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    Display with compensated light source drive
    295.
    发明授权
    Display with compensated light source drive 有权
    显示补偿光源驱动

    公开(公告)号：US07473888B2

    公开(公告)日：2009-01-06

    申请号：US11600999

    申请日：2006-11-17

    Applicant: David W. Wine ,  Mark P. Helsel ,  Jon D. Barger ,  Clarence T. Tegreene

    Inventor： David W. Wine ,  Mark P. Helsel ,  Jon D. Barger ,  Clarence T. Tegreene

    IPC: H01J3/14

    CPC classification number: G06K7/10633 ,  G02B26/0841 ,  G02B26/085 ,  G02B26/0858 ,  G02B26/101 ,  G02B27/0149 ,  G02B27/017 ,  G02B27/0172 ,  G02B2027/011 ,  G09G3/02 ,  G09G2320/0285 ,  G09G2320/041 ,  H04N5/74 ,  H04N9/3129

    Abstract: A MEM s scanning device has a variable resonant frequency. In one embodiment, the MEMs device includes a torsion arm that supports an oscillatory body. In one embodiment, an array of removable masses are placed on an exposed portion of the oscillatory body and selectively removed to establish the resonant frequency. The material can be removed by laser ablation, etching, or other processing approaches. In another approach, a migratory material is placed on the torsion arm and selectively stimulated to migrate into the torsion arm, thereby changing the mechanical properties of the torsion arm. The changed mechanical properties in turn changes the resonant frequency of the torsion arm. In another approach, symmetrically distributed masses are removed or added in response to a measured resonant frequency to tune the resonant frequency to a desired resonant frequency. A display apparatus includes the scanning device and the scanning device scans about two or more axes, typically in a raster pattern. Various approaches to controlling the frequency responses of the scanning device are described, including active control of MEMs scanners and passive frequency tuning.

    Abstract translation: MEM扫描装置具有可变谐振频率。 在一个实施例中，MEM装置包括支撑摆动体的扭转臂。 在一个实施例中，将可移除质量的阵列放置在振荡体的暴露部分上并选择性地去除以建立谐振频率。 材料可以通过激光烧蚀，蚀刻或其他处理方法去除。 在另一种方法中，将迁移材料放置在扭转臂上并选择性地被刺激以迁移到扭转臂中，从而改变扭转臂的机械特性。 改变的机械性能又改变了扭转臂的共振频率。 在另一种方法中，响应于测量的谐振频率去除或添加对称分布的质量，以将谐振频率调谐到期望的谐振频率。 显示装置包括扫描装置和扫描装置扫描关于两个或多个轴，通常以光栅图案扫描。 描述了控制扫描装置的频率响应的各种方法，包括MEMs扫描器的主动控制和无源频率调谐。

    Refractive boundary elements, devices, and materials
    296.
    发明申请
    Refractive boundary elements, devices, and materials 有权
    折射边界元件，器件和材料

    公开(公告)号：US20080316612A1

    公开(公告)日：2008-12-25

    申请号：US12228555

    申请日：2008-08-13

    Applicant: Roderick A. Hyde ,  Nathan P. Myhrvold ,  Clarence T. Tegreene

    Inventor： Roderick A. Hyde ,  Nathan P. Myhrvold ,  Clarence T. Tegreene

    IPC: G02B13/08 ,  G01M11/02

    CPC classification number: G02B5/3083 ,  Y10T428/24942

    Abstract: An optical device includes an interface between two or more media. The refractive indices, orientations of media, and alignment relative to a propagating wave define a refractive boundary at which reflections may be reduced or eliminated, and at which, for certain incident angles, rays may be refracted on the same side of the normal as the incident ray.

    Abstract translation: 光学装置包括两个或多个介质之间的界面。 介质的折射率，取向和相对于传播波的取向定义了可以减少或消除反射的折射边界，并且在该折射边界处，对于某些入射角度，射线可以在法线的相同侧被折射 事件射线。

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