The purpose of optical coatings is to change the reflectivity of optical surfaces. According to the materials and physical phenomena which are used one can in principle distinguish metallic and ...
Casting of the secondary mirror for the European Southern Observatory’s Extremely Large Telescope has been completed in Mainz, Germany. Weighing 3.5 tons and measuring 14 feet in diameter, the ...
Results that may be inaccessible to you are currently showing.
Hide inaccessible results
Feedback