Patent application number | Description | Published |
20110069154 | HIGH SPEED, HIGH RESOLUTION, THREE DIMENSIONAL SOLAR CELL INSPECTION SYSTEM - An optical inspection system and method are provided. A workpiece transport moves a workpiece in a nonstop manner. An illuminator includes a light pipe and is configured to provide a first and second strobed illumination field types. First and second arrays of cameras are arranged to provide stereoscopic imaging of the workpiece. The first array of cameras is configured to generate a first plurality of images of the workpiece with the first illumination field and a second plurality of images of the feature with the second illumination field. The second array of cameras is configured to generate a third plurality of images of the workpiece with the first illumination field and a fourth plurality of images of the feature with the second illumination field. A processing device stores at least some of the first, second, third, and fourth pluralities of images and provides the images to an other device. | 03-24-2011 |
20110069507 | DARK FIELD ILLUMINATOR WITH LARGE WORKING AREA - An illuminator is described which may be used with large inspection areas and which provides a dark field illumination pattern that is spatially uniform, illuminates from consistent angles, has high efficiency, and is smaller than existing solutions. A light pipe has a first end proximate an object to be illuminated and a second end opposite the first end and spaced from the first end. The light pipe also has at least one reflective sidewall. The first end of the light pipe includes an exit aperture and the second end has at least one opening to allow at least one image acquisition device to view the surface therethrough. At least one light source is configured to provide illumination in the light pipe. The object is illuminated by the first end of the light pipe by illumination at a selected elevation angle and substantially all azimuth angles. | 03-24-2011 |
20110069878 | HIGH SPEED OPTICAL INSPECTION SYSTEM WITH CAMERA ARRAY AND COMPACT, INTEGRATED ILLUMINATOR - An optical inspection system is provided for inspecting a workpiece including a feature to be inspected. The system includes a workpiece transport configured to transport the workpiece in a nonstop manner. An illuminator is configured to provide a first strobed illumination field type and a second strobed illumination field type. The illuminator includes a light pipe having a first end proximate the feature, and a second end opposite the first end and spaced from the first end. The light pipe also has at least one reflective sidewall. The first end has an exit aperture and the second end has at least one second end aperture to provide a view of the feature therethrough. An array of cameras is configured to digitally image the feature. The array of cameras is configured to generate a first plurality of images of the feature with the first illumination field and a second plurality of images of the feature with the second illumination field. A processing device is operably coupled to the illuminator and the array of cameras, the processing device is configured to store at least some of the first and second plurality of images and provide the first and second pluralities to an other device. | 03-24-2011 |
20110090333 | HIGH SPEED OPTICAL INSPECTION SYSTEM WITH ADAPTIVE FOCUSING - An optical inspection system for inspecting a substrate is provided. The system includes an array of cameras configured to acquire a plurality of sets of images as the substrate and the array undergo relative motion with respect to each other. At least one focus actuator is operably coupled to each camera of the array of cameras to cause displacement of at least a portion of each camera that affects focus. A substrate range calculator is configured to receive at least portions of images from the array and to calculate range between the array of cameras and the substrate. A controller is coupled to the array of cameras and to the range calculator. The controller is configured to provide a control signal to each of the at least one focus actuator to adaptively focus each camera of the array during the relative motion. | 04-21-2011 |
20110102575 | HIGH SPEED DISTRIBUTED OPTICAL SENSOR INSPECTION SYSTEM - An electronics assembly line includes a first electronics assembly machine and a second electronics assembly machine. The first electronics assembly machine has a first electronics assembly machine outlet. The second electronics assembly machine has a second electronics assembly machine inlet and outlet. The inlet of the second electronics assembly machine is coupled to the outlet of the first electronics assembly machine by a conveyor. A first optical inspection sensor is disposed over the conveyor before the inlet of the second electronics assembly and is configured to provide first sensor inspection image data relative to a substrate that passes beneath the first optical inspection sensor in a non-stop fashion. A second optical inspection sensor is disposed over the conveyor after the outlet of the second electronics assembly machine and is configured to provide second sensor inspection image data relative to a substrate that passes beneath the second optical inspection sensor in a non-stop fashion. A computer is operably coupled to the first and second optical inspection sensors and is configured to provide an inspection result based upon at least one of the first and second inspection image data. | 05-05-2011 |
