Bk7 Optical Meniscus Lens for Microscope:
One side of meniscus lens is convex, another side is concave. It can be a convergent lens or a divergent lens, which is decided together by refractive index, curvature and radius
Optical window materials comparison:
| Material |
BK7 or other optical lens |
| Dimension |
2-300mm |
| Dimension Tolerance |
+0.1, -0.1 mm |
| Thickness Tolerance |
+0.1, -0.1 mm |
| Centration |
3 arc minutes |
| Surface Flatness |
1/4 L @632.8nm |
| Surface Quality |
60-40 scratch and dig |
| Protective Bevel |
0.25 mm x 45° |
| Coating |
as customer's requirements |
It is also available to supply the coating wavelength curve, such as AR coating,BBR coating,filter coating and so on.
Changchun Yutai Optics Co.,Ltd. is a manufacturer with ISO9001 certification. We are specialized in high-performance optical components
include lens, mirrors, filters, windows and prisms which are specified by customers. Yutai's items are widely used in imaging, defense, medical,
laser and industry market. As a fast-growing supplier in Optics, Yutai Optics has quickly established itself as a leader in optical components with advanced technology and quality control ability as Yutai aims to provide professional service and good quality items to meet customers' request.
Yutai already established long-term relation with many powerful companies all over the world.
- Q: What are your main products?
- A: Optical lens,mirrors,windows,filters,prisms
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- Q: How long is your delivery time?
- A: In general delivery time is about one month for custom produced optics.except stock ones or some special optics.
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- Q: Do you provide samples ? is it free or extra ?
- A: We can provide free samples if we have stock optics as your request,while custom produced samples are not free.
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- Q:What is your MOQ ?
- MOQ is 10pcs for most of the optics, while MOQ could be only one piece if you need a element in big dimention.
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- Q: What is your terms of payment ?
- T/T,L/C,VISA,Paypal,Alipay or Negotiation.
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