| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 250559010 | With circuit for evaluating a web, strand, strip, or sheet | 64 |
| 20110017927 | METHOD AND APPARATUS FOR THE MONITORING OF SAMPLE MILLING IN A CHARGED PARTICLE INSTRUMENT - An apparatus for monitoring sample milling in a charged-particle instrument has a variable-tilt specimen holder ( | 01-27-2011 |
| 20110140011 | HOT LINE DETECTION DEVICE - A light leakage generation portion is formed at a portion of connection by connecting two optical fibers so that a refractive index distribution of the optical fibers in the portion of connection is different from a refractive index distribution thereof in another portion, and a part of a light propagating a core of one optical fiber (optical fiber on the right side in the example shown) is leaked into a clad of the other optical fiber (optical fiber on the left side in the example shown). A light receiving element chip adheres to an outer circumferential surface of the clad of the other optical fiber via a transparent adhesive layer constituted by transparent adhesive so as to detect light leaked by the light leakage generation portion. | 06-16-2011 |
| 20120145931 | LITHOGRAPHY SYSTEM, MODULATION DEVICE AND METHOD OF MANUFACTURING A FIBER FIXATION SUBSTRATE - The invention relates to a charged-particle multi-beamlet lithography system for transferring a pattern onto the surface of a target. The system comprises a beam generator for generating a plurality of charged particle beamlets, a beamlet blanker array for patterning the beamlets in accordance with a pattern, and a projection system for projecting the patterned beamlets onto the target surface. The blanker array comprises a plurality of modulators and a plurality of light sensitive elements. The light sensitive elements are arranged to receive pattern data carrying light beams and to convert the light beams into electrical signals. The light sensitive elements are electrically connected to one or more modulators for providing the received pattern data. The blanker array is coupled to a fiber fixation substrate which accommodates end sections of a plurality of fibers for providing pattern data carrying light beams as an assembled group with a fixed connection. | 06-14-2012 |
| 20120187317 | Beam Distortion Control System Using Fluid Channels - Paper and continuous web scanners operate at varying and high temperature conditions that cause distortion of the support beams and ultimately misalignment of the scanner heads. Circulating a heat transfer fluid between the support beams and through segmented fluid channels within the beam allows tuning of the beam's deflection when operating in an uneven thermal environment. The heat transfer rate can be modulated through various techniques, including: (1) varying the flow rate through each channel under manual or automatic control, (2) controlling the inlet fluid temperature of each channel with fluid immersion heaters or coolers, and (3) setting up the flow sequence via distribution channels that are, for example, in parallel, serial, or mixed. | 07-26-2012 |
| 20120305815 | METHODS FOR MEASURING AT LEAST ONE PHYSICAL CHARACTERISTIC OF A COMPONENT - In some embodiments, an inspection system includes a movable collimated light source, a sensing device, a positioning device and a retention mount. The movable collimated light source defines a source optical path and is capable of causing a collimated light beam to propagate along the source optical path. The sensing device defines a sensor optical path. The positioning device includes a positioning device stage that is movably disposed relative to the positioning device, sensing device and movable collimated light source. The retention mount is non-movably disposed on the positioning device stage and disposed within the sensor optical path such that when an item is retained within the retention mount, the item blocks at least a portion of the collimated light beam. | 12-06-2012 |
| 20130214182 | DOCUMENT PHOTOSENSOR OF SURFACE-MOUNTED ELEMENTS - A document photosensor is provided which comprises a substrate | 08-22-2013 |
| 20150008346 | MEASUREMENT OF OBJECT TO BE MEASURED - A measuring device includes a first optical sensor row and a second optical sensor row between which a planar object to be measured is placed. The direction of the first sensor row and the direction of the second sensor row differ from one another. Each sensor of the first sensor row forms data representing a distance between the object to be measured and the sensor. Each sensor of the second sensor row forms data representing a distance between the object to be measured and the sensor in order to determine at least one property of the object to be measured on the basis of the data. | 01-08-2015 |
| 250559040 | Evaluation by regions, zones, or pixels | 6 |
| 20110309273 | APPARATUS AND METHOD FOR DETECTING OPTICAL ENERGY IN AN OPTICAL FIBER - An apparatus for optical signal detection may include a housing in which a channel may be defined to receive an optical fiber in a bent configuration. The channel may have a predetermined radius of curvature to cause optical energy to escape from the fiber when an optical signal is being conveyed in the fiber and be detected at a photodetector arranged at the predetermined radius of curvature. | 12-22-2011 |
| 250559050 | With imaging | 4 |
| 20100006785 | METHOD AND APPARATUS FOR THIN FILM QUALITY CONTROL - Photovoltaic thin film quality control is obtained where the thin film is supported by a support and a section of the film is illuminated by a polychromatic illumination source. The source forms on the thin film a continuous illuminated line. Discrete sampled points located on the illuminated line are imaged onto a two dimensional optical switch. A concordance look-up-table between the coordinates of the above sampled points on the thin film and their coordinates on the two dimensional optical switch are generated. The spectral composition of the illumination reflected by the sampled points is determined and photovoltaic thin film parameters applicable to the quality control are derived from the spectral composition of reflected or transmitted by the photovoltaic thin film illumination. | 01-14-2010 |
