The Miniaturized Optical Filter (IMAGE) University of Bonn Caption The miniaturized optical filter is located in the central slot of the sleeve mount. Credit © Uni Bonn Usage Restrictions This image may be used together with the press release. 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.