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ISO 9001 - AS 9100 - ITAR Standard & Custom Optical Filters and Coatings
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Andover infrared IR filters for gas analysis at popular wavelengths

STANDARD IR BANDPASS FILTERS

In the infrared region of the spectrum, bandpass filters are frequently used for gas analysis applications. Andover offers a standard selection of gas analysis filters at popular wavelengths. We can also produce custom filters at wavelengths up to 14µm. Constructed of durable first-surface dielectric coatings on optical-quality IR-transmitting substrates, these filters will withstand normal cleaning and handling associated with any high-quality optical component. 

For your convenience and economy, we offer the filters in 25mm dia. However, we can produce custom sizes and shapes, as well as custom optical characteristics. Contact our technical sales department for a quotation.

*HIGH VOLUME* - This product lends itself to being produced in large quantities at competitive pricing. Email info@andcorp.com or fill out a contact form for details.

Can't find what you're looking for? Check our surplus listings for more options.

 

BENEFITS
  • High Quality Optical
  • Available from stock
  • Custom sizes available
                  
COMMON APPLICATIONS
  • Thermal imaging
  • Weapons systems
  • Detector windows
  • IR photography
                 

INFRARED FILTERS

IR Bandpass Filters

IR Neutral Density Filters

IR Neutral Density Filter Sets

Standard IR Long Wave Pass

Custom IR Long Pass Filters

Infrared Windows and Substrates

Antireflective Coating 

Surplus IR Edge Filters

Surplus Bandpass Filters

 

 

 