| 20100117010 | SYSTEM FOR MEASURING THE WRINKLE ON WEB IN R2R PROCESS - The present invention relates to a system for measuring wrinkles on a web in an R2R process. The system includes a laser generation device ( | 05-13-2010 |
| 20110042590 | IMAGE READING DEVICE - An image reading device comprises: a light source; a first optical element that focuses light emitted from the light source, the emitted light being reflected by a medium in a first detection area; a first detector that outputs first detection information in response to arrival of light in the first detection area; a second optical element that guides to a second detection area a portion of the light emitted from the light source, which portion does not arrive at the reflective medium in the first detection area; a second detector that outputs second detection information responsive to detection of light at the second detection area; and a generator that generates image data of the medium by revising the first detection information on the basis of the second detection information. | 02-24-2011 |
| 20110233432 | IMAGE READER - An image reader includes a first calculation unit for calculating an output value from an output value of a photodetector adjacent to a specific photodetector in read-width direction; a second calculation unit for calculating a ratio between a first value and a second value, the first value being an output value of the photodetector disposed in conveyance direction of the specific photodetector, and the second value being an output value of the photodetector adjacent, in the read-width direction, to the photodetector disposed in the conveyance direction of the specific photodetector; and a pixel correcting circuit that multiplies the values obtained by the first calculation unit and second calculation unit, substitutes the product for the output value at the pixel position of the photodetector specified by the pixel detecting circuit, and produces as a line output the substitute together with output values at pixel positions of the photodetectors not specified. | 09-29-2011 |
| 250559060 | With scanning | 1 |
| 20090256087 | Measuring Apparatus Having a Movable Measuring Device in a Press - A measuring apparatus for scanning moving, preferably sheet-like, printing materials in a printing material-processing machine, such as a press for processing sheet material. The apparatus has a measuring device which can be moved, at least in the transport direction of the printing materials. The measuring apparatus is set up in such a way that, during a measuring operation, the measuring device is moved over the moving printing material in the transport direction of the printing material with a differential speed relative to the transport speed of the printing material. | 10-15-2009 |
| 250559070 | With imaging | 8 |
| 20090121163 | Apparatus and method for detecting overlapping mail items - An apparatus for detecting overlapping flat objects, wherein each object has flat sides and narrow sides, includes a doubles detector configured to derive at least one feature of an object, a first imaging unit configured to produce an electronic image of a first flat side of the object, and a second imaging unit configured to produce an electronic image of a second flat side of the object. A determination facility of the apparatus is coupled to the first imaging unit and the second imaging unit to receive the electronic images, and to derive at least one further feature of the object. Further, a decision facility of the apparatus is coupled to the doubles detector and the determination facility to receive the least one feature and the at least one further feature of the object, and to determine whether the object is a single object or a number of objects. | 05-14-2009 |
| 20090218525 | Light guide and image reader - A rod-shaped light guide which does not cause unevenness in color at the portion near an incident face is produced by injection-molding transparent resin such as acryl and its surfaces include a light-emitting surface, a bottom face, left and right sides and end faces. One end face opposes a light emitting unit, and light scattering patterns for scattering light incident from the end face are formed on the bottom face. The light scattering patterns are different in shape between a portion near the end face as the incident face and a portion away from the end face. The light scattering patterns formed at the portion near the incident face are composed of a large number of fine hemispherical concaves, whereas the light scattering patterns at the portion away from the incident face are composed of triangular grooves or half cylindrical grooves, and the axial direction of these triangular grooves or half cylindrical grooves is equal to coincides with the width direction (sub-scanning direction) of the bottom face on which the patterns are formed. | 09-03-2009 |
| 20090294701 | Image reading apparatus and image reading method for effectively performing shading compensation - When reading the first document sheet, light intensity reference data is acquired by sampling a white reference plate while acquiring light intensity reference auxiliary data indicative of the light intensity of a light source lamp by sampling an auxiliary white reference plate. Then, just before reading the second or subsequent sheet, the auxiliary white reference plate is sampled to acquire the latest light intensity auxiliary data, followed by calculating the change amount from the light intensity reference auxiliary data. The change amount is used to correct the light intensity reference data separately for each picture element by referring to the profile data in which is stored the change amount of the sample value of each picture element corresponding to the change amount of the light intensity, followed by performing the shading compensation. By this configuration, it is possible to perform shading compensation in correspondence with the actual light intensity reduction. | 12-03-2009 |
