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    • 181. 发明公开
    • Pressure sensor with vibrating member
    • Drucksensor mit Schwingungselement
    • EP1808685A2
    • 2007-07-18
    • EP07105760.8
    • 2003-11-07
    • VARIAN S.p.A.
    • Maccarrone, CristianCorreale, RaffaeleBusso, Mario
    • G01L21/22
    • G01L9/0016G01L9/0019G01L21/22
    • The invention concerns a pressure sensor including: a micro-electromechanical vibrating device, comprising a silicon substrate (15') onto which a multilayer vibrating assembly (321) is formed; a control device (21') of said assembly in order to make it oscillate relative to said substrate at the resonance frequency or at another known frequency; and a detector for detecting the actual frequency and/or amplitude of said oscillation. Since said actual frequency and/or amplitude are affected by the conditions, in particular the pressure, of the external environment, the variations of said frequency and said amplitude with respect to the values set by said control device can be used to measure pressure variations in the surrounding environment.
    • 本发明涉及一种压力传感器,包括:微机电振动装置,其包括形成多层振动组件(321)的硅衬底(15'); 所述组件的控制装置(21'),以使其以共振频率或另一已知频率相对于所述衬底振荡; 以及用于检测所述振荡的实际频率和/或振幅的检测器。 由于所述实际频率和/或振幅受到外部环境的条件特别是压力的影响,因此所述频率和所述振幅相对于由所述控制装置设定的值的变化可用于测量压力变化 周边环境。
    • 190. 发明公开
    • A vehicle headlight comprising a worked reflecting surface for shaping the light beam through reflection
    • 用于产生由反射反射表面处理的光束具有一种机动车辆头灯
    • EP0741262A2
    • 1996-11-06
    • EP96104681.0
    • 1996-03-25
    • TRI.O.M. S.P.A.
    • Lioy, VicenzoOlivetti, Lucio
    • F21M3/08F21V7/04
    • F21V7/04F21S41/337
    • A vehicle headlight of the clear transparent refractor type, comprising a worked reflecting surface for shaping, through reflection only, the light beam from a source lamp (9) wherein the profile of said reflector (19) comprises columnar reflecting surfaces (1) having a cross-section that is an arc of circle and having both curved edges lying on a reference surface of revolution.
      Each of said arcs of circle (1) starts and terminates on the profile of the reference parabola (3) at intersection points (5, 7) that are selected so that a light ray from the filament (9) is reflected by said intersection points (3 or 5) into a plane 11 orthogonal to the optical axis 13 at an assigned distance from the center point (15) defined by the intersection of plane 11 with the optical axis 13.
    • 清澈透明折射类型的车辆头灯,包括用于成形一工作反射面,通过反射只,从光源灯的光束(9)worin所述反射器的轮廓(19)包括具有柱状反射面(1) 横截面那样是圆的圆弧,并且具有两个弯曲的边缘躺在革命的基准面。 每一个圆的圆弧。所述的(1)开始,并终止于所述参考抛物线(3)的交叉点处的轮廓(5.7)没有被选择为使得从丝(9)由所述交点反射做了光线 (5或7)到一个平面(11)在垂直于所述光轴(13)在从由平面(11)的交点所限定的中心点(15)分配距离与光轴(13)。