Antireflective Coatings

Andover produces a non-radioactive dielectric multilayer coating designed to reduce the reflection of Germanium substrates in the infrared. Reflection is reduced from 36% per surface to less than 1% per surface. Constructed of hard, durable first-surface dielectric coatings on optical-quality germanium substrates, these filters will withstand cleaning and handling associated with any high-quality optical component. For your convenience and economy, we offer the filters in two standard sizes: 25 mm and 50 mm dia. However, we can produce custom sizes and shapes, as well as custom optical characteristics. Contact our technical sales department for a quotation.

General Specifications
Thickness: 1.0 ±.2mm
Diameter Tolerance:+0/-.1mm
Min. Clear Aperture:90% of outside dimension
Substrate Material: Germanium (other substrates available)
Flatness:2 waves at 632.8nm
Parallelism: <10 arc minutes
Surface Quality: 80/50 per MIL-C-48497A
Coating Quality:80/50 per MIL-C-48497A
24-hour humidity:per MIL-C-48497A
Moderate Abrasion:per MIL-C-48497A
Adhesion:per MIL-C-48497A
Operating Temperature:-62°C to +71°C
Mechanical: Unmounted
DESCRIPTION PART NO. 1-5 pcs. >5 pcs. QTY IN STOCK QTY
+ BBARnm CWL, 2000 -> 14000nm Bandwidth, 25.0 Diameter GEBBAR-2-14-25 $111 $105 17
Description GE BroadBand A/R
Size 25.0 +0.0/-0.1mm
Thickness 1.0 +0.2/-0.2 mm
Transmission 86%
CSV File (typical) GEBBAR-2-14.csv
Graph Test
QtyPrice
1-5 $111
6+ $105
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph .
+ BBARnm CWL, 2000 ->14000nm Bandwidth, 50.0 Diameter GEBBAR-2-14-50 $217 $206 6
Description GE BroadBand A/R
Size 50.0 +0.0/-0.1mm
Thickness 1.0 +0.2/-0.2 mm
Transmission 86%
CSV File (typical) GEBBAR-2-14.csv
Graph Test
QtyPrice
1-5 $217
6+ $206
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph .
+ BBARnm CWL, 3000->5000nm Bandwidth, 25.0 Diameter GEBBAR-3-5-25 $111 $105 12
Description GE BroadBand A/R
Size 25.0 +0.0/-0.1mm
Thickness 1.0 +0.2/-0.2 mm
Transmission 98%
CSV File (typical) GEBBAR-3-5.csv
Graph Test
QtyPrice
1-5 $111
6+ $105
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph .
+ BBARnm CWL, 3000->5000nm Bandwidth, 50.0 Diameter GEBBAR-3-5-50 $217 $206 5
Description GE BroadBand A/R
Size 50.0 +0.0/-0.1mm
Thickness 1.0 +0.2/-0.2 mm
Transmission 98%
CSV File (typical) GEBBAR-3-5.csv
Graph Test
QtyPrice
1-5 $217
6+ $206
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph .
+ BBARnm CWL, 8000-12000nm Bandwidth, 25.0 Diameter GEBBAR-8-12-25 $111 $105 14
Description GE BroadBand A/R
Size 25.0 +0.0/-0.1mm
Thickness 1.0 +0.2/-0.2 mm
Transmission 97%
CSV File (typical) GEBBAR-8-12.csv
Graph Test
QtyPrice
1-5 $111
6+ $105
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph .
+ BBARnm CWL, 8000-12000nm Bandwidth, 50.0 Diameter GEBBAR-8-12-50 $217 $206 5
Description GE BroadBand A/R
Size 50.0 +0.0/-0.1mm
Thickness 1.0 +0.2/-0.2 mm
Transmission 97%
CSV File (typical) GEBBAR-8-12.csv
Graph Test
QtyPrice
1-5 $217
6+ $206
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph .
+ BBARnm CWL, 8000->14000nm Bandwidth, 25.0 Diameter GEBBAR-8-14-25 $111 $105 6
Description GE BroadBand A/R
Size 25.0 +0.0/-0.1mm
Thickness 1.0 +0.2/-0.2 mm
Transmission 97%
CSV File (typical) GEBBAR-8-14.csv
Graph Test
QtyPrice
1-5 $111
6+ $105
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph .
+ BBARnm CWL, 8000->14000nm Bandwidth, 50.0 Diameter GEBBAR-8-14-50 $217 $206 4
Description GE BroadBand A/R
Size 50.0 +0.0/-0.1mm
Thickness 1.0 +0.2/-0.2 mm
Transmission 97%
CSV File (typical) GEBBAR-8-14.csv
Graph Test
QtyPrice
1-5 $217
6+ $206
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph .