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Class 356/638 - Shadow or beam blocking


Subclass of Class 356 - Optics: measuring and testing
Definition: Subject matter wherein measurement is determined from
No. of patents: 161
Last issue date: 04/05/2011


1          
NumberTitleIssue Date
7920278Non-contact method and system for inspecting parts
A non-contact method and system for inspecting parts using two different types of machine vision methodologies are provided. The system has enhanced versatility and includes a triangulation-based subsystem to obtain triangulation-based sensor data, a radiation plane...
04/05/2011
7777900Method and system for optically inspecting parts
A method and system for optically inspecting parts are provided. The method includes the step of supporting a part along a measurement axis. The method includes scanning the part with an array of spaced planes of radiation so that the part occludes each of the plane...
08/17/2010
7738121Method and inspection head apparatus for optically measuring geometric dimensions of a part
A method and inspection head apparatus for optically measuring geometric dimensions of a part are provided. The method optically measures the geometric dimensions of a part having a part axis at an inspection station. The method includes directing an array of spaced...
06/15/2010
7633635Method and system for automatically identifying non-labeled, manufactured parts
A method and system are provided for automatically identifying non-labeled, manufactured parts. The system includes an electronic storage device to store templates of a plurality of known good, manufactured parts. Each of the templates includes a part profile and a ...
12/15/2009
7456978Shape measuring apparatus
A shape measuring apparatus includes a point light source including a white light-emitting diode, a collimator lens for forming a parallel beam as a result of causing light emitted from the point light source to be incident upon the collimator lens, a telecentric le...
11/25/2008
7342213CMOS APS shared amplifier pixel with symmetrical field effect transistor placement
An image sensor includes a plurality of photodetectors arranged in an array; and a plurality of transistors that are functionally shared by the photodetectors, wherein a distance of each photodetector to an adjacent transistor is substantially the same. ...
03/11/2008
7333202Yarn sensor
A yarn sensor for optically scanning a yarn (3), traveling longitudinally through a measurement gap (19), includes a light source (20) projecting a beam of light into the measurement gap (19), at least one receiver (23) for directl...
02/19/2008
7312433Measuring device and method for detecting objects interrupting a beam of radiation
The invention relates to a measuring device 5 of the type which detects the interruption of a beam of radiation (e.g. light 20) by an object (50 FIG. 1) in the beam. The device includes a light emitter 12 and a light dete...
12/25/2007
7295329Position detection system
A position detection system. In representative embodiments, the position detection system comprises a support structure having a cavity, a first light source configured to emit light into at least part of the cavity, a second light source configured to emit light in...
11/13/2007
7262868Method of and apparatus for ascertaining the transverse dimensions of rod-shaped articles
The invention relates to a method of and to an apparatus for ascertaining the transverse dimensions, such as diameters, of one or more rod-shaped articles, for example, continuous or finite-length cigarette rods and/or other rod-shaped smokers' products. When the me...
08/28/2007
7259873Method for measuring the dimension of a non-circular cross-section of an elongated article in particular of a flat cable or a sector cable
Method for measuring the cross-sectional dimension of an elongated profile having rounded or sharp edges, in particular of a flat or sector cable by illuminating the article with light sources and determination of a plurality of shadow borders and calculating the pa...
08/21/2007
7256898Method and device for determining the position of rotationally drivable tools
To determine the position of rotationally drivable tools in machine tools, the moment of separation of the tool to be measured and a measuring beam, for example a laser beam of a light barrier, is used. The tool to be measured is first positioned in such a manner th...
08/14/2007
7253910Optical measuring device
An optical measuring device capable of improving the precision of detection of contamination on a protective glass is disclosed. With threshold values as large as 90%, 50%, 10% of a peak value of a scan signal, measured values Q90, Q50, Q1...
08/07/2007
7227163Product inspection system and a method for implementing same
An inspection system and a method for using the inspection system, wherein the inspection system includes a collimated light source defining a source optical path, the collimated light source being operable to cause a collimated light beam to propagate along the sou...
06/05/2007
7221462Method and device for optical detection of the position of an object
The present invention relates to a method and to a device enabling data to be input, and also to an optical system for detecting the position of an article or a member and suitable for being used (or incorporated) in such a method (or device). The technical field of...
05/22/2007
7210321Method and apparatus for measuring centerline runout and out of roundness of a shaft
The centreline runout (a) and out of roundness (b) of a shaft (100) is measured by measuring the distance between the central longitudinal axis (102) of the shaft (100) and each of a plurality of angularly spaced measurement points (103) ...
05/01/2007
7194914Apparatus and method for scanning internal structure of O-rings
Some O-rings can include internal flaws that can eventually lead to failure of the O-rings during use. In order to scan an internal structure of an O-ring, the present disclosure includes an apparatus with an apparatus body to which an O-ring support and a transduce...
03/27/2007
7161687Optical method and device for performing geometrical measurements
A light source (1) sends towards an object under test (5) a light beam (2) with such a size as to encompass the object (5). Past the object, the beam (2) is processed by an optical processing system (6), comprising a band-pa...
01/09/2007
7159594Method and device for adjusting the selecting out of winnowings
The invention relates to a method for adjusting the selecting out of winnowings in the manufacture of smokable products, in particular cigarettes, wherein the current size distribution of a stream of tobacco particles passing a measuring point, per unit of time, is ...
01/09/2007
7134343Opto-acoustoelectric device and methods for analyzing mechanical vibration and sound
An opto-acoustoelectric device encompasses a diaphragm having a diffraction grating, the diaphragm is susceptible to a vibration driven by an external force; a light source oriented to irradiate the diffraction grating; and a photo detector configured to detect the ...
