Profile: Galaxy Optics specializes in offering glass and optical coatings. We also provide laser interferometry, primary optics, elliptical diagonals and mirror test data. We use precision annealed PYREX 7740 low expansion glass. Our precision annealed Pyrex glass exhibits higher thermal stability over fine and coarse annealed materials. The glass cools and heats evenly without developing localized hot spots. We offer optical re-coating services.