在光谱的红外区域，带通滤光片经常用于气体分析应用。Andover提供常用波长的标准气体分析滤光片选择。我们还可以生产波长高达14μm的定制滤光片。 这些滤光片由光学质量的红外透射基板上的坚硬耐用的上表面介电涂层构成，可承受与任何高质量光学元件相关的正常清洁和处理。
| 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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