在光譜的紅外區域，帶通濾光片經常用于氣體分析應用。Andover提供常用波長的標準氣體分析濾光片選擇。我們還可以生產波長高達14μm的定制濾光片。 這些濾光片由光學質量的紅外透射基板上的堅硬耐用的上表面介電涂層構成，可承受與任何高質量光學元件相關的正常清潔和處理。
| Diameter: | 25.0+0/-.1mm |
| Min. Clear Aperture: | 21mm Dia. |
| Transmission: | 75% min, 90% typical |
| 24-hour humidity: | per MIL-C-48497A |
| Moderate Abrasion: | per MIL-C-48497A |
| Adhesion: | per MIL-C-48497A |
| 2700.0nm CWL, 110nm Bandwidth, 25.0 Diameter | |
| PART NO. | 2.70GA05-25 |
| Center Wavelength | 2700.0+30/-30 nm |
| Bandwidth | 110+30/-30 nm |
| Transmission | 75% |
| Blocking | 1x10-3 avg. X-Ray to 30 |
| Size | 25.0 +0/-0.2mm |
| Thickness | 1.0 +0.2/-0.2 mm |
| Gas | Water vapor |
| 2950.0nm CWL, 110nm Bandwidth, 25.0 Diameter | |
| PART NO. | 2.95GA05-25 |
| Center Wavelength | 2950.0+30/-30 nm |
| Bandwidth | 110+30/-30 nm |
| Transmission | 75% |
| Blocking | 1x10-3 avg. X-Ray to 30 |
| Size | 25.0 +0/-0.2mm |
| Thickness | 1.0 +0.2/-0.2 mm |
| Gas | Water vapor |
| 3460.0nm CWL, 140nm Bandwidth, 25.0 Diameter | |
| PART NO. | 3.46GA05-25 |
| Center Wavelength | 3460.0+40/-40 nm |
| Bandwidth | 140+30/-30 nm |
| Transmission | 75% |
| Blocking | 1x10-3 avg. X-Ray to 30 |
| Size | 25.0 +0/-0.2mm |
| Thickness | 1.0 +0.2/-0.2 mm |
| Gas | Methanol and Ethanol |
| 3600nm CWL, 140nm Bandwidth, 25.0 Diameter | |
| PART NO. | 3.60GA05-25 |
| Center Wavelength | 3600+40/-40 nm |
| Bandwidth | 140+30/-30 nm |
| Transmission | 75% |
| Blocking | 1x10-3 avg. X-Ray to 30 |
| Size | 25.0 +0/-0.2mm |
| Thickness | 1.0 +0.2/-0.2 mm |
| Gas | Formaldehyde |
| 4000nm CWL, 2000nm Bandwidth, 25.0 Diameter | |
| PART NO. | 4.00GA20-25 |
| Center Wavelength | 4000+200/-200 nm |
| Bandwidth | 2000+200/-200 nm |
| Transmission | 80% (avg) |
| Blocking | T(avg) <0.1 UV to 7000nm |
| Size | 25.0 +0.0/-0.2mm |
| Thickness | 1.00 +0.2/-0.2 mm |
| Gas | SWIR |
| 4000nm CWL, 2000nm Bandwidth, 50.0 Diameter | |
| PART NO. | 4.00GA20-50 |
| Center Wavelength | 4000+200/-200 nm |
| Bandwidth | 2000+200/-200 nm |
| Transmission | 80avg |
| Blocking | T(avg) <0.1 UV to 7000nm |
| Size | 50.0 +0.0/-0.2mm |
| Thickness | 1.00 +0.2/-0.2 mm |
| Gas | |
| 4260.0nm CWL, 120nm Bandwidth, 25.0 Diameter | |
| PART NO. | 4.26GA05-25 |
| Center Wavelength | 4260.0+40/-40 nm |
| Bandwidth | 120+30/-30 nm |
| Transmission | 75% |
| Blocking | 1x10-3 avg. X-Ray to 30 |
| Size | 25.0 +0/-0.2mm |
| Thickness | 1.0 +0.2/-0.2 mm |
| Gas | CO2 |
| 4670.0nm CWL, 150nm Bandwidth, 25.0 Diameter | |
| PART NO. | 4.70GA05-25 |
| Center Wavelength | 4670.0+50/-50 nm |
| Bandwidth | 150+30/-30 nm |
| Transmission | 75% |
| Blocking | 1x10-3 avg. X-Ray to 30 |
| Size | 25.0 +0/-0.2mm |
| Thickness | 1.0 +0.2/-0.2 mm |
| Gas | CO |
| 5300.0nm CWL, 420nm Bandwidth, 25.0 Diameter | |
| PART NO. | 5.30GA05-25 |
| Center Wavelength | 5300.0+50/-50 nm |
| Bandwidth | 420+50/-50 nm |
| Transmission | 70% |
| Blocking | 1x10-3 avg. X-Ray to 30 |
| Size | 25.0 +0/-0.2mm |
| Thickness | 1.0 +0.2/-0.2 mm |
| Gas | NO |
| 10000nm CWL, 4000nm Bandwidth, 25.0 Diameter | |
| PART NO. | 10.00GA40-25 |
| Center Wavelength | 10000+300/-300 nm |
| Bandwidth | 4000+500/-500 nm |
| Transmission | > 80 % Ave |
| Blocking | < 0.1 % (avg) UV to 17 microns |
| Size | 25.0 +0.0/-0.2mm |
| Thickness | 1.0 +0.2/-0.2 mm |
| Gas | FIR Broadband |
| 10000nm CWL, 4000nm Bandwidth, 50.0 Diameter | |
| PART NO. | 10.00GA40-50 |
| Center Wavelength | 10000+300/-300 nm |
| Bandwidth | 4000+500/-500 nm |
| Transmission | > 80 % Ave |
| Blocking | < 0.1 % (avg) UV to 17 microns |
| Size | 50.0 +0.0/-0.2mm |
| Thickness | 1.0 +0.2/-0.2 mm |
| Gas | |
| 10600nm CWL, 1500nm Bandwidth, 12.5 Diameter | |
| PART NO. | 10.60GA15-12.5 |
| Center Wavelength | 10600+100/-100 nm |
| Bandwidth | 1500+100/-100 nm |
| Transmission | > 80 % |
| Blocking | 1x10-3 avg 200nm to16.5 m |
| Size | 12.5 +0.0/-0.2mm |
| Thickness | 1.0 +0.2/-0.2 mm |
| Gas | CO2 Laser |
| 10600nm CWL, 1500nm Bandwidth, 25.0 Diameter | |
| PART NO. | 10.60GA15-25 |
| Center Wavelength | 10600+100/-100 nm |
| Bandwidth | 1500+100/-100 nm |
| Transmission | > 80 % |
| Blocking | 1x10-3 avg 200nm to16.5 m |
| Size | 25.0 +0.0/-0.2mm |
| Thickness | 1.0 +0.2/-0.2 mm |
| Gas | CO2 Laser |
| 10600nm CWL, 1500nm Bandwidth, 50.0 Diameter | |
| PART NO. | 10.60GA15-50 |
| Center Wavelength | 10600+100/-100 nm |
| Bandwidth | 1500+100/-100 nm |
| Transmission | > 80 % |
| Blocking | 1x10-3 avg 200nm to16.5 m |
| Size | 50.0 +0.0/-0.2mm |
| Thickness | 1.0 +0.2/-0.2 mm |
| Gas | CO2 Laser |
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