TMT mirror blank production is underway

//TMT mirror blank production is underway

TMT Primary Mirror Segments production work is underway. Over 200 of the 574 segmented mirror blanks needed for TMT’s 30-meter-wide primary mirror have already been produced in Japan. The blanks shipped to the US are tested against many requirements to confirm their excellent quality before starting the polishing process. Here you can get a view of the several steps involved in TMT blank inspection in California