11/14/2006
7131539Paper sheets corner fold detection method and paper sheets corner fold detection program
When a thickness sensor detects a corner fold in a front end part of the paper sheet being carried, a light sensor checks whether a break exists or not in the front end part. When there is no break, it means the thickness sensor does not detect a corner fold but a f...
11/07/2006
7092076Surveying instrument
A surveying instrument, comprising a collimation optical system and a visible laser projecting device with a visible laser light source unit for emitting a point light, wherein the surveying instrument comprises a photodetector for detecting a reflection light enter...
08/15/2006
7078719Optical apparatus for measuring objects having a rectilinear profile
Apparatus for measuring an object (4) with at least one rectilinear edge or profile (4a, 4b) parallel to a given direction (y), comprising: a laser source (1) which emits radiation (2, 2a) which impinges on the...
07/18/2006
7078712monitoring on an ion implanter
The present invention is directed to in-situ detection of particles and other such features in an ion implantation system during implantation operations to avoid such additional monitoring tool steps otherwise expended before and/or after implantation, for example. ...
07/18/2006
7057778Light guide, illuminating device having the light guide, and image reading device and information processing apparatus having the illuminating device
There is disclosed an illumination device in which a light guide is adapted to emit the light from a face thereof and is provided with an area, on a face opposite to the light emitting face, for diffusing and/or reflecting the light introduced into the light guide f...
06/06/2006
7021156Measurement device for determining the straightness of shafts or shaft tunnels
A device for determining the straightness of shafts or shaft tunnels in segments is used preferably in larger water craft, but can also be used for measurement of oil pipelines. A first and a second adapter which each contain an optical transmitting and receiving de...
04/04/2006
6947152High speed laser micrometer
A large profile, high speed laser micrometer is formed from a light source unit comprised of a plurality of emitter modules that combine to emit a laser sheet and a detector array comprised of a plurality of detector modules. The laser micrometer also includes a dat...
09/20/2005
6929110Coin chute with optical coin discrimination
Systems and techniques for providing an improved coin acceptor are described. In one aspect, an electronic coin acceptor exaggerates relatively small differences in coin diameters. A coin deposited into the coin acceptor passes along a coin path through two sensing ...
08/16/2005
6922254Method for measuring the diameter of an elongated article of a circular cross section
A method for measuring the diameter of an elongated article approximately circular in cross section, in particular of a wire or of a cable, which may include some or all of the following: illumination of the article with a fan-shap...
07/26/2005
6915893Method and apparatus for discriminating and counting documents
A currency evaluation device for receiving a stack of currency bills and rapidly evaluating all the bills in the stack. The device includes an input receptacle for receiving a stack of bills to be evaluated and a single output receptacle for receiving the bills afte...
07/12/2005
6912297Method of determining usability of a document image and an apparatus therefor
A method of processing a document comprises the steps of (a) scanning a document to capture image data associated with the document, (b) processing at least a portion of the captured image data to calculate a first count of pixels associated with a corner of the doc...
06/28/2005
6831287Method and apparatus for preventing transfer of an object having wrong dimensions or orientation
The invention describes an apparatus for preventing gripping of objects having wrong dimensions or orientation. The apparatus comprises a part handler, e.g., a holder for parts to be treated in a chemical reactor, where the parts has to be transferred from a working...
12/14/2004
6798528System and method for measuring the dimensions of moving packages
A system and method for measuring the dimensions of moving packages includes a computer system connected to a position tracking system and a slice measurement system. The computer system uses the position tracking system to generate a series of position measurements...
09/28/2004
6741342Using a laser beam to indicate roller wear
This invention relates to the method and apparatus for indicating roller wear in a media handling device. Such structures of this type, generally, employ the use of a laser beam that is located adjacent to the media handling device roller. Initially, the roller mate...
05/25/2004
6700671Non-contact type profile measuring apparatus
A collimator lens 13 converts a light transmitted from a light source 11 into an almost parallel light. A light receiving lens 14 receives the almost parallel light including a shadow 24 of a measurement object 23. A one-dimensional image sensor 17 receiv...
03/02/2004
6683687Method and apparatus for assessing the effect of yarn faults on woven or knitted fabrics
The assessment of the effects of yarn faults is carried out by simulating the fabric image. In a first step, the yarn is examined by a measuring member for parameters associated with the volume and/or the surface. In a second step, these parameters are co...
01/27/2004
6678063Measuring device for reinforcing steel rods for concrete
The invention relates to a method and an arrangement for optically detecting the measurements, in particular the diameters, of a long object during or after its production, which object moves forward continuously at high speed in lengthwise direction. Wit...
01/13/2004
6597464Method and device for testing a cutting-edge geometry of a rotatably drivable tool
The testing of a cutting-edge geometry of a tool takes place during time intervals that comprise time instants at which it is to be expected that a region, to be tested, of the tool enters a measuring beam. At time instants at which the tool does not ente...
07/22/2003
6542234Method of detecting the particles of a tobacco particle stream
The invention relates to a method of detecting the particles of a tobacco particle stream in the production of smokable articles by scanning by means of a fine-beam light barrier, the diameter of which is smaller than the dimensions of the tobacco particl...
04/01/2003
6496273Position determining apparatus for coordinate positioning machine
Described is a device which enables toolsetting on a machine tool. The device includes a light emitting unit (10) and a light detecting unit (14). A light source (30) causes a light beam (12) to propagate from the emitting unit (10) to the detecting unit ...
12/17/2002
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