In the range of 3-5 μ m, silicon is the most commonly used material for making optical lens and optical window in high-efficiency infrared imaging system. Silicon has the characteristics of high refractive index (about 3.4 at 3-5 μ M band), small surface curvature and color difference.
Opticreate produces high-precision silicon window and lens, could do AR coating and DLC (Diamond like carbon) coating according to customers' requirements
|Focal length tolerance||±2%（for lens）|
|Centration||≤0.01mm(high precision 0.005mm)|
|Bevel||0.25 mm × 45°|
|Coating||AR Coating，DLC coating（Diamond like carbon）|