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| Number | Title | Issue Date |
| 7379194 | Method and system for determining mail piece dimensions using swept laser beam A method of measuring a mailpiece includes deflecting a laser beam through an arc, determining an angle at which the laser beam is currently directed, and calculating a dimension of the mailpiece based at least in part on the determined angle. ... | 05/27/2008 |
| 7348545 | System and method for optical encoding on two opposed surfaces of a pattern medium An optical encoder system is disclosed with a single pattern medium having a first coded pattern disposed on the first side, a second coded pattern disposed on the second side, a first optical encoder disposed toward the first side, and a second optical encoder disp... | 03/25/2008 |
| 7202953 | Scanning microscopic method having high axial resolution The invention relates to a method for optically detecting at least one entity which is arranged on a substrate. The at least one entity is scanned with a measuring volume using at least one radiation source and a confocal optic. During a scanning process an auxiliar... | 04/10/2007 |
| 7062396 | Apparatus for optical proximity correction, method for optical proximity correction, and computer program product for optical proximity correction An apparatus for optical proximity correction according to an embodiment of the present invention has a data collector configured to collect source data of a circuit pattern, an edge line detector configured to detect edge lines each of which has a size that is less... | 06/13/2006 |
| 7058923 | OPTICAL PROXIMITY EFFECT CORRECTING METHOD AND MASK DATA FORMING METHOD IN SEMICONDUCTOR MANUFACTURING PROCESS, WHICH CAN SUFFICIENTLY CORRECT OPTICAL PROXIMITY EFFECT, EVEN UNDER VARIOUS SITUATIONS WITH REGARD TO SIZE AND SHAPE OF DESIGN PATTERN, AND SPACE WIDTH AND POSITION RELATION BETWEEN DESIGN PATTERNS An optical proximity effect correcting method in a semiconductor manufacturing process includes adding, detecting, judging, and deleting. The adding includes adding a first correcting region around a portion of a first design pattern. The portion faces a second desi... | 06/06/2006 |
| 7039228 | System and method for three-dimensional surface inspection An optical inspection system and method for inspecting a component on a printed circuit board (PCB) which determines three-dimensional information in a single scan. A first visual light source illuminates the PCB surface and component with a green light while a seco... | 05/02/2006 |
| 6994619 | Optical sash sensing system for fume hoods A fume hood optical sash sensing system for controlling the flow of air into a fume hood to maintain a constant face velocity by utilizing an optical sensing device mounted inside the fume hood that can sense the movement of a sash based on repeatable reflexive tape... | 02/07/2006 |
| 6974949 | Position sensor with an optical member of varying thickness A position sensor device that produces a variable output voltage when using a light emitting diode, such as an infrared light emitting diode (IR-LED), and a phototransistor further includes the use of a semi-transparent piece of material having a varying thickness t... | 12/13/2005 |
| 6927378 | Apparatus and method for monitoring of cathode ray tube panel manufacturing to reduce CRT cost and improve performance and yield A monitoring apparatus and method for measuring light output gradient of a faceplate panel includes a top plate having a center detector and a plurality of corner detectors mounted along a major surface thereof. Lenses are optically coupled to a respective detector,... | 08/09/2005 |
| 6909540 | Microscope objective, microscope, and method for imaging a specimen A microscope objective that comprises an objective housing and contains several lens elements, at least one lens element being arranged displaceably in motor-driven fashion within the objective housing, is disclosed. A microscope and a method for imaging a specimen ... | 06/21/2005 |
| 6906312 | Scanning microscope having a microscope stand A scanning microscope has a microscope stand and a light source that emits an illuminating light beam for illumination of a sample. The illuminating light beam is scanned over a sample with a beam deflection device, arranged in the microscope stand. A Bauernfeind pr... | 06/14/2005 |
| 6907596 | Mask data generating apparatus, a computer implemented method for generating mask data and a computer program for controlling the mask data generating apparatus A mask data generating apparatus comprising: a division module configured to extract a line segment and dividing the extracted line segment into a suitable length; a correction value calculation module configured to calculate correction value calculating points from... | 06/14/2005 |
| 6825936 | High speed camera based sensors Disclosed herein are TV Camera based electro-optical sensors, providing affordable methods and apparatus for high speed determination of dimensions and other features of objects. Preferred embodiments utilize addressable line or pixel based cameras to effect triangu... | 11/30/2004 |
