Steep-Edge Longpass Filters

Our steep-edge long pass filters employ magnetron sputtered hard oxide coatings to yield deep rejection and a sharp transition to very high transmission. The coatings are deposited on precision polished Fused Silica substrates, and do not employ any absorbing filter glasses, making them suitable for high-temperature applications. They are offered in three standard sizes, with custom sizes available on request. For less-demanding applications, please see our standard edge filters.

General Specifications 
  
Thickness:1.5 ± .025mm 
Size Tolerance:+0.0mm/-0.2mm
Min. Clear Aperture:95% of outside dimension
Substrate Material:UV Grade Fused Silica
Flatness:≤ 1/4 wave/inch TWF
Surface Quality:60-40 per MIL-C-48497A
Humidity and Abrasion:Per MIL-C-675A
Durability:Per MIL-C-48497A
Operating Temperature:-50°C to +200°C
Transmission:≥ 91% average
Rejection:≥ OD 4.0
Cut-on Slope:1% (2% for 325nm filter)
Cut-on Tolerance:± 1%
Effective Refractive Index1.76
Mechanical:Unmounted
Graph of Andover's Steep-Edge Long Pass FiltersGraph of Andover's Steep-Edge Long Pass Filters
DESCRIPTION PART NO. 1-5 pcs. >5 pcs. QTY IN STOCK QTY
+ 325nm Steep-Edge Long Pass Filter, 12.5mm dia. 325SC01-12.5 $67 $64 88
50% Wavelength 325.0+3.5/-3.5 nm
Type LWP
Size 12.5 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 325SC01.csv
Graph Test
QtyPrice
1-5 $67
6+ $64
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 325nm Steep-Edge Long Pass Filter, 25mm dia. 325SC01-25 $112 $106 26
50% Wavelength 325.0+3.5/-3.5 nm
Type LWP
Size 25.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 325SC01.csv
Graph Test
QtyPrice
1-5 $112
6+ $106
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 325nm Steep-Edge Long Pass Filter, 50mm dia. 325SC01-50 $213 $202 0
50% Wavelength 325.0+3.5/-3.5 nm
Type LWP
Size 50.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 325SC01.csv
Graph Test
QtyPrice
1-5 $213
6+ $202
Estimated delivery: approximately 1 week.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 325nm Steep-Edge Long Pass Filter, 50.0 x 50.0mm sq. 325SC01-50S $333 $316 0
50% Wavelength 325.0+3.5/-3.5 nm
Type LWP
Size 50.0 x 50.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 325SC01.csv
Graph Test
QtyPrice
1-5 $333
6+ $316
Estimated delivery: approximately 1 week.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 350nm Steep-Edge Long Pass Filter, 12.5mm dia. 350SC01-12.5 $67 $64 121
50% Wavelength 350.0+3.5/-3.5 nm
Type LWP
Size 12.5 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 350SC01.csv
Graph Test
QtyPrice
1-5 $67
6+ $64
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 350nm Steep-Edge Long Pass Filter, 25mm dia. 350SC01-25 $112 $106 2
50% Wavelength 350.0+3.5/-3.5 nm
Type LWP
Size 25.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 350SC01.csv
Graph Test
QtyPrice
1-5 $112
6+ $106
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 350nm Steep-Edge Long Pass Filter, 50mm dia. 350SC01-50 $213 $202 2
50% Wavelength 350.0+3.5/-3.5 nm
Type LWP
Size 50.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 350SC01.csv
Graph Test
QtyPrice
1-5 $213
6+ $202
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 350nm Steep-Edge Long Pass Filter, 50.0 x 50.0mm sq. 350SC01-50S $333 $316 5
50% Wavelength 350.0+3.5/-3.5 nm
Type LWP
Size 50.0 x 50.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 350SC01.csv
Graph Test
QtyPrice
1-5 $333
6+ $316
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 375nm Steep-Edge Long Pass Filter, 12.5mm dia. 375SC01-12.5 $67 $64 114
50% Wavelength 375.0+3.75/-3.75 nm
Type LWP
Size 12.5 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 375SC01.csv
Graph Test
QtyPrice
1-5 $67
6+ $64
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 375nm Steep-Edge Long Pass Filter, 25mm dia. 375SC01-25 $112 $106 4
50% Wavelength 375.0+3.75/-3.75 nm
Type LWP
Size 25.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 375SC01.csv
Graph Test
QtyPrice
1-5 $112
6+ $106
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 375nm Steep-Edge Long Pass Filter, 50mm dia. 375SC01-50 $213 $202 5
50% Wavelength 375.0+3.75/-3.75 nm
Type LWP
Size 50.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 375SC01.csv
Graph Test
QtyPrice
1-5 $213
6+ $202
