Aperture Size and Optical Path
Additional PlateScope Technical data:
PlateScope utilizes a large target aperture size. This gives the advantage of greater repeatability, with line screens of 150 lpi and lower. The optical path length is 190 millimeters using 2 internal precision mirrors. This permits greater Height insensitivity than with most instruments with path lengths less than 25 millimeters. Min and Max of the following:
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LPI or line screening of PlateScope?: specified as minimum of 75 lpi and maximum of 380 lpi
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Size of the true measuring spot?: approx. 1.5mm X 1.9mm
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Size of the patch you can measure?: Minimum should be a larger than the measuring spot mentioned above. The maximum is whatever you can imagine.
