Dynavac’s deposition systems deposit highly reflective metal films onto large astronomical telescope mirrors with exacting precision. Using proven designs and deposition methods, our systems provide a highly reliable method for depositing aluminum, protected aluminum, or protected silver. We also offer a wide range of support services including conceptual design studies, process development, and onsite support during deposition.
Reflective Coatings for Large Telescope Mirrors
Mirror coating applications
- Front-surface coating of mirrors of any size
- Aluminum, protected aluminum, and protected silver coatings
Dynavac reflective coating systems for astronomy
Dynavac Develops Multi-Layer Silver Coating for Astronomical Telescope Mirror at KAFB Facility
Dynavac has successfully developed and deposited a multi-layer silver coating onto a 3.5-meter astronomical mirror at the Air Force Research Lab’s Starfire Optical Range at Kirtland Air Force Base, New Mexico. This significant milestone is expected to establish a new industry standard in producing silver coatings for large-area mirror applications.
High reflectivity large scale telescope mirror coatings via long throw sputtering
Here we present reflectivity measurements of long-throw sputtered aluminum coatings at normal and oblique incidence angles on glass test chips. Experimental results indicate that water vapor partial pressure, not incident angle, is the dominant factor for front surface reflectivity of sputtered aluminum.