Focusing on R&D and manufacturing high-end optical products and customized products.

 Yong Hee
Infrared Metallized Windows
    Publish time 2023-03-20 00:00    

The infrared window's dimensions, substrate material, and working band of the optical window can be customized according to user needs. The typical coatings are: T≥98.5%@3~5μm, 5~8μm, 8~12μm, and the surface quality of the light-transmitting area is better than that of MIL-PRF-13830B 40/20, up to 10/5; the thickness of the Au layer on the edge of the metallization layer can reach 1.5-2 μm, and the thickness of the Au layer on the side can reach 1-1.5 μm, which can ensure the concentricity of the metal ring and the optical film to the greatest extent. Ensure the maximum welding area and guarantee the customer's subsequent coupling accuracy between the optical window and the detector shell; this product can be directly welded to the metallized shell or installed on the optical mechanical assembly, suitable for AuSn, AuGe, In, InSn solder, it can withstand high temperature of 450°C for 10 minutes and also enables customers to achieve reliable hermetic packaging.


Infrared metallized window products are mainly used for vacuum packaging of refrigeration and non-cooling units, multi-element and focal plane infrared detectors. Through metal solder, the edge of the optical window and the detector shell are connected with high reliability and low leakage rate. welding. This product can be widely used in military, aerospace, industry, transportation, security, epidemic prevention and other fields.

Circular window parameters:

Substrate material: monocrystalline silicon

Dimensions: Φ25×2mm

Optical parameters: T≥98.5%@3~5μm

Surface quality: Better than MIL-PRF-13830B 20/10

Metallization layer: TiPtAu, film thickness 1.2μm±10%

Concentricity of metallized graphics: better than 0.05mm

Square window parameters:

Substrate material: single crystal germanium

Dimensions: 40×25×3mm

Optical parameters: T≥98%@8~12μm

Surface quality: Better than MIL-PRF-13830B 40/20

Metallization layer: NiCrAu, film thickness 1.5μm±10%

Spectral curve of transmittance:



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