SHORT WAVE PASS EDGE FILTERS

Often referred to as long wave pass (LWP) and short wave pass (SWP) filters, these sharp-cut edge filters are distinguished by their high rate of transition between their region of reflection and transmission. This high rate of transition makes them an excellent choice as emission filters in fluorescence applications, and as order sorting filters in photometry. They are also very useful as stray light or trim filters, to eliminate any unwanted near band radiation. All Andover LWP/SWP filters are constructed of hard, durable first-surface dielectric coatings, and will withstand the normal cleaning and handling associated with any high-quality optical component. Their film construction is essentially a modified quarter-wave stack, using interference effects rather than absorption to isolate their spectral bands. Unlike filter glass, which is not sensitive to wavelength shift with angle, these filters will shift shorter in wavelength with an increase in their angle of incidence. This feature can be useful in applications where it may be desirable to fine tune the 50% cut-on, or cut-off wavelength. All standard edge filters are available in 50nm increments from 400nm to 1000nm. Custom edge filters are available and will be quoted upon request. Please contact one of our technical sales representatives for more specific information.

BENEFITS
  • Useful for redirecting a particular band of light
  • Offers coverage over the 300 - 1000nm range
  • Provide steeper transistion than color glass filters
COMMON APPLICATIONS
  • Fluorescence
  • Photometry
  • Color enhancement and combining
For more demanding requirements, please see our steep-edge long pass filters.
General Specifications  
   
Thickness: 4.0mm maximum 
Size Tolerance: +0.0mm/-0.5mm
Min. Clear Aperture: 95% of outside dimension
Substrate Material: Soda Lime Glass, Fused Silica (Note: BK-7,  Borofloat available option for higher Tx.)
Flatness: 3-5 waves per 25 TWF
Surface Quality: 80-50 per MIL-C-48497A
Humidity and Abrasion: Per MIL-C-675A
Operating Temperature: -50°C to +100°C
Cut-on Slope: 6% maximum (11% for 300nm filter)
Cut-on Tolerance: ±10nm from 400nm-1100nm
±5nm from 300nm - 375nm
Mechanical: Unmounted

 

Transmission  
Long Wave Pass: 85% average from the 50% cut-on point to 2000nm
Short Wave Pass:

400-450nm: 85% avererage from the 50% cut-on point to 0.75 x the 50% cut-off point

500-1000nm: 85% avererage from the 50% cut-on point to 0.75 x the 50% cut-off point

Note: with the exception of the 400nm filter, all SWP filters will drop off in transmission at wavelengths under 400nm.)

