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windows-2

BK7 Precision Windows

Material Dimensions Diameter Tolerance Thickness Tolerance Clear Aperture Surface Quality Parallelism Coating
BK7 Grade A Fine Annealed MM + 0 / -0.10 mm ±0.10 mm 90% 40-20 Scratch-Dig < 30 Arc Seconds Uncoated (See Coating Chart for Available Options)
* All dimensions are in mm
windows-2
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Part Number Material Diameter Thickness Flatness  
W-BKP007 N-BK7 40 2 λ/4 Add to Quote
W-BKP009 N-BK7 50 10 λ/10 Add to Quote
W-BKP008 N-BK7 50 4 λ/4 Add to Quote
W-BKP006 N-BK7 25 6 λ/10 Add to Quote
W-BKP005 N-BK7 25 1.5 λ/4 Add to Quote
W-BKP003 N-BK7 12.5 6 λ/10 Add to Quote
W-BKP002 N-BK7 12.5 1 λ/4 Add to Quote