Class 356/637 - Web

Subclass of Class 356 - Optics: measuring and testing
Definition: Subject matter comprising means for measuring the width
No. of patents: 36
Last issue date: 08/12/2008

Number	Title	Issue Date
7411206	Method and system for detecting the position of an edge of a web A method and system for determining the lateral position of an edge of a web are disclosed. The system includes an array of light transmitting elements and a corresponding array of lenses and an array of light receiving elements and a corresponding array of lenses. ...	08/12/2008
7405032	Combination of non-lithographic shrink techniques and trim process for gate formation and line-edge roughness reduction The present invention relates generally to photolithographic systems and methods, and more particularly to systems and methodologies that facilitate the reduction of line-edge roughness (LER) during gate formation in an integrated circuit. Systems and methods...	07/29/2008
7391043	Self calibrating media edge sensor Various edge detection arrangements are disclosed, including an edge detection method and arrangement that utilizes outputs of commonly illuminated reference and edge sensors as the inputs for a comparator. The reference sensor is configured to have a wide field of ...	06/24/2008
7227165	System and method for classification of timber The present invention provides a system and a method to grade a piece of wood and simultaneously to classify this piece of wood by allowing an examination of four longitudinal faces thereof, so as to determine optimal specifications for a subsequent use thereof such...	06/05/2007
7199884	Thin thickness measurement method and apparatus Techniques for non-contacting thickness or caliper measurements of moving webs or sheets employ a sensor device that includes a first sensor head and a second sensor head that are spaced apart to define a path through which the moving web travels. The sensor device ...	04/03/2007
7173269	Apparatus for processing photosensitive material and area measurement method A plurality of microswitches are arranged in a photosensitive material receiving section in a row, in a direction perpendicular to the travel direction of a printing plate. The printing plate is carried while being centered with respect to a center of a transport pa...	02/06/2007
7115889	Device and method for sensing the position of an edge of a product According to one exemplary embodiment of the present invention, a method for sensing the position of an edge of a stock being feed to a printing press is provided. The method includes the steps of providing a light source, utilizing the light source to illuminate wi...	10/03/2006
7088456	Thin film thickness measurement using multichannel infrared sensor A system and method for analyzing the characteristics of a thin film is provided. The current invention extends the capability of IR sensors to measure thin films through configuring a plurality of detection channels with appropriately chosen filters. With the multi...	08/08/2006
7075099	Method and system for detecting the position of an edge of a web A method and system for determining the lateral position of an edge of a web are disclosed. The system includes an array of light transmitting elements and a corresponding array of lenses and an array of light receiving elements and a corresponding array of lenses. ...	07/11/2006
7072051	Laser diffraction process and apparatus for width measurement of elongated objects Size distribution of elongated objects is measured by forward scattering radiation from the objects at a range of scatter angles. The scattered radiation is refracted to locations on a scatter detector based on the scatter angles and independent of the location of t...	07/04/2006
6950717	System and method for controlling width and stitch density of a fabric web A system for controlling the width and stitch density of a moving fabric web compacted by a fabric compaction system. The width control subsystem comprises a first camera which captures an image of a moving fabric web, and a first controller, wherein the first contr...	09/27/2005
6891629	Method and apparatus for detecting a substrate feature The invention is directed to a method and apparatus for detecting a substrate feature. A sensor is secured opposite the substrate. The sensor emits a signal onto the surface of the substrate. The sensor detects the amount of signal reflected from the substrate. The ...	05/10/2005
6635895	Edge scan sensor for web guiding apparatus A sensor system for determining the position of an edge of a moving web of material travelling along a predetermined travel path. the sensor system comprising a transmitter/receiver assembly, a beam reflector assembly and sensor signal processing. The tra...	10/21/2003
6459494	Width measuring apparatus The width measuring apparatus according to this invention includes a light emitting element, a pair of light receiving elements, a measurement support table for fixing them and calculating device, where a pair of partial laser beams of the laser beam from...	10/01/2002
6429944	Process and device for determining the thickness transverse profile and thickness longitudinal profile of a running strip of material A process for the determination of the thickness transverse profile and the thickness longitudinal profile of a running material strip. The process includes (a) determining the strip thicknesses in at least two measuring areas, (b) determining the longitu...	08/06/2002
5453825	Method and apparatus for controlling the transport and the positioning of sheets Method and apparatus for controlling the transport and the positioning of sheets. Using a measuring unit (2) which comprises a light source (12), an optical element (14) and photoelectric elements (16), the position of a sheet (6) is monitored and control...	09/26/1995
5321273	Document size sensing having a spectroscope A document size sensing device incorporated in an image recorder and capable of sensing a plurality of document sizes with a small number of optical elements. A sensor is made up of a single light emitting element, a spectroscope for dividing light issuin...	06/14/1994
