Infrared Silicon Lens
Silicon has the advantages of low cost and low density and has become a widely used NIR material for applications ranging from 1.2 to 7 μm. The density of silicon is very low (half of germanium or zinc selenide), so it is very suitable for weight-sensitive applications, especially those in the range of 3-5μm. Its density is 2.33 g/cm3 and its Knoop hardness is 1150. Therefore, it is harder than germanium and less brittle.
Product Code:GA-IRSi
Application of Infrared Silicon Lens
Silicon lenses are mainly used in measuring equipment such as infrared thermometers and infrared thermal imagers.
GiAi Advantage
The silicon lens produced by GiAi is processed with optical-grade single crystal silicon as the substrate, and is coated with anti-reflection coating on both sides. The anti-reflection coating layer can greatly reduce the high reflectivity of the substrate surface, and the whole The film wavelength range can provide an average light transmittance of more than 90%. The product of JieTe silicon lens has a diamond-like coating on the surface, which can strengthen the surface hardness, enhance the life of the lens under the harsh environment and increase the lens's anti-damage threshold.
Specification
| Material | Optical grade Silicon |
| Focal length | ±2%@10.6μm |
| Dimensional tolerance | +0/-0.2m |
| Center thickness tolerance | ±0.1mm |
| Center deviation | 3‘ |
| Aperture | 3 |
| Partial aperture | 0.5 |
| Surface finish | 60-40 |
| Clear aperture | >90% |
| Coating | Infrared AR coating |
Tags: Infrared Filters
