Custom AR/AR coating @3 5um, 8 14um Germanium Plano convex/concave Lenses, Meniscus Lenses for thermal Imaging

Plano-convex lenses have a positive focal length and approach best form for infinite and finite conjugate applications. These lenses focus a collimated beam to the back focus and collimate light from a point source. They are designed with minimal spherical aberration and have a focal length given by: f = R/(n-1), where R is the radius of curvature of the convex portion of the lens and n is the index of refraction. To minimize the introduction of spherical aberration, a collimated light source should be incident on the curved surface of the lens when being focused and a point light source should be incident on the planar surface when being collimated.
Due to its broad transmission range (2 - 16 µm) and opacity in the visible portion of the spectrum, germanium is well suited for IR laser applications. It is also inert to air, water, alkalis, and acids (except nitric acid). Germanium's transmission properties are highly temperature sensitive; in fact, the absorption becomes so large that germanium is nearly opaque at 100 °C and completely non-transmissive at 200 °C. For other MIR lenses and spherical singlets, please refer to the Selection Guide below.
When handling optics, one should always wear gloves. This is especially true when working with germanium, as dust from the material is hazardous. For your safety, please follow all proper precautions, including wearing gloves when handling these lenses and thoroughly washing your hands afterward.

a: Dimesion size : 5-300mm , thickness up to customer requirements

b: Many material could be choosed, like BK7, Fused Silica, Sapphire, MgF2, CaF2, Ge, Si, Znse, ZnS and so on.

c: AR HR DLC coating or as your request

For more please visit our website: www.wheo.cn

                  Optical design

We can design optical components according to your requirements.

                  Production

 Our current production capacity         includes but not limited to cutting, grinding, polishing,coatin and testing.

              After-sales service

Packing Details: Protective film or Capacitor paper,Pearl cotton,Cardboard box.
Delivery Details: 7 days for stock.

                              3-4 weeks for custom-made products for sample.

                              in common, 4 weeks for mass production

What's the way of shipping?
We commonly use UPS, FedEx, DHL, TNT, SF, EMS etc. If you have your own express account, it's great.

How to pay?

We usually draft Trade Assurance Order on Alibaba, you can pay by the most convenient way which also protect most of your rights.
     
What's the deliver time?
For inventory: the delivery time is around 5 workdays. 

 Customized products: the delivery time is 10 to 30 workdays. According to the quantity and precision.

How to ensure the safety of payment?
Wuhan Especial Optic.,INC is the gold supplier and supports Alibaba Trade Assurance. Payment<=5000USD, 100% in advance. Payment>5000USD, 50% T/T in advance, balance before shippment.

Can I customize the products based on my need?
Yes, we can customize the material, specifications and optical coating for your optical components based on your needs. OEM is available.