Failing Good Parts? Maybe the Problem Is Retrace Error
Retrace error is rarely specified for an interferometer, often ignored and can cause good parts to fail. Knowing how to minimize this issue, decreases scrap, saves time, and lowers manufacturing cost. Transmitted Wavefront Measurements Recently an Äpre upgrade customer using a 6X zoom interferometer noticed unexplained user-to-user variations. The setup was a window within a Transmission Flat … Continue reading