Monocrystalline silicon possesses extremely high transmittance in the infrared band from 1.2μm to 7μm (especially the 3-5μm mid-wave infrared atmospheric window), making it a mature material for fabricating infrared lenses, windows, prisms, and other components. We provide standard-level surface treatments that consistently meet Chinese National Standard III or US Military Standard 40-20. This standard is a recognized, mature, and cost-effective surface specification in the field of infrared optics, effectively balancing performance and cost, and providing a clean and uniform substrate for subsequent coatings.
Model: Infrared single-crystal silicon
Specifications: Customized
Material: single-crystal silicon
Product Features
High-purity silicon material with a complete and uniform crystal structure ensures consistent optical performance across the entire silicon wafer and batch products, avoiding stray light and performance fluctuations caused by internal material defects. High Mohs hardness and wear resistance contribute to a longer service life, while the high thermal conductivity of monocrystalline silicon wafers facilitates heat dissipation, effectively ensuring the stability of the optical system during continuous operation.
Transmittance wavelength characteristics (reference data)
Applications
Lidar: BP905 wideband filter is widely used in Lidar systems. Lidar systems usually use lasers of specific wavelengths to measure parameters such as distance and speed, and BP905 filter can ensure that the system only receives laser signals of specific wavelengths, thereby improving the accuracy and reliability of measurement.
Infrared imaging: In infrared imaging systems, BP905 wideband filter can be used to filter out unwanted wavelengths, thereby enhancing the contrast and clarity of the image. This is particularly important in the fields of medical, military, security, etc.
Biometrics: BP905 wideband filter can also be used in biometrics, such as iris recognition, face recognition, etc. By filtering out interfering light, the filter helps to improve the accuracy and stability of the biometric system.