| 6809650 | Method and device for determining the state of a rail stretch A method and a device for determining the state of a rail stretch utilize a receiver that is moved along the rail stretch to receive radio signals transmitted by at least three transmitters mounted in the elevator shaft. Spacing data is determined from the radio sig... | 10/26/2004 |
| 6801875 | Methods, systems, and software for performing measurements Methods of measuring widths of illumination spots and distances between two points, and predicting detected signal widths are provided. Systems, software, and kits for performing the methods of the invention are also provided. ... | 10/05/2004 |
| 6657217 | Probe for sensing movement in a compressor system A probe is used to detect axial movement of a rotating part such as a shaft. The probe includes a probe tube portion that protrudes into an annular groove on the rotating part. When the rotating part moves axially, one or the other side surfaces of the gr... | 12/02/2003 |
| 6657218 | Method and apparatus for measuring gap, method and apparatus for measuring shape and method for manufacturing liquid crystal device A gap measuring method characterized by comprising the steps of: applying a plurality of color lights to a member provided with a gap, to produce color interference fringes; obtaining respective intensities of the color lights in the images of the interfe... | 12/02/2003 |
| 6630657 | Method and system for electrically controlling the spacing between micromechanical electrodes The invention relates to a method for controlling by electrical means the interelectrode distance of such a micromechanical electrode structure [(7,8)] in which at least one electrode [(7)] is attached elastically suspended on the surrounding structure, w... | 10/07/2003 |
| 6570650 | Apparatus and methods for reducing thin film color variation in optical inspection of semiconductor devices and other surfaces Disclosed are methods and apparatus for designing an optical spectrum of an illumination light beam within an optical inspection system. A set of conditions for inspecting a film on a sample by directing an illumination light beam at the sample is determi... | 05/27/2003 |
| 6570174 | OPTICAL PROXIMITY EFFECT CORRECTING METHOD IN SEMICONDUCTOR MANUFACTURING PROCESS, WHICH CAN SUFFICIENTLY CORRECT OPTICAL PROXIMITY EFFECT, EVEN UNDER VARIOUS SITUATIONS WITH REGARD TO SIZE AND SHAPE OF DESIGN PATTERN, AND SPACE WIDTH AND POSITION RELATION BETWEEN DESIGN PATTERNS An optical proximity effect correcting method in a semiconductor manufacturing process includes adding, detecting, judging, and deleting. The adding includes adding a first correcting region around a portion of a first design pattern. The portion faces a ... | 05/27/2003 |
| 6486487 | Apparatus and method for measuring and selectively adjusting a clearance A technique for measuring and selectively adjusting a clearance between a stationary object and desirably a rotating object includes a non-contact, sensing system having a sensor attachable to the stationary object, a mask having a predetermined sized vie... | 11/26/2002 |
| 6462349 | Measuring spacing between two surfaces via evanescent coupling A near-field optical system having a mechanism to determine a spacing between an optical surface and a reflective surface that are spaced by less one wavelength by using coupled radiation energy that has an evanescently-coupled portion.... | 10/08/2002 |
| 6444996 | Apparatus and method for the detection of an edge of an object A method and apparatus for the detection of an edge of an object, with at least two photoelectric barriers, having at least one sender and at least one receiver apparatus as well as at least one common evaluation electronic unit for the detection of the e... | 09/03/2002 |
| 6404506 | Non-intrusive laser-based system for detecting objects moving across a planar surface In current practice, quantitative traffic data is most commonly acquired from inductive loops. In addition, video-image processing or time-of-flight laser systems can be used. These methods all have problems associated with them. Therefore, we have develo... | 06/11/2002 |
| 6222899 | System for determining the deployed length of a flexible tension element The present invention provides a system for determining the deployed length of a flexible tension element such as cable which is wrapped in a pack and fed through a funnel. The element may be sensed using different types of sensors such as optical, acoust... | 04/24/2001 |
| 6215553 | Width measurement of an image-bearing sheet A processed sheet of photographic film is guided into a channel of scanning equipment in which it is subjected to light from an elongate fluorescent tube. Light transmitted through the film is detected by a sensing arrangement in the form of an elongate s... | 04/10/2001 |
