Class 356/605 - Moire

Subclass of Class 356 - Optics: measuring and testing
Definition: Subject matter wherein an image of the projected pattern
No. of patents: 97
Last issue date: 11/17/2009

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Number	Title	Issue Date
7619751	High-accuracy pattern shape evaluating method and apparatus A quantity (or dispersion value) of a distribution of edge position due to random noise is expected to be reduced statistically to 1/N when N edge position data items are averaged. Using this property, the single page image is averaged in a vertical direction with v...	11/17/2009
7548324	Three-dimensional shape measurement apparatus and method for eliminating 2π ambiguity of moire principle and omitting phase shifting means A three-dimensional (3-D) shape measurement method using a Moire measurement principle and a Stereo vision measurement principle is provided. The method comprises; a first step to detect candidate points and 3D positions of the candidate points in world coordinates ...	06/16/2009
7440119	Three-dimensional shape detecting device, image capturing device, and three-dimensional shape detecting method There is provided a three-dimensional shape detecting device comprising: pattern beam projection means which projects a plurality of pattern beams including two pattern beams having different angular widths; image capturing means which captures an image of a subject...	10/21/2008
7433256	Information carrier, and system for positioning such an information carrier in a reading and/or writing apparatus The invention relates to an information carrier (101) intended to be read and/or written by a periodic array of light spots, said information carrier (101) comprising a data area (105) defined by a set of elementary data areas, a first periodic ...	10/07/2008
7433058	System and method for simultaneous 3D height measurements on multiple sides of an object An interferometric method for determining a height profile of regions of the surface area of an object or of several objects, wherein the regions are substantially in different planes, is presented. The optical path of at least one portion of intensity coming from o...	10/07/2008
7433255	Information carrier, and system for positioning such an information carrier in an apparatus The invention relates to an information carrier, and a system for positioning such an information carrier in an apparatus. This system comprises an optical element (102) for generating a periodic array of light spots (103) intended to be applied to an ...	10/07/2008
7430049	Method and device for analyzing the surface of a substrate A process for scanning a surface of a substrate, which process takes at least one reflected image of at least one test pattern on the surface and extracts by digital processing local phases in two directions. Variations in local slopes are calculated by digital proc...	09/30/2008
7430052	Method for correlating the line width roughness of gratings and method for measurement A method for correlating line width roughness of gratings first performs a step (a) generating a characteristic curve of a predetermined grating having a known line width, and a step (b) performing a comparing process to select a matching spectrum from a plurality o...	09/30/2008
7417747	Method and a device for measuring the three dimension surface shape by projecting moire interference fringe A method and apparatus for measuring contour of a full fielded 3D surface of an object. The apparatus includes a projection device having a mark point and master grating, an imaging device for imaging imaged grating and mark point which are positioned on the object ...	08/26/2008
7405835	High-accuracy pattern shape evaluating method and apparatus A quantity (or dispersion value) of a distribution of edge position due to random noise is expected to be reduced statistically to 1/N when N edge position data items are averaged. Using this property, the single page image is averaged in a vertical direction with v...	07/29/2008
7400413	Three-dimensional shape measuring apparatus using shadow moire A 3D shape measuring apparatus using a shadow moire, which can measure a 3D shape of a test object by selectively switching on/off a plurality of illuminating parts irrespective of a form of the test object is provided. The 3D shape measuring apparatus using the sha...	07/15/2008
7388679	Pattern light irradiation device, three dimensional shape measuring device, and method pattern light irradiation A light irradiation device for irradiating light having a pattern onto a physical object, includes a pattern forming plate provided with a plurality of opening portions; a light irradiation unit for irradiating light towards the pattern forming plate; and a projecti...	06/17/2008
7385709	Microscopy imaging apparatus and method for generating an image A method and a microscopy imaging apparatus for generating an optically sectioned image of a specimen are provided. The method comprises the steps of: illuminating the specimen with a modulating, spatially periodic illumination pattern; imaging said specimen on a co...	06/10/2008
7373270	Diagnosing device for stereo camera mounted on robot, and diagnostic method of stereo camera mounted on robot apparatus A diagnostic mat has a texture, which enables avoiding mismatching in diagnosis and calibration, such as uniform and unduplicated patterns, for example, random dot patterns, fractal, natural images, and the like. A robot apparatus placed on the diagnostic mat assume...	05/13/2008
7369253	Systems and methods for measuring sample surface flatness of continuously moving samples Measurement of sample surface flatness of a continuously moving sample. A conveyor continuously conveys a sample beneath a grating disposed at a non-zero angle with respect to the plane of conveyance. The relative distance between the sample and the angled grating c...	05/06/2008
7340107	Shadow-free 3D and 2D measurement system and method A shadow-free 3D and 2D measurement system combining, in one FMI set-up, a Moiré 3D lighting with other simultaneous external illuminations (for example a coaxial one or another). The reconstructed image combines the advantages of these different illuminations. The...	03/04/2008
7327473	Flatness tester for optical components Disclosed herein is a method comprising capturing an image of a grating formed on a surface of a brightness enhancing display film; measuring a displacement Δd of a fringe from the image of the grating; and determining a slope of a deviation from flatness of the br...	02/05/2008
7298499	Method and system for characterizing structural damage from observing surface distortions This process includes arranging a grid on the surface a structure to be inspected, directing a light source onto this grid so as to create a shadow on the structure, recording an image of the pattern observed, displaying a graphic representation of the image recorde...	11/20/2007
7295698	Three-dimensional image photographing apparatus and method capable of acquiring more natural pasted three-dimensional image including texture image A three-dimensional image photographing apparatus acquires an image that includes shape information and texture information of an object, and acquires a three-dimensional image of the object by utilizing the image that includes the shape information and the texture ...	11/13/2007
