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    Telecentric reflective imager
    31.
    发明授权
    Telecentric reflective imager 有权

    公开(公告)号：US10261296B1

    公开(公告)日：2019-04-16

    申请号：US14839302

    申请日：2015-08-28

    Applicant: Thomas A. Mitchell

    Inventor： Thomas A. Mitchell

    IPC: G02B13/22 ,  G02B17/06 ,  G02B27/00

    Abstract: A reflective imager design that is telecentric in image space, or equivalently telecentric at an image plane, or equivalently having an exit pupil located substantially at infinity, while also having an external entrance pupil and a high throughput or fast optical speed is described.

    Compact fast catadioptric imager
    32.
    发明授权
    Compact fast catadioptric imager 有权
    紧凑型快折反射成像仪

    公开(公告)号：US07701647B2

    公开(公告)日：2010-04-20

    申请号：US11754026

    申请日：2007-05-25

    Applicant: Thomas A. Mitchell

    Inventor： Thomas A. Mitchell

    IPC: G02B17/00

    CPC classification number: G02B17/0808

    Abstract: A compact, optically fast catadioptric imager. In one embodiment, the catadioptric imager of this invention includes a first group of optical elements optically disposed to receive electromagnetic radiation from an object and having positive optical power, a second group of optical elements, optically disposed between the first group of optical elements and an image plane, having at least one optical surface and having positive optical power, a third group of optical elements, optically disposed between the object and the second group of optical elements, having at least one optical surface and having negative optical power, a fourth group of optical elements substantially centered along an optical axis of said second group of optical elements and having negative optical power, and a fifth group of optical elements having positive optical power.

    Abstract translation: 紧凑的光学快折反射成像仪。 在一个实施例中，本发明的反折射成像器包括第一组光学元件，光学设置为接收来自物体的电磁辐射并具有正光学功率，第二组光学元件，光学地设置在第一组光学元件和 具有至少一个光学表面并具有正光焦度的第三组光学元件，第三组光学元件，光学地设置在物体和第二组光学元件之间，具有至少一个光学表面并具有负光焦度;第四组 的光学元件基本上沿着所述第二组光学元件的光轴居中并且具有负的光学功率，以及具有正光焦度的第五组光学元件。

    Compact triple pass hyperspectral imager
    33.
    发明授权
    Compact triple pass hyperspectral imager 有权
    紧凑三重超光谱成像仪

    公开(公告)号：US07359050B1

    公开(公告)日：2008-04-15

    申请号：US11101881

    申请日：2005-04-08

    Applicant: Thomas A. Mitchell

    Inventor： Thomas A. Mitchell

    IPC: G01J3/28

    CPC classification number: G01J3/2823 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0229 ,  G01J3/0256 ,  G01J3/1804

    Abstract: A compact, triple pass hyperspectral imager (spectrometer). The hyperspectral imager (imaging system) of this invention includes an optical sub-system, a reflective slit element, a reflective dispersive element located substantially at a front plane, the front plane being located on the source side of the optical sub-system, and, a detecting element located substantially at an image surface.

    Abstract translation: 一个紧凑的三通超光谱成像仪（光谱仪）。 本发明的高光谱成像仪（成像系统）包括光子系统，反射狭缝元件，基本上位于前平面的反射色散元件，前平面位于光子系统的源极侧，以及 ，基本上位于图像表面处的检测元件。

    Cathodic protection system for a steel-reinforced concrete structure
    34.
    发明授权
    Cathodic protection system for a steel-reinforced concrete structure 失效
    钢筋混凝土结构阴极保护系统

    公开(公告)号：US5639358A

    公开(公告)日：1997-06-17

    申请号：US395141

    申请日：1995-02-27

    Applicant: John E. Bennett ,  Gerald R. Pohto ,  Thomas A. Mitchell

    Inventor： John E. Bennett ,  Gerald R. Pohto ,  Thomas A. Mitchell

    IPC: C23F13/02 ,  C23F13/16 ,  C25B11/03 ,  C25C7/02 ,  C23F13/00

    CPC classification number: C23F13/16 ,  C23F13/02 ,  C25B11/03 ,  C25C7/02 ,  C23F2201/02 ,  Y10S428/933 ,  Y10T29/18

    Abstract: An anode for cathodically-protected steel-reinforced concrete is embedded in an ion-conductive overlay on the concrete structure. The anode comprises at least one sheet of highly expanded valve metal mesh having a pattern of voids defined by a network of valve metal strands connected at a multiplicity of nodes. This provides a redundancy of current-carrying paths through the mesh which ensures effective current distribution throughout the mesh even in the event of possible breakage of a number of individual strands. The surface of the valve metal mesh carries an electrochemically active coating. At least one current distribution member is welded to the valve metal mesh. The entire area of the structure to be protected, excluding non-protected openings for obstacles and the like, is covered by a single piece of the mesh, or several pieces in close proximity with one another.