Rejection  
Long Wave Pass: 99% or greater from 0.9 x the 50% point to the UV
Short Wave Pass: 99% or greater from 1.07 x the 50% point to 1.25 x the 50% point
Effective index of refraction (n*) 1.7 (approximately)
DESCRIPTION
PART NO.
1 - 5 pcs.
> 5 pcs.
QTY In Stock
Buy
Std. SWP Filter Cut-off WL 1000nm, 12.5mm dia.
100FL07-12.5
$60.00
$57.00
0
50% Wavelength100.0+10/-10
TypeSWP
Size+0/-0.2mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$60.00
> 5 pcs.$57.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 1000nm, 25mm dia.
100FL07-25
$95.00
$90.00
1
50% Wavelength1000.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$95.00
> 5 pcs.$90.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 1000nm, 50mm dia.
100FL07-50
$128.00
$122.00
5
50% Wavelength1000.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$128.00
> 5 pcs.$122.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 1000nm, 50mm x 50mm
100FL07-50S
$153.00
$145.00
1
50% Wavelength1000.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$153.00
> 5 pcs.$145.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 400nm, 12.5mm dia.
400FL07-12.5
$60.00
$57.00
0
50% Wavelength400.0+10/-10
TypeSWP
Size+0/-0.2mm
Thickness1.5 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$60.00
> 5 pcs.$57.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 400nm, 25mm dia.
400FL07-25
$106.00
$101.00
22
50% Wavelength400.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.5 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$106.00
> 5 pcs.$101.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 400nm, 50mm dia.
400FL07-50
$141.00
$134.00
5
50% Wavelength400.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.5 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$141.00
> 5 pcs.$134.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 400nm, 50mm x 50mm
400FL07-50S
$166.00
$158.00
14
50% Wavelength400.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.5 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$166.00
> 5 pcs.$158.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 450nm, 12.5mm dia.
450FL07-12.5
$60.00
$57.00
7
50% Wavelength450.0+10/-10
TypeSWP
Size+0/-0.2mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$60.00
> 5 pcs.$57.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 450nm, 25mm dia.
450FL07-25
$95.00
$90.00
19
50% Wavelength450.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$95.00
> 5 pcs.$90.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 450nm, 50mm dia.
450FL07-50
$128.00
$122.00
3
50% Wavelength450.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$128.00
> 5 pcs.$122.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 450nm, 50mm x 50mm
450FL07-50S
$153.00
$145.00
0
50% Wavelength450.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$153.00
> 5 pcs.$145.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 500nm, 12.5mm dia.
500FL07-12.5
$60.00
$57.00
2
50% Wavelength500.0+10/-10
TypeSWP
Size+0/-0.2mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$60.00
> 5 pcs.$57.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 500nm, 25mm dia.
500FL07-25
$95.00
$90.00
0
50% Wavelength500.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$95.00
> 5 pcs.$90.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 500nm, 50mm dia.
500FL07-50
$128.00
$122.00
0
50% Wavelength500.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$128.00
> 5 pcs.$122.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 500nm, 50mm x 50mm
500FL07-50S
$153.00
$145.00
0
50% Wavelength500.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$153.00
> 5 pcs.$145.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 550nm, 12.5mm dia.
550FL07-12.5
$60.00
$57.00
54
50% Wavelength550.0+10/-10
TypeSWP
Size+0/-0.2mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$60.00
> 5 pcs.$57.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 550nm, 25mm dia.
550FL07-25
$95.00
$90.00
26
50% Wavelength550+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$95.00
> 5 pcs.$90.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 550nm, 50mm dia.
550FL07-50
$128.00
$122.00
2
50% Wavelength550.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$128.00
> 5 pcs.$122.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 550nm, 50mm x 50mm
550FL07-50S
$153.00
$145.00
2
50% Wavelength550.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$153.00
> 5 pcs.$145.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 600nm, 12.5mm dia.
600FL07-12.5
$60.00
$57.00
0
50% Wavelength600.0+10/-10
TypeSWP
Size+0/-0.2mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$60.00
> 5 pcs.$57.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 600nm, 25mm dia.
600FL07-25
$95.00
$90.00
21
50% Wavelength600.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$95.00
> 5 pcs.$90.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 600nm, 50mm dia.
600FL07-50
$128.00
$122.00
4
50% Wavelength600.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$128.00
> 5 pcs.$122.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 600nm, 50mm x 50mm
600FL07-50S
$153.00
$145.00
2
50% Wavelength600.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$153.00
> 5 pcs.$145.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 650nm, 12.5mm dia.
650FL07-12.5
$60.00
$57.00
9
50% Wavelength650.0+10/-10
TypeSWP