7292346	Triangulation methods and systems for profiling surfaces through a thin film coating An optical system includes a photolithography system, a low coherence interferometer, and a detector. The photolithography system is configured to illuminate a portion of an object with a light pattern and has a reference surface. The low coherence interferometer ha...	11/06/2007
7286246	Method and apparatus for non-contact three-dimensional surface measurement A non-contact three-dimensional surface measurement method is provided in which a grating pattern projected onto an object being measured, while the phase of the pattern is being shifted, is observed in a different direction from a projection direction to analyze th...	10/23/2007
7268893	Optical projection system There is provided an optical projection system for projecting an image onto an object that is being manufactured and/or inspected. The system includes an image-projecting device, a target-locating device for determining the orientation of the image-projecting device...	09/11/2007
7256897	Three-dimensional measurement apparatus and three-dimensional measurement method There is provided an apparatus and method for three-dimensional measurements by shining an object to be measured with plural laser beams while scanning. Even if the optical intensity of laser beams is weak, light disturbance is accurately separated to perform real-t...	08/14/2007
7242484	Apparatus and methods for surface contour measurement Apparatus and methods of measuring three-dimensional position information of a onto a surface of an object including two sources of radiation separated by a distance, each source having a spectral distribution, and being coherent with respect to the other of the sou...	07/10/2007
7230722	Shadow moire using non-zero talbot distance A method for measuring deformation in specimens is provided. The method includes providing a shadow moiré system, the shadow moiré system including an illumination source, a reference grating and an image capture device and providing a specimen. The method further...	06/12/2007
7230723	High-accuracy pattern shape evaluating method and apparatus A quantity (or dispersion value) of a distribution of edge position due to random noise is expected to be reduced statistically to 1/N when N edge position data items are averaged. Using this property, the single page image is averaged in a vertical direction with v...	06/12/2007
7228634	Using viewing-angle-sensitive visual tags to determine angular orientation and/or location One embodiment of the present invention provides a system that uses a visual tag to determine an angle. During operation, the system observes the visual tag from an observation point, wherein the visual tag includes an angle-sensitive image which changes in appearan...	06/12/2007
7201321	Electro-optically reading direct part markings on workpieces by image capture Performance of an imaging reader for electro-optically reading direct part markings on workpieces is enhanced by ensuring that such markings are read in the vicinity of an ideal, focused, target plane, and by enhancing the contrast of such markings. Calibration and ...	04/10/2007
7140544	Three dimensional vision device and method, and structured light bar-code patterns for use in the same The present invention is a system and method for three dimensional machine vision including a projector and camera. The projector casts a structured light Quadratic Residue Bar Code on the surface to be mapped. The camera then images the surface. The projected image...	11/28/2006
7126083	Chip scale marker and method of calibrating marking position A chip scale marker including a laser system, a wafer holder supporting a wafer to be processed, and a camera moving above the wafer holder by being connected to an X-Y stage and monitoring the wafer supported on a center hole of the wafer holder, the chip scale mar...	10/24/2006
7119911	Moiré deflectometer including non-mechanical, transparent, spatial light modulators for demonstrating two-axis rulings A Moiré deflectometer includes at least three non-mechanical, transparent, spatial light modulators for demonstrating two sets of patterns on two parallel planes on two of the modulators thereby creating a Moiré fringe pattern and a method for using the same. More...	10/10/2006
7095883	Moiré suppression method and apparatus A method for inspecting a display panel includes capturing images of a portion of a plurality of display panels having display elements with an image acquisition device having sensor elements, each image comprising an image of approximately a first number of display...	08/22/2006
7061628	Non-contact apparatus and method for measuring surface profile Embodiments of the invention provide a non-contact method for measuring the surface profile of an object that can include generating a point-type optical signal and projecting it on a rotatable precision optical grating, generating a rotating pattern of light and da...	06/13/2006
6999181	Advanced signal processing technique for translating fringe line disturbances into sample height at a particular position above an interferometer's sample stage A method is described that involves tracking a fringe line disturbance that has breached its field of reference. The method also involves translating each pixel location of the tracked fringe line disturbance to an x,y,zs data point. x and y represent a p...	02/14/2006
6950195	Interference measuring device In an interference measuring device, which includes: a coherent beam generating source; a sample to be measured; a lens system for forming an image of the sample to be measured on an observing plane; an interference element for splitting a coherent beam into two sys...	09/27/2005
6940609	Method and system for measuring the topography of a sample An imaging method and system are presented for detecting the topography of a sample surface. Illuminating light is directed to the sample by sequentially passing the illuminating light through a grating and an objective lens arrangement The grating has a pattern for...	09/06/2005
6940608	Method and apparatus for surface configuration measurement A method and an apparatus for surface configuration measurement of the present invention use stereoscopic lattice type of moiré optics as testing optics. The moiré optics accurately shifts moiré fringes of particular fringe order by a preselected phase without an...	09/06/2005
6937350	Apparatus and methods for optically monitoring thickness In one aspect, the invention relates to an apparatus for monitoring thickness variations of an object having first and second opposing surfaces. The apparatus includes a first source positioned to project a first fringe pattern at a first location on the first surfa...	08/30/2005
6906809	Surface shape measuring system A grating (3) is disposed to face the measurement target surface of a measurement target object (11). A light source (1) irradiates the grating (3) with illumination light. A camera (6) captures a moire fringe image formed on the g...	06/14/2005
6873421	Method and apparatus for measuring the three-dimensional shape of an object using a moire equipment An apparatus and method for measuring a three-dimensional shape of an object using a projection moiré device. The method comprises the steps of obtaining a grid pattern image projected on a reference plane of a moving table and applying a buckets algorithm thereto,...	03/29/2005

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Class 356/605 - Moire