| 20110253916 | IMAGE READING APPARATUS - An apparatus includes: a body including a port into which a medium is insertable; a light source that is provided in the body and illuminates when an image is read for the medium that has been inserted into the port; a guide and output unit that is optically connected to the light source, guides light emitted from the light source, and outputs the guided light into the port; a receiver that detects the output light; and a determiner that determines whether the medium has been inserted into the port based on a result of the detection. The light source also illuminates when the determiner makes the determination. A region in the port through which the light output from the light guide and output unit passes exists from one end to the other end of the port in a width direction being a longitudinal direction of the port. | 10-20-2011 |
| 20150090908 | Light microscope and microscopy method for examining a microscopic specimen - Examination of a microscopic specimen is described. Height information for a respective plurality of lateral regions of the specimen is obtained from each of multiple specimen recordings, in which the height information of each specimen recording is limited to a respective height measurement range and the height measurement ranges of different specimen recordings are different. An overall image is calculated from the specimen recordings, in which overall image height information of the different specimen recordings is combined. Specimen recordings are recorded at such heights that: the height measurement ranges of different specimen recordings overlap each other, common lateral regions are identified in two respective specimen recordings for which lateral regions height information could be obtained in both specimen recordings, and a link of the height information of different specimen recordings is determined on the basis of the height information of different specimen recordings for at least one common lateral region. | 04-02-2015 |
| 20150108375 | APPARATUS AND METHOD FOR MEASURING CALIPER OF CREPED TISSUE PAPER - A method includes, using at least one processing device, obtaining an image of a web of creped tissue paper and identifying a caliper measurement of the web using the image. The caliper measurement is based on a dominant frequency of the web and a standard deviation of diffusely-reflected light from the web. The dominant frequency of the web can be based on a number of crepe folds having a dominant crepe fold size that fit within a specified unit distance of the web in the image. The dominant crepe fold size can be determined using a discrete auto-covariance function of the image or a second image of the web. The standard deviation can be based on a variation of reflected light from larger crepe structures in the web. | 04-23-2015 |
| 20160084819 | METHOD AND ARRANGEMENT FOR DETECTING FREE FIBRE ENDS IN PAPER - The invention relates to a method and arrangement for detecting free fibre ends in a paper surface. The method comprises illuminating a target sample ( | 03-24-2016 |
| 250559080 | With camera | 1 |
| 20080245980 | Monitoring system for turbine engine - A monitoring system for a gas turbine or other elevated temperature environment is provided. The system has one or more photonic crystal fibers for capturing and transmitting light to an imaging camera for generation of an image. The photonic crystal fibers can be formed from a sapphire cladding. The photonic crystal fibers can be band gap fibers. The photonic crystal fibers can be arranged in a bundle, including an array or a linear bundle. | 10-09-2008 |
| 250559100 | With calibration | 4 |
| 20090008580 | FOURIER PLANE ANALYSIS AND REFINEMENT OF SLM CALIBRATION - The present disclosure relates to phase-sensitive calibration of an SLM system. In particular, it relates to selecting among local calibrations when there is more than one calibration that satisfies a calibration intensity criteria. It utilizes information available before Fourier filtering, from non-zeroth order diffraction components to counter drift among alternative local calibrations. | 01-08-2009 |
| 20090121162 | TECHNIQUE TO REMOVE SENSING ARTIFACTS FROM A LINEAR ARRAY SENSOR - Disclosed is a method and system for calibrating an image capturing sensor. The method and system include generating a test pattern on an image receiving device and measuring one or more colorimetric properties of the test pattern with an image sensor. The disclosed method and system measure the test pattern with the image sensor located in two or more different cross-process positions to determine an independent uniformity profile for the image sensor and the image rendering process. | 05-14-2009 |
| 20090289206 | Camera based vision alignment with device group guiding for semiconductor device testing handlers - A vision alignment system and method is provided. The vision alignment system includes one or more grouped alignment plates with guiding inserts configured to receive multiple devices, and groups of three actuators, configured to actuate the alignment plates to correct the position offsets of multiple devices as a group. The position offsets between the device and contactor are determined by a device-view camera during runtime and a contactor-view camera during calibration time. The vision alignment system also includes a pick-and-place handler, configured to transport devices. | 11-26-2009 |
| 20140246611 | Soiling Check of the Window of a Measuring Apparatus - A method for checking the soiling of the windows of a measuring apparatus for checking sheet material, includes having at least two sensor rows oriented transversally to the transport direction of the sheet material. Each of the sensor rows detects the light emanating from the sheet material in a certain spectral channel. For checking the soiling of the window the sensor rows detect the light at several detection times at which no sheet material is present in the capture area of the sensor rows. At least two of the spectral channels are combined with each other and the temporal variation of the intensities of the combined spectral channel is evaluated for the purpose of the soiling check. A small temporal variation of the intensity of the combined spectral channel is employed as an indicator for the presence of a soiling of the window. | 09-04-2014 |
| 250559110 | Detection of both reflected and transmitted light | 1 |
