Abstract
The measurement of the Modulation Transfer Function (MTF) has become the most accepted test in the range of quality control of optics. Years ago only high quality optics like e.g. satellite or professional camera objectives have been MTFtested. Nowadays even simple optical systems like cell phone cameras objectives are 100% tested. But not only single objectives have to be tested. If a perfect objective is badly aligned with respect to the sensor the result will be a bad MTF too. Therefore it is also recommended for the final camera inspection to measure the total MTF of the system objective plus sensor (CMOS or CCD). TRIOPTICS developed a MTF equipment to measure the MTF on 9 different field positions and different object distances of a complete camera in a few seconds. The system comprises a special target generator with slanted crosses as targets and new developed software to grab images and to calculate the MTF of the complete camera in realtime.
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