-
公开(公告)号：US6110539A
公开(公告)日：2000-08-29
申请号：US239137
申请日：1999-01-27
CPC分类号： B82Y25/00 , B82Y10/00 , B82Y40/00 , G11B5/3925 , H01F41/14 , H01F41/18 , H01F41/30 , G11B2005/3996 , G11B5/3113 , G11B5/3163
摘要： A method for creating a magnetically permeable film on a substrate surface by deposition of successive layers of a magnetic material, during deposition of each layer a magnetic field being provided near said surface having a field direction substantially parallel to the surface. In order to tune the permeability of the magnetic material the method builds up the magnetically permeable film by forming each layer by depositing a ferromagnetic material to a thickness maximally corresponding to substantially ##EQU1## where L.sub.ex is equal to ##EQU2## with A being the exchange constant of the ferromagnetic material and K.sub.u being the uniaxial anisotropy constant, and changing the magnetic field direction during formation of said layer by an angle other than substantially 180.degree..
摘要翻译： 一种通过沉积磁性材料的连续层来在基底表面上形成导磁膜的方法，每个层的沉积期间在所述表面附近提供磁场，该磁场具有基本上平行于该表面的场方向。 为了调整磁性材料的磁导率，该方法通过将铁磁材料沉积到基本上相当于其中Lex等于A的厚度来形成每个层来建立导磁膜，其中A A是铁磁材料的交换常数， Ku是单轴各向异性常数，并且在形成所述层期间以大致180度以外的角度改变磁场方向。
-
公开(公告)号：US20080049438A1
公开(公告)日：2008-02-28
申请号：US11466420
申请日：2006-08-22
IPC分类号： F21S8/10
CPC分类号： B60Q1/2607 , B60Q1/0052 , B60Q1/0058 , F21S43/14 , F21Y2107/60 , F21Y2113/00 , F21Y2115/10
摘要： Various techniques are described herein for combining two or more LEDs in a single reflective cavity for a rear lamp in an automobile. The LEDs may be two or more different colors for performing different functions, such as a stop light, a turn signal, and a tail light. In one embodiment, the LEDs have side emitting lenses and are coaxially aligned in a parabolic reflector. The LEDs may be mounted facing each other or mounted in the same direction, or a combination of both. The LEDs may share a common heat sink. A second reflector may be positioned inside a larger reflector, where a first LED is mounted near the focal point of the larger reflector, and a second LED is mounted near the focal point of the inner reflector. Additional LEDs may also be mounted in either reflector and separately controlled.
摘要翻译： 这里描述了用于在汽车中的后灯的单个反射腔中组合两个或更多个LED的各种技术。 LED可以是用于执行不同功能的两种或更多种不同的颜色，诸如停止光，转向信号和尾灯。 在一个实施例中，LED具有侧发射透镜并且在抛物面反射器中同轴对准。 LED可以彼此相对地安装或者以相同的方向安装，或者两者的组合。 LED可以共享公共散热器。 第二反射器可以位于较大反射器的内部，其中第一LED安装在较大反射器的焦点附近，并且第二LED安装在内反射器的焦点附近。 附加的LED也可以安装在任一反射器中并且单独控制。
-
3.发明申请公开(公告)号：US20090067170A1
公开(公告)日：2009-03-12
申请号：US11851244
申请日：2007-09-06
CPC分类号： F21V5/045 , F21V13/04 , F21Y2103/10 , F21Y2115/10 , G02B19/0028 , G02B19/0066 , Y10S362/80
摘要： An optical system includes a cylindrical side emitter lens, a reflector and a cylindrical Fresnel lens to produce a substantially uniformly illuminated exit plane with well collimated light in the forward direction. The cylindrical side emitter lens redirects light from a light source, such as a number of light emitting diodes placed in a straight line, into side emitted light along an optical axis that is parallel with the exit plane. The reflector may be a stepped multi-focal length reflector that includes multiple reflector surfaces with different focal lengths based on the surfaces distance to the light source and height to redirect light from the cylindrical side emitter lens to illuminate the exit plane and collimate the light along one axis in the forward direction. The cylindrical Fresnel lens is used to collimate the light along an orthogonal axis in the forward direction.
摘要翻译： 光学系统包括圆柱形侧面发射透镜，反射器和圆柱形菲涅尔透镜，以产生基本上均匀地照射的出射平面，并且在正向上具有准直的光。 圆柱形侧面发射透镜将来自放置在直线上的多个发光二极管的光源的光重定向到与出射平面平行的光轴的侧面发射的光。 反射器可以是阶梯式多焦距反射器，其包括具有不同焦距的多个反射器表面，其基于距光源的表面距离和高度来重定向来自圆柱形侧发射器透镜的光以照亮出射平面并使光沿着 一个轴向正方向。 圆柱形菲涅耳透镜用于沿正向轴沿正向准直光。
-
-
搜索结果
3 条记录 (耗时 0.016 秒)