| 20160086410 | SYSTEM TO PROCESS A VALUABLE DOCUMENT - A sensing system to process at least one valuable document is described herein. The system includes a light source to generate a light beam. The system also includes at least one light pipe having one or more diverting surfaces to direct the light beam at a predetermined angle of incidence onto the valuable document. At least one reflective surface, to receive a first portion of the light beam transmitted through the valuable document and to reflect off the first portion of the light beam towards the valuable document, is included. A light detector is configured to receive at least a second portion of the light beam re-transmitted through the valuable document. | 03-24-2016 |
| 250559120 | Beam interruption or shadow | 5 |
| 20090101851 | Method for estimating thread parameters of a part - A method for estimating thread parameters of a part which moves relative to a stage and a plurality of sensors which measure the amount of radiation contained in directed planar portions of radiation unobstructed by the part is provided. The amount of radiation is representative of a respective geometric dimension of the part. The method includes obtaining calibrated part data from an inspection region between position limits of the stage. The calibrated part data includes calibrated sensor data for each sensor of the system and its corresponding coordinate system. The method further includes processing the calibrated part data to obtain intermediate data. The method still further includes analyzing the intermediate data to produce estimates of the thread parameters of the part. | 04-23-2009 |
| 20100065762 | DETECTING PRINTING PLATE EDGE ALIGNMENT - A system for detecting the alignment of a top plate placed on a plate pallet. The alignment is detected relative to predetermined coordinates of the system. The system will generally include the following components: An illumination source configured to illuminate light on at least one edge of the top plate; a scanner for acquiring scanning results of the top plate edges. The scanning result will be analyzed by an analyzing component, in order to align the top plate correctly before it is loaded into the CTP imaging device. | 03-18-2010 |
| 250559140 | With rotation of material | 1 |
| 20110260080 | SUBSTRATE HOLDING APPARATUS, AND INSPECTION OR PROCESSING APPARATUS - In order to enable high accuracy positioning and strong pressing of a substrate, the present invention provides a substrate holding apparatus including: a rotating bed having an inclined surface supporting a lower side of an outer circumferential side surface of the substrate, which bed rotates on a normal line of the substrate as the rotation axis together with the substrate; a position restriction unit rotating together with the rotating bed and restricting the substrate in a predetermined position on the rotating bed by pressing a plurality of points on the circumference on an upper side of the outer circumferential side surface of the substrate prior to the rotation; and a pressing unit rotating together with the rotating bed and pressing the substrate against the inclined surface by pressing a plurality of points on the upper side of the outer circumferential side surface of the substrate during the rotation. | 10-27-2011 |
| 250559150 | With plural detectors | 2 |
| 20090121164 | ENHANCED OPTICAL MULTI-FEED DETECTION - A multiple document feed detection system, such as for use in an automatic document processing system, is disclosed. The multiple document feed detection system includes a plurality of light sources oriented to direct light across a path of travel of documents. The system also includes a plurality of photodetectors placed adjacent to the path of travel, with each photodetector placed on an opposite side of the path of travel from a corresponding light source and oriented toward the corresponding light source. The plurality of photodetectors is configured to detect transmissivity of light emitted from the light sources through documents passing through the path of travel. The system further includes a signal detection and voting module interconnected with the light sources and the phototransistors, the signal detection and voting module configured to detect the presence of the overlapping documents passing through the path of travel. | 05-14-2009 |
| 20130043415 | POSITION DETECTION APPARATUS AND IMAGE FORMING APPARATUS - A position detection apparatus comprises a sensor unit | 02-21-2013 |
| 250559160 | Detection of diffuse light | 1 |
| 20140021378 | SOLID-STATE PHOTODETECTOR WITH VARIABLE SPECTRAL RESPONSE - A solid-state photodetector with variable spectral response that can produce a narrow or wide response spectrum of incident light. Some embodiments include a solid-state device structure that includes a first photodiode and a second photodiode that share a common anode region. Bias voltages applied to the first photodiode and/or the second photodiode may be used to control the thicknesses of depletion regions of the photodiodes and/or a common anode region to vary the spectral response of the photodetector. Thickness of the depletion regions and/or the common anode region may be controlled based on resistance between multiple contacts of the common anode region and/or capacitance of the depletion regions. Embodiments include control circuits and methods for determining spectral characteristics of incident light using the variable spectral response photodetector. | 01-23-2014 |
| 250559190 | Measuring dimensions | 4 |
| 250559260 | Longitudinal measurement (e.g., length or spacing) | 1 |
| 20120126151 | METHODS AND APPARATUS FOR DETERMINATION OF PARAMETERS RELATED TO A COILED TUBING STRING - Systems and techniques for non-contact measurement of coiled tubing motion are disclosed. In one embodiment, a system includes a laser source and a laser motion sensor. The laser source is configured to provide laser light that illuminates the coiled tubing as the tubing moves. The laser motion sensor is configured to collect and process laser speckle images and compute measurements of coiled tubing movement based on the laser speckle images. | 05-24-2012 |
| 250559270 | Thickness | 3 |
