optical glass instruments concave lenses

FOB Reference Price:Get Latest Price
$1.00 - $99.00 / Piece | 20 Piece/Pieces (Min. Order)
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Overview
Quick Details
Place of Origin:
Jilin, China
Brand Name:
realpoo
Model Number:
CON-LV
Material:
Glass
Usage:
Optical
Structure:
Plano-concave
Shape:
Aspheric
Diameter Tolerance:
+0.0, -0.02mm
Protective Bevel:
0.25*45degree
Supply Ability
Supply Ability:
10000 Piece/Pieces per Month
Packaging & Delivery
Packaging Details
protective packing for your concave lens
Port
FOB changchun
Lead Time :
7-20 days

 

A concave lens is a lens, or piece of glass, that curves inward. The lens is thicker at the edges than it is in the center of the lens. The most common use is in eyeglasses.

 

Material

BK7/Fused Silica/Sapphire/MgF2

focal length (f’)

±2%@587.6nm

Diameter Tolerance:

+0.0/-0.2mm

Center Thickness Tolerance(Tc)

±0.1mm

Centration Error:

<3 arcmin

aperture

1~5

Partial aperture

0.2~0.5

smooth finish

IV

Coating

MgF2 anti-reflection film

Clear Aperture:

>90% of central diameter

 

We will process as the drawings and requirements rigorously.

Our engineer will check or design the drawings according to the details.

We have some stock lenses offered.

 

The processing:

  • Cutting materials
  • Preparing toolings and models,
  • Coarse grinding,
  • Polishing surfaces,
  • Cleaning the lenses,
  • Testing
  • Coating,
  • Testing Finish.

 

Our company ’s Producing ability

  • Diameter Tolerance: +0.0, -0.02mm
  • Center Thickness Tolerance: ±0.02mm
  • Surface Quality: 10/5 scratch and dig
  • Centration: ±30 seconds
  • Surface Figure: lambda/10


Packing and Delivery

1.We will use protective plastic and customized boxed to pack.(Enviroment friendly material)

2.We could do customized packing according to the quantity.

3.DHL/Fedex/UPS Express usually takes about 3-5 working days to the destination.And its about 5-8 days by EMS or TNT. Hongkong Post Air Parcel takes 7 to 10 days to ship to worldwide.

After-sale Service

1.Our Customer service will begin to track the product processing every day until you receive the goods and verify the product quality when you finish the payment.

2.Online via SKYPE:Emma-realpoo; Also through mail, voice phone, message could contact us at any time!
3.Follow up the case, record the entire process. Solution will be provide with 24 hours.
   Meanwhile,the problem complaint will be reported to QC department.
   QC will find defect from which department ,who is in charge to identify responsibility.
4.Collect and record all the voice from each customer respond , suggestion, requirement.

5.All products have 1 year warranty.If there is no man-made problem,we will replace or repair for your freely.

6.We own the best after-sale service,if any problems happen,our team will do our best to solve for customers.

Customer Service Center (International)
   1.From Monday to Saturday between 08:00-17:30 hours (Beijing Time)

   2.Reply you inquiry in 24 working hours.

   3.Offer customer the best price with high quality products.

 

Payment

1.We can accept T/T and western union and paypal order,the best way is direct paypal payment,you can choose yourself.If you want other payment terms,please let us know before when you order.

2.Make sure that you have completed all the details information like contact person,address,post code and telephone number when filling in your buyers information.

 

Our Team 

1.Realpoo Optics,offer better products,offer better service.

2.Activity attitude will let you satisfy!Concentrate on work!

3.Welcome you to inquiry,and thanks for believing in Realpoo Optics Team.

   OEM/ODM ORDERS ARE WARMLY WELCOME!