Custom Germanium (Ge) Optical Windows – Infrared IR Glass Lens with DLC/AR Coating for Thermal Imaging & IR Optics
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In-house manufacturing with strict quality control
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Custom coatings for harsh or high-humidity environments
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Large-scale production capacity (750+ pcs/month)
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Global shipping and fast delivery (3–8 working days)
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ISO-certified factory with responsive technical support
Dongqiao Optics offers high-precision Germanium (Ge) windows, designed for infrared (IR) applications across the 2–20 μm wavelength range. Germanium provides excellent internal transmittance and is ideal for systems requiring reliable IR performance.
With over 15 years of experience, we are one of the leading manufacturers of Germanium optics in China. Our Ge windows, lenses, and wedges are widely used in:
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Thermal imaging cameras
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Infrared (IR) sensors
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LIDAR systems
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Pyrometry & thermography
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Medical imaging devices
We offer a full range of custom dimensions and coatings (AR, DLC, BBAR) to meet specific project requirements.
Packaging & Delivery
All Ge windows are packed in anti-static cleanroom containers with secure cushioning for global shipment. Delivery lead time is 3–8 days after order confirmation.
Contact Us
Looking for reliable IR Germanium optics supplier? Get in touch with our sales team today to request a quote or discuss custom orders.
General Specification
| Parameter | Specification |
| Product Name | Optical Germanium (Ge) Windows |
| Diameter Range | 3mm – 400mm |
| Diameter Tolerance | ±0.2mm |
| Thickness Tolerance | ±0.03mm |
| Clear Aperture | >90% |
| Surface Quality | 80/50 to 10/5 (Scratch/Dig) |
| Parallelism | <1 arc minute |
| Chamfer | 0.3–0.5mm @ 45° |
| Coating Options | AR@7–14μm, DLC/AR@7–14μm, BBAR@3–12μm |
