| Material: Sapphire | 
| Size: dia=25.4+0/-0.254mm   Thickness= 1+/-0.254mm | 
| Surface Quality: 40/20 | 
| Clear aperture: >22mm | 
| Wavelength: 530-1550nm, Tavg>/=97% | 
| AOI=0 degree | 
| edge chip<0.5mm soned, MIL-C-48497 | 
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| ** different size, material and wavelength availble upon request |