Postacquired spectrophotometers
    1.
    发明授权
    Postacquired spectrophotometers 失效
    后检测分光光度计

    公开(公告)号:US5386295A

    公开(公告)日:1995-01-31

    申请号:US005321

    申请日:1993-01-15

    摘要: A postacquired spectrophotometer, for use with a sample and reference. The spectrophotometer has a filter unit, defining an axis of movement, and pluralities of designated sites and dark sites disposed in uniform relation to the axis. The designated and dark sites are disposed in alternation. Alternating designated sites have apertures and filters covering the apertures. Further, a main member, coaxial with the filter unit, has sample and reference beam paths, which are intersected by the sites. The main member has disposed, in operative relation to the actuators, an actuator sensor, which generates an integration actuator signal upon alignment with each integration actuator and a clamping actuator signal upon alignment with each clamping actuator. Moreover, a drive continuously moves the filter unit relative to the axis and beam paths. Further, a light distribution system directs light separately from the sample and reference to respective beam paths, and then to a detector, which produces a detector signal responsive to light received. Finally, means for processing the signals is provided, including a clamping circuit, integrators, and a demultiplexer.

    摘要翻译: 一个采用分光光度计的分光光度计,用于样品和参考。 分光光度计具有限定运动轴线的过滤器单元以及与轴线均匀关系地设置的多个指定位置和暗点。 指定的和黑暗的地点交替处置。 交替指定的位置具有覆盖孔的孔和过滤器。 此外,与过滤器单元同轴的主构件具有与位置相交的样品和参考光束路径。 主构件以致动器的方式相对于致动器设置致动器传感器,其在与每个积分致动器对准时产生积分致动器信号,并且在与每个夹紧致动器对准时产生夹紧致动器信号。 此外,驱动器相对于轴和梁路连续地移动过滤单元。 此外,配光系统将光从样品分开引导并参考各个光束路径,然后引导到检测器,该检测器响应于所接收的光产生检测器信号。 最后,提供用于处理信号的装置,包括钳位电路,积分器和解复用器。

    Planar waveguide liquid crystal variable retarder
    4.
    发明授权
    Planar waveguide liquid crystal variable retarder 失效
    平面波导液晶可变延迟器

    公开(公告)号:US5347377A

    公开(公告)日:1994-09-13

    申请号:US899961

    申请日:1992-06-17

    CPC分类号: G02F1/1326 G02F1/21

    摘要: A waveguide optical device having a guide member for propagation of light in a longitudinal direction. The guide member has upper and lower boundaries. A mass of birefringent material is disposed proximal to the guide member. The birefringent material has molecular dipoles subject to alignment by an imposed electrical field. The birefringent mass is overlapped by the optical field of the propagated light. An upper electrode is disposed in spaced relation to the birefringent mass. A lower electrode is disposed in spaced relation to the guide member. The electrodes have the capability of imposing an alternating current voltage across the birefringent mass to rotate the molecular dipoles of the birefringent mass in a plane defined by the normal to the guide member and the propagation vector of the light. The boundaries and the electrodes define an upper isolation zone between the upper electrode and the upper boundary, a guide path between the boundaries, and a lower isolation zone between the lower boundary and the lower electrode. The guide path has an effective index of refraction greater than the effective indexes of refraction of the isolation zones.

    摘要翻译: 一种具有用于在纵向上传播光的引导构件的波导光学装置。 引导构件具有上边界和下边界。 大量的双折射材料设置在引导构件的近侧。 双折射材料具有通过施加的电场进行对准的分子偶极子。 双折射质量与传播光的光场重叠。 上电极以与双折射物质隔开的关系设置。 下电极与引导构件隔开设置。 这些电极具有跨越双折射物质的交流电压的能力,以便在由引导部件的法线和光的传播矢量限定的平面内旋转双折射物质的分子偶极子。 边界和电极限定了上电极和上边界之间的上隔离区,边界之间的引导路径和下边界与下电极之间的下隔离区。 引导路径的有效折射率大于隔离带的有效折射率。

    Near infrared diagnostic method and instrument
    5.
    发明授权
    Near infrared diagnostic method and instrument 失效
    近红外诊断方法和仪器

    公开(公告)号:US5197470A

    公开(公告)日:1993-03-30

    申请号:US568452

    申请日:1990-07-16

    摘要: There are disclosed an instrument and method for using near IR to discriminate between healthy and diseased tissue, using, e.g., a catheter and a spectrophotometer. Near IR is passed at certain wavelengths to suspected tissue, and reflected light is analyzed to determine the absorbance, and preferably the second derivative thereof. From identification of the absorption spectra of known diseased and known healthy tissue, a relation has been established to determine the following correlation equation for determining the predictive value of y:y=Co+C.sub.1 A(.lambda..sub.1)+C.sub.2 A(.lambda..sub.2)wherein A(.lambda..sub.1)+A(.lambda..sub.2) are the second derivatives for the absorbance at the two selected wavelengths. For blood cholesterol esters and plaque, .lambda..sub.1 is preferably 1714.5 and .lambda..sub.2 is preferably 1678.5 nm. Solving for the coefficients Co, C.sub.1 and C.sub.2, it has been shown that values of y less than -8.0 represent diseased tissue, which should be treated. Ablation laser treatment is described as one mode of treatment.

