Diameter 45mm biconvex optical instruments lens,25mm,20mm,38mm,31mm,34mm,37mm focal length

Double convex lens

Double-Convex Lenses are used in image relay applications, or for imaging objects at close conjugates. Double-Convex Lenses have positive focal lengths, along with two convex surfaces with equal radii. Aberrations will increase as the conjugate ratios increase. DCX Lenses are used in a range of industries or applications.

Optical AR Coatings

a) Uncoated,The surface reflectivity of uncoated visible lenses(Refractive index＝1.5) is about 4%.

Click on the link to see how to calculate reflectivity

b) AR/AR@400-700nm,Tavg>99.4%

c) AR/AR@450-650nm,Tavg>99.6%

d) AR/AR@400-1000nm,Tavg>98.5%

e) We can also customize high damage threshold antireflective coatings

Production Line

Optical Properties of Optical lens

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

How to pay?

(1) T/T, PayPal, West Union,etc

(2) Bank Fee: West Union-USD30.00(≤USD3000.00),

T/T-USD20.00+, PayPal-5%. Please consult the local bank.

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.

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.

Company profile

Wuhan Siwer Optics is a professional manufacturer of various optical components.We focuses on production of optical interference filters,infrared and visible optical components.
The company has optical optimization design, precision optical processing and optical coating technology and production technology, with complete production processing and testing equipment, perfect quality management system.
With continuous technological progress and management innovation, we will create more value and provide better products and services for our customers.

Product Range

Discover the range of standard optical components,including interference filters,optical lenses,prisms,laser windows,dielectric and metallic mirors.We can supply quick interference filters purchase and delivery from our stock,design and manufacture custom optical elements from a wide range of optical materials with vacuum coatings.

Infrared and visible optical prisms,lenses,windows
Material:Germanium,Silicon,ZnSe,ZnS,CaF2,MgF2,Sapphire,Visible optical glass,etc.

Interference filters:bandpass filters,shortpass filters,longpass filters.

Our filters are widely used in: driverless, UAV, optical fiber communication, industrial laser, automation equipment, semiconductor production, micro measurement system, building surveying and mapping, biometrics, medical instruments and devices, security monitoring, beauty instruments, stage lighting, high-energy laser equipment, military equipment, infrared imaging, visual light source, biochemical analyzer, enzyme marker, fingerprint identification, rainbow Membrane recognition, micro projection and imaging systems.

Optical coatings:Infrared Anti-Reflective Coating,Partial Reflective Coating, High Reflective Coating, Polarization Beamsplitter Coating, Dichroic Coating.

Our products are widely used in Precision Instruments,Beauty Equipments,Medical Equipments,Infrared Imaging,Measurement Systems,Laser Processing Equipments,and Scientific area.