K9 Plano-convex Lens

K9 plano-convex lens is a lens with a flat convex surface shape. Used in optical applications such as laser systems, spectrometers, optical communications, etc., for converging or collimating beams, as well as changing the focusing characteristics of beams. It has the characteristics of high purity, high transparency, thermal stability, and low refractive index, making it exhibit good performance in the field of optical applications. The design of a planar convex lens allows parallel beams of light to converge at one point, and manufacturing requires precise machining and polishing processes to ensure its surface quality and optical performance. Usually, cutting, grinding, polishing and other processing steps are used to obtain the desired shape and accuracy. Meanwhile, in order to improve transmittance and anti reflection performance, coating treatment is usually required. It 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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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 2-300	Screen Reset 15-5000	Screen Reset 0.12-60	Screen Reset 0.12-60	Screen Reset Custom	Screen Reset Custom	Screen Reset 40-20
More+ Less	2-300	15-5000	0.12-60	0.12-60	Custom	Custom	40-20
K9 Planoconvex Lens Number：PG203- Dia(mm)：2-300 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：40-20 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：K9 Irregularity@632.8nm：λ/4 Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant

Material Data
Optical Properties
Transmission Range	0.35-2μm
Refractive Index	1.5168@587.5618nm 3×10-2@10.6μm
Reflection Loss	8.1%@587.5618nm(both sides)
Physical Properties
Density [g/cm3]	2.51
Melting Point [℃]	559
Thermal Conductivity [W/(m•deg C)]	1.114
Thermal Expansion [deg C-1for -30/+70 degC]	7.1*10-6
Specific Heat Capacity [J/(kg•deg C)]	0.858*103
Young's Modulus(E)[GPa]	82
Bulk Modulus(K)[GPa]	34
Poisson Coefficient	0.206
Chemical Properties
Solubility / g/L	None