Barium Fluoride Round Windows

Barium Fluoride Windows（round）

Barium fluoride round windows are used as protective windows for electronic sensors or external environment detectors, which can pass through specific wavelength beams while protecting the interior of the instrument from external environmental influences. Barium fluoride material has a high transmittance from the 200nm-11um region. Used for lenses, beam splitters, filters, prisms, and window lenses in low-temperature refrigeration imaging, aerospace optics, and laser optical systems. Barium fluoride is prone to cracking and is highly sensitive to thermal shock. Polishing well can etch. UM OPTICS can provide different types of window sheets such as circular, rectangular, wedge-shaped, perforated, and stepped sheets.

I want to customize Consult

Price
Invoice
Quality
Deivery
Logistics
Receive
Returns
Customized

Please leave a message or inquire about the price online to ensure a satisfactory price for you.

All products are provided with invoices, with a tax point of 13.

The product undergoes multiple inspections before being stored, and the quality is guaranteed. Please use it with confidence.

Spot products, shipped within 48 hours. For non stock or customized products, please consult.

International order logistics include DHL, FedEx, TNT, and EMS

When receiving the product, please ensure the integrity of the product packaging box first. If there is serious damage to the appearance, please refuse and contact us, and we will handle it for you as soon as possible.

Optical products are special items and cannot be returned or exchanged unless there is a quality issue with the product itself

If you need customization or bulk production, please contact us online and we will offer you a discounted price.

	Dia(mm)	ThK(mm)	Parallelism	PV@632.8nm	Surface Quality
	Screen Reset 25.4 100 80 75 60 63.5 63 50 49 42 41 40 38 37.5 36 34 32 50.8 44.6 38.1 35 32.3 30 25.2 25 22 29 19 20 17.5 16 15 13 12 12.7 12.5 10 6 5	Screen Reset 3 2 8 6 5 4 1 3.5 0.5 2.5 1.5 3.2	Screen Reset 8′ <5′ 3′ <3′ 5′	Screen Reset λ/2	Screen Reset 80-50 60-40 40-20
More+ Less	25.4	3	8′	λ/2	80-50
Φ25.4mm，Thickness 3mm，Barium Fluoride Round Windows Number：PBa01E032 Dia(mm)：25.4 ThK(mm)：3 Parallelism：8′ PV@632.8nm：λ/2 Surface Quality：80-50 Clear Aperture：>90% Bevel(mm)：0.5 Chipping(mm)：/ Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Transmission Range：0.15-14μm Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	100	3	8′	λ/2	80-50
Φ100mm，Thickness 3mm，Barium Fluoride Round Windows Number：PBa01H005 Dia(mm)：100 ThK(mm)：3 Parallelism：8′ PV@632.8nm：λ/2 Surface Quality：80-50 Clear Aperture：>90% Bevel(mm)：0.3-1 Chipping(mm)：0.3 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Transmission Range：0.15-14μm Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	80	3	8′	λ/2	80-50
Φ80mm，Thickness 3mm，Barium Fluoride Round Windows Number：PBa01H004 Dia(mm)：80 ThK(mm)：3 Parallelism：8′ PV@632.8nm：λ/2 Surface Quality：80-50 Clear Aperture：>90% Bevel(mm)：0.3-1 Chipping(mm)：0.3 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Transmission Range：0.15-14μm Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	75	3	8′	λ/2	80-50
Φ75mm，Thickness 3mm，Barium Fluoride Round Windows Number：PBa01H003 Dia(mm)：75 ThK(mm)：3 Parallelism：8′ PV@632.8nm：λ/2 Surface Quality：80-50 Clear Aperture：>90% Bevel(mm)：0.3-1 Chipping(mm)：0.3 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Transmission Range：0.15-14μm Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	75	2	8′	λ/2	80-50
Φ75mm，Thickness 2mm，Barium Fluoride Round Windows Number：PBa01H002 Dia(mm)：75 ThK(mm)：2 Parallelism：8′ PV@632.8nm：λ/2 Surface Quality：80-50 Clear Aperture：>90% Bevel(mm)：0.3-1 Chipping(mm)：0.3 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Transmission Range：0.15-14μm Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	75	3	<5′	λ/2	60-40
Φ75mm，Thickness 3mm，Barium Fluoride Round Windows Number：PBa01H001 Dia(mm)：75 ThK(mm)：3 Parallelism：<5′ PV@632.8nm：λ/2 Surface Quality：60-40 Clear Aperture：>90% Bevel(mm)：<0.3 Chipping(mm)：0.5 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Transmission Range：0.15-14μm Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	60	3	8′	λ/2	80-50
Φ60mm，Thickness 3mm，Barium Fluoride Round Windows Number：PBa01G006 Dia(mm)：60 ThK(mm)：3 Parallelism：8′ PV@632.8nm：λ/2 Surface Quality：80-50 Clear Aperture：>90% Bevel(mm)：0.3-1 Chipping(mm)：0.3 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Transmission Range：0.15-14μm Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	60	3	3′	λ/2	60-40
Φ60mm，Thickness 3mm，Barium Fluoride Round Windows Number：PBa01G005 Dia(mm)：60 ThK(mm)：3 Parallelism：3′ PV@632.8nm：λ/2 Surface Quality：60-40 Clear Aperture：>90% Bevel(mm)：0.35 Chipping(mm)：0.35 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Transmission Range：0.15-14μm Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	63.5	8	3′	λ/2	40-20
Φ63.5mm，Thickness 8mm，Barium Fluoride Round Windows Number：PBa01G004 Dia(mm)：63.5 ThK(mm)：8 Parallelism：3′ PV@632.8nm：λ/2 Surface Quality：40-20 Clear Aperture：>90% Bevel(mm)：0.5 Chipping(mm)：0.5 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Transmission Range：0.15-14μm Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	63.5	6	3′	λ/2	40-20
Φ63.5mm，Thickness 6mm，Barium Fluoride Round Windows Number：PBa01G003 Dia(mm)：63.5 ThK(mm)：6 Parallelism：3′ PV@632.8nm：λ/2 Surface Quality：40-20 Clear Aperture：>90% Bevel(mm)：0.5 Chipping(mm)：0.5 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Transmission Range：0.15-14μm 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 Windows（round）

Technical Parameter

Material Data

Transmittance

Application Field

Related Products

Everyone is asking

I want to customize