Item No: UI-5205
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FAQ:
1.Q: Can you send us samples?
  A: We are pleased to send you the sample to test the quality and market.
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2.Q: About your products, could you do it OEM?
  A: Yes, OEM is workable for us, but with MOQ.
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3.Q: Have you guarantee for your products?
  A: Normally we provide one year guarantee with spare parts supply.
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4.Q: Do you also provide spare parts of pneumatic tools?Â
  A: Once we confirm the models you'd like to order, we will send you the diagram for checking and also suggest you some easy-broken parts.
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5.Q: For the product, could you spray other color of painting?
  A: Yes, color can be customized but with MOQ.
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6.Q: What's the delivery time?
  A: It usually takes about 20-30 working days to produce one order.
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7.Q: How is the payment terms?
  A: Normally T/T 30% in advance and T/T 70% before shipment.
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8.Q: Can I mix different models in one container?
  A: Yes, different models can be mixed in one container, but the quantity of each model should not be less than MOQ.
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9.Q: How does your factory do regarding quality control?
  A: We always pay great attention to quality control from the very beginning and every product was tested piece by piece before delivery.
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10.Q: Do you have quality certification?
   A: Yes, we have CE, GS, RHOS ect.
Meniscus Lenses: The Positive Meniscus can increase the NA of the system while only adding slightly to the total spherical aberrations. The Negative Meniscus Lens is used to increase the focal length of another lens while maintaining the angular resolution of the optical assembly. This lens shape is best used when one conjugate is relatively far from the lens. The meniscus lens plays a divergent role in the optical path, and is commonly used in photographic system, objective lens system and laser measuring system.
We supply kinds of Plano-Convex Spherical Lens,Plano-Concave Spherical Lens,bi-convex Spherical Lens,bi-concave spherical lens,meniscus spherical lens,special spherical lens,achromatic spherical lens,ball lens,sphere lens etc.
Specification of our optical meniscus spherical lens as follow:
*Material BK7,CaF2 crystal,MgF2,Ge,BaF2 lens,ZnSe or other optical materials
*Dimension Tolerance +0.0 - -0.1mm
*Center Thickness +/-0.1mm
*Focal Length Tolerance+/-1%
*Surface Quality:60/40
*Surface Figure:lambda/2 at 633nm on plano side
*Clear Aperture >90%
*Chamfer 0.25mm at 45 degree typical
*Coating Optional
Meniscus Spherical Lens,Meniscus Spherical Lenses,Optical Glass Meniscus Lens,Glass Meniscus Lens
China Star Optics Technology Co.,Ltd. , https://www.realpoooptics.com