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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.
$57.00
$49.00
$43.00
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.$57.00
6 - 10 pcs.$49.00
> 10 pcs.$43.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
IRWS100-50
Silicon Substrate 50mm dia.
$183.00
$157.00
$139.00
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.$183.00
6 - 10 pcs.$157.00
> 10 pcs.$139.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
IRWS200-25
Germanium Substrate 25mm dia.
$68.00
$58.00
$52.00
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.$68.00
6 - 10 pcs.$58.00
> 10 pcs.$52.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
IRWS200-50
Germanium Substrate 50mm dia.
$205.00
$176.00
$156.00
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.$205.00
6 - 10 pcs.$176.00
> 10 pcs.$156.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
IRWS300-25
Sapphire Substrate 25mm dia.
$57.00
$49.00
$43.00
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.$57.00
6 - 10 pcs.$49.00
> 10 pcs.$43.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
IRWS300-50
Sapphire Substrate 50mm dia.
$183.00
$157.00
$139.00
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.$183.00
6 - 10 pcs.$157.00
> 10 pcs.$139.00
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.
$34.00
$29.00
$26.00
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.$34.00
6 - 10 pcs.$29.00
> 10 pcs.$26.00
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.
$141.00
$121.00
$107.00
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.$141.00
6 - 10 pcs.$121.00
> 10 pcs.$107.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
IRWS600-25
Zinc Selenide Substrate 25mm dia.
$298.00
$256.00
$226.00
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.$298.00
6 - 10 pcs.$256.00
> 10 pcs.$226.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days
IRWS500-25
Calcuim Fluoride Substrate 25mm dia.
$248.00
$213.00
$188.00
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.$248.00
6 - 10 pcs.$213.00
> 10 pcs.$188.00
Note: Contact us at sales@andovercorp.com for large quantity discounts.

Estimated Delivery: 2-3 Days