Magnesium Fluoride Plano-convex Lens

The magnesium fluoride plano-convex lens has an optical transmittance of nearly 90% in the spectral range of 200-9500nm. Commonly used in low-temperature refrigeration imaging systems, aerospace optical systems, and laser optical systems, such as lenses, beam splitters, filters, prisms, and window lenses. This material has a certain degree of water solubility and is suitable for use in dry environments. UM OPTICS can provide a diameter of 2-300mm and a thickness of 0.12-60mm (accuracy can reach 20-10,1)/ 10L@633nm ）Barium fluoride flat convex lenses can be coated with MgF2, UV-AR, UV-VIS, VIS-EXT, VIS-NIR, NIR I, NIR II, Telecom NIR, SWIR, SWIR, YAG-BBAR and other film systems.

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	Dia(mm)	Focal Length(mm)	Center Thickness(mm)	Edge Thickness(mm)	Design Wavelength(μm)	Radius of Curvature(mm)	Surface Quality
	Screen Reset 25.4	Screen Reset F1000 F500 F250 F200 F150 F100 F75 F50	Screen Reset 2.4 2.6 2.8 3.2 4.3 5 6.9	Screen Reset 2.2 1.9 2.1 1.8 2	Screen Reset 0.633	Screen Reset 376.98 188.49 94.28 75.4 56.58 37.81 28.27 18.89	Screen Reset 40-20
More+ Less	25.4	F1000	2.4	2.2	0.633	376.98	40-20
Φ25.4mm，F1000，Magnesium Fluoride Planoconvex Lenses Number：PMg03E008 Dia(mm)：25.4 Focal Length(mm)：F1000 Center Thickness(mm)：2.4 Edge Thickness(mm)：2.2 Design Wavelength(μm)：0.633 Radius of Curvature(mm)：376.98 Surface Quality：40-20 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Magnesium Fluoride（MgF2） Power@632.8nm：3/2λ Irregularity@632.8nm：λ/4 PV@632.8nm：/ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	25.4	F500	2.6	2.2	0.633	188.49	40-20
Φ25.4mm，F500，Magnesium Fluoride Planoconvex Lenses Number：PMg03E007 Dia(mm)：25.4 Focal Length(mm)：F500 Center Thickness(mm)：2.6 Edge Thickness(mm)：2.2 Design Wavelength(μm)：0.633 Radius of Curvature(mm)：188.49 Surface Quality：40-20 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Magnesium Fluoride（MgF2） Power@632.8nm：3/2λ Irregularity@632.8nm：λ/4 PV@632.8nm：/ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	25.4	F250	2.8	1.9	0.633	94.28	40-20
Φ25.4mm，F250，Magnesium Fluoride Planoconvex Lenses Number：PMg03E006 Dia(mm)：25.4 Focal Length(mm)：F250 Center Thickness(mm)：2.8 Edge Thickness(mm)：1.9 Design Wavelength(μm)：0.633 Radius of Curvature(mm)：94.28 Surface Quality：40-20 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Magnesium Fluoride（MgF2） Power@632.8nm：3/2λ Irregularity@632.8nm：λ/4 PV@632.8nm：/ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	25.4	F200	3.2	2.1	0.633	75.4	40-20
Φ25.4mm，F200，Magnesium Fluoride Planoconvex Lenses Number：PMg03E005 Dia(mm)：25.4 Focal Length(mm)：F200 Center Thickness(mm)：3.2 Edge Thickness(mm)：2.1 Design Wavelength(μm)：0.633 Radius of Curvature(mm)：75.4 Surface Quality：40-20 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Magnesium Fluoride（MgF2） Power@632.8nm：3/2λ Irregularity@632.8nm：λ/4 PV@632.8nm：/ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	25.4	F150	3.2	1.8	0.633	56.58	40-20
Φ25.4mm，F150，Magnesium Fluoride Planoconvex Lenses Number：PMg03E004 Dia(mm)：25.4 Focal Length(mm)：F150 Center Thickness(mm)：3.2 Edge Thickness(mm)：1.8 Design Wavelength(μm)：0.633 Radius of Curvature(mm)：56.58 Surface Quality：40-20 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Magnesium Fluoride（MgF2） Power@632.8nm：3/2λ Irregularity@632.8nm：λ/4 PV@632.8nm：/ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	25.4	F100	4.3	2.1	0.633	37.81	40-20
Φ25.4mm，F100，Magnesium Fluoride Planoconvex Lenses Number：PMg03E003 Dia(mm)：25.4 Focal Length(mm)：F100 Center Thickness(mm)：4.3 Edge Thickness(mm)：2.1 Design Wavelength(μm)：0.633 Radius of Curvature(mm)：37.81 Surface Quality：40-20 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Magnesium Fluoride（MgF2） Power@632.8nm：3/2λ Irregularity@632.8nm：λ/4 PV@632.8nm：/ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	25.4	F75	5	2	0.633	28.27	40-20
Φ25.4mm，F75，Magnesium Fluoride Planoconvex Lenses Number：PMg03E002 Dia(mm)：25.4 Focal Length(mm)：F75 Center Thickness(mm)：5 Edge Thickness(mm)：2 Design Wavelength(μm)：0.633 Radius of Curvature(mm)：28.27 Surface Quality：40-20 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Magnesium Fluoride（MgF2） Power@632.8nm：3/2λ Irregularity@632.8nm：λ/4 PV@632.8nm：/ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
More+ Less	25.4	F50	6.9	2	0.633	18.89	40-20
Φ25.4mm，F50，Magnesium Fluoride Planoconvex Lenses Number：PMg03E001 Dia(mm)：25.4 Focal Length(mm)：F50 Center Thickness(mm)：6.9 Edge Thickness(mm)：2 Design Wavelength(μm)：0.633 Radius of Curvature(mm)：18.89 Surface Quality：40-20 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Magnesium Fluoride（MgF2） Power@632.8nm：3λ/2 Irregularity@632.8nm：λ/4 PV@632.8nm：/ Centering：<3′ Clear Aperture：>90% 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 Plano-convex Lens

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Material Data

Transmittance

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