    CUTTER POSITION CONTROL IN A WEB FED IMAGING SYSTEM
    6.
    发明申请
    CUTTER POSITION CONTROL IN A WEB FED IMAGING SYSTEM 失效
    网络成像系统中的切割位置控制

    公开(公告)号:US20050123335A1

    公开(公告)日:2005-06-09

    申请号:US10731910

    申请日:2003-12-08

    摘要: A method for locating a cutter in a web fed photo imaging system including the steps of measuring an actual fiducial distance between consecutive fiducials, comparing a measured actual fiducial distance between consecutive fiducials to an imaging engine feed distance, calculating a feed distance scaling factor equal to a difference between an average actual fiducial distance and the imaging engine feed distance divided by a total number of discrete incremental moves between fiducials and adjusting the imaging engine feed distance in an amount equal to the scaling factor.

    摘要翻译: 一种用于在卷筒馈送的照相成像系统中定位切割器的方法,包括以下步骤:测量连续基准之间的实际基准距离,将测量的连续基准之间的实际基准距离与成像引擎馈送距离进行比较,计算馈送距离缩放因子等于 平均实际基准距离和成像引擎馈送距离之间的差除以基准之间的离散增量移动的总数,并且以等于缩放因子的量调整成像引擎馈送距离。

    Printhead error compensation
    7.
    发明授权
    Printhead error compensation 失效
    打印头错误补偿

    公开(公告)号:US07708362B2

    公开(公告)日:2010-05-04

    申请号:US10828736

    申请日:2004-04-21

    CPC分类号: B41J29/393

    摘要: A method for calibrating one or more printheads includes printing a reference image using a first portion of image forming points of a first printhead, printing a diagnostic image using a second portion of image forming points of either the first printhead or a second printhead, detecting an optical density of the combined reference image and the diagnostic image and determining a compensation value based upon the optical density.

    摘要翻译: 用于校准一个或多个打印头的方法包括使用第一打印头的图像形成点的第一部分打印参考图像,使用第一打印头或第二打印头的图像形成点的第二部分打印诊断图像,检测 组合参考图像和诊断图像的光密度,并且基于光密度确定补偿值。

    COMPENSATION FOR THERMAL DISTORTION IN A PRINTING SYSTEM
    8.
    发明申请
    COMPENSATION FOR THERMAL DISTORTION IN A PRINTING SYSTEM 审中-公开
    印刷系统热变形补偿

    公开(公告)号:US20100214338A1

    公开(公告)日:2010-08-26

    申请号:US12393345

    申请日:2009-02-26

    IPC分类号: B41J29/38

    CPC分类号: B41J29/393 B41J29/02

    摘要: A method of compensating for thermally induced misalignments in a printing system includes measuring two or more temperatures of a structure within the printing system, mathematically differencing the two or more temperatures to produce a differenced value, inputting the differenced value into a correlation equation, the correlation equation predicting a misalignment of a target printing system component, and compensating for the predicted misalignment of the target printing system component.

    摘要翻译: 补偿印刷系统中热诱导的不对准的方法包括测量印刷系统内的结构的两个或多个温度,在数学上区别两个或多个温度以产生差分值,将差分值输入相关方程,相关性 预测目标打印系统组件的未对准的方程,以及补偿目标打印系统组件的预测的未对准。

    System and method to hide die-to-die boundary banding defects in a drum printer
    9.
    发明申请
    System and method to hide die-to-die boundary banding defects in a drum printer 有权
    用于隐藏滚筒打印机中的模 - 边界条带缺陷的系统和方法

    公开(公告)号:US20060164492A1

    公开(公告)日:2006-07-27

    申请号:US11044123

    申请日:2005-01-27

    IPC分类号: B41J2/01

    摘要: Exemplary embodiments of the invention include systems and methods of reducing visible print defects in drum printers having multi-die printheads oriented substantially perpendicular to the print media path. The exemplary embodiments include printing very small amounts of additional ink via empirically determined printing masks in addition to the normal image content, such that the print defects become less visible. Further exemplary embodiments include printing the additional ink during times typically utilized for print drying.

    摘要翻译: 本发明的示例性实施例包括减少鼓打印机中可见的打印缺陷的系统和方法,其具有基本上垂直于打印介质路径定向的多模头打印头。 示例性实施例包括除了正常图像内容之外通过经验确定的打印掩模打印非常少量的附加墨水,使得打印缺陷变得不太可见。 另外的示例性实施例包括在通常用于打印干燥的时间期间打印附加墨水。

    Printhead error compensation
    10.
    发明申请
    Printhead error compensation 失效
    打印头错误补偿

    公开(公告)号:US20050237351A1

    公开(公告)日:2005-10-27

    申请号:US10828736

    申请日:2004-04-21

    IPC分类号: B41J29/38 B41J29/393

    CPC分类号: B41J29/393

    摘要: A method for calibrating one or more printheads includes printing a reference image using a first portion of image forming points of a first printhead, printing a diagnostic image using a second portion of image forming points of either the first printhead or a second printhead, detecting an optical density of the combined reference image and the diagnostic image and determining a compensation value based upon the optical density.

    摘要翻译: 用于校准一个或多个打印头的方法包括使用第一打印头的图像形成点的第一部分打印参考图像,使用第一打印头或第二打印头的图像形成点的第二部分打印诊断图像,检测 组合参考图像和诊断图像的光密度,并且基于光密度确定补偿值。