| 20080203333 | SHEET DISCRIMINATION APPARATUS AND IMAGE FORMING APPARATUS - Light is irradiated from obliquely below to an end of a sheet conveyed. The light is received by plural light receiving elements arranged at predetermined intervals above the sheet to discriminate the thickness of the sheet. Image forming conditions of an image forming apparatus are changed according to a result of the discrimination to obtain a satisfactory image quality. | 08-28-2008 |
| 20080230728 | Characterization of Fancy Yarn - According to the method for characterizing fancy yarn, at least one characteristic of the fancy yarn is scanned along the longitudinal direction of the fancy yarn. Values of the scanning are evaluated and the results of the evaluation are outputted. The results of the evaluation are the fancy yarn parameters such as base yarn mass, base yarn diameter, slub distance, mass increase (ΔM) of a slub, slub diameter increase, slub diameter, slub length (L | 09-25-2008 |
| 20090200498 | THICKNESS SENSOR FOR MEASURING THE THICKNESS OF SHEET-LIKE OBJECTS - A sensor for measuring sheet-like objects has a contact member and a screening member screening off light from a light source from a section of an array of photo sensitive elements. During an output cycle, output signals representing the light intensities received by the respective photo sensitive elements indicate where a transition from the exposed to the screened off section of the array is located. This location is determined by the position of the contact member, which is, in turn, determined by the thickness of the object with which it is in contact. When a timer is started simultaneously with the output cycle of the array and stopped when a predetermined trigger level is reached, the timer value represents a measure of the thickness of a measured object. | 08-13-2009 |
| 250559290 | Measuring position | 15 |
| 20080210894 | SEALANT DISPENSER AND CONTROL METHOD THEREOF - Disclosed is a sealant dispenser for more precisely dispensing a sealant onto a substrate, and a control method thereof. The sealant dispenser includes a stage on which a substrate is mounted; a nozzle for dispensing a sealant while making a relative motion with the substrate; a syringe coupled to the nozzle, for storing the sealant; and a distance sensor installed on both sides of a lower portion of the syringe, for measuring a vertical distance between a principal plane of the substrate and an outlet of the nozzle. According to the principles of the present invention, because the nozzle and the syringe have substantially the same central axis, the response speed of the sealant to be dispensed is increased and the start point and the end point of paste pattern are more precisely dispensed. Also, by minimizing the distance between the nozzle and a measuring point provided by the distance sensor, it becomes possible to dispense the sealant at higher precision. | 09-04-2008 |
| 20090072170 | Spatial Information Detection System - A spatial information detection system is provided, which is capable of, even when detecting spatial information from a common target space by use of a plurality of detection devices, achieving accurate detection without causing interference between the detection devices. Each of the detection devices has a light emitting source for projecting light intensity-modulated with a modulation period into the target space, a photodetector for receiving light from the target space, and an evaluation portion for detecting the spatial information of the target space from a change between the light projected from the light emitting source and the light received by the photodetector. The system comprises a timing control portion for controlling the timings of projecting the lights from the light emitting sources such that a light projection period of the light emitting source of one of the detection devices does not overlap with the light projection period of the light emitting source of another detection device. | 03-19-2009 |
| 20090134347 | Method and Apparatus for Determining a Relative Position of a Processing Head With Respect To a Substrate With a Structure - A method and apparatus wherein a substrate is provided with a preformatted structure, with structural elements arranged in a matrix, wherein the matrix extends in an X-direction and Y-direction, wherein a processing head is provided, wherein a camera is provided which is connected with the processing head and which comprises at least one series of sensors arranged along a main line, wherein the camera scans the substrate and thereby provides at least one one-dimensional camera signal, wherein, for real-time determining at least the X-position and the Y-position of the structure with respect to the camera, the said main line includes an angle with the X-direction and with the Y-direction, wherein the angle is chosen such that the camera signal contains spatially separated X-position information and Y-position information and that the X-position information and the Y-position information can be separated from the sensor signal with the aid of signal processing. | 05-28-2009 |
| 20090206284 | Systems and Methods for the Detection of Orientation Features on a Material Web - This application relates to systems and methods for the detection of orientation features on a material web. | 08-20-2009 |
| 20110031418 | OPTICAL SENSOR MEASUREMENT AND CROSSTALK EVALUATION - An apparatus for the measurement of optical sensor performance includes a light emitter, a focuser and a controller. The optical sensor comprises a plurality of pixels, which may be arranged as a pixel array. The light emitter projects a light spot onto the sensor. The focuser focuses the light spot onto a specified portion of the sensor in accordance with a control signal. The controller analyzes an output signal of the optical sensor, and generates the control signal to an accuracy substantially confining the light spot to a single pixel in accordance with the analysis. | 02-10-2011 |
| 20130270464 | SYSTEMS AND METHODS FOR THE DETECTION OF ORIENTATION FEATURES ON A MATERIAL WEB - This application relates to systems and methods for the detection of orientation features on a material web. | 10-17-2013 |
| 250559300 | With alignment detection | 1 |
