3" Dia Optical Test Plate/ Reference Flat, 0.000001", 1/10 Wave Band, Dual Side

US $78.00

  • Erie, Colorado, United States
  • Jul 13th
Up for sale is a 3" Diameter Dual Side Reference Flat accurate to 1 micro-inch ( better than 1/10th wave).  Made from UV grade fused silica, this optical window has the hardness, & low expansion coefficient for your project needing a precision reference flat or window.  You can't make what you can't measure so this will give you the ability to guarantee flatness.   This has a MgF2 protective coating on S1 to give extra protection. These have polished sides to deter oil and gunk and are in Pristine Condition!!   Comes with clear protective PETG storage case. The monochromatic flatness images are from these parts. 3 available.  SPECS: Substrate: Fused Silica, Grade 0A Diameter: 76 mm, +/- 0.3mm Thickness: 12.8 mm Serial Numbers: 640, 649, 657 Accuracy Side 1: 1/10 wave band 546nm        0.000,001 inch Accuracy Side 2: 1/10 wave band 546nm        0.000,001 inch Evaluated conformance 03/17/2021 As always, your complete satisfaction is guaranteed.  If not 100% satisfied with this, you may return.  I have many happy customers and would like you to become one as well.  Sizes up to 6” dia. available.  This came from USEC auction of AVLIS optics from 1999 and well stored since.   Winning bid to pay $8.50 shipping within USA.
Surface is pristine, zero scratches. Polished to each side to better than 1/10 wave flat (1 millionth inch)
Item Type Reference Flat
Brand Bond Optics
MPN 89-103532

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