Storage of TMT polished roundels A total of five accepted and completed roundels produced by Coherent are stacked at the TMT storage facility in Fremont, CA, June 2021.
TMT M1 polished roundel produced at Coherent facility in California – June 2021. Another finished roundel for TMT’s primary mirror is carefully prepared for packing and shipping.
Packing TMT finished roundel at Coherent facility, in June 2021 Held by the three suction cup lifters of a crane, the TMT polished roundel is carefully placed in a shipping crate and sealed inside a large optical tissue paper for protection.
TMT Mirror Shipping activity in the Bay Area Six TMT Primary Mirror blanks arrive at Coherent and are ready to enter the shop, June 10, 2021.
The Laser Units (each consisting of a Laser Head and Laser Electronics) are installed on the laser platform. A long beam transfer optics enables the laser beams to be relayed to the LGSF Top-End, where they will be formatted and then launched from the laser launch telescope.
The LGSF mounted on the telescope structure will project powerful laser beams into the upper atmosphere of the Earth, creating artificial stars for adaptive optics correction of the atmospheric turbulence.
The refrigeration prototype will be used for the cooling of TMT's Narrow Field Infra-Red Adaptive Optics System enclosure.