    Abstract translation: 用于阴极保护的钢筋混凝土的阳极嵌入在混凝土结构的离子传导覆盖层中。 阳极包括至少一个高度膨胀的阀金属网片，其具有由在多个节点处连接的阀金属线的网络限定的空隙图案。 这提供了通过网格的载流路径的冗余，其确保了在整个网格中的有效电流分布，即使在多个单独的线束可能的断裂的情况下。 阀门金属网的表面带有电化学活性涂层。 至少一个电流分配构件焊接到阀金属网。 要保护的结构的整个区域，不包括用于障碍物等的未受保护的开口，被单个网状物或彼此紧邻的几个部分覆盖。

    Method and apparatus for cathodically protecting reinforced concrete structures
    36.
    发明授权
    Method and apparatus for cathodically protecting reinforced concrete structures 失效
    阴极保护钢筋混凝土结构的方法和装置

    公开(公告)号：US5292411A

    公开(公告)日：1994-03-08

    申请号：US892913

    申请日：1992-06-03

    Applicant: John J. Bartholomew ,  John E. Bennett ,  Barry L. Martin ,  Thomas A. Mitchell

    Inventor： John J. Bartholomew ,  John E. Bennett ,  Barry L. Martin ,  Thomas A. Mitchell

    IPC: C23F13/02 ,  E04B1/64 ,  E04C5/01 ,  C23F13/00

    CPC classification number: E04C5/01 ,  C23F13/02 ,  C23F2201/02

    Abstract: Cathodic protection of a reinforced concrete structure utilizes a metal anode such as a zinc anode in combination with a pressure sensitive ionically conductive hydrogel in contact with at least a portion of the surface of the anode. Preferably, the anode and ionically conductive hydrogel are flexible and supplied in roll form. The combination may further include the addition of salt to the hydrogel as well as application to the metal-hydrogel combination of Type III cement. The cathodic protection may be carried out with or without a power source.

    Abstract translation: 钢筋混凝土结构的阴极保护使用诸如锌阳极的金属阳极与与阳极表面的至少一部分接触的压敏离子导电水凝胶组合。 优选地，阳极和离子导电水凝胶是柔性的并且以卷形式供应。 该组合可以进一步包括向水凝胶中加入盐以及应用于III型水泥的金属 - 水凝胶组合。 阴极保护可以在有或没有电源的情况下进行。

    Process for monitoring crimped material
    38.
    发明授权
    Process for monitoring crimped material 失效
    压接材料监控流程

    公开(公告)号：US4460921A

    公开(公告)日：1984-07-17

    申请号：US437061

    申请日：1982-10-27

    Applicant: James W. Henry ,  Thomas A. Mitchell

    Inventor： James W. Henry ,  Thomas A. Mitchell

    IPC: G01B11/25 ,  H04N7/18

    CPC classification number: G01B11/2518

    Abstract: Disclosed is a method of monitoring planar sections of material having generally parallel crimps, the material having a longitudinal dimension extending generally perpendicular to the crimps and a transverse dimension generally parallel to the crimps. The material, such as a bundle of crimped fibers or tow, generally defines a plane, and the method comprises(a) illuminating the material along a line generally longitudinally of the material and over a plurality of the crimps by causing a plane of light, or the plane defined by sweeping a ray of light, to intersect with the surface of the material at an angle of between about 30.degree. and about 60.degree. with the plane of the tow when viewed along the tow band, such that the light intersecting the crimped material produces a generally zig-zagged line of illumination when viewed from an angle other than that of the light source, the peaks and valleys of which illustrate the profile of the crimped material, and(b) recording the pattern of the generally zig-zagged line from an angle relative to the material different from the plane of light such that the profile of the material can be determined.

    Abstract translation: 公开了一种监测具有大致平行的卷曲的材料的平面部分的方法，该材料具有大致垂直于卷曲的纵向尺寸和大致平行于卷曲的横向尺寸。 材料，例如一束卷曲的纤维或丝束，通常限定一个平面，并且该方法包括（a）沿着材料的大体上纵向的线和多个卷曲上的材料沿着一条光线照射材料， 或通过扫掠光线限定的平面，当沿着丝束带观察时，以与丝束的平面成约30度至约60度的角度与材料的表面相交，使得光线与 卷曲材料从与光源不同的角度观察时产生大致上为锯齿状的照明线，其峰和谷示出了卷曲材料的轮廓，以及（b）记录通常Zig- 从与一个不同于光平面的材料相对的角度来看，这种材料的轮廓可以被确定。

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