The BP905 bandpass filter is an optical infrared filter product currently used in domestic MEMS solid-state lidar scanning. The filter in the 905nm band can increase the laser power and is safer for the human eye. The lidar light source used with the BP905 bandpass infrared filter has been used by some domestic manufacturers to achieve a detection distance of more than 200 meters, and more manufacturers are currently exploring the performance of the 905nm band.
Model: BP905 Bandpass Filter
Specifications: Customized
Material: Optical Glass
Product Features
Center Wavelength: The center wavelength of the BP905 wideband pass filter is usually 905nm, which means that it mainly allows light close to this wavelength to pass through.
Bandwidth: Although it is called “wideband pass”, some of the wavelength ranges it passes are still limited compared to the entire spectral range, but wider than narrowband filters. The specific bandwidth may vary by manufacturer and product.
High transmittance: Near the center wavelength, the filter has high transmittance, which helps to ensure that the intensity of the light signal passing through the filter is high enough.
High preset depth: For wavelengths that are not in the passband, the filter has a deep preset characteristic, which helps to reduce the impact of interfering light.
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.
