Import Dlc Ar 3-12um Coated Germanium Window — Buy in wholesale FOB from Supplier in China
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Dlc Ar 3-12um Coated Germanium Window
The Dlc Ar 3-12um Coated Germanium Window is an optical component supplied by Changchun Positive Optics Co., Ltd., based in Changchun, Jilin, China. It is offered in diameters from 0.5 mm up to 2500 mm, providing flexibility for various system designs. The surface quality is specified as 10-5 scratch/dig (S/D), which meets stringent clarity requirements. Material options include Germanium as the primary substrate, with alternatives such as BK7, fused silica, borofloat, CaF2 and MgF2.
Germanium windows are valued for their high transmission in the mid‑infrared region, typically 2‑14 µm, and the supplied coating extends transmission to 3‑12 µm while reducing surface reflectance. The coating is described as durable, a common industry practice to protect against moisture and abrasion; typical anti‑reflective layers achieve <1 % reflectance per surface. A surface flatness of λ/10 (typical) and a parallelism tolerance of 5 arc‑seconds are standard for precision infrared optics. These characteristics make the windows suitable for scientific spectrometers, thermal imaging systems and defence sighting equipment.
Buyers in telecommunications, medical imaging and aerospace frequently specify such windows to ensure low optical loss and mechanical stability. Changchun Positive Optics offers flexible minimum order quantities and can ship under CIF or FOB terms, but exact MOQ and lead time should be confirmed directly. The supplier’s harbour‑level verification indicates basic compliance checks, while buyers are advised to request material certificates and coating test reports before finalising the order.
| Diameter range | 0.5 mm - 2500 mm (as listed) |
| Surface quality | 10-5 S/D (as listed) |
| Substrate material | Germanium (primary, as listed) |
| Alternative substrate options | BK7, fused silica, borofloat, CaF2, MgF2 (as listed) |
| Coating type | Durable multi‑layer coating for 3‑12 µm (as listed) |
| Typical transmission range | 2‑14 µm (typical) |
| Typical anti‑reflective reflectance | <1 % per surface (typical) |
| Typical flatness | λ/10 (typical) |
| Typical operating temperature | - 40 °C to 200 °C (typical) |
| Typical packaging | Protective anti‑static pouch with foam insert (typical) |
Changchun Positive Optics Co., Ltd. is located at No.218, Yuandadajie, Changchun, Jilin 130000, China. The supplier holds a harbour‑level trust tier, indicating that basic verification procedures have been completed, although the listed response rate is currently zero. The company specialises in precision optical components and offers a range of custom‑finished windows for infrared applications.
The firm’s catalogue includes germanium, BK7, fused silica and other high‑performance substrates, with options for various anti‑reflective and protective coatings. While the public listing does not disclose production capacity or client list, the supplier states the ability to meet custom size requests and provides standard quality documentation upon request.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Sourcing Dlc Ar 3-12um Coated Germanium Window from Changchun Positive Optics Co., Ltd. - China Import Guide
Before placing an order, importers should request the material certification for the germanium substrate, the coating test report and the surface quality inspection certificate. Verifying that the transmission curve covers the required 3‑12 µm band and that the flatness meets λ/10 will reduce the risk of downstream performance issues.
Logistics for shipments from Changchun typically involve either FOB at the port of Dalian or CIF to the buyer’s destination. Because the supplier’s response rate is currently zero, buyers should negotiate clear lead‑time expectations, preferred Incoterms and payment milestones, such as a 30 % deposit and balance against documentary proof of shipment.
Quality assurance is best supported by arranging a third‑party inspection at the factory or upon arrival. Request an inspection report covering dimensional checks, coating adhesion and surface defect count, and ensure that the supplier can provide a full set of test certificates, including refractive index and transmission data, as part of the export documentation.
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30 suppliersBuy Dlc Ar 3-12um Coated Germ in Bulk — Verified Supplier in China
When sourcing Dlc Ar 3-12um Coated Germanium Window for your business, securing the right balance of quality and cost is essential. Changchun Positive Optics Co., Ltd., a verified supplier based in China, offers this product for international export. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $1.99/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is a staple in the Optical Lenses sector with strong demand from importing countries worldwide.
Dlc Ar 3-12um Coated Germ Specifications, Trade Terms & Pricing
Importing Dlc Ar 3-12um Coated Germ requires careful attention to shipping logistics, customs compliance, and secure payment terms. Changchun Positive Optics Co., Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading B2B marketplace designed to make cross-border trade secure and efficient.
About Changchun Positive Optics Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Dlc Ar 3-12um Coated Germ has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Optical Lenses category and connect with top-tier exporters on our comprehensive global B2B marketplace. Start your sourcing journey today.
Import Dlc Ar 3-12um Coated Germ — Shipping, Logistics & Customs
Importing Dlc Ar 3-12um Coated Germ requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About Dlc Ar 3-12um Coated Germ
What is the wholesale price of Dlc Ar 3-12um Coated Germanium Window?
The current listed wholesale price for Dlc Ar 3-12um Coated Germanium Window from Changchun Positive Optics Co., Ltd. is $1.99/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Changchun Positive Optics Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Dlc Ar 3-12um Coated Germ?
The supplier, Changchun Positive Optics Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Dlc Ar 3-12um Coated Germ. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Dlc Ar 3-12um Coated Germanium Window?
The HS Code classification for Dlc Ar 3-12um Coated Germanium Window depends on the specific grade and form. Contact Changchun Positive Optics Co., Ltd. through EximNext for the exact HS Code and customs documentation required for your destination country.
How can I import Dlc Ar 3-12um Coated Germ from China?
To import Dlc Ar 3-12um Coated Germ from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Changchun Positive Optics Co., Ltd.. Ensure you have the necessary import licenses for Optical Lenses products in your destination country.
Is Changchun Positive Optics Co., Ltd. a verified supplier?
Yes, Changchun Positive Optics Co., Ltd. is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of Dlc Ar 3-12um Coated Germanium Window?
For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to Changchun Positive Optics Co., Ltd. through EximNext.
What packaging options are available for bulk orders of Dlc Ar 3-12um Coated Germ?
Changchun Positive Optics Co., Ltd. offers Dlc Ar 3-12um Coated Germ with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Dlc Ar 3-12um Coated Germ the most?
Dlc Ar 3-12um Coated Germ is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Changchun Positive Optics Co., Ltd. through our platform.
What certifications does this Dlc Ar 3-12um Coated Germ supplier hold?
Changchun Positive Optics Co., Ltd. maintains international quality certifications. These ensure that the Dlc Ar 3-12um Coated Germ meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Dlc Ar 3-12um Coated Germanium Window on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Changchun Positive Optics Co., Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Changchun Positive Optics Co., Ltd..
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