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    • 14. 发明授权
    • Weight shift detector
    • 重量移位检测器
    • US4994793A
    • 1991-02-19
    • US447623
    • 1989-12-08
    • Kevin Curtis
    • Kevin Curtis
    • G08B13/14
    • G08B13/1472Y10T307/786
    • A device for detecting intrusion for security or inventory control purposes includes a mat having loosely superposed metallic foil sheets separated by a sheet of paper or plastic foil dielectric to form a capacitor, and circuitry connected to provide a voltage differential to the capacitor and to detect a change in capacitance caused by weight applied to or removed from the mat. The circuit includes a voltage regulator to regulate the applied voltage differential, a unity gain amplifier to isolate the mat capacitor from change signal amplifier circuitry, a comparator to compare the amplified change signal with user settable thresholds, and a one-shot multivibrator for initiating an alarm signal pulse when one of the thresholds is exceeded. The sheets are preferably aluminum foil backed with plastic film and, in one form, are wrapped one around the other.
    • 用于检测用于安全或库存控制的入侵的装置包括具有松散重叠的金属箔片的垫,该金属箔片由一张纸或塑料箔电介质隔开以形成电容器,以及电路,被连接以向电容器提供电压差并检测 由施加到或从垫子移除的重量引起的电容变化。 电路包括用于调节施加的电压差的电压调节器,用于将滤波电容器与变化信号放大器电路隔离的单位增益放大器,用于将放大的变化信号与用户可设置的阈值进行比较的比较器,以及用于启动电压的单稳态多谐振荡器 超过阈值之一时的报警信号脉冲。 这些片材优选为用塑料膜背衬的铝箔,并且以一种形式围绕另一种形式包裹。
    • 17. 发明授权
    • Speckle reduction using lenslet integrator
    • 使用小透镜积分器减少斑点
    • US08995061B2
    • 2015-03-31
    • US13544964
    • 2012-07-09
    • Kevin Curtis
    • Kevin Curtis
    • G02B27/10G02B27/48
    • G02B27/48G02B3/0056G02B3/0062G02B26/0875G03B21/208
    • Disclosed herein are techniques for the reduction speckle of a projection display system using novel lenslet integrators and related methods. In one embodiment, a lenslet integrator system for reducing speckle on a display screen may comprise a first lenslet array configured to receive incoming light for use in displaying an image on a display screen. Specifically, the first lenslet array has motion sufficient to reduce speckle by averaging multiple speckle patterns across its array. Such an exemplary system may also include a second lenslet array configured to receive light that is roughly focused from the moving first lenslet array, due to the motion of the first array. In addition, such systems may also include an output lens configured to receive light focused from the second lenslet array for output from the system for illumination of the display screen.
    • 本文公开了使用新颖的小透镜积分器和相关方法来减少投影显示系统的斑点的技术。 在一个实施例中,用于减少显示屏上的斑点的小透镜积分器系统可以包括配置成接收入射光以用于在显示屏上显示图像的第一小透镜阵列。 具体来说,第一个小透镜阵列具有足够的运动以通过在其阵列上平均多个斑纹图案来减少斑点。 这种示例性系统还可以包括由于第一阵列的运动而被配置为接收从移动的第一小透镜阵列粗略聚焦的光的第二小透镜阵列。 此外,这样的系统还可以包括配置成接收从第二小透镜阵列聚焦的光的输出透镜,用于从系统输出用于显示屏的照明。
    • 18. 发明授权
    • Optical recording apparatus and optical head
    • 光记录装置和光头
    • US07551538B2
    • 2009-06-23
    • US11256085
    • 2005-10-24
    • Shigeki HoriKevin CurtisAaron Wegner
    • Shigeki HoriKevin CurtisAaron Wegner
    • G11B7/00
    • G11B7/1378G11B7/0065G11B2007/13727
    • To provide an optical recording apparatus capable of effectively suppressing useless fixation to an information-unrecorded area during a fixing process with a simple structure, and an optical head. Upon recording information, a movable lens of an expander lens 104 is positioned in an information recording position. In an information fixing process, the movable lens of the expander lens 104 is positioned in a fixing-process position. In this case, a range of irradiation to the recording medium with the data light becomes somewhat wider than that in the information recording process. Accordingly, it is possible to fix the information to an area irradiated with the data light in the information recording process without fail. In addition, the irradiation range is only somewhat wider than that in the information fixing process, making it possible to minimize the region uselessly subjected to the fixing process.
    • 提供一种光学记录装置,能够在简单的结构的定影处理和光学头中有效地抑制对信息未记录区域的无用的固定。 在记录信息时,扩展器透镜104的可移动透镜位于信息记录位置。 在信息定影处理中,扩展器透镜104的可移动透镜位于定影处理位置。 在这种情况下,利用数据光照射到记录介质的范围变得比信息记录处理中的照射范围稍宽。 因此,可以在信息记录处理中将信息固定在由数据光照射的区域中。 此外,照射范围仅比信息定影处理中的照射范围稍宽,从而可以使无法进行定影处理的区域最小化。