Barium Fluoride Wedge Windows

Barium fluoride wedge windows are used as protective windows for electronic sensors or external environmental detectors, as well as for changing the deflection path of light, and have a wedge shaped design. Barium fluoride material has a high transmittance from the 200nm-11um region. Barium fluoride is prone to cracking and is highly sensitive to thermal shock. It can be polished well and etched. It can be coated with reflective film, anti reflective film, filter film, spectroscopic film, polarizing film, and metallization film systems.

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	Dia(mm)	ThK(mm)	Wedge Angle	Surface Quality	Surface Accuracy	Clear Aperture	Bevel(mm)
	Screen Reset 50.8 38.1 25.4 12.7	Screen Reset 6 5 4 3 2	Screen Reset 30′	Screen Reset 60-40 40-20	Screen Reset 5(3) 3(1)	Screen Reset >90%	Screen Reset 0.35
More+ Less	50.8	6	30′	60-40	5(3)	>90%	0.35
Φ50.8mm，Thickness 6mm，Wedge Angle 30′，Barium Fluoride Wedge Windows Number：PBa01F032 Dia(mm)：50.8 ThK(mm)：6 Wedge Angle：30′ Surface Quality：60-40 Surface Accuracy：5(3) Clear Aperture：>90% Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Wedge Angle Tolerance：±10′ Substrate Material：Barium Fluoride（BaF2） Transmission Range：0.15-14μm Bevel(mm)：0.35 Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	38.1	5	30′	60-40	3(1)	>90%	0.35
Φ38.1mm，Thickness 5mm，Wedge Angle 30′，Barium Fluoride Wedge Windows Number：PBa01F017 Dia(mm)：38.1 ThK(mm)：5 Wedge Angle：30′ Surface Quality：60-40 Surface Accuracy：3(1) Clear Aperture：>90% Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Wedge Angle Tolerance：±10′ Substrate Material：Barium Fluoride（BaF2） Transmission Range：0.15-14μm Bevel(mm)：0.35 Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	25.4	5	30′	40-20	3(1)	>90%	0.35
Φ25.4mm，Thickness 5mm，Wedge Angle 30′，Barium Fluoride Wedge Windows Number：PBa01E020 Dia(mm)：25.4 ThK(mm)：5 Wedge Angle：30′ Surface Quality：40-20 Surface Accuracy：3(1) Clear Aperture：>90% Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Wedge Angle Tolerance：±10′ Substrate Material：Barium Fluoride（BaF2） Transmission Range：0.15-14μm Bevel(mm)：0.35 Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	25.4	4	30′	60-40	3(1)	>90%	0.35
Φ25.4mm，Thickness 4mm，Wedge Angle 30′，Barium Fluoride Wedge Windows Number：PBa01E019 Dia(mm)：25.4 ThK(mm)：4 Wedge Angle：30′ Surface Quality：60-40 Surface Accuracy：3(1) Clear Aperture：>90% Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Wedge Angle Tolerance：±10′ Substrate Material：Barium Fluoride（BaF2） Transmission Range：0.15-14μm Bevel(mm)：0.35 Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	12.7	3	30′	40-20	3(1)	>90%	0.35
Φ12.7mm，Thickness 3mm，Wedge Angle 30′，Barium Fluoride Wedge Windows Number：PBa01C009 Dia(mm)：12.7 ThK(mm)：3 Wedge Angle：30′ Surface Quality：40-20 Surface Accuracy：3(1) Clear Aperture：>90% Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Wedge Angle Tolerance：±10′ Substrate Material：Barium Fluoride（BaF2） Transmission Range：0.15-14μm Bevel(mm)：0.35 Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	12.7	2	30′	60-40	3(1)	>90%	0.35
Φ12.7mm，Thickness 2mm，Wedge Angle 30′，Barium Fluoride Wedge Windows Number：PBa01C008 Dia(mm)：12.7 ThK(mm)：2 Wedge Angle：30′ Surface Quality：60-40 Surface Accuracy：3(1) Clear Aperture：>90% Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Wedge Angle Tolerance：±10′ Substrate Material：Barium Fluoride（BaF2） Transmission Range：0.15-14μm Bevel(mm)：0.35 Coating：Uncoated REACH：Compliant ROHS：Compliant

Material Data
Optical Properties
Transmission Range	0.15-14μm
Transmittance	>94%@0.35nm-10.8μm
Refractive Index	1.462@2.58μm 1.45@5μm
Reflection Loss	6.8%@2.58μm(both surfaces) 6.5%@5μm(both surfaces) 5.3%@10.35μm(both surfaces)
Absorption Coefficienet	3.2×10-4@6μm
Structure	Cubic Crystal System
Cleavage Planes	<111>
Physical Properties
Density [g/cm3]	4.89
Melting Point [℃]	1386
Thermal Conductivity [W/(m×K)]	11.72 @ 286K
Thermal Expansion [10-6/K]	18.1 @ 273K
Knoop Hardness [kg/mm2]	82
Specific Heat Capacity [J/(kg×K)]	410
Dielectric Constant	7.33 @ 1 MHz
Young's Modulus (E) [GPa]	53.07
Shear Modulus(G) [GPa]	25.4
Bulk Modulus(K) [GPa]	56.4
Poisson Coefficient	0.343
Chemical Properties
Solubility / g/L	1.7g @ 20℃
Molecular Weight / g/mol	175.3238

Barium Fluoride Wedge Windows

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