Diameter: 25.0+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
PART NO.
DESCRIPTION
1 - 5 pcs.
6 - 10 pcs.
> 10 pcs.
Stock Status
Buy
Available Items
2.70GA05-25
Standard BP filter CWL 2700.0nm/HBW 120.0nm/25mm dia.
$356.00
$306.00
$271.00
6
Qty To Buy:
Center Wavelength2700.0+30/-30 nm
Bandwidth110+30/-30 nm
Transmission75%
Blocking1x10-3 avg. X-Ray to 30µ
Size25.0 +0/-0.2mm
Thickness1.0 +0.2/-0.2 mm
Scratch-Dig80/50
Clear Aperture22mm dia.
Flatness2 or better at 633
Parallelism< 5 arc minutes
SubstrateSapphire
GasWater vapor
CSV File (typical)2.70GA05.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$356.00
6 - 10 pcs.$306.00
> 10 pcs.$271.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
2.95GA05-25
Standard BP filter CWL 2950.0nm/HBW 110.0nm/25mm dia.
$356.00
$306.00
$271.00
27
Qty To Buy:
Center Wavelength2950.0+30/-30 nm
Bandwidth110+30/-30 nm
Transmission75%
Blocking1x10-3 avg. X-Ray to 30µ
Size25.0 +0/-0.2mm
Thickness1.0 +0.2/-0.2 mm
Scratch-Dig80/50
Clear Aperture22mm dia.
Flatness2 or better at 633
Parallelism< 5 arc minutes
SubstrateSapphire
GasWater vapor
CSV File (typical)2.95GA05.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$356.00
6 - 10 pcs.$306.00
> 10 pcs.$271.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
3.46GA05-25
Standard BP filter CWL 3460nm/HBW 140nm/25mm dia.
$356.00
$306.00
$271.00
10
Qty To Buy:
Center Wavelength3460.0+40/-40 nm
Bandwidth140+30/-30 nm
Transmission75%
Blocking1x10-3 avg. X-Ray to 30µ
Size25.0 +0/-0.2mm
Thickness1.0 +0.2/-0.2 mm
Scratch-Dig80/50
Clear Aperture22mm dia.
Flatness2 or better at 633
Parallelism< 5 arc minutes
SubstrateSapphire
GasMethanol and Ethanol
CSV File (typical)3.46GA05.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$356.00
6 - 10 pcs.$306.00
> 10 pcs.$271.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
3.60GA05-25
Standard BP filter CWL 3600nm/HBW 140nm/25mm dia.
$356.00
$306.00
$271.00
Sold Out
Qty To Buy:
Center Wavelength3600+40/-40 nm
Bandwidth140+30/-30 nm
Transmission75%
Blocking1x10-3 avg. X-Ray to 30µ
Size25.0 +0/-0.2mm
Thickness1.0 +0.2/-0.2 mm
Scratch-Dig80/50
Clear Aperture22mm dia.
Flatness2 or better at 633
Parallelism< 5 arc minutes
SubstrateSapphire
GasFormaldehyde
CSV File (typical)3.60GA05.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$356.00
6 - 10 pcs.$306.00
> 10 pcs.$271.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
4.00GA20-12.5
Standard BP filter CWL 4000nm/HBW 2000nm/12.5mm dia.
$115.00
$99.00
$87.00
17
Qty To Buy:
Center Wavelength4000+200/-200 nm
Bandwidth2000+200/-200 nm
Transmission80% (avg)
BlockingT(avg) <0.1 UV to 11000nm
Size50.0+0.0/-0.2mm
Thickness1.00 +0.2/-0.2 mm
Scratch-Dig80/50
Clear Aperture10mm ¯ min
Flatness5 or better at of Interest
Parallelism< 10 arc minutes
Substratesilicon
Gas
CSV File (typical)4.00GA20.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$115.00
6 - 10 pcs.$99.00
> 10 pcs.$87.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
4.00GA20-25
Standard BP filter CWL 4000nm/HBW 2000nm/25mm dia.
$235.00
$202.00
$179.00
37
Qty To Buy:
Center Wavelength4000+200/-200 nm
Bandwidth2000+200/-200 nm
Transmission80% (avg)
BlockingT(avg) <0.1 UV to 11000nm
Size25.0 +0.0/-0.2mm
Thickness1.00 +0.2/-0.2 mm
Scratch-Dig80/50
Clear Aperture22mm dia.
Flatness5 or better at of Interest
Parallelism< 10 arc minutes
Substratesilicon
GasSWIR
CSV File (typical)4.00GA20.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$235.00
6 - 10 pcs.$202.00
> 10 pcs.$179.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
4.00GA20-50
Standard BP filter CWL 4000nm/HBW 2000nm/50mm dia.
$475.00
$409.00
$361.00
Sold Out
Qty To Buy:
Center Wavelength4000+200/-200 nm
Bandwidth2000+200/-200 nm
Transmission80% (avg)
BlockingT(avg) <0.1 UV to 11000nm
Size50.0+0.0/-0.2mm
Thickness1.00 +0.2/-0.2 mm
Scratch-Dig80/50
Clear Aperture45mm ¯ min
Flatness5 or better at of Interest
Parallelism< 10 arc minutes
Substratesilicon
Gas
CSV File (typical)4.00GA20.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$475.00
6 - 10 pcs.$409.00
> 10 pcs.$361.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
4.26GA05-25
Standard BP filter CWL 4260nm/HBW 120nm/25mm dia.
$356.00
$306.00
$271.00
12
Qty To Buy:
Center Wavelength4260.0+40/-40 nm
Bandwidth120+30/-30 nm
Transmission75%
Blocking1x10-3 avg. X-Ray to 30µ