| 20100133451 | PRINTING PLATE REGISTRATION - A method for determining a position of a mechanical edge of a reference edge of a sheet of recording media relative to a first edge of a drum slot in a cylindrical surface of an imaging drum, the method includes mounting the sheet of recording media on the imaging drum in an orientation wherein the reference edge extends along the cylindrical surface of the imaging drum in a substantially axial direction and wherein the reference edge extends over the first edge of the drum slot; establishing at least one acute apex diffuse light source in the slot; capturing at least one digital camera image of the reference edge and the at least one acute apex diffuse light source; and determining from the at least one digital camera image a location of at least one point on the mechanical edge. | 06-03-2010 |
| 250559320 | Measuring rate of motion or flow (change of position) | 1 |
| 20080315135 | OPTICAL ENCODER AND ELECTRONIC EQUIPMENT - This optical encoder includes a light emitting section and a plurality of light receiving elements placed so as to be aligned in one direction in an area where a light beam from the light emitting section may reach. A moving object includes a light-ON section, a light-OFF section and an index pattern section. The light receiving element outputs a first light receiving signal when the light-ON section and the light-OFF section of the moving object pass through a predetermined position corresponding to the light receiving element. The light receiving element outputs a second light receiving signal when the index pattern section of the moving object passes through a predetermined position corresponding to the light receiving element. The output section outputs an incremental channel signal indicating movement information of the moving object based on the first light receiving signal while outputting an index channel signal indicating reference position of the moving object based on the second light receiving signal. The incremental channel signal and the index channel signal are out of phase with each other. | 12-25-2008 |
| 250559360 | Edge | 4 |
| 20080203334 | POSITION DETECTING APPARATUS AND POSITION DETECTING METHOD - A position detecting apparatus includes a first illuminating unit that radiates light onto a substrate in a direction substantially parallel to the front and the rear surfaces of the substrate from the direction of a lateral face of the substrate; a second illuminating unit that radiates light onto the front surface of the substrate, in a direction substantially perpendicular to the front surface of the substrate; an image pickup unit that takes an image of the substrate from a rear surface side thereof; and an edge-position detecting unit that detects an edge position of the substrate, based on a first image that is taken while the light is being radiated from the first illuminating unit and a second image that is taken while the light is being radiated from the second illuminating unit, respectively. | 08-28-2008 |
| 20080203335 | 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 view and the edge sensor is configured to have a narrow, high gain, field of view. Therefore, the reference sensor has a broad signal response to an edge passage and the edge sensor a steep and narrow signal response. When the two signals are biased to cross each other, the comparator output changes state, indicating passage of an edge. Because the reference sensor provides a base signal level directly related to the real time illumination level that the edge sensor also receives, the reference sensor provides a switch point along the transition ramp of the edge sensor that integrates a majority of the random error sources. | 08-28-2008 |
| 20080245981 | Apparatus and method for edge detection - An edge detection system that locates the edge of a printing plate on a platesetter includes: first scratches aligned in a first direction on a support surface; a groove machined into the support surface where the groove includes two surfaces. One surface is reflective and has second scratches aligned in a second direction perpendicular to the first direction of the first scratches. The system also includes: an edge detection light source to provide a beam for scanning along a length of the support surface on a path coincident with the groove; a sensor to sense a reflected edge detection beam from the support surface; and a controller to analyze the reflected beam, where the beam reflected from the first scratches is 90 degrees out of phase with the beam reflected from the second scratches and where the beam reflected from the first scratches is high in intensity relative to the beam reflected from the second scratches. | 10-09-2008 |
| 20110001067 | FIBER OPTIC WEB EDGE SENSOR - A web edge sensor is disclosed. The web edge sensor has a light source directing light incident to an edge of a web. The edge of the web scatters the light and a sensor array that detects a first portion of the light scattered from the edge of the web and rejects a second portion to determine a position of the web edge. | 01-06-2011 |
| 250559380 | Determining range from detector | 3 |
| 20090045359 | SPATIAL INFORMATION DETECTING APPARATUS - In an apparatus using an intensity-modulated light for detection of spatial information based upon light intensity of light reflected from a target space, a timing synchronization circuit is provided to synchronize a phase of the intensity-modulated light from a light-emitting element with a timing of operating a light-receiving element receiving the intensity-modulated light. The light-receiving element is caused to operate for enabling the detection of intensity of the received light for each of a plurality of phase regions within one cycle of the intensity-modulated light. The timing synchronization circuit functions to compare a cyclic variation determining the operation of the light-receiving element with a cyclic variation associated with an output from a light-emitting element driving circuit in order to keep a constant phase difference between these two cyclic variations. | 02-19-2009 |
