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telecentric

   Also found in: Wikipedia 0.01 sec.
telecentric 
Pertains to an optical system in which its aperture stop is positioned so that the entrance pupil falls in the first focal plane, the exit pupil is at infinity, and the rays through the centre of the entrance pupil from all points on the object are parallel to the axis in the image space. Similarly, if the exit pupil lies in the second focal plane the entrance pupil will be at infinity, and the rays through the centre of the exit pupil will be parallel to the axis in the object space.


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Depending on the application, multiple sender/receiver pairs can be arranged in any position, offering a multi-axis measurement for large configurable product clearance through the use of high precision, telecentric optics.
VT-S700 uses a telecentric lens and is said to reduce image distortion and improve inspection accuracy at the edges of large field-of-view.
For 2-D measuring, the genius 3 uses a camera with a telecentric lens and 50× magnification plus image processing software with fully automatic cutting-edge-shape detection that lets Dura-Mill measure any of its tools and cutting edges.
 
 
 
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