Magnesium Fluoride Round Windows

Magnesium Fluoride Windows（round）

Magnesium fluoride round windows have high transparency and a circular shape. It has good transparency, excellent mechanical and thermal shock performance, and a high laser damage threshold in the wavelength range of 0.12 μ m-7.5 μm. Magnesium fluoride crystals are a hard and non deformable material with high resistance to chemical corrosion and birefringence properties. Can maintain long-term stability and high transparency performance. Used to separate the environment on both sides, isolating the internal and external components of the instrument, thereby protecting the internal components. It has good transmittance in the ultraviolet, visible, and infrared fields. UM OPTICS can provide different types of window sheets such as circular, rectangular, wedge-shaped, perforated, and stepped sheets.

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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 50.8 50 38.1 32 25.4 30 25 20 19 12.7 15 13 12.5 10 5	Screen Reset 6 5 4 3 2 1 1.5 0.5	Screen Reset 1′ 3′ 5′	Screen Reset λ/2	Screen Reset 40-20 60-40 20-10
More+ Less	50.8	6	1′	λ/2	40-20
Φ50.8mm，Thickness 6mm，Magnesium Fluoride Round Windows Number：PMg01F007 Dia(mm)：50.8 ThK(mm)：6 Parallelism：1′ PV@632.8nm：λ/2 Surface Quality：40-20 Clear Aperture：>90% Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Transmission Range：0.12-7.5μm Substrate Material：Magnesium Fluoride（MgF2） Bevel(mm)：0.5 Chipping(mm)：0.5 Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	50.8	5	1′	λ/2	40-20
Φ50.8mm，Thickness 5mm，Magnesium Fluoride Round Windows Number：PMg01F006 Dia(mm)：50.8 ThK(mm)：5 Parallelism：1′ PV@632.8nm：λ/2 Surface Quality：40-20 Clear Aperture：>90% Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Transmission Range：0.12-7.5μm Substrate Material：Magnesium Fluoride（MgF2） Bevel(mm)：0.5 Chipping(mm)：0.5 Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	50.8	4	1′	λ/2	40-20
Φ50.8mm，Thickness 4mm，Magnesium Fluoride Round Windows Number：PMg01F005 Dia(mm)：50.8 ThK(mm)：4 Parallelism：1′ PV@632.8nm：λ/2 Surface Quality：40-20 Clear Aperture：>90% Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Transmission Range：0.12-7.5μm Substrate Material：Magnesium Fluoride（MgF2） Bevel(mm)：0.5 Chipping(mm)：0.5 Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	50.8	3	1′	λ/2	40-20
Φ50.8mm，Thickness 3mm，Magnesium Fluoride Round Windows Number：PMg01F004 Dia(mm)：50.8 ThK(mm)：3 Parallelism：1′ PV@632.8nm：λ/2 Surface Quality：40-20 Clear Aperture：>90% Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Transmission Range：0.12-7.5μm Substrate Material：Magnesium Fluoride（MgF2） Bevel(mm)：0.5 Chipping(mm)：0.5 Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	50	3	1′	λ/2	40-20
Φ50mm，Thickness 3mm，Magnesium Fluoride Round Windows Number：PMg01F003 Dia(mm)：50 ThK(mm)：3 Parallelism：1′ PV@632.8nm：λ/2 Surface Quality：40-20 Clear Aperture：>90% Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Transmission Range：0.12-7.5μm Substrate Material：Magnesium Fluoride（MgF2） Bevel(mm)：0.35 Chipping(mm)：0.35 Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	38.1	5	3′	λ/2	40-20
Φ38.1mm，Thickness 5mm，Magnesium Fluoride Round Windows Number：PMg01F002 Dia(mm)：38.1 ThK(mm)：5 Parallelism：3′ PV@632.8nm：λ/2 Surface Quality：40-20 Clear Aperture：>90% Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Transmission Range：0.12-7.5μm Substrate Material：Magnesium Fluoride（MgF2） Bevel(mm)：0.35 Chipping(mm)：0.35 Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	32	3	3′	λ/2	60-40
Φ32mm，Thickness 3mm，Magnesium Fluoride Round Windows Number：PMg01F001 Dia(mm)：32 ThK(mm)：3 Parallelism：3′ PV@632.8nm：λ/2 Surface Quality：60-40 Clear Aperture：>90% Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Transmission Range：0.12-7.5μm Substrate Material：Magnesium Fluoride（MgF2） Bevel(mm)：0.35 Chipping(mm)：0.35 Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	25.4	5	3′	λ/2	40-20
Φ25.4mm，Thickness 5mm，Magnesium Fluoride Round Windows Number：PMg01E015 Dia(mm)：25.4 ThK(mm)：5 Parallelism：3′ PV@632.8nm：λ/2 Surface Quality：40-20 Clear Aperture：>90% Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Transmission Range：0.12-7.5μm Substrate Material：Magnesium Fluoride（MgF2） Bevel(mm)：0.35 Chipping(mm)：0.35 Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	30	2	3′	λ/2	60-40
Φ30mm，Thickness 2mm，Magnesium Fluoride Round Windows Number：PMg01E014 Dia(mm)：30 ThK(mm)：2 Parallelism：3′ PV@632.8nm：λ/2 Surface Quality：60-40 Clear Aperture：>90% Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Transmission Range：0.12-7.5μm Substrate Material：Magnesium Fluoride（MgF2） Bevel(mm)：0.35 Chipping(mm)：0.35 Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	25.4	5	5′	λ/2	20-10
Φ25.4mm，Thickness 5mm，Magnesium Fluoride Round Windows Number：PMg01E011 Dia(mm)：25.4 ThK(mm)：5 Parallelism：5′ PV@632.8nm：λ/2 Surface Quality：20-10 Clear Aperture：>90% Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Transmission Range：0.12-7.5μm Substrate Material：Magnesium Fluoride（MgF2） Bevel(mm)：0.35 Chipping(mm)：0.35 Coating：Uncoated REACH：Compliant ROHS：Compliant

Material Data
Optical Properties
Transmission Range	0.12-9μm
Transmittance	>90%@0.193-6μm
Refractive Index	NO=1.566,Ne=1.568@0.13μm NO=1.334,Ne=1.343@5μm
Reflection Loss	11.2%@0.12nm(both surfaces) 5.7%@0.22μm(both surfaces) 5.1%@1μm(both surfaces)
Absorption Coefficienet	40×10-3@2.7μm
Structure	square crystal system
Cleavage Planes	<100>
Physical Properties
Density [g/cm3]	3.177
Melting Point [℃]	1255
Thermal Conductivity [W/(m×K)]	21 //c, 33.6⊥c @ 300K
Thermal Expansion [10-6/K]	13.7//c, 8.9 ⊥c @ 373k
Knoop Hardness [kg/mm2]	415
Specific Heat Capacity [J/(kg×K)]	1003
Dielectric Constant	4.87 //c, 5.44⊥c @ 1MHz
Young's Modulus (E) [GPa]	138.5
Shear Modulus(G) [GPa]	54.66
Bulk Modulus(K) [GPa]	101.32
Poisson Coefficient	0.276
Chemical Properties
Solubility / g/L	0.002g @ 20℃
Molecular Weight / g/mol	62.3018

Magnesium Fluoride Windows（round）

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Material Data

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