Packaging & Delivery
| Packaging Details: |
carton case,firm and safe package for air transmission |
|---|
| Delivery Detail: |
7-30days |
|---|
Optical Glass flat Convex lens
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flat-convex lens are used to collimate diverging light or to focus collimated light.
We use them as secondary focusing lenses to refocus the collimated light sources.
flat-convex lens have low spherical aberration.Use them with the plano sidefacing the point source or the focus and the curve side towards the collimated beam.
Details of flat convex lense
1.Material:bk7,k9 glass
2.Dia.12.7mm,20mm,25mm,25.4mm
3.Surace quality:10/5 to 80/50
4.flatness;1/4lambda (general standard)
5.CA:85%
6.Tol.:+/-0.05(general standard)
7.Coating:AR coating,Al,coating,Golded Coating,sliver coating,etc.
8.Centeration:30 seconds
9.Champer:0.2mmx45degree
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Our Payment
we accept bank transfer(TT),Paypal,Wester Union,Moneygram, aliexpress,and alibaba trade assurance ways, both on-line payment and off-line payment are for your choise.
All new customer shoule be 100% in advance payment
After-sales
when customer get the package,please first check the situation and the quality, if there is any quality problems made by us, we would like to change new ones or return back the money, also we will responsible for freight for custom.
all things we put custom on the first consider way.
Shipping
All the products will be package with firm box,customer can chose UPS,DHL,Fedex,SF,TNT,EMS,etc.we suggest:
UPS: America shipping is faster, 2-3 days
DHL: Europe,America,Asian,Oceania,Africa is 3-5 days.
Fedex: Europe,America,Asian,Oceania,Africa is 3-5 days
TNT:5-7days
SF: only can be used for Asian countries,3-5 days
