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    • 5. 发明授权
    • Mass spectrometers and methods of ion separation and detection
    • 质谱仪和离子分离和检测方法
    • US08692188B2
    • 2014-04-08
    • US13580503
    • 2010-11-10
    • Brian Christopher Webb
    • Brian Christopher Webb
    • H01J49/26
    • H01J49/401H01J49/403
    • A mass spectrometer operating according to the iso-tach principle in which a mass filter accelerates ions to nominally equal velocities irrespective of their mass-to-charge ratios. The mass spectrometer is provided with an improved detector based on an electrostatic lens arrangement made of a concave lens followed in the beam path by a convex lens. These lenses deflect ions away from the beam axis by a distance from the beam axis that is inversely proportional to their mass-to-charge ratios. The mass-to-charge ratio of the ions can then be determined by a suitable detector array, such as a multi-channel plate placed in the beam path. This provides a compact and sensitive instrument.
    • 质谱仪根据等离子体原理操作的质谱仪,其中质量过滤器将离子加速至名义上相等的速度,而与其质荷比无关。 质谱仪具有基于由凹透镜制成的静电透镜布置的改进的检测器,后者是通过凸透镜在光束路径中。 这些透镜使离子束离开光束轴离离与光束轴一定距离,其与其质荷比成反比。 然后可以通过合适的检测器阵列(例如放置在光束路径中的多通道板)来确定离子的质荷比。 这提供了一个紧凑和敏感的仪器。
    • 6. 发明授权
    • Mass spectrometers and methods of ion separation and detection
    • 质谱仪和离子分离和检测方法
    • US07247847B2
    • 2007-07-24
    • US10480731
    • 2002-05-29
    • Brian Christopher WebbDonald Clifford Young
    • Brian Christopher WebbDonald Clifford Young
    • H01J49/00
    • H01J49/34H01J49/443
    • A mass spectrometer comprises an ion source which provides a beam of ions; a mass filter comprising a pair of electrodes and a drive circuit, the drive circuit operable to apply a time varying voltage to the electrodes having a profile that accelerates the ions to equal velocities irrespective of their mass: charge ratios; and an ion detector for detecting the proportions of ions according to their mass-to-charge ratios. In one embodiment, the voltage profile is exponential. In another embodiment, the voltage profile is a sequence of constant amplitude and increasing repetition frequency pulses. The novel mass filter thus imparts equal velocities to all ion species irrespective of their mass. This allows the ion species to be discriminated at the detector by energy, enabling simple and compact detection schemes to be used.
    • 质谱仪包括提供离子束的离子源; 包括一对电极和驱动电路的质量过滤器,所述驱动电路可操作以向电极施加时变电压,所述电极具有将离子加速至相等速度的轮廓,而与其质量:充电比无关; 以及用于根据其质荷比检测离子比例的离子检测器。 在一个实施例中,电压分布是指数的。 在另一个实施例中,电压分布是恒定幅度和增加的重复频率脉冲的序列。 因此,新颖的质量过滤器对所有离子物质赋予等速度,而不管其质量如何。 这允许通过能量在检测器处鉴别离子种类,使得能够使用简单和紧凑的检测方案。
    • 7. 发明申请
    • Method and apparatus for previewing a panoramic image on a digital camera
    • 用于在数码相机上预览全景图像的方法和装置
    • US20060182437A1
    • 2006-08-17
    • US11055885
    • 2005-02-11
    • Karen WilliamsChristopher WebbAngelica Quintana
    • Karen WilliamsChristopher WebbAngelica Quintana
    • H04N5/225
    • H04N5/2624H04N5/23238
    • A camera and related methodology in which a stitched panoramic image may be generated from a series of individual image frames onboard the camera and displayed on the camera display in a “real-time” environment. This allows the user to preview the completed panorama on the camera without the need to first upload the image frames onto a support computer. In this manner, the user is able to identify potential problems with the panorama and, if necessary, reacquire the individual image frames. In order to reduce the amount of onboard processor power and/or memory required, stitching may be performed on relatively lower resolution image frame files within the camera. When the preview indicates that image data for the panorama has been successfully acquired, then the full resolution image data may be uploaded to a support computer for processing.
    • 相机和相关方法,其中可以从相机上的一系列单独的图像帧生成拼接的全景图像并且在“实时”环境中显示在相机显示器上。 这允许用户在相机上预览完成的全景图,而不需要首先将图像帧上传到支持计算机上。 以这种方式,用户能够识别全景的潜在问题,并且如果需要,重新获取各个图像帧。 为了减少板载处理器的功率和/或所需的存储器的数量,可以在相机内相对较低分辨率的图像帧文件上执行缝合。 当预览指示已经成功获取了全景图像数据时,则可以将全分辨率图像数据上传到支持计算机进行处理。