|Place of Origin:||Wuhan,China|
|Brand Name:||Wuhan Siwer Optics|
|Minimum Order Quantity:||10 pieces|
|Packaging Details:||1.Tissue paper. 2.Plastic foam packaging film. 3.Hard carton box with quakeproof filler|
|Delivery Time:||4-6 weeks|
|Payment Terms:||T/T, Western Union|
|Supply Ability:||5000 pieces/month|
|Material:||Optical Glass,BK7,SF,etc.||Size Tolerance:||+/-0.1mm|
|Surface Flatness:||Lambda/4 In 25.4mm||Centration:||1-3 Arc Min|
|Standard Coating:||AR@400-700nm Or Customized||Size Range:||4-300mm|
A double convex lens is symmetrical across both its horizontal and vertical axis. Each of the lens' two faces can be thought of as originally being part of a sphere. The fact that a double convex lens is thicker across its middle is an indicator that it will converge rays of light that travel parallel to its principal axis. A double convex lens is a converging lens. A double concave lens is also symmetrical across both its horizontal and vertical axis. The two faces of a double concave lens can be thought of as originally being part of a sphere. The fact that a double concave lens is thinner across its middle is an indicator that it will diverge rays of light that travel parallel to its principal axis. A double concave lens is a diverging 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%.
e) We can also customize high damage threshold antireflective coatings
|AR Coating Range||400-700nm or customized|
AR Coating Range @ 0° AOI
|Diameter Tolerance||+0.0/-0.1 mm|
|Thickness Tolerance||±0.1 mm|
|Focal Length Tolerance||±2%|
|Surface Quality||40/20 Scratch-Dig|
|λ/2 at 633nm|
|Spherical Surface Powerc
|1.5λ at 633nm|
(Peak to Valley)
|λ/2 at 633nm|
|Clear Aperture||>Ø10.16 mm (Ø1/2" Lenses)
>Ø20.32 mm (Ø1" Lenses)
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.