info@donoptics.com
+86 16637755598
● MOQ: ≧ 50pcs for OEM. 5 to 20pcs also welcome for sample order.
● Price: Depend on the quantity , materials and specification requirements, etc.
● Tooling Cost:Tooling charge may be needed for new design.
● Lead Time: General 7-15 days for customized drawing. Negotiable for Large Qty.
● Packaging: Blister packaging or bubble wrap for optical components with Carton.
●Payment Term:Payment>300USD, 30% T/T in advance, 70% balance before shipment. Payment<=300USD, 100% in advance.
A concave lens is a lens that diverges a straight light beam from the source to a diminished, upright, virtual image. It can form both real and virtual images. Concave lenses have at least one surface curved inside. A concave lens is also known as a diverging lens because it is shaped round inwards at the centre and bulges outwards through the edges, making the light diverge.
The process capacity for concave lens
● Material:N-BK7, H-K9L, Fused Silica, H-ZF52A, Sil, MgF2, CaF2, Sapphire, ZnSe, ZnS, etc.
● Diameter:5-200mm
● Tolerance: +/-0.05mm
● Thickness tolerance: +/-0.05mm
● Surface accuracy: λ/4 @632,8nm
● Centration : < 1 arc min
● Clear aperture : >90%
● S/D :60-40,40-20,20-10
● Coatings: AR coating,BBAR coating, customized available.
Contact: Amy
Phone: +86 16637755598
E-mail: info@donoptics.com
Whatsapp:16637755598
Add: henan,China
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