Size25.0 +0/-0.2mm
Thickness1.0 +0.2/-0.2 mm
Scratch-Dig80/50
Clear Aperture22mm dia.
Flatness2 or better at 633
Parallelism< 5 arc minutes
SubstrateSapphire
GasCO2
CSV File (typical)4.26GA05.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$356.00
6 - 10 pcs.$306.00
> 10 pcs.$271.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
4.70GA05-25
Standard BP filter CWL 4700nm/HBW 150nm/25mm dia.
$356.00
$306.00
$271.00
16
Qty To Buy:
Center Wavelength4670.0+50/-50 nm
Bandwidth150+30/-30 nm
Transmission75%
Blocking1x10-3 avg. X-Ray to 30µ
Size25.0 +0/-0.2mm
Thickness1.0 +0.2/-0.2 mm
Scratch-Dig80/50
Clear Aperture22mm dia.
Flatness2 or better at 633
Parallelism< 5 arc minutes
SubstrateSapphire
GasCO
CSV File (typical)4.70GA05.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$356.00
6 - 10 pcs.$306.00
> 10 pcs.$271.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
5.30GA05-25
Standard BP filter CWL 5300nm/HBW 600nm/25mm dia.
$356.00
$306.00
$271.00
2
Qty To Buy:
Center Wavelength5300.0+50/-50 nm
Bandwidth420+50/-50 nm
Transmission70%
Blocking1x10-3 avg. X-Ray to 30µ
Size25.0 +0/-0.2mm
Thickness1.0 +0.2/-0.2 mm
Scratch-Dig80/50
Clear Aperture22mm dia.
Flatness2 or better at 633
Parallelism< 5 arc minutes
SubstrateSapphire
GasNO
CSV File (typical)5.30GA05.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$356.00
6 - 10 pcs.$306.00
> 10 pcs.$271.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
10.00GA40-25
Standard BP filter CWL 10000nm/HBW 4000nm/25mm dia.
$772.00
$664.00
$587.00
6
Qty To Buy:
Center Wavelength10000+300/-300 nm
Bandwidth4000+500/-500 nm
Transmission> 80 % Ave
Blocking< 0.1 % (avg) UV to 17 microns
Size25.0 +0.0/-0.2mm
Thickness1.0 +0.2/-0.2 mm
Scratch-Dig80/50
Clear Aperture22mm dia.
Flatness5 or better at of Interest
Parallelism< 10 arc minutes
SubstrateGe
GasFIR Broadband
CSV File (typical)10.00GA40.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$772.00
6 - 10 pcs.$664.00
> 10 pcs.$587.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
10.00GA40-50
Standard BP filter CWL 10000nm/HBW 4000nm/50mm dia.
$1,923.00
$1,654.00
$1,461.00
7
Qty To Buy:
Center Wavelength10000+300/-300 nm
Bandwidth4000+500/-500 nm
Transmission> 80 % Ave
Blocking< 0.1 % (avg) UV to 17 microns
Size50.0 +0.0/-0.2mm
Thickness1.0 +0.2/-0.2 mm
Scratch-Dig80/50
Clear Aperture45mm ¯ min
Flatness5 or better at of Interest
Parallelism< 10 arc minutes
SubstrateGe
Gas
CSV File (typical)10.00GA40.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$1,923.00
6 - 10 pcs.$1,654.00
> 10 pcs.$1,461.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
10.60GA15-12.5
Standard BP filter CWL 10600nm/HBW 1500nm/12.5mm dia.
$423.00
$364.00
$321.00
10
Qty To Buy:
Center Wavelength10600+100/-100 nm
Bandwidth1500+100/-100 nm
Transmission> 80 %
Blocking1x10-3 avg 200nm to 16.5 µm
Size12.5 +0.0/-0.2mm
Thickness1.0 +0.2/-0.2 mm
Scratch-Dig80/50
Clear Aperture10mm ¯ min
Flatness5 or better at WL of Interest
Parallelism< 10 arc minutes
SubstrateGe
GasCO2 Laser
CSV File (typical)10.60GA15.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$423.00
6 - 10 pcs.$364.00
> 10 pcs.$321.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
10.60GA15-25
Standard BP filter CWL 10600nm/HBW 1500nm/25mm dia.
$737.00
$634.00
$560.00
7
Qty To Buy:
Center Wavelength10600+100/-100 nm
Bandwidth1500+100/-100 nm
Transmission> 80 %
Blocking1x10-3 avg 200nm to 16.5 µm
Size25.0 +0.0/-0.2mm
Thickness1.0 +0.2/-0.2 mm
Scratch-Dig80/50
Clear Aperture22mm dia.
Flatness5 or better at of Interest
Parallelism< 10 arc minutes
SubstrateGe
GasCO2 Laser
CSV File (typical)10.60GA15.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$737.00
6 - 10 pcs.$634.00
> 10 pcs.$560.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
10.60GA15-50
Standard BP filter CWL 10600nm/HBW 1500nm/50mm dia.
$2,099.00
$1,805.00
$1,595.00
6
Qty To Buy:
Center Wavelength10600+100/-100 nm
Bandwidth1500+100/-100 nm
Transmission> 80 %
Blocking1x10-3 avg 200nm to 16.5 µm
Size50.0 +0.0/-0.2mm
Thickness1.0 +0.2/-0.2 mm
Scratch-Dig80/50
Clear Aperture45mm ¯ min
Flatness5 or better at of Interest
Parallelism< 10 arc minutes
SubstrateGe
GasCO2 Laser
CSV File (typical)10.60GA15.csv
Chart
Quantity DiscountsPrice
1 - 5 pcs.$2,099.00
6 - 10 pcs.$1,805.00
> 10 pcs.$1,595.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
