Birefringence Filter (Interferential Polarization)

Birefringence Filter
Birefringence (interferential polarization) filters are spectral devices of high spatial resolution. Exceptional abilities regarding transition bandwidth reduction, the enhancement of contrast, the increase of both angular and linear field of view and scanning range on the spectrum stipulated a wide use of interferential polarization filters. They are successfully used in optical instrument-making, quantum electronics, spectroscopy, astronomy, geophysics and other fields.
Specification
Material: Crystal Quartz
Diameter: 9-70 mm
Thickness: 0,4 – 16 mm
Tolerance: Diameter: +0.0/-0,2 mm
Surface quality: S/D 20/10, 40/20
Surface flatness: λ/4 @ 633 nm
Parallelism: 1-2 arcsec
Currently in stock
Art. Diameter, mm Thickness, mm Price per piece
K1 9 1.95 61 USD
K2 10 1 61 USD
K3 10 1.016 61 USD
K4 12х12 2 64 USD
K5 12 0.995 64 USD
K6 12 1.019 64 USD
K7 12.7 0.956 64 USD
K8 12.7 1.03 64 USD
K9 14 1 81 USD
K10 14 1.007 81 USD
K11 20 0.427 87 USD
K12 20 0.92 87 USD
K13 20 1.047 87 USD
K14 22 0.393 81 USD
K15 22 1.572 91 USD
K16 22 6.288 188 USD
K17 22 6.367 188 USD
K18 25 1.53 114 USD
K19 25 1.56 114 USD
K20 25.4 1.001 114 USD
K21 25.4 1.005 114 USD
K22 25.4 1.021 114 USD
K23 30 0.915 106 USD
K24 30 0.98 106 USD
K25 30 0.994 106 USD
K26 30 0.995 106 USD
K27 30 0.997 106 USD
K28 30 0.995 106 USD
K29 30 0.999 106 USD
K30 30 1.019 106 USD
K31 30 1.04 106 USD
K32 30 1.052 106 USD
K33 30 1.053 106 USD
K34 30 1.054 106 USD
K35 30 1.161 106 USD
K36 30 1.168 106 USD
K37 30 1.346 106 USD
K38 30 1.37 106 USD
K39 30 1.478 106 USD
K40 30 1.482 106 USD
K41 30 1.57 106 USD
K42 30 1.582 106 USD
K43 30 2 110 USD
K44 30 3.345 149 USD
K45 30 4.145 162 USD
K46 30 6.678 221 USD
K47 35 3.488 184 USD
K48 35 3.505 184 USD
K49 40 0.893 149 USD
K50 40 1 149 USD
K51 40 1.77 137 USD
K52 40 4 248 USD
K53 40 6.994 471 USD
K54 40 7.013 471 USD
K55 40 7.2 471 USD
K56 40 7.4 471 USD
K57 40 7.5 471 USD
K58 40 7.9 471 USD
K59 40 10 556 USD
K60 40 12.35 599 USD
K61 40 12.4 599 USD
K62 40 13.506 642 USD
K63 40 13.514 642 USD
K64 40 13.99 642 USD
K65 40 15.9 685 USD
K66 50 0.21 209 USD
K67 50 0.42 192 USD
K68 50 0.84 192 USD
K69 50 1.25 205 USD
K70 50 1.68 205 USD
K71 50 3.36 218 USD
K72 70 6.7 856 USD
K73 70 13.34 1713 USD