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 375nm Steep-Edge Long Pass Filter, 50.0 x 50.0mm sq. 375SC01-50S $333 $316 2
50% Wavelength 375.0+3.75/-3.75 nm
Type LWP
Size 50.0 x 50.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 375SC01.csv
Graph Test
QtyPrice
1-5 $333
6+ $316
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 400nm Steep-Edge Long Pass Filter, 12.5mm dia. 400SC01-12.5 $67 $64 11
50% Wavelength 400.0+4.0/-4.0 nm
Type LWP
Size 12.5 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 400SC01.csv
Graph Test
QtyPrice
1-5 $67
6+ $64
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 400nm Steep-Edge Long Pass Filter, 25mm dia. 400SC01-25 $112 $106 4
50% Wavelength 400.0+4.0/-4.0 nm
Type LWP
Size 25.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 400SC01.csv
Graph Test
QtyPrice
1-5 $112
6+ $106
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 400nm Steep-Edge Long Pass Filter, 50mm dia. 400SC01-50 $213 $202 6
50% Wavelength 400.0+4.0/-4.0 nm
Type LWP
Size 50.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 400SC01.csv
Graph Test
QtyPrice
1-5 $213
6+ $202
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 400nm Steep-Edge Long Pass Filter, 50.0 x 50.0mm sq. 400SC01-50S $333 $316 0
50% Wavelength 400.0+4.0/-4.0 nm
Type LWP
Size 50.0 x 50.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 400SC01.csv
Graph Test
QtyPrice
1-5 $333
6+ $316
Estimated delivery: approximately 1 week.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 450nm Steep-Edge Long Pass Filter, 12.5mm dia. 450SC01-12.5 $67 $64 10
50% Wavelength 450.0+4.5/-4.5 nm
Type LWP
Size 12.5 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 450SC01.csv
Graph Test
QtyPrice
1-5 $67
6+ $64
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 450nm Steep-Edge Long Pass Filter, 25mm dia. 450SC01-25 $112 $106 14
50% Wavelength 450.0+4.5/-4.5 nm
Type LWP
Size 25.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 450SC01.csv
Graph Test
QtyPrice
1-5 $112
6+ $106
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 450nm Steep-Edge Long Pass Filter, 50mm dia. 450SC01-50 $213 $202 6
50% Wavelength 450.0+4.5/-4.5 nm
Type LWP
Size 50.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 450SC01.csv
Graph Test
QtyPrice
1-5 $213
6+ $202
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 450nm Steep-Edge Long Pass Filter, 50.0 x 50.0mm sq. 450SC01-50S $333 $316 3
50% Wavelength 450.0+4.5/-4.5 nm
Type LWP
Size 50.0 x 50.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 450SC01.csv
Graph Test
QtyPrice
1-5 $333
6+ $316
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 500nm Steep-Edge Long Pass Filter, 12.5mm dia. 500SC01-12.5 $67 $64 24
50% Wavelength 500.0+5.0/-5.0 nm
Type LWP
Size 12.5 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 500SC01.csv
Graph Test
QtyPrice
1-5 $67
6+ $64
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 500nm Steep-Edge Long Pass Filter, 25mm dia. 500SC01-25 $112 $106 2
50% Wavelength 500.0+5.0/-5.0 nm
Type LWP
Size 25.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 500SC01.csv
Graph Test
QtyPrice
1-5 $112
6+ $106
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 500nm Steep-Edge Long Pass Filter, 50mm dia. 500SC01-50 $213 $202 8
50% Wavelength 500.0+5.0/-5.0 nm
Type LWP
Size 50.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 500SC01.csv
Graph Test
QtyPrice
1-5 $213
6+ $202
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 500nm Steep-Edge Long Pass Filter, 50.0 x 50.0mm sq. 500SC01-50S $333 $316 0
50% Wavelength 500.0+5.0/-5.0 nm
Type LWP
Size 50.0 x 50.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 500SC01.csv
Graph Test
QtyPrice
1-5 $333
6+ $316
Estimated delivery: approximately 1 week.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 550nm Steep-Edge Long Pass Filter, 12.5mm dia. 550SC01-12.5 $67 $64 77
50% Wavelength 550.0+5.5/-5.5 nm
Type LWP
Size 12.5 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 550SC01.csv
Graph Test
QtyPrice
1-5 $67
6+ $64
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 550nm Steep-Edge Long Pass Filter, 25mm dia. 550SC01-25 $112 $106 3
50% Wavelength 550.0+5.5/-5.5 nm
Type LWP
Size 25.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 550SC01.csv
Graph Test
QtyPrice
