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.

BENEFITS 
  • Provide very steep (≤1%) cut-on slopes
  • Suitable for high-temperature applications
  • Can be cut or machined to smaller sizes
  • Useful for redirecting a particular band of light
COMMON APPLICATIONS
  • Fluorescence
  • Photometry
  • Color enhancement and combining laser studies
General Specifications
Thickness: 1.5 ± .25mm 
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 Index 1.76
Mechanical: Unmounted

 

Graph of Andover's Steep-Edge Long Pass Filters
Graph of Andover's Steep-Edge Long Pass Filters
DESCRIPTION
PART NO.
1 - 5 pcs.
> 5 pcs.
QTY In Stock
Buy
325nm Steep-Edge Long Pass Filter, 12.5mm dia.
325SC01-12.5
$74.00
$70.00
36
50% Wavelength325.0+3.5/-3.5
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$74.00
> 5 pcs.$70.00

Estimated Delivery: 2-3 Days
325nm Steep-Edge Long Pass Filter, 25mm dia.
325SC01-25
$124.00
$118.00
18
50% Wavelength325.0+3.5/-3.5
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$124.00
> 5 pcs.$118.00

Estimated Delivery: 2-3 Days
325nm Steep-Edge Long Pass Filter, 50mm dia.
325SC01-50
$235.00
$223.00
4
50% Wavelength325.0+3.5/-3.5
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$235.00
> 5 pcs.$223.00

Estimated Delivery: 2-3 Days
325nm Steep-Edge Long Pass Filter, 50.0 x 50.0mm sq.
325SC01-50S
$368.00
$350.00
2
50% Wavelength325.0+3.5/-3.5
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$368.00
> 5 pcs.$350.00

Estimated Delivery: 2-3 Days
350nm Steep-Edge Long Pass Filter, 12.5mm dia.
350SC01-12.5
$74.00
$70.00
24
50% Wavelength350.0+3.5/-3.5
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$74.00
> 5 pcs.$70.00

Estimated Delivery: 2-3 Days
350nm Steep-Edge Long Pass Filter, 25mm dia.
350SC01-25
$124.00
$118.00
38
50% Wavelength350.0+3.5/-3.5
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$124.00
> 5 pcs.$118.00

Estimated Delivery: 2-3 Days
350nm Steep-Edge Long Pass Filter, 50mm dia.
350SC01-50
$235.00
$223.00
3
50% Wavelength350.0+3.5/-3.5
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$235.00
> 5 pcs.$223.00

Estimated Delivery: 2-3 Days
350nm Steep-Edge Long Pass Filter, 50.0 x 50.0mm sq.
350SC01-50S
$368.00
$350.00
5
50% Wavelength350.0+3.5/-3.5
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$368.00
> 5 pcs.$350.00

Estimated Delivery: 2-3 Days
375nm Steep-Edge Long Pass Filter, 12.5mm dia.
375SC01-12.5
$74.00
$70.00
38
50% Wavelength375.0+3.75/-3.75
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$74.00
> 5 pcs.$70.00

Estimated Delivery: 2-3 Days
375nm Steep-Edge Long Pass Filter, 25mm dia.
375SC01-25
$124.00
$118.00
14
50% Wavelength375.0+3.75/-3.75
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$124.00
> 5 pcs.$118.00

Estimated Delivery: 2-3 Days
375nm Steep-Edge Long Pass Filter, 50mm dia.
375SC01-50
$235.00
$223.00
2
50% Wavelength375.0+3.75/-3.75
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$235.00
> 5 pcs.$223.00

Estimated Delivery: 2-3 Days
375nm Steep-Edge Long Pass Filter, 50.0 x 50.0mm sq.
375SC01-50S
$368.00
$350.00
1
50% Wavelength375.0+3.75/-3.75
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$368.00
> 5 pcs.$350.00

Estimated Delivery: 2-3 Days
400nm Steep-Edge Long Pass Filter, 12.5mm dia.
400SC01-12.5
$74.00
$70.00
9
50% Wavelength400.0+4.0/-4.0
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$74.00
> 5 pcs.$70.00

Estimated Delivery: 2-3 Days
400nm Steep-Edge Long Pass Filter, 25mm dia.
400SC01-25
$124.00
$118.00
2
50% Wavelength400.0+4.0/-4.0
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$124.00
> 5 pcs.$118.00

Estimated Delivery: 2-3 Days
400nm Steep-Edge Long Pass Filter, 50mm dia.
400SC01-50
$235.00
$223.00
2
50% Wavelength400.0+4.0/-4.0
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$235.00
> 5 pcs.$223.00

Estimated Delivery: 2-3 Days
400nm Steep-Edge Long Pass Filter, 50.0 x 50.0mm sq.
400SC01-50S
$368.00
$350.00
8
50% Wavelength400.0+4.0/-4.0
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$368.00
> 5 pcs.$350.00

Estimated Delivery: 2-3 Days
450nm Steep-Edge Long Pass Filter, 12.5mm dia.
450SC01-12.5
$74.00
$70.00
15
50% Wavelength450.0+4.5/-4.5
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$74.00
> 5 pcs.$70.00

Estimated Delivery: 2-3 Days
450nm Steep-Edge Long Pass Filter, 25mm dia.
450SC01-25
$124.00
$118.00
9
50% Wavelength450.0+4.5/-4.5
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$124.00
> 5 pcs.$118.00

Estimated Delivery: 2-3 Days
450nm Steep-Edge Long Pass Filter, 50mm dia.
450SC01-50
$235.00
$223.00
1
50% Wavelength450.0+4.5/-4.5
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$235.00
> 5 pcs.$223.00

