Wavefront Aberration Measurement with Shack-Hartmann Sensor and Point Source

Shack-Hartmann 파면분석기와 점광원을 이용한 광학부품의 수차 측정

Using a Shack-Hartmann sensor, we construct an optical testing system measuring the wavefront error of small optical components. The systematic error of the sensor is compensated with a reference plane-wave system that produces almost perfect plane waves. Several types of lenses are tested using a point source that generates spherical waves emitted from a pinhole. The results of the optical testing obtained with the Shack- Hartman sensor are compared with those measured with Zygo interferometer.