A long pass filter and a short pass filter fastened together to create a variable bandpass filter with an bandwidth from 20nm to 100nm. The center wavelength allows to be adjusted by combining different long pass filter and short pass filters.
Specifications | Substrate material | UV Grade Fused Silica or BK7 | Diameter | 25.0 +0~-.025 mm | Thickness | 3 ± 0.5 mm | Min. clear aperture | >85% of diameter | Transmission | >90% average within specified range | Attenuation | >99% average within specified range | Angle of incidence | 0° ± 5° | Coating Technology | Electron beam evaporation, dielectric multilayers | LPF Blockings | From 80% of cut-on λ to X-ray with the O.D. of 3 | SPF Blockings | From 120% of cut-off λ to 1200nm(typical) with the O.D. of 3 | Surface quality | 20/10 per MIL-O-13830B | Coating quality | 40/20 per MIL-O-13830B | Wedge | <3 minutes | Wavefront distortion | ≤1 λ @ 633nm per 25mm | Humidity resistance | Per MIL-C-675A | Abrasion resistance | Per MIL-C-675A | Optimum temperature | 23°C | Temperature limits | -50°C to 100°C | Certification | Spectrophotometer print of lot sample | Cleaning | Non-abrasive method, isopropyl alcohol on lens tissue recommended |
Note: Other dimension and specification are available upon request. Laser Edge Filters>>>Narrow Bandpass Filter 
Specifications | Substrate material | UV Grade Fused Silica or BK7 | Diameter | 25.0 +0~-.025 mm | Thickness | 3 ± 0.5 mm | Min. clear aperture | >90% of diameter | Tpeak | >35% | Attenuation | T<0.01% | Angle of incidence | 0° ± 5° | Coating Technology | Electron beam evaporation, dielectric multilayers, or metal induced interference filter | Surface quality | 20/10 per MIL-O-13830B | Wedge | <3 minutes | Wavefront distortion | ≤1 λ @ 633nm per 25mm | Humidity resistance | Per MIL-C-675A | Abrasion resistance | Per MIL-C-675A | Optimum temperature | 23°C | Temperature limits | -50°C to 100°C | Certification | Spectrophotometer print of lot sample | Cleaning | Non-abrasive method, isopropyl alcohol on lens tissue recommended | Wavelength(nm) | 355, 405, 488, 514, 532, 633, 780, 850, 1064 |
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