First Glimpse of Fused LSST M2 Substrate at Corning
March 19, 2009
Quality Assurance Technician Brian Todd unveils the LSST secondary (M2) mirror substrate recently fused at Corning's Canton, NY, facility. After inspection and removal from the furnace, Corning will grind the 3.5-meter annulus and then return it to the oven for a controlled melt which helps define the final shape of the 100mm (3.9-inch) thick meniscus substrate. Delivery to the LSST Project is planned by the end of 2009.