Bandpass filters allow high transmittance of light in a specific band and cut off all other bands to ensure a high signal-to-noise ratio of transmitted light. The transmittance zone can cover the near-ultraviolet, visible and near-infrared regions. The main application scope of the products: irisrecognition, face recognition, barcode scanning, optical medical equipment, security monitoring, COMS imaging system, infrared laser rangefinder, etc. |