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10- 7/16 in. Optical Flat, 2 inch thick, US $2,250.00 – Picture 0
10- 7/16 in. Optical Flat, 2 inch thick, US $2,250.00 – Picture 1
10- 7/16 in. Optical Flat, 2 inch thick, US $2,250.00 – Picture 2
10- 7/16 in. Optical Flat, 2 inch thick, US $2,250.00 – Picture 3
10- 7/16 in. Optical Flat, 2 inch thick, US $2,250.00 – Picture 0
10- 7/16 in. Optical Flat, 2 inch thick, US $2,250.00 – Picture 1
10- 7/16 in. Optical Flat, 2 inch thick, US $2,250.00 – Picture 2
10- 7/16 in. Optical Flat, 2 inch thick, US $2,250.00 – Picture 3

10- 7/16 In. Optical Flat, 2 Inch Thick

US $2,250.00

  • West Hartford, Connecticut, United States
  • Jan 30th
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10-7/16 (265Mmm) Diameter flat, 2" (50.8mm) Thick optical flat    Material: Ohara Clearceram ZHS. This a low expansion material similar to Zerodur, a SiO2Al2O3 Li O; glass-ceramic with ultra-low expansion (±0.2 x 10-7/°C ) characteristics near room temperature. This is the material chosen for the new 30meter (TMT) telescope now under development.    Both surfaces are polished to better than 0.10 waves P-V flatness.    Side 1 is measured at 0.79 waves P-V; 0.013 waves RMS    Side 2 is 0.91 waves P-V; 0.017 waves RMS  The surfaces are better than 80/50 scratch and dig
Condition Used :
An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections.
Seller Notes “Has not been used as a contact plate. Like new.”

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