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    • 2. 发明授权
    • Shaped selective thermal emitter
    • 形状选择性热发射器
    • US08134285B2
    • 2012-03-13
    • US11961639
    • 2007-12-20
    • Robert A Marshall
    • Robert A Marshall
    • H01J5/16H01J61/40H01J11/00
    • H01K1/14G01J5/08G01J5/0887G01J5/60H01K1/04
    • A geometrically shaped photonic crystal structure consisting of alternating layers of thin films is heated to emit light. The structure may include index matching layers or a cavity layer to enhance emissions. The layer thicknesses of the structure may be spatially varied to modify the emission spectrum versus emission angle. The self-focusing structure may be fabricated into a convex electrically heated wire filament light bulb, a concave visible thermophotovoltaic emitter, a concentric directional heat exchanger, an electronic display, or a variety of irregularly shaped remotely read temperature or strain sensors.
    • 由交替的薄膜组成的几何形状的光子晶体结构被加热以发光。 该结构可以包括折射率匹配层或空腔层以增强排放。 结构的层厚度可以在空间上变化以修改发射光谱对发射角。 自聚焦结构可以制造成凸形电加热丝灯丝灯泡,凹形可见热光电发射器,同心定向热交换器,电子显示器或各种不规则形状的远程读取温度或应变传感器。
    • 9. 发明授权
    • Over-voltage protection against periodic disturbances
    • 过电压保护,防止周期性干扰
    • US06707656B1
    • 2004-03-16
    • US09752877
    • 2000-12-28
    • Robert A. Marshall
    • Robert A. Marshall
    • H02H320
    • H02H9/041
    • An over-voltage protection module protects communications equipment against voltage surges, including periodic voltage disturbances. The protection module provides a steady state activation voltage threshold and a reduced activation voltage threshold less than the steady state value. Upon a receiving a periodic disturbance, the module activates initially upon receiving a voltage exceeding the steady state activation voltage threshold and activates for subsequent cycles of the disturbance upon receiving a voltage exceeding the reduced activation voltage threshold.
    • 过电压保护模块可保护通信设备免受电压浪涌,包括周期性电压扰动。 保护模块提供稳态激活电压阈值和小于稳态值的降低的激活电压阈值。 在接收到周期性干扰时,模块在接收到超过稳态激活电压阈值的电压时初始激活,并且在接收到超过降低的激活电压阈值的电压时激活随后的干扰周期。