| QUALITY VISION INTERNATIONAL, INC. Patent applications |
| Patent application number | Title | Published |
|---|
| 20120127468 | THROUGH-THE-LENS ILLUMINATOR FOR OPTICAL COMPARATOR - An illumination system shares portions of an objective of an optical inspection system. A plurality of beam-shaping optics collects light from a plurality of effective light sources and directs the light through a portion of the objective for illuminating an object under inspection. The objective includes a front relay lens, a rear relay lens, and an objective stop disposed between the front and rear relay lenses for collecting light scattered from the object and forming an image of the object with the collected light. The beam-shaping optics, which surround the objective stop, are arranged together with the associated effective light sources for non-uniformly distributing light within a range of angles required for illuminating the object. | 05-24-2012 |
| 20120002039 | DOCKABLE BACKLIGHT - A machine vision system includes a table having a fixture for supporting an object under inspection above the table, a gantry supporting a camera further above the table, a docking station, and a profile light movable together with the gantry between an inspection position beneath the object and a docking position next to the docking station. Fittings are provided for releasably securing the profile light to the gantry and for releasably securing the profile light to the docking station. The profile light can be disengaged from the gantry and engaged with the docking station for moving the profile light to the docking position or disengaged from the docking station and reengaged with the gantry for moving the profile light to the inspection position. | 01-05-2012 |
| 20110191057 | GRAPHIC ANIMATION OF GEOMETRIC DIMENSIONING AND TOLERANCING - A graphical representation of a feature and associated tolerance includes a graphical representation of a nominal definition of the feature; and a graphical representation of the tolerance zones, derived from the nominal definition of the feature. | 08-04-2011 |
| 20110120240 | BREAK AWAY SLIDE MECHANISM WITH ENHANCED POSITIONING ACCURACY - An actuator for selectively extending and retracting a probe in a measuring instrument comprises an actuator body, a carriage having a first aperture slidably attached to the body, and a second aperture receiving a probe holder having a probe. The first aperture of the carriage, which surrounds the actuator body, includes a first plurality of magnets disposed around an inner circumference of the aperture. The actuator body includes a lead screw, a round lead screw nut mated with the lead screw, and a second plurality of magnets arranged on a periphery of the lead screw nut, generally aligned with the first plurality of magnets. The magnets are arranged so that the carriage may be displaced with respect to the actuator body a sufficient amount that the magnets do not significantly restrain the further movement of the carriage. | 05-26-2011 |
| 20110001973 | OPTICAL COMPARATOR WITH DIGITAL GAGE - An optical comparator arranged for rear projection onto a viewing screen combines an optical projector that projects an optical image of a test part under inspection onto the viewing screen with a video projector that projects an optical image of a pixilated template pattern containing illustrated specifications of the test part onto the same viewing screen. The images of the test part and the pixilated template pattern are projected concurrently onto the viewing screen for visually comparing the form of the test part against its specified form. | 01-06-2011 |
| 20100104216 | COMBINING FEATURE BOUNDARIES - A method of forming a combined feature boundary based on boundaries of first and second overlapping features includes dividing the boundaries of the first and second overlapping features into line segments of known shape, identifying crossing points formed by the line segments, calculating parametric coordinates of the crossing points, and determining a sequence of crossing point evaluation based on the parametric coordinates. The method also includes calculating a first cross product based on the line segments forming a first crossing point in the determined sequence, and choosing a first path of the combined feature boundary according to a mathematical sign of the first cross product, the first path extending from the first crossing point to the second crossing point in the determined sequence. The method further includes calculating a second cross product based on the line segments forming a second crossing point in the sequence, and choosing a second path of the combined feature boundary extending from the second crossing point according to a mathematical sign of the second cross product, wherein the combined feature boundary includes the first and second crossing points and portions of at least one of the first and second feature boundaries defining the first and second paths. | 04-29-2010 |
| 20100039714 | SYSTEM AND METHOD FOR FOCAL LENGTH STABILIZATION USING ACTIVE TEMPERATURE CONTROL - An optical metrological system having a heat-generating light source coaxially mounted near a heat-sensitive lens. The system uses a temperature sensor to monitor the lens temperature and a heating element to heat the lens such that the lens operating temperature is greater than a maximum operating temperature of the light source in order to stabilize the focal length of the lens. | 02-18-2010 |
| 20090153860 | OPTICAL COMPARATOR USING LIGHT- EMITTING DIODE LIGHT SOURCES - The invention provides a source of illumination comprising a base having mounted thereon at least one light-emitting diode light source, a parabolic reflector mounted on the base and surrounding the at least one light-emitting diode, and a transmissive diffuser at the narrow end of the parabolic reflector. | 06-18-2009 |
| 20090153839 | PARTIAL COHERENCE INTERFEROMETER WITH MEASUREMENT AMBIGUITY RESOLUTION - A partial coherence interferometer incorporates a focusing system for resolving measurement ambiguities. A focus-sensing beam is directed through a common objective with the measurement beam of the interferometer for conveying the beams to and from a test surface. An unambiguous measuring range is equated to a predetermined range of focusing errors. | 06-18-2009 |
| 20090073419 | DUAL RESOLUTION, DUAL RANGE SENSOR SYSTEM AND METHOD - A distance detecting arrangement employs at least two sensors having different ranges and resolutions of operation. Embodiments disclosed contemplate at least four modes of operation. In a first mode, only one sensor is employed. In a second mode, a longer range and lower resolution sensor is employed until a threshold value of distance is reached, at which point a shorter range and higher resolution sensor is employed. In a third mode, both the longer range and shorter range sensors are employed simultaneously. In a fourth mode, a low resolution profile is used to rescan the object with the high resolution sensor to provide a high resolution profile measurement. Embodiments facilitate the method disclosed by including a beam redirecting apparatus and preferably include a servo position system that can move the sensors and the object relative to each other. | 03-19-2009 |
| 20080304168 | SYSTEM AND METHOD FOR FOCAL LENGTH STABILIZATION USING ACTIVE TEMPERATURE CONTROL - An optical metrological system having a heat-generating light source coaxially mounted near a heat-sensitive lens. The system uses a temperature sensor to monitor the lens temperature and a heating element to heat the lens such that the lens operating temperature is greater than a maximum operating temperature of the light source in order to stabilize the focal length of the lens. | 12-11-2008 |
| 20080249731 | FITTING MEASURED DATA POINTS TO TOLERANCE ZONES HAVING REGARD FOR THE UNCERTAINTY OF THE MEASUREMENTS - Measurement data collected within a measurement frame of reference is fitted to geometric tolerance zones having regard for the uncertainties of the measurement. Geometric freedoms for fitting the measurement data are exploited to fit uncertainty zones associated with the measurement data within the tolerance zones. Typically, the measurement data is multidimensional and the uncertainty zones have different sizes. | 10-09-2008 |