Estimated Delivery: 2-3 Days
450nm Steep-Edge Long Pass Filter, 50.0 x 50.0mm sq.
450SC01-50S
$368.00
$350.00
2
50% Wavelength450.0+4.5/-4.5
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$368.00
> 5 pcs.$350.00

Estimated Delivery: 2-3 Days
500nm Steep-Edge Long Pass Filter, 12.5mm dia.
500SC01-12.5
$74.00
$70.00
14
50% Wavelength500.0+5.0/-5.0
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$74.00
> 5 pcs.$70.00

Estimated Delivery: 2-3 Days
500nm Steep-Edge Long Pass Filter, 25mm dia.
500SC01-25
$124.00
$118.00
19
50% Wavelength500.0+5.0/-5.0
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$124.00
> 5 pcs.$118.00

Estimated Delivery: 2-3 Days
500nm Steep-Edge Long Pass Filter, 50mm dia.
500SC01-50
$235.00
$223.00
0
50% Wavelength500.0+5.0/-5.0
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$235.00
> 5 pcs.$223.00

Estimated Delivery: 2-3 Days
500nm Steep-Edge Long Pass Filter, 50.0 x 50.0mm sq.
500SC01-50S
$368.00
$350.00
1
50% Wavelength500.0+5.0/-5.0
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$368.00
> 5 pcs.$350.00

Estimated Delivery: 2-3 Days
550nm Steep-Edge Long Pass Filter, 12.5mm dia.
550SC01-12.5
$74.00
$70.00
88
50% Wavelength550.0+5.5/-5.5
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$74.00
> 5 pcs.$70.00

Estimated Delivery: 2-3 Days
550nm Steep-Edge Long Pass Filter, 25mm dia.
550SC01-25
$124.00
$118.00
8
50% Wavelength550.0+5.5/-5.5
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$124.00
> 5 pcs.$118.00

Estimated Delivery: 2-3 Days
550nm Steep-Edge Long Pass Filter, 50mm dia.
550SC01-50
$235.00
$223.00
5
50% Wavelength550.0+5.5/-5.5
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$235.00
> 5 pcs.$223.00

Estimated Delivery: 2-3 Days
550nm Steep-Edge Long Pass Filter, 50.0 x 50.0mm sq.
550SC01-50S
$368.00
$350.00
4
50% Wavelength550.0+5.5/-5.5
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$368.00
> 5 pcs.$350.00

Estimated Delivery: 2-3 Days
600nm Steep-Edge Long Pass Filter, 12.5mm dia.
600SC01-12.5
$74.00
$70.00
14
50% Wavelength600.0+6.0/-6.0
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$74.00
> 5 pcs.$70.00

Estimated Delivery: 2-3 Days
600nm Steep-Edge Long Pass Filter, 25mm dia.
600SC01-25
$124.00
$118.00
21
50% Wavelength600.0+6.0/-6.0
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$124.00
> 5 pcs.$118.00

Estimated Delivery: 2-3 Days
600nm Steep-Edge Long Pass Filter, 50mm dia.
600SC01-50
$235.00
$223.00
3
50% Wavelength600.0+6.0/-6.0
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$235.00
> 5 pcs.$223.00

Estimated Delivery: 2-3 Days
600nm Steep-Edge Long Pass Filter, 50.0 x 50.0mm sq.
600SC01-50S
$368.00
$350.00
4
50% Wavelength600.0+6.0/-6.0
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$368.00
> 5 pcs.$350.00

Estimated Delivery: 2-3 Days
650nm Steep-Edge Long Pass Filter, 12.5mm dia.
650SC01-12.5
$74.00
$70.00
63
50% Wavelength650.0+6.5/-6.5
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$74.00
> 5 pcs.$70.00

Estimated Delivery: 2-3 Days
650nm Steep-Edge Long Pass Filter, 25mm dia.
650SC01-25
$124.00
$118.00
11
50% Wavelength650.0+6.5/-6.5
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$124.00
> 5 pcs.$118.00

Estimated Delivery: 2-3 Days
650nm Steep-Edge Long Pass Filter, 50mm dia.
650SC01-50
$235.00
$223.00
1
50% Wavelength650.0+6.5/-6.5
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$235.00
> 5 pcs.$223.00

Estimated Delivery: 2-3 Days
650nm Steep-Edge Long Pass Filter, 50.0 x 50.0mm sq.
650SC01-50S
$368.00
$350.00
0
50% Wavelength650.0+6.5/-6.5
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$368.00
> 5 pcs.$350.00

Estimated Delivery: 2-3 Days
700nm Steep-Edge Long Pass Filter, 12.5mm dia.
700SC01-12.5
$74.00
$70.00
14
50% Wavelength700.0+7.0/-7.0
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$74.00
> 5 pcs.$70.00

Estimated Delivery: 2-3 Days
700nm Steep-Edge Long Pass Filter, 25mm dia.
700SC01-25
$124.00
$118.00
12
50% Wavelength700.0+7.0/-7.0
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$124.00
> 5 pcs.$118.00

Estimated Delivery: 2-3 Days
700nm Steep-Edge Long Pass Filter, 50mm dia.
700SC01-50
$235.00
$223.00
0
50% Wavelength700.0+7.0/-7.0
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$235.00
> 5 pcs.$223.00

Estimated Delivery: 2-3 Days
700nm Steep-Edge Long Pass Filter, 50.0 x 50.0mm sq.
700SC01-50S
$368.00
$350.00
0
50% Wavelength700.0+7.0/-7.0
TypeLWP
Size+0.0/-0.2mm
Thickness1.5 +0.25/-0.25 mm
QuantityPrice
1 - 5 pcs.$368.00
> 5 pcs.$350.00

Estimated Delivery: 2-3 Days