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ISO 9001 - AS 9100 - ITAR Standard & Custom Optical Filters and Coatings
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Andover IR filters

INFRARED WINDOWS AND SUBSTRATES

Andover stocks a variety of optical-quality infrared-transmitting substrates. All substrates are optically polished. A/R coatings are also available.

For your convenience and economy, we offer the windows in two standard sizes: 25 mm and 50 mm dia. However, we can produce custom sizes and shapes. Contact our technical sales department for a quotation.

Thickness: 1.0 ±.2mm 
Diameter tolerance: +0/-.1mm
Surface Quality: 60/40 per MIL-C-48497A

Click 'Show More Information' for spectral transmission data
BENEFITS 
  • High optical quality
  • Available from stock
  • Custom sizes available
COMMON APPLICATIONS
  • Thermal imaging
  • Weapon systems
  • Detector windows
  • IR Photography

Graph of transmission of optical-grade Silicon substrateGraph of transmission of optical-grade Germanium substrateGraph of transmission of optical-grade Sapphire substrateGraph of transmission of optical-grade water-free Fused Silica IR substrateGraph of transmission of optical-grade Calcium Fluoride IR substrateGraph of transmission of optical-grade Zinc Selenide IR substrate

PART NO.
DESCRIPTION
1 - 5 pcs.
6 - 10 pcs.
> 10 pcs.
Stock Status
Buy
Available Items
IRWS100-25
Silicon Substrate 25mm dia.
$55.00
$47.00
$42.00
In Stock
Qty To Buy:
Size25.0 ¯mm diameter
Thickness1.0 +0.2/-0.2 mm
Scratch-Dig60/40
Clear Aperture90% of OD
Flatness2 per inch @633nm
Parallelism<3 arc minutes
Quantity DiscountsPrice
1 - 5 pcs.$55.00
6 - 10 pcs.$47.00
> 10 pcs.$42.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
IRWS100-50
Silicon Substrate 50mm dia.
$177.00
$152.00
$135.00
In Stock
Qty To Buy:
Size50.0 ¯mm diameter
Thickness1.0 +0.2/-0.2 mm
Scratch-Dig60/40
Clear Aperture90% of OD
Flatness2 per inch @633nm
Parallelism<3 arc minutes
Quantity DiscountsPrice
1 - 5 pcs.$177.00
6 - 10 pcs.$152.00
> 10 pcs.$135.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
IRWS200-25
Germanium Substrate 25mm dia.
$66.00
$57.00
$50.00
In Stock
Qty To Buy:
Size25.0 ¯mm diameter
Thickness1.0 +0.2/-0.2 mm
Scratch-Dig60/40
Clear Aperture90% of OD
Flatness<10 per inch @633nm
Parallelism<3 arc minutes
Quantity DiscountsPrice
1 - 5 pcs.$66.00
6 - 10 pcs.$57.00
> 10 pcs.$50.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
IRWS200-50
Germanium Substrate 50mm dia.
$198.00
$170.00
$150.00
In Stock
Qty To Buy:
Size50.0 ¯mm diameter
Thickness1.0 +0.2/-0.2 mm
Scratch-Dig60/40
Clear Aperture90% of OD
Flatness<10 per inch @633nm
Parallelism<3 arc minutes
Quantity DiscountsPrice
1 - 5 pcs.$198.00
6 - 10 pcs.$170.00
> 10 pcs.$150.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
IRWS300-25
Sapphire Substrate 25mm dia.
$55.00
$47.00
$42.00
In Stock
Qty To Buy:
Size25.0 ¯mm diameter
Thickness1.0 +0.2/-0.2 mm
Scratch-Dig60/40
Clear Aperture90% of OD
Flatness2 per inch @633nm
Parallelism<3 arc minutes
Quantity DiscountsPrice
1 - 5 pcs.$55.00
6 - 10 pcs.$47.00
> 10 pcs.$42.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
IRWS300-50
Sapphire Substrate 50mm dia.
$177.00
$152.00
$135.00
In Stock
Qty To Buy:
Size50.0 ¯mm diameter
Thickness1.0 +0.2/-0.2 mm
Scratch-Dig60/40
Clear Aperture90% of OD
Flatness2 per inch @633nm
Parallelism<3 arc minutes
Quantity DiscountsPrice
1 - 5 pcs.$177.00
6 - 10 pcs.$152.00
> 10 pcs.$135.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
IRWS400-25
IR (Water Free) Fused Silica Substrate 25mm dia.
$33.00
$28.00
$25.00
In Stock
Qty To Buy:
Size25.0 ¯mm diameter
Thickness1.0 +0.2/-0.2 mm
Scratch-Dig60/40
Clear Aperture90% of OD
Flatness2 per inch @633nm
Parallelism<3 arc minutes
Quantity DiscountsPrice
1 - 5 pcs.$33.00
6 - 10 pcs.$28.00
> 10 pcs.$25.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
IRWS400-50
IR (Water Free) Fused Silica Substrate 50mm dia.
$136.00
$117.00
$103.00
In Stock
Qty To Buy:
Size50.0 ¯mm diameter
Thickness1.0 +0.2/-0.2 mm
Scratch-Dig60/40
Clear Aperture90% of OD
Flatness2 per inch @633nm
Parallelism<3 arc minutes
Quantity DiscountsPrice
1 - 5 pcs.$136.00
6 - 10 pcs.$117.00
> 10 pcs.$103.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
IRWS600-25
Zinc Selenide Substrate 25mm dia.
$288.00
$248.00
$219.00
In Stock
Qty To Buy:
Size25.0 ¯mm diameter
Thickness1.0 +0.2/-0.2 mm
Scratch-Dig60/40
Clear Aperture90% of OD
Flatness2 per inch @633nm
Parallelism<6 arc minutes
Quantity DiscountsPrice
1 - 5 pcs.$288.00
6 - 10 pcs.$248.00
> 10 pcs.$219.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
IRWS500-25
Calcuim Fluoride Substrate 25mm dia.
$240.00
$206.00
$182.00
In Stock
Qty To Buy:
Size25.0 ¯mm diameter
Thickness1.0 +0.2/-0.2 mm
Scratch-Dig60/40
Clear Aperture90% of OD
Flatness2 per inch @633nm
Parallelism<10 arc minutes
Quantity DiscountsPrice
1 - 5 pcs.$240.00
6 - 10 pcs.$206.00
> 10 pcs.$182.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days