Metalens Pillars (IMAGE) Case Western Reserve University Caption The pillars of a metalens. The scale shows 5 microns. A micron equals 0.001 mm, or about 0.000039 inch. Credit Giuseppe Strangi & Federico Capasso Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.