Long wave pass filters provide a wide blocking bandwidth, high blocking depth, high transmission and sharp slope. They are widely used in fluorescence excitation spectrum measurement, Raman spectrum, spectral group and astronomical observation applications. When combining with our short wave pass filters, they can be used to set up variable bandwidth bandpass filters system. We also provide mounted filters which can be easily used in the optical system.
Dimension Tolerance | +0-0.1mm |
Thickness Tolerance | +/-0.1mm |
Surface quality | 60-40 |
TWE | λ/4@633nm |
Clear Aperture | >90% |
Wavelength range | 200-1100nm |
Angel of incidence | 0 degree |
Peak Transmission | >90% |
Blocking depth | OD 4 |
Parallelism | <1 arc minute |
Chamfer | 0.3mm@45 degree |
* Remark:Customized is available |