Applications of monocrystalline germanium windows
1. Infrared optical systems: monocrystalline germanium windows are widely used in infrared imaging systems and infrared spectrometer systems due to their excellent infrared transmission properties.
2. Infrared filter substrates: monocrystalline germanium is not only used to make infrared windows, it is also used as a substrate material for a variety of infrared filters.
3. Infrared lenses: monocrystalline germanium is also an important material for making infrared optical lenses.
4. Thermal imaging technology.
5. Semiconductor devices and solar cells.
Germanium Materials
Germanium is the most commonly used material for making optical lenses and optical windows for efficient infrared imaging
making. Due to its wide transmission range and opacity to visible light, germanium is well suited for infrared lasers and
optical systems for making optical components. Germanium is an ideal material for low-power imaging systems because of its high
refractive index and minimal surface curvature. AR coatings are used due to the high surface reflectivity of the substrate
germanium element.
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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.