23 Jul NEW Bk7 Cube Retroreflector, 25.4mm Total station prism
Optical Material: Dimension Tolerance:Clear Aperture:Deviation: Flatness:Surface Quality:Bevel:Coating: BK7 or Fused Silica ± 0.2mm>80%180°lambda/4 at 632.8nm on big surface lambda/4 at 632.8nm on other surface60-40 scratch and dig 0.2-0.5mm X 45°Uncoated or silver with inconel and black overpaint.D(mm)H(mm)Angle ToleranceMaterialProduct Number7.166.1010 arcsecBK7ICC -CCRB01017.166.101 arc min.Fused SilicaICC-CCRF010212.7010.163 arcsecBK7ICC-CCRB010312.7010.161...