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    • 1. 发明授权
    • Process for monitoring crimped material
    • 压接材料监控流程
    • US4460921A
    • 1984-07-17
    • US437061
    • 1982-10-27
    • James W. HenryThomas A. Mitchell
    • James W. HenryThomas A. Mitchell
    • G01B11/25H04N7/18
    • G01B11/2518
    • 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.
    • 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。
    • 6. 发明授权
    • Achromatic optical switching/routing systems
    • 消色差光交换/路由系统
    • US06795601B1
    • 2004-09-21
    • US10444797
    • 2003-05-23
    • Thomas A. MitchellThomas W. Stone
    • Thomas A. MitchellThomas W. Stone
    • G02B626
    • G02B6/29311G02B6/29314G02B6/30G02B6/32H04Q11/0005H04Q2011/0024H04Q2011/0026
    • Methods and systems that compensate for the lateral chromatic dispersion and lateral shifts induced by the propagation through a switching/routing optical system. Utilizing the methods and systems of the present invention, an output of a switching/routing optical system that produces angularly dispersed output beams is achromatized by, first, deviating the output optical beam to a direction sufficient to induce lateral chromatic aberration of the opposite sign to that produced by the switching/routing optical system; and, then, re-deviating the deviated output optical beam to a predetermined direction, where a path length of the deviated output optical beam is a length sufficient to substantially compensate the chromatic dispersion induced by the switching/routing optical system.
    • 补偿横向色散和通过开关/路由光学系统的传播引起的横向偏移的方法和系统。 利用本发明的方法和系统,产生角度分散的输出光束的切换/路由光学系统的输出被消除,首先,将输出光束偏离到足以引起相反符号的横向色差的方向 由切换/路由光学系统产生的; 然后将偏斜的输出光束重新偏离到预定方向,其中偏离的输出光束的路径长度足以基本上补偿由开关/路由光学系统引起的色散。