The filter is an optical device used to select the required radiation band. A common feature of filters is that no filter can make the imaging of celestial bodies brighter, because all filters will absorb certain wavelengths, making objects darker.
Long-wavelength long-pass filter (also known as high pass filter): refers to the passage of light longer than the selected wavelength and the cut-off of light shorter than the wavelength, such as infrared transmission filter.
The Main Characteristic Parameters Of Long Wavelength Pass Filter Are:
①: Passing Wavelength;
②: Blocking Wavelength;
③: Transmittance Through Wavelength;
④: Blocking Wavelength Transmittance;
Long Wavelength Pass Filters Are Mainly Used In Medical Testing Instruments, Iris Recognition, Digital Images, Multi-Band Detection, Stage Lighting, Beauty Instruments, And Other Fields.
Long-wavelength long-pass filter (also known as high pass filter): refers to the passage of light longer than the selected wavelength and the cut-off of light shorter than the wavelength, such as infrared transmission filter.
The Main Characteristic Parameters Of Long Wavelength Pass Filter Are:
①: Passing Wavelength;
②: Blocking Wavelength;
③: Transmittance Through Wavelength;
④: Blocking Wavelength Transmittance;
Long Wavelength Pass Filters Are Mainly Used In Medical Testing Instruments, Iris Recognition, Digital Images, Multi-Band Detection, Stage Lighting, Beauty Instruments, And Other Fields.
Long-Wavelenth Pass Filter