20120133920 | HIGH SPEED, HIGH RESOLUTION, THREE DIMENSIONAL PRINTED CIRCUIT BOARD INSPECTION SYSTEM - An optical inspection system includes a printed circuit board (PCB) transport and an illuminator that provides at least a first strobed illumination field. The illuminator includes a light pipe having a first end proximate the PCB, and a second end opposite the first end and spaced from the first end. An array of cameras is configured to digitally image the PCB and to generate a plurality of images of the PCB with the at least first strobed illumination field type. At least one structured light projector is disposed to project structured illumination on the PCB. The at least one array of cameras is configured to digitally image the PCB while the PCB is illuminated with structured light, to provide a plurality of structured light images. A processing device is configured to generate an inspection result as a function of the plurality of images and the plurality of structured light images. | 05-31-2012 |
20120327215 | HIGH SPEED OPTICAL SENSOR INSPECTION SYSTEM - An optical inspection sensor is provided. The sensor includes an array of cameras configured to acquire image data relative to a workpiece that moves relative to the array of cameras in a non-stop fashion. An illumination system is disposed to provide a pulse of illumination when the array of cameras acquires the image data. At least some image data includes data regarding a skip mark or barcode on the workpiece. | 12-27-2012 |
20140210993 | AUTOMATIC PROGRAMMING OF SOLDER PASTE INSPECTION SYSTEM - A system for measuring solder paste stencil aperture positions and sizes is provided. The system includes at least one camera configured to acquire images of the stencil and an alignment target. A motion system generates relative motion between the at least one camera and the stencil. A controller is coupled to and controls the motion system. The controller is configured to analyze the images to generate aperture information relative to the stencil. The aperture information is provided to automatically program a solder paste inspection system. Other features and benefits that characterize embodiments of the present invention will be apparent upon reading the following detailed description and review of the associated drawings. | 07-31-2014 |
Patent application number | Description | Published |
20130300491 | Subsea Power Switching Device and Methods of Operating the Same - It is described a switching device comprising a semiconductor switching unit; a contactor electrically coupled in series with the semiconductor switching unit; and a controller being configured for activating an electrically isolating state of the switching device and/or activating an electrically conducting state of the switching device based on a command signal or based on a comparison of a measured value and predetermined activation condition. | 11-14-2013 |
20140217947 | SHORT CIRCUIT SAFE RECTIFIER STAGE FOR A SUBSEA POWER GRID - Short circuit safe rectifier stage for a subsea power grid It is described a rectifier stage ( | 08-07-2014 |
20150008765 | Transferring Electrical Power for Subsea Applications - A method is provided for transferring electrical power. AC power is generated and guided at least partially underwater. The AC power is guided through a cable from a first end of the cable to a second end of the cable. A frequency of the AC power guided through the cable is adjusted in dependence of a length of the cable between the first end and the second end of the cable. | 01-08-2015 |
20150008766 | Method and Apparatus for Transferring Electrical Power for Subsea Applications - Methods for transferring electrical power in the sea include: generating AC power; and guiding, at least partially underwater, the AC power through a cable from a first end of the cable to a second end of the cable. A first reactor is connected near the first end of the cable and a second reactor is connected near the second end of the cable. Inductances of the first reactor and the second reactor are selected to at least partially compensate for reactive power generated in the cable. | 01-08-2015 |
20150009735 | Transferring Electrical Power for Subsea Applications - A method for transferring electrical power in the sea includes generating AC power, guiding, at least partially underwater, the AC power through a cable from a first end of the cable to a second end of the cable, and changing a frequency of the AC power guided through the cable based on a value of power consumption of a load connected to the second end of the cable. | 01-08-2015 |
20150077205 | Subsea Transformer - A subsea transformer that includes a transformer and a transformer tank adapted to accommodate the transformer is provided. The transformer tank has an opening that is sized so as to enable insertion of the transformer into the transformer tank through the opening. A closing plate is adapted to close the opening of the transformer tank. At least one component having a double barrier against ingress of an ambient medium surrounding the subsea transformer when installed subsea is mounted to the closing plate. | 03-19-2015 |