경희대학교 BK21

 

아래와 같이 세미나를 진행하오니
관심있는 분들의 많은 참여를 바랍니다.
-------------------- 아 래 --------------------
● 날짜 : 2016년 11월 11일 (금요일)
● 시간 : 16시 30분
● 장소 : 천문대 영상실
● 강사 : Prof. Dae Wook Kim (College of Optical Sciences, The University of Arizona)

 
Title : Giant Mirrors looking up in the sky
 
Abstract :

Three giant eyes of the Earth, astronomical primary mirrors for the next generation telescopes, 25m Giant Magellan Telescope, 8.4m Large Synoptic Survey Telescope, and 4.2m Daniel K. Inouye Solar Telescope, have been created at the University of Arizona. Those precision optics were efficiently produced using a computer controlled optical surfacing (CCOS) process. Various new approaches advancing the current CCOS processes have been developed and implemented to manufacture highly aspheric or free-form optics at the Richard F. Caris Mirror Lab (RFCML), Optical Engineering and Fabrication Facility (OEFF) and the Large Optics Fabrication and Testing (LOFT) group at the University of Arizona. Various exciting technologies including Silly-Putty lap using non-Newtonian fluid, IR deflectometry using a hot wire, precision metrology using an iPhone, smoothing model for mid-to-high spatial frequency error control and edge removal effect for segmented optical systems, are presented with some actual data demonstrating the enhanced performance of the precision optics manufacturing process. The value of these eyes of the Earth? Priceless.