Lithium Fluoride Biconvex Lens

Lithium fluoride double convex lenses are used to focus light from point sources or transmit images to other optical systems. The longer the focal length, the larger the lens diameter will be. Lithium fluoride has a wide transmission band (110 ~ 6,600nm) and high transmittance, but also has excellent infrared characteristics, in the infrared band, especially in the far infrared to the long wave infrared band (such as 3 ~ 5μm and 8 ~ 14μm), lithium fluoride has a high transmittance, used as infrared laser, infrared night vision window material. In order to improve transmittance and anti-reflection properties, it is usually necessary to carry out coating treatment. It can plate MgF2, UV-AR, UV-VIS, VIS-EXT, VIS-NIR, NIR I, NIR II, Telecom-NIR, SWIR, SWIR, YAG-BBAR and other film systems.

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)	Focal Length(mm)	Center Thickness(mm)	Edge Thickness(mm)	Design Wavelength(μm)	Radius of Curvature(mm)	Surface Quality
	Screen Reset 2-100	Screen Reset 15-5000	Screen Reset 0.12-60	Screen Reset 0.12-60	Screen Reset Custom	Screen Reset Custom	Screen Reset 60-40
More+ Less	2-100	15-5000	0.12-60	0.12-60	Custom	Custom	60-40
Lithium Fluoride Biconvex Lenses Number：PLi05- Dia(mm)：2-100 Focal Length(mm)：15-5000 Center Thickness(mm)：0.12-60 Edge Thickness(mm)：0.12-60 Design Wavelength(μm)：Custom Radius of Curvature(mm)：Custom Surface Quality：60-40 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Lithium Fluoride（LiF） PV@632.8nm：λ/4 Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant

Material Data
Optical Properties
Transmission Range	0.11-7μm
Transmittance	>94.8%@0.6μm
Reflection Loss	5.2%@0.6μm(both surfaces)
Absorption Coefficienet	5.9×10-3@4.3μm
Structure	Cubic Crystal System
Cleavage Planes	<100>
Physical Properties
Density [g/cm3]	2.639
Melting Point [℃]	848
Thermal Conductivity [W/(m×K)]	11.3 @ 314K
Thermal Expansion [10-6/K]	37.0 @ 283K
Knoop Hardness [kg/mm2]	415
Specific Heat Capacity [J/(kg×K)]	1562
Dielectric Constant	7.33 @ 1 MHz
Young's Modulus (E) [GPa]	64.79
Shear Modulus(G) [GPa]	55.14
Bulk Modulus(K) [GPa]	62.03
Poisson Coefficient	0.22
Chemical Properties
Solubility / g/L	2.7g @ 20℃
Molecular Weight / g/mol	25.9394