8100NB500-25
Custom BP filter CWL 8100nm/HBW 500nm/25mm dia.
$624.00
$537.00
$474.00
In Stock
Qty To Buy:
Filter TypeN Band 8100 Filter
Bandwidth500nm +/-50nm
Minimum Transmission85%
Blocking1 x 10-3 avg. 7500nm to 13500nm 1 x 10-2 avg. 13500nm to 14500nm
Size25.0 ±0.2mm
Thickness1.0 +0.2/-0.2 mm
Flatness @ 633nm< 10 waves
SubstrateGermanium
Quantity DiscountsPrice
1 - 5 pcs.$624.00
6 - 10 pcs.$537.00
> 10 pcs.$474.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
8600NB500-25
Custom BP filter CWL 8600nm/HBW 500nm/25mm dia.
$624.00
$537.00
$474.00
In Stock
Qty To Buy:
Filter TypeN Band 8600 Filter
Bandwidth500nm +/-50nm
Minimum Transmission85%
Blocking1 x 10-3 avg. 7500nm to 13500nm 1 x 10-2 avg. 13500nm to 14500nm
Size25.0 ±0.2mm
Thickness1.0 +0.2/-0.2 mm
Flatness @ 633nm< 10 waves
SubstrateGermanium
Quantity DiscountsPrice
1 - 5 pcs.$624.00
6 - 10 pcs.$537.00
> 10 pcs.$474.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
9100NB500-25
Custom BP filter CWL 9100nm/HBW 500nm/25mm dia.
$624.00
$537.00
$474.00
In Stock
Qty To Buy:
Filter TypeN Band 9100 Filter
Bandwidth500nm +/-50nm
Minimum Transmission85%
Blocking1 x 10-3 avg. 7500nm to 13500nm 1 x 10-2 avg. 13500nm to 14500nm
Size25.0 ±0.2mm
Thickness1.0 +0.2/-0.2 mm
Flatness @ 633nm< 10 waves
SubstrateGermanium
Quantity DiscountsPrice
1 - 5 pcs.$624.00
6 - 10 pcs.$537.00
> 10 pcs.$474.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
9600NB500-25
Custom BP filter CWL 9600nm/HBW 500nm/25mm dia.
$624.00
$537.00
$474.00
In Stock
Qty To Buy:
Filter TypeN Band 9600 Filter
Bandwidth500nm +/-50nm
Minimum Transmission85%
Blocking1 x 10-3 avg. 7500nm to 13500nm 1 x 10-2 avg. 13500nm to 14500nm
Size25.0 ±0.2mm
Thickness1.0 +0.2/-0.2 mm
Flatness @ 633nm< 10 waves
SubstrateGermanium
Quantity DiscountsPrice
1 - 5 pcs.$624.00
6 - 10 pcs.$537.00
> 10 pcs.$474.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
10100NB500-25
Custom BP filter CWL 10100nm/HBW 500nm/25mm dia.
$624.00
$537.00
$474.00
In Stock
Qty To Buy:
Filter TypeN Band 10100 Filter
Bandwidth500nm +/-50nm
Minimum Transmission85%
Blocking1 x 10-3 avg. 7500nm to 13500nm 1 x 10-2 avg. 13500nm to 14500nm
Size25.0 ±0.2mm
Thickness1.0 +0.2/-0.2 mm
Flatness @ 633nm< 10 waves
SubstrateGermanium
Quantity DiscountsPrice
1 - 5 pcs.$624.00
6 - 10 pcs.$537.00
> 10 pcs.$474.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
10600NB500-25
Custom BP filter CWL 10600nm/HBW 500nm/25mm dia.
$624.00
$537.00
$474.00
In Stock
Qty To Buy:
Filter TypeN Band 10600 Filter
Bandwidth500nm +/-50nm
Minimum Transmission85%
Blocking1 x 10-3 avg. 7500nm to 13500nm 1 x 10-2 avg. 13500nm to 14500nm
Size25.0 ±0.2mm
Thickness1.0 +0.2/-0.2 mm
Flatness @ 633nm< 10 waves
SubstrateGermanium
Quantity DiscountsPrice
1 - 5 pcs.$624.00
6 - 10 pcs.$537.00
> 10 pcs.$474.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
11100NB500-25
Custom BP filter CWL 11100nm/HBW 500nm/25mm dia.
$624.00
$537.00
$474.00
In Stock
Qty To Buy:
Filter TypeN Band 11100 Filter
Bandwidth500nm +/-50nm
Minimum Transmission85%
Blocking1 x 10-3 avg. 7500nm to 13500nm 1 x 10-2 avg. 13500nm to 14500nm
Size25.0 ±0.2mm
Thickness1.0 +0.2/-0.2 mm
Flatness @ 633nm< 10 waves
SubstrateGermanium
Quantity DiscountsPrice
1 - 5 pcs.$624.00
6 - 10 pcs.$537.00
> 10 pcs.$474.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
11600NB500-25
Custom BP filter CWL 11600nm/HBW 500nm/25mm dia.
$624.00
$537.00
$474.00
In Stock
Qty To Buy:
Filter TypeN Band 11600 Filter
Bandwidth500nm +/-50nm
Minimum Transmission85%
Blocking1 x 10-3 avg. 7500nm to 13500nm 1 x 10-2 avg. 13500nm to 14500nm
Size25.0 ±0.2mm
Thickness1.0 +0.2/-0.2 mm
Flatness @ 633nm< 10 waves
SubstrateGermanium
Quantity DiscountsPrice
1 - 5 pcs.$624.00
6 - 10 pcs.$537.00
> 10 pcs.$474.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
12100NB500-25
Custom BP filter CWL 12100nm/HBW 500nm/25mm dia.
$624.00
$537.00
$474.00
In Stock
Qty To Buy:
Filter TypeN Band 12100 Filter
Bandwidth500nm +/-50nm
Minimum Transmission80%
Blocking1 x 10-3 avg. 7500nm to 13500nm 1 x 10-2 avg. 13500nm to 14500nm
Size25.0 ±0.2mm
Thickness1.0 +0.2/-0.2 mm
Flatness @ 633nm< 10 waves
SubstrateGermanium
Quantity DiscountsPrice
1 - 5 pcs.$624.00
6 - 10 pcs.$537.00
> 10 pcs.$474.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days