A multi-function lens test instrument is report in this paper. This system can evaluate the image resolution, image
quality, depth of field, image distortion and light intensity distribution of the tested lens by changing the tested patterns.
This system consists of a tested lens, a CCD camera, a linear motorized stage, a system fixture, an observer LCD
monitor, and a notebook for pattern providing. The LCD monitor displays a serious of specified tested patterns sent by
the notebook. Then each displayed pattern goes through the tested lens and images in the CCD camera sensor.
Consequently, the system can evaluate the performance of the tested lens by analyzing the image of CCD camera with
special designed software. The major advantage of this system is that it can complete whole test quickly without
interruption due to part replacement, because the tested patterns are statically displayed on monitor and controlled by the