Optical Components

ERPOC Precision Optics Components

E.R. Precision Optical Corporation (ERPOC) provides the highest quality windows, lenses, mirrors, filters, prisms, and any optical components requiring precision machining and finishing. ERPOC’s state-of-the-art facility, combined with vertical integration straight to finished products, will cost effectively meet all your custom material requests, unique optical designs, and precise specifications with short lead-times.


  • Infrared materials – Germanium & Silicon
  • Optical blanks
  • Prisms
  • Windows, waveplates & mirrors up to 24″ diameter
  • EMI Grid Protected Windows
  • Shaped Windows
  • Spherical lenses up to 14″ diameter
  • Aspheres
  • Optical cell assemblies, reticle assemblies


  • Flatness < λ/20  @ 633nm
  • Surface roughness < 5 Å
  • Surface quality < 5/2 SD
  • Angles < 1 arc second
  • Centration < 0.0002″ ( 0.005 mm)
optical components

Check out other services we offer

Optical Blanks

Our qualified staff follows strict ISO standards throughout their production process.

Crystal Growth

With three crystal pullers, we have high volume capacity for Germanium and Silicon products

Custom Assembly

ERPOC offers many services to assemble critical  and complex components.