| 6201604 | System for the measurement of the cut length of moving articles A system and process are described in which moving articles that are cut during a manufacturing process have their cut length measured with the use of an electronic light emitting scanner in combination with a light receiver. Accurate cut length measureme... | 03/13/2001 |
| 6052192 | System for the measurement of the cut length of moving articles A system and process are described in which moving articles that are cut during a manufacturing process have their cut length measured with the use of an electronic light emitting scanner in combination with a light receiver. Accurate cut length measureme... | 04/18/2000 |
| 5894801 | Methods and systems for sensing and rectifying pellet shaped articles for subsequent processing A dispenser dispenses pellet shaped articles onto a conveyer. The conveyer conveys the pellet shaped articles past a video sensor that senses any pellet shaped articles needing rotation so that they are uniformly oriented. The sensor provides a signal to ... | 04/20/1999 |
| 5867274 | System for the measurement of the cut length of moving articles A system and process are described in which moving articles that are cut during a manufacturing process have their cut length measured with the use of an electronic light emitting scanner in combination with a light receiver. Accurate cut length measureme... | 02/02/1999 |
| 5777746 | Apparatus and method for dimensional weighing utilizing a mirror and/or prism The invention is a method and apparatus for measuring the dimensions of a parcel. The invention begins by placing a parcel in a corner of a field of measurement comprising a flat surface which is preferably a weighing scale, and meeting two upright adjace... | 07/07/1998 |
| 5693933 | Device for dtecting the size of an original document in a document reader A document reading device comprises a plurality of distance sensors, an original document size detection board, and a main unit control board. The plurality of distance sensors measure distance as for each certain position of an original document table. T... | 12/02/1997 |
| 5627647 | High speed laser/air slide dimensional measurement tool A method and apparatus for measuring the x-y-z dimensions of an article such as a ceramic chip carrier are provided. The measuring apparatus and method utilize scanning laser beams to measure the dimensions of the article without physically contacting the... | 05/06/1997 |
| 5564846 | Printer with sheet positioning marks control The printer is provided with a detection data storage area section comprising sixteen storage areas for storing detection data from a transmission type sensor for every 1-step driving of a feed motor. When the difference between the last detection data an... | 10/15/1996 |
| 5559341 | System for detecting defects in articles using a scanning width which is less than width of portion of the article scanned An apparatus for sensing the deflection of a beam directed at an article detects slight deflection of the beam when the beam is directed at a large angle of incidence. The large angle of incidence increases the apparatus sensitivity to detect certain char... | 09/24/1996 |
| 5502313 | Exposure apparatus and method having a measuring unit for measuring distances between a mask surface and a projection optical system An exposure apparatus includes a projection optical system for projecting a pattern on a mask onto a photosensitive substrate and a measuring unit for measuring distances between the mask and the projection optical system at a plurality of positions withi... | 03/26/1996 |
| 5493401 | Method of measuring film thicknesses Light of an observation wavelength range is irradiated upon a sample object to measure spectral reflection ratios, and an waveform is developed from the spectral reflection ratios. Based on the total number of peaks and valleys found in the interference w... | 02/20/1996 |
| 5483893 | Control system and method for automatically identifying webs in a printing press A continuous web printing press (100) having a control system (202) for automatically identifying which one of a plurality of paper webs (108, 120) is running through which one of a plurality of compensators (146, 148) is provided. First and second markin... | 01/16/1996 |
| 5448362 | Non-contact measurement of displacement and changes in dimension of elongated objects such as filaments Methods and apparatus for measuring the lateral displacement and changes in the lateral dimension of thin long objects, particularly filament materials such as wire or various fibers. The material may move quasi-statically or at a high rate of speed. The ... | 09/05/1995 |
| 5435543 | Motion indicating device for moving objects A motion indicating device used especially to monitor the movement of sheets of paper, which are moved via conveyor paths. A scanning device has a rotatably mounted scanning member, which lies on the scannable surfaces of the moving sheet of paper and is ... | 07/25/1995 |
