Sapphire optical window
Cradley Investments
Thickness >/=0.15 mm
Orientation Random, C, R, A, M
Flatness 1 - 5 um per inch (depending on customer's request)
Parallelism <0.5 - 3 angular minutes (depending on customer's request)
Chamfer < /=0.1 - 0.5 mm x 45+/-5 deg
Material quality Grades 1-5
Transmittance for 0.2-5.7 um See the transmittance data for 3 mm thick sapphire window made by Kyropulos & Bagdasarov
Surface quality 80/50, 60/40, 40/20, 20/10. or 10/5 per MIL-0-13830
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