For the precision shaping and polishing of large optical elements, L-3 Brashear utilizes a 12,000-square-foot vibration-free, environmentally stable former limestone mine in Western Pennsylvania. The facility has the capability to polish optics up to 8m in diameter and includes a 3.5m vertical shaft for optic testing.

• Brashear's facilities are dedicated to the production of state-of-the-art optical systems and subsystems.  Brashear has 85,000-square-foot of manufacturing space.  The assembly operations are supported by a wide array of mechanical, optical, and electronic test and measuring instruments as well as specialized areas devoted to optical testing.

• Brashear has a long term commitment to develop advanced technology for the design and manufacturing of large optical assemblies.  Our Six-axis U5 NC Machine is dedicated optical fabrication and has a 3.5m capacity and capable of off-axis work.  The utilization of this NC machine will result in shorter manufacturing times and higher quality products.

• In addition, Brashear maintains a fully equipped optical manufacturing facility for grinding, polishing and testing specialty high-precision optical components and systems. Grinding facilities include a 60 inch Blanchard and numerous other machines used in precision optical fabrication including a 6-axis machine center for glass generation.  Over a dozen draper machines are used to precision polish small optics.
 
• Brashear maintains a world-class assortment of optical test flats, lenses, and test fixtures.  Among the many interferometers currently in use at Brashear are a Phase Shift SPSI (Simultaneous Phase Shift Interferometer), four Zygo GPI-HS interferometers with 1 millisecond carrier fringe acquisition to isolate vibration, and two Zygo GPI-HR interferometers. Brashear also has a Leica laser tracker dimensional measurement system in its arsenal of measuring equipment.  All inspection equipment is calibrated to traceable NIST standards.

• For the precision shaping and polishing of large optical elements, L-3 Brashear utilizes a 12,000-square-foot vibration-free, environmentally stable former limestone mine in Western Pennsylvania. The facility has the capability to polish optics up to 4m in diameter and includes a 3.5m vertical shaft for optic testing.