Semiconductor Raw Material Pure Semi-Metal Ge 4n, Standard & Custom Germanium Crystals, Germanium Materials manufacturer / supplier in China, offering Raw Material Pure Semi-Metal Ge 4n Germanium Wafer Raw Material, Monocrystal Silicon, Silicon Lens, Infrared Window, Broadband Polarization Beamsplitter Coatings in Laser System and so on.
Min. Order / Reference FOB Price | |
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1 Piece | US $60.00/ Piece |
Local Area: | Qinhuangdao, Hebei, China |
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R&D Capacity: | OEM, ODM, Other |
Payment Terms: | LC, T/T, D/P, PayPal, WesternUnion, Small-amountpayment |
Usage: | Optical |
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Type: | Concave Lens |
Transmittance: | >95% |
Diam20mm
Thickness
approximate 2mm
Tolerance of Thickness
±0.010''
Diameter
+0.001''-0.005''
Edge thickness variation (ETV)
<= 0.002''
Aperture
90% of the Diameter
Face accuracy (radial deviation / irregularity) at 0.63um
<= 0.20%
Surface Figure (power-irregularity) at 0.63 um
Plano:0.1 fringe - 0.5 fringe Radiused: depending on radius
Surface Quality
20-10
AR Coating Reflectivity Per surface at 10.6 microns
<= 0.20%