| 20130009078 | INSPECTION METHOD AND INSPECTION APPARATUS OF WINDING STATE OF SHEET MEMBER - Laser light is emitted to a sheet member wound on a forming drum in a range which includes the entire width of the sheet member and distance data on a distance to a reflecting surface is obtained, using a two-dimensional laser sensor which has a detection range along a drum circumferential direction, while moving either the two-dimensional laser sensor or the forming drum in a drum width direction. Further, the positions of width-directional opposite end sections of the sheet member are calculated on the basis of the obtained distance data. | 01-10-2013 |
| 20150108376 | Distance Measuring Photoelectric Sensor And Method For Controlling Light Projection Spot Thereof - Provided is a distance measuring photoelectric sensor capable of freely changing a size of a spot diameter of detection light. A distance measuring photoelectric sensor is configured by: a light emitting element which generates detection light; a light projecting lens which is arranged on an optical axis of the light emitting element and is configured to project the detection light toward a detection region; and an optical path length adjustment mechanism which adjusts an optical path length of the detection light from the light emitting element to the light projecting lens. A size of a spot diameter of the detection light to be used for measurement of the distance is freely selectable by the optical path length adjustment mechanism. | 04-23-2015 |
| 250559390 | With comparison to reference or standard | 2 |
| 20100264338 | INSPECTING AN IMPRINTED SUBSTRATE ON A PRINTING PRESS - A method of inspecting an imprinted substrate on a printing press comprises illuminating a portion of the substrate which has been imprinted with different colors at a plurality of printing units of the printing press. The method further comprises sensing light reflected by the substrate using a contact image sensor to produce data representative of the imprinted substrate, and comparing the data representative of the printed substrate with stored reference data. | 10-21-2010 |
| 20110089348 | METHOD AND APPARATUS FOR THIN FILM QUALITY CONTROL - Photovoltaic thin film quality control is obtained where the thin film is supported by a support and a section of the film is illuminated by a polychromatic or monochromatic illumination source. The illumination is positioned in certain locations including locations where the layer stack includes a reduced number of thin film layers. Such locations may be discrete sampled points located within scribe lines, contact frames or dedicated measurement targets. The light collected from such discrete sampled points is transferred to a photo-sensitive sensor through an optical switch. The spectral signal of the light reflected, transmitted or scattered by the sampled points is collected by the sensor and processed by a controller in such a way that parameters of simplified stacks are used for accurate determination of desired parameters of the full cell stack. In this way the photovoltaic thin film parameters applicable to the quality control are derived e.g. thin film thickness, index of refraction, extinction coefficient, absorption coefficient, energy gap, conductivity, crystallinity, surface roughness, crystal phase, material composition and photoluminescence spectrum and intensity. Manufacturing equipment parameters influencing the material properties may be changed to provide a uniform thin film layer with pre-defined properties. | 04-21-2011 |
| 250559400 | With indication of presence of material or feature | 11 |
| 20080245979 | Gloss and differential gloss measuring system - A system is provided for measuring gloss and spatial dependence of gloss. In a first embodiment, the system comprises: a first illuminator configured to emit a first light beam at a point on a target, thereby producing a generally specular reflectance in a first direction; a second illuminator configured to emit a second light beam at the point on the target, thereby producing generally diffuse reflectance in the first direction; a linear array sensor configured to detect the generally specular reflectance and the generally diffuse reflectance in the first direction; and a processor configured to process the generally specular reflectance and the generally diffuse reflectance detected by the linear array sensor. In a second embodiment, the system comprises: an illuminator configured to emit a beam of light at a point on a target, thereby producing a generally specular reflectance in a first direction and generally diffuse reflectance in a second direction; a first linear array sensor configured to detect the generally specular reflectance in the first direction; a second linear array sensor configured to detect the generally diffuse reflectance in the second direction; and a processor configured to process the generally specular reflectance detected by the first linear array sensor and the generally diffuse reflectance detected by the second linear array sensor. | 10-09-2008 |
| 20090050826 | METHOD AND DEVICE FOR THE CONTACTLESS DETECTION OF FLAT OBJECTS - The invention relates to a method and a device for the contactless detection of flat objects, particularly in sheet form, such as paper, films, foils, plates, labels, splices, break points, tear-off threads and similar flat materials or packs. | 02-26-2009 |
| 20100051835 | THIN SUBSTRATE PITCH MEASUREMENT EQUIPMENT - The present invention provides an equipment for measuring the vertical distance or pitch between a plurality of thin substrates inside a container body, including an optical component to transmit a light beam to a thin substrate in the container body and receive light beam reflected from the thin substrate, a scanning device to drive the optical component to move along vertical direction of the thin substrates for measuring the vertical distance or pitch between the plurality of thin substrates in the container body, and a rotation base to carry and rotate the container body to a plurality of angles for the plurality of thin substrates inside the container body to be measured from different angular positions. | 03-04-2010 |
