Complaint
Aspheric lenses
Aspheric lens are any lenses whose surface angles and profiles are neither part of a sphere nor part of a cylinder. Conventional or non-asphericlenses have the same curve across their entire surface, like a ping-pong ball.Asphericlenses accomplish the same amount of refraction but are flatter and slimmer.
1.Material:bk7,k9,b270,fused silica,sapphire,znse,caf2.
2.Dia.4mm to 200mm
3.Surace quality:60-40
4.flatness;1/4lambda (general standard)
5.CA:85%
6.Tol.:+/-0.1(general standard)
7.Centeration:30seconds
8.Chanfer:0.2mmx45 degree
Coatings are on request.
| Material | N-bk7,H-K9L,Fused Silica,N-SF10,Silicon,CaF2,Sapphire etc. | ||
| Length | 2~300mm | Centration | <3 arc min |
| Height | 2~300mm | Clear Aperture | >90% |
| Radius | >1.5mm | Flatness (per 25mm at 632.8nm) | <1.5Lambda(General) <1/4Lambda(High Precision) |
| Center Thickness | >0.5mm | Irregularity of Fringes | 0.2-0.5 Lambda |
| Focal Length | 3~3000mm | Surface Quality(S/D) | 60/40,40/20 or better |
| Size Tolerance(mm) | +/-0.1mm,+/-0.05mm | Chamfer | <0.25mmx45 degree |
| Center Thichness Tolerance(mm) | +/-0.1mm,+/-0.05mm | Coating | Uncoated,AR,BBAR,Reflective |
| Focal length Tolerance(mm) | ±1% | Design Wavelength | 632.8nm |
Overseas Exhibition
FAQ:
Q: What's the way of shipping and cost?
A:(1) We accept DHL, Fedex, TNT, UPS, EMS etc.
(2) If you have your own express account, it's great.If not,we could help you ship them.
Q: How to pay?
A: T/T, Paypal, etc
Q: What's your MOQ?
A: (1) For inventory, the MOQ is 5pcs.
(2) For customized products, the MOQ is 10pcs-25pcs.
Q: What's the delivery time?
A: (1) For the standard products
For inventory: the delivery is 5 workdays after you place the order.
For customized products: the delivery is 2 or 3 weeks after you place the order.
(2) For the special-shaped products, the delivery is 4 or 6 workweeks after you place the order.
Q: Do you have standard products?
A: Our standard products in stock.
Q: Can I customize the products based on my need?
A: Yes, we can customize the material, specifications and optical coating for your optical components based on your needs.
