第一平台(110)。 第一级(110)被光耦合到固体第二级(112),其中两对面对的反射侧(110N-110S,110W-110E)弯曲成不同的抛物线。 在一些实施例中,第二级(112)光学耦合到固体光扩散器(114)。 固体光扩散器(114)用透明密封剂(120)光学耦合到光伏电池(116)。 辐射能量集中器(100)安装在金属基板(118)上用于热管理。 辐射能量集中器(100)可以仅使用太阳的单轴跟踪来有效地运行,部分原因在于反射侧形成对应于太阳在地球上每年和每天明显通过的正交接收角。
    • 37. 发明申请
    • METHOD AND SYSTEM FOR OPTICALLY TRACKING A TARGET USING AN INTERFEROMETRIC TECHNIQUE
    • 使用干涉技术光学跟踪目标的方法和系统
    • WO2005070166A3
    • 2006-02-23
    • PCT/US2005000900
    • 2005-01-12
    • AGILENT TECHNOLOGIES INC
    • XIE TONGBANEY DOUGLAS MDEPUE MARSHALL T
    • G01B9/02G01S17/42G06F3/033G06F3/042G06M7/00G01C21/02
    • G06F3/0423G01S17/42G06F3/0346
    • An optical position-tracking system (200) comprises an optical device (260) for generating an incident light beam (284) and a reference light beam (282) from a light beam (280). Moreover, the optical position-tracking system (200) further comprises a light beam steering device (230) for sweeping the incident light beam (284) through an angular range (290) to cause a reflection (286) of the incident light beam (284) by a target (205), whereas the reflection (286) of the incident light beam (284) is directed to interfere with the reference light beam (282) to form an interference light beam (250). Additionally, the optical position-tracking system (200) enables determination of a position of the target (205) using an interferometric technique utilizing an angular value of the incident light beam (284) and the interference light beam (250), whereas the angular value depends on the reflection (286). If the light beam (280) has a plurality of wavelengths, either due to the existence of these wavelengths simultaneously, or over a time interval having multiple wavelengths, the absolute position of the target (205) can be determined. If the light beam (280) has a single wavelength, the relative position of the target (205) can be determined.
    • 光学位置跟踪系统(200)包括用于从光束(280)产生入射光束(284)和参考光束(282)的光学装置(260)。 此外,光学位置跟踪系统(200)还包括光束转向装置(230),用于将入射光束(284)扫过角度范围(290),以引起入射光束的反射(286) 284),而入射光束(284)的反射(286)被引导干涉参考光束(282)以形成干涉光束(250)。 另外,光学位置跟踪系统(200)能够使用利用入射光束(284)和干涉光束(250)的角度值的干涉技术来确定目标(205)的位置,而角度 值取决于反射(286)。 如果光束(280)具有多个波长,或者由于同时存在这些波长,或者在具有多个波长的时间间隔上,则可以确定目标(205)的绝对位置。 如果光束(280)具有单个波长,则可以确定目标(205)的相对位置。