Stylo Laser
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Silicon (Si) and germanium (Ge) are the most widely used infrared optical materials. They feature metallic luster, high hardness, high refractive index, and small dispersion. While opaque in the visible light band, they offer excellent transmittance in the infrared band (3 ~ 5um).
Due to its lightweight and high transmittance in middle wave infrared systems, Monocrystalline Silicon is extensively utilized for optical lenses and infrared windows in aerospace, aviation, and ground thermal imaging systems.
| Technical Data | Description & Value |
| Substrate | Monocrystalline silicon |
| Focal Length | +-2% @10.6um |
| Size Tolerance | 0/-0.15mm |
| Thickness Tolerance | +/-0.05mm |
| Optical Character | 2-5um @ Tave < 1%; 5.5-14um @Tave > 85% |
| Parallelism | Less than 1 arc min |
| Surface Finish | 60-40 scratch-dig |
| Available Sizes | 4" or 6" |
The infrared sensor filter primarily utilizes monocrystalline silicon as a substrate. Material thin films with varying refractive indices and thicknesses are alternately plated on the substrate to provide specific functions: long pass, short pass, band pass, antireflection, and reflection.
