Diffraction Harmonic Lens. How it Works? (VIDEO) Samara University This video is under embargo. Please login to access this video. Caption Scientists of Samara University Reduced the Weight of Optics for Satellite Observation of the Earth by 100 Times Credit Samara University 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.