Bheemireddy, K. R; Maheswar, G; Pant, J; Omar, A; Kumar, B; Uddin, W; Nirmal, K
(SPIE-The International Society for Optical Engineering, 2016-07)
Initially the primary mirror of the 3.6m Devasthal Optical Telescope is uncoated polished zerodur glass supplied by Lytkarino Optical Glass Factory, Russia/Advanced Mechanical and Optical Systems, Belgium. In order to do ...