| 20100270484 | Product inspection system and a method for implementing same - A system and method for measuring the physical characteristics of a component where the system includes an electromagnetic radiation source defining a source optical path, the electromagnetic radiation source being operable to cause electromagnetic radiation to propagate along the source optical path, a sensing device defining a sensor optical path, a system support structure, a base structure, an electromagnetic radiation source mounting structure and a sensing device mounting structure, a positioning device including a positioning device stage, wherein the positioning device stage is movably disposed and a retention mount disposed on the positioning device stage, the retention mount being disposed within the sensor optical path such that when a component is retained within the retention mount, the component blocks at least a portion of the electromagnetic radiation to generate a silhouette, wherein the sensing device generates data responsive to the silhouette. | 10-28-2010 |
| 20120097872 | DETECTING APPARATUS AND IMAGE FORMING APPARATUS - A detecting apparatus includes: a transmission member that is provided facing a conveying path on which a medium is conveyed and that transmits light from the medium being conveyed on the conveying path; a detecting section that detects the medium or an image on the medium from the light which is transmitted through the transmission member, wherein the light is received by a light-receiving member of the detection section; an opposing member that is provided on an opposite side of the conveying path from the transmission member and has at least a first opposing surface that faces the transmission member; and a guide member provided at a downstream side of the opposing member in the conveying direction, and guides the medium downstream in the conveying path. The opposing surface is closer to the detecting section at a downstream side than at an upstream side thereof in the conveying direction. | 04-26-2012 |
| 20120153192 | MEDIA SENSING SYSTEM FOR A PRINTER - In one example, a media sensing system for a printer includes: a light source; a light sensor for receiving light from the light source; and a portable filter removably supported between the light source and the light sensor. The filter is configured to reduce the amount of light received by the light sensor from the light source. In another example, a method for aligning a media sensing system includes: a light source emitting light toward a light sensor; filtering the emitted light before it reaches the light sensor; the sensor sensing filtered light; and, if a desired amount of filtered light is not sensed by the sensor, then adjusting the position of the light source and/or the light sensor until the desired amount of filtered light is sensed by the sensor. | 06-21-2012 |
| 250559410 | With foreign particle discrimination circuitry | 1 |
| 20140084189 | Tape Detector - A device and a system for detecting a tape or a piece of glue on a document and methods for detecting a tape or a piece of glue on a document are described. The device comprises at least one light source, at least one light receiver and at least one light barrier. The at least one light source is arranged on a first side of the at least one light barrier and the at least one light receiver is arranged on a second side of the at least one light barrier opposite to the first side. The light barrier is configured to come into contact with a document to prevent or reduce light emitted from the light source on the first side of the light barrier to be transmitted to the light receiver on the second side of the light barrier. | 03-27-2014 |
| 250559420 | Discontinuity detection (e.g., hole, crack) | 2 |
| 20130099142 | TOP OF FORM SENSOR - A sensing apparatus operable for sensing top of form indicators on media within a print station is provided. The sensing apparatus generally including a base and a cover hingedly attached to each other and being operable for manipulation between an open and closed position, a flexible circuit affixed to the interior surfaces of the base and cover, the flexible circuit comprising an array of optical sensing devices, and an interface connector integral the base for connection to a control unit of a print station. The optical sensing devices generally include any one of light emitting diodes and photo sensors and are operable for the detection of holes, notches, black marks and gaps located on a media passing through the sensing apparatus. | 04-25-2013 |
| 20180025571 | BANKNOTE CRACK DETECTION METHOD AND APPARATUS | 01-25-2018 |
| 250559450 | With defect discrimination circuitry | 2 |
| 20080296521 | METHOD AND SYSTEM FOR REDUCING OR ELIMINATING UNCONTROLLED MOTION IN A MOTION CONTROL SYSTEM - A method and system for reducing or eliminating uncontrolled motion in a motion control system is disclosed herein. The method includes defining at least one closed motion control loop. The motion control loop comprises a plurality of feedback control loops. The method further includes detecting a faulty feedback control loop from among the plurality of feedback control loops based on a faulty feedback signal. Once the faulty feedback signal is detected, the faulty feedback signal in the faulty feedback control loop is swapped to an operative feedback signal while the motion control loop is active. In an embodiment the motion control loop includes a velocity feedback control loop and a position feedback control loop. | 12-04-2008 |
| 20090140180 | INSPECTION APPARATUS AND INSPECTION METHOD - Reflected light caused by the state of the surface of a wafer, a foreign material or a defect is superimposed on a haze frequency component caused by the type and thickness of a film or a surface irregularity. It has therefore been difficult to accurately measure the haze frequency component by use of a fixed threshold value. In order to detect a haze frequency component caused by a haze present on the surface of an object to be inspected, light propagating from the object to be inspected is detected and converted into an electric signal. The electric signal is sampled at a predetermined sampling time interval and converted into digital data. A frequency component caused by a foreign material, a defect or the like is separated from the digital data to ensure that a haze frequency component is selected. The haze frequency component is caused by a stain attached to the surface of the wafer, hazy tarnish, a surface irregularity or the like. | 06-04-2009 |
