| 
 Substrate Material:  | 
 Schott N-SF1 Optical Glass  | 
| 
 Design Wavelength:  | 
 400-700nm band  | 
| 
 Wavefront Distortion:  | 
 <Lambda/4 at 633nm typ over surface.  | 
| 
 Surface Quality:  | 
 40-20 scratch and dig  | 
| 
 Outer Dimension:  | 
 12.7x12.7x12.7, -0.2/+0.0mm  | 
| 
 Extinction Ratio:  | 
 Tp:Ts > 9500:1   | 
| 
 Transmission Efficiency:  | 
 Tp > 78%@ 400nm;  
Tp > 82%@ 405nm;  
Tp > 94%@ 488nm;  
Tp > 96%@ 532nm; 
Tp > 97%@ 560nm; 
Tp > 97%@ 633nm;  
Tp > 97%@ 650nm;  
Tp > 98%@ 670nm;  
Tp (average) > 95% @ 400-700nm 
Ts (average) <0.01% @ 400-700nm  | 
| 
 Reflection Efficiency:  | 
 Rs > 99.5%  | 
| 
 Reflected Beam Deviation:  | 
 90deg,+/-5 arc min   | 
| 
 Anti-Reflection Coating:  | 
 R<0.5% max @ 405-700nm; R (average) ~0.2% @ 400-700nm, 0-deg AOI  | 
| 
 Clear Aperture:  | 
 >90% of outer dimension  | 
| 
 Damage Threshold:  | 
 100mJ/cm2, 8nsec pulse; 100W/cm2, CW at 515nm typ.  |