Shortpass Filter

Shortpass Filter



Shortpass filter has the advantages of wide cut-off band, deep cut-off depth, high conversion steepness and high transmittance. It can be widely used in fluorescence excitation spectroscopy measurement, Raman spectroscopy application, spectral grouping application, and astronomical observation application, etc. It can also be widely used in imaging optical system, machine vision system application, used to eliminate the interference light beyond the available band, greatly improve the imaging clarity, as well as the sensitivity of the system.

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Shortpass filter has the advantages of wide cut-off band, deep cut-off depth, high conversion steepness and high transmittance. It can be widely used in fluorescence excitation spectroscopy measurement, Raman spectroscopy application, spectral grouping application, and astronomical observation application, etc. It can also be widely used in imaging optical system, machine vision system application, used to eliminate the interference light beyond the available band, greatly improve the imaging clarity, as well as the sensitivity of the system.



Products Description



Shortpass filter refers to the function of isolating the long wave and passing through the Short wave when the Short wave direction is transmitted within a specific wavelength range and the long wave direction is cut off.


Material:                                          
 Fused silica, N-BK7, H-K9L, B270, Float glass,etc.
CWL Tolerance:  +/-1%
Cut-off depth:
 OD4
Parallel:  <30 arc second
Transmittance  90%
Clear aperture:
 90%
Bevel:
 0.2mmX45° Protective bevel    
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