A lens is a device that can converge or disperse light, and the resulting image can be real or virtual. It is widely used in various fields such as security, car wear, digital camera, laser, optical instrument and so on. Various common colorless optical glasses including fused silica, calcium fluoride, magnesium fluoride, silicon, germanium, zinc selenide and other materials; and plano-convex lenses, bi-convex lenses, plano-concave lenses, bi-concave lenses, super Hemispherical lens, small spherical lens, meniscus lens, cemented lens, etc. The lens is made according to the law of light refraction. A lens is an optical element made of transparent materials . The lens is a refracting lens, and its refractive surface is a transparent body with two spherical surfaces (part of the spherical surface) or one spherical surface (part of the spherical surface) and one plane. The images it forms are real and virtual. Lenses can generally be divided into two categories: convex lenses and concave lenses. The center part is thicker than the edge part is called a convex lens, there are three kinds of biconvex, plano-convex, and concave-convex; the center part is thinner than the edge part is called a concave lens, and there are three kinds of bi-concave, plano-concave, and convex-concave.
specification:
| Material |
optical glass |
| Design Wavelength |
632.8 nm |
| Surface Figure |
λ/2 |
| Diameter Tolerance |
+0.1, -0.1 mm |
| Thickness Tolerance |
±0.2 mm |
| Paraxial Focal Length |
±2% |
| Centration |
<3 arc minutes |
| Clear Aperture |
>85% |
| Surface Quality |
60-40 scratch and dig |
| Protective Bevel |
0.25 mm x 45° |
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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