1-5 $112
6+ $106
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 550nm Steep-Edge Long Pass Filter, 50mm dia. 550SC01-50 $213 $202 1
50% Wavelength 550.0+5.5/-5.5 nm
Type LWP
Size 50.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 550SC01.csv
Graph Test
QtyPrice
1-5 $213
6+ $202
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 550nm Steep-Edge Long Pass Filter, 50.0 x 50.0mm sq. 550SC01-50S $333 $316 0
50% Wavelength 550.0+5.5/-5.5 nm
Type LWP
Size 50.0 x 50.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 550SC01.csv
Graph Test
QtyPrice
1-5 $333
6+ $316
Estimated delivery: approximately 1 week.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 600nm Steep-Edge Long Pass Filter, 12.5mm dia. 600SC01-12.5 $67 $64 8
50% Wavelength 600.0+6.0/-6.0 nm
Type LWP
Size 12.5 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 600SC01.csv
Graph Test
QtyPrice
1-5 $67
6+ $64
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 600nm Steep-Edge Long Pass Filter, 25mm dia. 600SC01-25 $112 $106 17
50% Wavelength 600.0+6.0/-6.0 nm
Type LWP
Size 25.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 600SC01.csv
Graph Test
QtyPrice
1-5 $112
6+ $106
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 600nm Steep-Edge Long Pass Filter, 50mm dia. 600SC01-50 $213 $202 0
50% Wavelength 600.0+6.0/-6.0 nm
Type LWP
Size 50.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 600SC01.csv
Graph Test
QtyPrice
1-5 $213
6+ $202
Estimated delivery: approximately 1 week.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 600nm Steep-Edge Long Pass Filter, 50.0 x 50.0mm sq. 600SC01-50S $333 $316 4
50% Wavelength 600.0+6.0/-6.0 nm
Type LWP
Size 50.0 x 50.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 600SC01.csv
Graph Test
QtyPrice
1-5 $333
6+ $316
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 650nm Steep-Edge Long Pass Filter, 12.5mm dia. 650SC01-12.5 $67 $64 22
50% Wavelength 650.0+6.5/-6.5 nm
Type LWP
Size 12.5 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 650SC01.csv
Graph Test
QtyPrice
1-5 $67
6+ $64
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 650nm Steep-Edge Long Pass Filter, 25mm dia. 650SC01-25 $112 $106 1
50% Wavelength 650.0+6.5/-6.5 nm
Type LWP
Size 25.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 650SC01.csv
Graph Test
QtyPrice
1-5 $112
6+ $106
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 650nm Steep-Edge Long Pass Filter, 50mm dia. 650SC01-50 $213 $202 0
50% Wavelength 650.0+6.5/-6.5 nm
Type LWP
Size 50.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 650SC01.csv
Graph Test
QtyPrice
1-5 $213
6+ $202
Estimated delivery: approximately 1 week.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 650nm Steep-Edge Long Pass Filter, 50.0 x 50.0mm sq. 650SC01-50S $333 $316 0
50% Wavelength 650.0+6.5/-6.5 nm
Type LWP
Size 50.0 x 50.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 650SC01.csv
Graph Test
QtyPrice
1-5 $333
6+ $316
Estimated delivery: approximately 1 week.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 700nm Steep-Edge Long Pass Filter, 12.5mm dia. 700SC01-12.5 $67 $64 14
50% Wavelength 700.0+7.0/-7.0 nm
Type LWP
Size 12.5 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 700SC01.csv
Graph Test
QtyPrice
1-5 $67
6+ $64
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 700nm Steep-Edge Long Pass Filter, 25mm dia. 700SC01-25 $112 $106 22
50% Wavelength 700.0+7.0/-7.0 nm
Type LWP
Size 25.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 700SC01.csv
Graph Test
QtyPrice
1-5 $112
6+ $106
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 700nm Steep-Edge Long Pass Filter, 50mm dia. 700SC01-50 $213 $202 4
50% Wavelength 700.0+7.0/-7.0 nm
Type LWP
Size 50.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 700SC01.csv
Graph Test
QtyPrice
1-5 $213
6+ $202
Estimated delivery: 1-2 days.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.
+ 700nm Steep-Edge Long Pass Filter, 50.0 x 50.0mm sq. 700SC01-50S $333 $316 0
50% Wavelength 700.0+7.0/-7.0 nm
Type LWP
Size 50.0 x 50.0 +0.0/-0.2mm
Thickness 1.5 +0.25/-0.25 mm
CSV File (typical) 700SC01.csv
Graph Test
QtyPrice
1-5 $333
6+ $316
Estimated delivery: approximately 1 week.
Note: Always free ground shipping on all domestic orders.
Click icon to display graph.