Abstract:
A technique for providing high-contrast images of defects in solar cells and solar panels, by illuminating each cell under inspection with broadband infrared radiation, and then forming an image of radiation that is secularly reflected from the cell. Multi-junction solar cells have a metal backing layer that secularly reflects the illumination back into an appropriately positioned and aligned camera, selected to be sensitive to infrared wavelengths at which the solar cell materials are relatively transparent.
Abstract:
An apparatus for optical examination of documents. The apparatus includes a light source, a viewing unit having a window through which light emitted from the light source exits for examination of documents by an observer. A method for optical examination of a document. The method steps include: providing a light source; emitting light from the light source into a viewing unit; emitting light from the viewing unit through a window; applying fluid to a document to be viewed; and, bringing the document into contact with the window such that an observer can examine the document.
Abstract:
A technique for providing high-contrast images of defects in semiconductor devices (10) and arrays of such devices (10), by illuminating each semiconductor device (10) under inspection with broadband infrared radiation, and then forming an image of radiation that is specularly reflected from the semiconductor device. Many semiconductor devices and arrays of such devices have a metal backing layer (16) that specularly reflects the illumination back into an appropriately positioned and aligned camera (14), selected to be sensitive to infrared wavelengths at which the semiconductor device (10) materials are relatively transparent.
Abstract:
A technique for providing high-contrast images of defects in semiconductor devices and arrays of such devices, by illuminating each semiconductor device under inspection with broadband infrared radiation, and then forming an image of radiation that is specularly reflected from the semiconductor device. Many semiconductor devices and arrays of such devices have a metal backing layer that specularly reflects the illumination back into an appropriately positioned and aligned camera, selected to be sensitive to infrared wavelengths at which the semiconductor device materials are relatively transparent.
Abstract:
A technique for providing high-contrast images of defects in solar cells and solar panels, by illuminating each cell under inspection with broadband infrared radiation, and then forming an image of radiation that is secularly reflected from the cell. Multi-junction solar cells have a metal backing layer that secularly reflects the illumination back into an appropriately positioned and aligned camera, selected to be sensitive to infrared wavelengths at which the solar cell materials are relatively transparent.
Abstract:
An apparatus for measuring the relative coverage of a predetermined portion of a sheet of translucent material with an opaque medium such as ink or photographic emulsion, comprising: a light source for providing a relatively constant intensity source of light over a predetermined measuring area; a positioning device for positioning the predetermined portion of the sheet of material to be measured over the predetermined measuring area of the light source; a light measuring device for measuring the relative amount of light from the light source which is transmitted through the predetermined portion of the sheet of material to be measured, whereby the relative amount of opaque medium coverage of the portion of the sheet to be measured is readily determinable by comparison of the measured amount of light transmitted through the predetermined portion of the sheet to be measured with predetermined calibration values.
Abstract:
A method and a device for measuring at least one property of a moving web, wherein the web (W) is illuminated with a light source (1) and detected with a camera (2) substantially at the illuminated area. A diode laser light source is used for illuminating the web (W).
Abstract:
A technique for providing high-contrast images of defects in solar cells and solar panels, by illuminating each cell under inspection with broadband infrared radiation, and then forming an image of radiation that is secularly reflected from the cell. Multi-junction solar cells have a metal backing layer that secularly reflects the illumination back into an appropriately positioned and aligned camera, selected to be sensitive to infrared wavelengths at which the solar cell materials are relatively transparent.
Abstract:
A technique for providing high-contrast images of defects in solar cells (10) and solar panels, by illuminating each cell under inspection with broadband infrared radiation, and then forming an image of radiation that is sepcularly reflected from the cell. Multi-junction solar cells have a metal backing layer that sepcularly reflects the illumination back into an appropriately positioned and aligned camera (14), selected to be sensitive to infrared wavelengths at which the solar cell materials are relatively transparent.
Abstract:
A system and method is disclosed for imaging and scanning a plurality of plants to capture information related to plant performance. Plants move through the system on a conveyor belt in specialized plant container pot holders.