5162873	Slab surface contour monitor A system for creating a image of the surface contours of a metal workpiece, such as a continuous cast slab, is provided including a sheet of single frequency, planar light is directed to strike a surface of the workpiece, and a video camera positioned to ...	11/10/1992
5083867	Slab surface contour monitor A system for creating a image of the surface contours of a metal workpiece, such as a continuous cast slab, is provided including a sheet of single frequency, planar light is directed to strike a surface of the workpiece, and a video camera positioned to ...	01/28/1992
5033096	Non-contact determination of the position of a rectilinear feature of an article A high resolution CCD video camera (6) is positioned and aligned with respect to an illuminated article (7) so that a straight edge of the article, or a straight line junction between a bright zone and a dark zone of its surface, crosses the field of view...	07/16/1991
4978858	Optical web detection and measurement system especially adapted for controlling replenishment of x-ray film processing chemicals In order to detect the presence and make measurements of the dimensions of web which travels along a path, for example film, such as X-ray film and equipment which develops such film, a linear array of light emitting devices (e.g. LEDs) is disposed opposi...	12/18/1990
4954719	Sheet thickness gauging method and system with auto calibration A sheet thickness gauging system locates sheet edges to measure sheet width and to calibrate the gauging procedure to take into account neck-in or lateral shifting of the sheet. Initially, and at regular intervals during extrusion, the controller, motor, ...	09/04/1990
4603956	Film-width and transmittance scanner system A replenishment control system for a graphic arts continuous-tone film processor includes a scanner which scans a light spot across the film transport path and a sensor bar for receiving the light spot. The output of the sensor bar is periodically sampled...	08/05/1986
4559452	Apparatus for detecting edge of semitransparent plane substance An apparatus for detecting an edge of a semitransparent plane substance provided with a light source array including a plurality of light sources and a photosensor array including a plurality of photosensors. A selection circuit selects a pair of one of t...	12/17/1985
4520270	Self-adjusting sensor controller A circuit for adjusting the sensitivity of a sensor which is used typically in document handling equipment is disclosed. A special application of the circuit relates to using a plurality of the sensors in a height-determining operation which is used in co...	05/28/1985
4506969	Film-width and transmittance scanner system A graphic arts film processor includes a scanner which measures the transmittance of light through the film along a line or a set of parallel lines positioned at a skew angle A with respect to the direction of film travel. A film switch is located at the ...	03/26/1985
4499383	Edge detection apparatus A method of determining the precise location of an edge of a strip with individual elements of a radiation responsive sensor to an accuracy exceeding the pitch of the elements is disclosed. The strip is scanned at least in the region of the edge with the ...	02/12/1985
4490617	Optical width measuring system using two cameras The invention proposes an electro-optical measurement system to be used to measure the width and possibly also the thickness of a strip 14 being rolled. The strip is imaged onto an electro-optical transducer each of which views the whole width of the stri...	12/25/1984
4429991	Method for detecting physical anomalies of U.S. currency Means and methods are provided for examining bills and detecting flaws therein, such as length and width variations, holes, tears and dog-ears or folded corners. Electrical signals are generated by light sensing circuits and compared with signals represen...	02/07/1984
4393313	Width detector system Apparatus for continuously measuring the width of moving strip materials and visually displaying such measurements; the same utilizing a pair of motorized edge sensors for locating and following the strip edges relative to a fixed reference datum and sign...	07/12/1983
4384303	Arrangement for determining the width of rolling mill products A method for the continuous, quasi-static and contactless determination of the width of hot rolled products within a rolling mill train, preferably of hot wide band, via diode line cameras on which the two side edges of the illuminated rolling mill produc...	05/17/1983
4319270	Surface inspection system for hot radiant material A surface inspection system detects imperfections on the surface of a hot radiant material, in which video signals for imperfections or defects are discriminated by comparison with normal level signals which are obtained through a variable area peak hold ...	03/09/1982
4196648	Automatic sawmill apparatus A cant or plank is moved forwardly on a conveyor system, where its irregular leading lateral edge is measured by a plurality of fixed scanners. In response to measurement of the cant, conveyor movement is altered for orienting the cant relative to a fixed...	04/08/1980
4067652	Method and means for the determination of a planar dimension In measuring the width of rolled stock, a photo-sensitive diode array overlying an edge of the stock is scanned to provide an indication of the position of the edge of the stock, the outputs of the diodes appearing serially to provide a waveform. To find ...	01/10/1978
4033697	Automatic exposure control for a luminous object monitor system A system for measuring a dimension, such as the width, of a hot strip of material on line, particularly steel and glass. The system utilizes two arrays of light sensitive electronically scanned detectors, placed above the hot strip and spaced apart at a d...	07/05/1977
3992107	Automatic flat width control The width of a continuously moving flat material, such as a web, or a film sheet, or a flattened tubular plastic film, in manufacture or in process, is continuously monitored by non contacting sensor means which scan the material by oscillating transverse...	11/16/1976

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Class 356/637 - Web