APRE interferometers enable our customers, who are faced with evermore challenging requirements, to profitably maintain and advance the optical components and systems they manufacture. APRE provides more modular source options: Stabilized HeNe, SLM laser diodes, patented SCI technology and wavelength modulated options. More Native Apertures with 6mm, 50mm, 100mm, 150mm, 300mm, plus custom and beam expanded options. With the highest imaging resolution, highest slope acceptance and lowest retrace errors APRE interferometers economically give you greater insight than previous generations of interferometers. APRE is here to help you.