公开(公告)号：US4367047A

公开(公告)日：1983-01-04

申请号：US210956

申请日：1980-11-28

申请人： John B. Ikin

发明人： John B. Ikin

IPC分类号： G01N21/892 ,  G01N21/84

CPC分类号： G01N21/8921

摘要： This invention relates to an apparatus for the detection of downlines on coated web material. The web material is transported past an inspection zone which consists of a means for projecting a narrow beam of light onto the web, means for deflecting the beam of light to scan the web repeatedly in a direction transverse to the direction of web motion, a photocell responsive to light transmitted by the web, an optical diffusing element arranged between the inspection zone and the light sensitive apparatus, and means for moving the diffusing element along a path at least partly transverse to the direction of web transport. Faults are detected by fluctuations in the photocell output.The diffuser is used so that false signals from scratches on the photocell or slight defects in the web are eliminated and it is moved so as to eliminate defects in the diffuser element surface.

摘要翻译： 本发明涉及一种用于检测涂覆网状材料上的下划线的装置。 纤维网材料被运送通过检查区域，该检查区域由用于将窄光束投射到幅材上的装置，用于偏转光束以在横向于幅材运动方向的方向上反复扫描幅材的装置，光电管 响应于由所述幅材传输的光，布置在所述检查区域和所述光敏设备之间的光学漫射元件，以及用于沿着至少部分地横向于所述幅材传送方向的路径移动所述漫射元件的装置。 通过光电管输出的波动来检测故障。 使用漫射器，以消除光电池上划痕的错误信号或幅材上的轻微缺陷，并移动其以消除扩散器元件表面中的缺陷。

公开(公告)号：US4522497A

公开(公告)日：1985-06-11

申请号：US385593

申请日：1982-06-07

申请人： John B. Ikin

发明人： John B. Ikin

IPC分类号： G01N21/89 ,  G01N21/17

CPC分类号： G01N21/8901

摘要： A method and apparatus of photoelectrically scanning a moving web material is described which comprises scanning the web with a narrow light beam sweeping across and beyond the edges of the web, directing light reflected or transmitted by the web to a light receiver of a light measuring unit so generating a corresponding electrical signal, and optically or electronically simulating the optical reflexion or transmission property of the web for two auxiliary scanning zones adjacent the lateral edges of the web in such manner that the average strength of said electrical signal remains constant over substantially the whole scanning sweep.By use of this method abrupt changes in electronic signals received by the receiver when the scanning beam traverses the edges of the web are minimized. The effect of flare is also reduced.

摘要翻译： 描述了一种光电扫描移动纤维网材料的方法和设备，其包括用扫描幅材的边缘扫过幅材，将光纤反射或透射的光引导到光测量单元的光接收器 从而产生相应的电信号，并且以这样的方式光学或电子地模拟幅材的两个辅助扫描区域的纤维网的光学反射或透射特性，使得所述电信号的平均强度基本上保持恒定 扫描扫描 通过使用这种方法，当扫描光束穿过幅材的边缘时，由接收器接收的电子信号的突然变化被最小化。 耀斑的效果也降低了。

公开(公告)号：US4348114A

公开(公告)日：1982-09-07

申请号：US211159

申请日：1980-11-28

申请人： Denis M. Neale ,  Frederick J. Bontoft ,  John B. Ikin

发明人： Denis M. Neale ,  Frederick J. Bontoft ,  John B. Ikin

IPC分类号： G01N21/892 ,  H03H19/00 ,  G01N21/17

CPC分类号： G01N21/8921 ,  H03H19/00

摘要： This invention relates to a method of inspecting coated web material in order to detect the presence of downlines. The coated web material is transported past an inspection station and is inspected transversely point by point across the web width. Data signals are produced responsive to variations in coated thickness. The inspection operation is repeated as the web pass the inspection station and the data signals from points at the same distance across the web width are summed to produce an average signal waveform. Any abnormal excursions of the averaged signal waveform are registered as faults.

摘要翻译： 本发明涉及一种检查涂覆的网状材料以检测下拉线的存在的方法。 涂布的纸幅材料被运送通过检查站，并且横过纸幅宽度逐点检查。 响应于涂层厚度的变化产生数据信号。 当网络通过检查站时，重复检查操作，并将来自网幅宽度相同距离的点的数据信号相加，以产生平均信号波形。 平均信号波形的异常偏移被记录为故障。

公开(公告)号：US4372678A

公开(公告)日：1983-02-08

申请号：US241143

申请日：1981-03-05

申请人： John B. Ikin ,  Denis M. Neale, deceased

发明人： John B. Ikin ,  Denis M. Neale, deceased

IPC分类号： G03B27/54 ,  G03B27/72 ,  G03B27/76

CPC分类号： G03B27/547

摘要： An enlarger head for multigrade paper is described which comprises a light mixing system for mixing light from two sources.The system comprises disposed along a longitudinal axis a solid light-mixing member of an optically clear material which has as a light-input face a generally planar sulcated face having grooves therein of equilateral triangular cross-section and a substantially smooth light-output face, said two light sources being diametrically opposed relative to the longitudinal axis and each being adapted to direct light onto said light-mixing member from an angle substantially 60.degree. relative to said longitudinal axis, the general plane of said sulcated face of the light-mixing member being disposed normal to the said longitudinal axis and the grooves therein having smooth polished surfaces and extending normal to a plane containing both light sources and the longitudinal axis, light from the two sources passing through the light-mixing member to emerge therefrom substantially along the longitudinal axis.

摘要翻译： 描述了一种用于多级纸的放大头，其包括用于混合来自两个源的光的光混合系统。 该系统包括沿着纵向轴线布置的光学透明材料的固体光混合构件，其具有作为光输入面的大致平坦的表面，其具有等边三角形横截面的凹槽和基本平滑的光输出面， 所述两个光源相对于纵向轴线在径向上相对，并且每个光源适于将光引导到所述光混合部件上，相对于所述纵向轴线大致为60度的角度，所述光混合部件的所述沉积面的总平面 被设置为垂直于所述纵向轴线并且其中具有平滑抛光表面的凹槽并且垂直于包含光源和纵向轴线的平面延伸，来自穿过光混合构件的两个光源的光基本上沿纵向从其出射 轴。