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  • Using Telecentric Lenses
    systems in which the magnification of an object changes with its distance from the lens. Telecentric lenses optically correct for this occurrence so that objects remain the same perceived size independent of their distance, over a range defined by the lens. With the field of computer technology growing
  • Telecentric Lens Optimization for Machine Vision
    Industry and engineering go through many changed and require their machine vision systems to keep pace with the growing need for speed and accuracy in measurement, inspection and robotics. Today there are just as many camera lenses to choose from as camera types. Wide field, telecentric, CCTV
  • Telecentric Illumination for Vision-System Backlighting
    A special kind of backlighting can speed vision-system performance. * In a telecentric lens, the rays which pass through the center of the aperture are parallel to the optical axis in front of or behind the system. *Backlighting via telecentric lenses can eliminate the problems of diffuce sources
  • Scanning Lens Theory
    of flat field scanning lenses are: Laser Machining, Pattern Generation, Laser Writing, Engraving and Marking. Additional subclasses of scanning lenses are F-theta lenses and Telecentric lenses. whitepapers_08.indd Scanning Lens Theory. Page 1 of 2. Overview. Off axis deflection through
  • Understanding Video and Imaging Equipment
    parallax, this is a phenomenon in conventional lenses which causes a change in magnification as it moves in and out from best focus. Closer objects appear larger than objects further away. Telecentric lenses optically correct for this occurrence. Sensor Size: The size of a camera sensor's active area
  • Medical Device Link .
    . www.technomedinc.com. Automated Inspection System Uses Telecentric Lenses to Review Parts. An automated inspection system features a six-axis robot that picks up medical device parts individually and positions them in front of two high-resolution cameras with telecentric lenses. Multiple dimensions
  • Medical Device Link .
    modules, such as tomography. Image Scan Holdings plc, Melton Mowbray, Leics, UK. Digital inspection system. An eight-megapixel camera uses telecentric lenses to capture images of parts. Pattern-recognition software and image processing based on customer requirements are used to measure parts and find
  • Medical Device Link .
    , y and z axes, but also in the x and y rotation. Using these functions concurrently allows vertical wall milling. By using a telecentric scanner, the laser beam can be scanned across the surface of the work piece while at the same time the work piece is moved and tilted so that the edge of the laser

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