Size+0/-0.2mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$60.00
> 5 pcs.$57.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 650nm, 25mm dia.
650FL07-25
$95.00
$90.00
13
50% Wavelength650.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$95.00
> 5 pcs.$90.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 650nm, 50mm dia.
650FL07-50
$128.00
$122.00
5
50% Wavelength650.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$128.00
> 5 pcs.$122.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 650nm, 50mm x 50mm
650FL07-50S
$153.00
$145.00
2
50% Wavelength650.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$153.00
> 5 pcs.$145.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 700nm, 12.5mm dia.
700FL07-12.5
$60.00
$57.00
7
50% Wavelength700.0+10/-10
TypeSWP
Size+0/-0.2mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$60.00
> 5 pcs.$57.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 700nm, 25mm dia.
700FL07-25
$95.00
$90.00
21
50% Wavelength700.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$95.00
> 5 pcs.$90.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 700nm, 50mm dia.
700FL07-50
$128.00
$122.00
8
50% Wavelength700.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$128.00
> 5 pcs.$122.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 700nm, 50mm sq.
700FL07-50S
$153.00
$145.00
6
50% Wavelength700.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$153.00
> 5 pcs.$145.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 750nm, 12.5mm dia.
750FL07-12.5
$60.00
$57.00
0
50% Wavelength750.0+10/-10
TypeSWP
Size+0/-0.2mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$60.00
> 5 pcs.$57.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 750nm, 25mm dia.
750FL07-25
$95.00
$90.00
5
50% Wavelength750.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$95.00
> 5 pcs.$90.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 750nm, 50mm dia.
750FL07-50
$128.00
$122.00
1
50% Wavelength750.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$128.00
> 5 pcs.$122.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 750nm, 50mm x 50mm
750FL07-50S
$153.00
$145.00
12
50% Wavelength750.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$153.00
> 5 pcs.$145.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 800nm, 12.5mm dia.
800FL07-12.5
$60.00
$57.00
21
50% Wavelength800.0+10/-10
TypeSWP
Size+0/-0.2mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$60.00
> 5 pcs.$57.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 800nm, 25mm dia.
800FL07-25
$95.00
$90.00
40
50% Wavelength800.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$95.00
> 5 pcs.$90.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 800nm, 50mm dia.
800FL07-50
$128.00
$122.00
2
50% Wavelength800.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$128.00
> 5 pcs.$122.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 800nm, 50mm x 50mm
800FL07-50S
$153.00
$145.00
0
50% Wavelength800.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$153.00
> 5 pcs.$145.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 850nm, 12.5mm dia.
850FL07-12.5
$60.00
$57.00
14
50% Wavelength850.0+10/-10
TypeSWP
Size+0/-0.2mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$60.00
> 5 pcs.$57.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 850nm, 25mm dia.
850FL07-25
$95.00
$90.00
9
50% Wavelength850.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$95.00
> 5 pcs.$90.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 850nm, 50mm dia.
850FL07-50
$128.00
$122.00
19
50% Wavelength850.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$128.00
> 5 pcs.$122.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 850nm, 50mm x 50mm
850FL07-50S
$153.00
$145.00
3
50% Wavelength850.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$153.00
> 5 pcs.$145.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 900nm, 12.5mm dia.
900FL07-12.5
$60.00
$57.00
3
50% Wavelength900.0+10/-10
TypeSWP
Size+0/-0.2mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$60.00
> 5 pcs.$57.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 900nm, 25mm dia.
900FL07-25
$95.00
$90.00
60
50% Wavelength900.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$95.00
> 5 pcs.$90.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 900nm, 50mm dia.
900FL07-50
$128.00
$122.00
1
50% Wavelength900.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$128.00
> 5 pcs.$122.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 900nm, 50mm x 50mm
900FL07-50S
$153.00
$145.00
14
50% Wavelength900.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$153.00
> 5 pcs.$145.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 950nm, 12.5mm dia.
950FL07-12.5
$60.00
$57.00
0
50% Wavelength950.0+10/-10
TypeSWP
Size+0/-0.2mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$60.00
> 5 pcs.$57.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 950nm, 25mm dia.
950FL07-25
$95.00
$90.00
21
50% Wavelength950.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$95.00
> 5 pcs.$90.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 950nm, 50mm dia.
950FL07-50
$128.00
$122.00
5
50% Wavelength950.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$128.00
> 5 pcs.$122.00

Estimated Delivery: 2-3 Days
Std. SWP Filter Cut-off WL 950nm, 50mm x 50mm
950FL07-50S
$153.00
$145.00
7
50% Wavelength950.0+10/-10
TypeSWP
Size+0/-0.5mm
Thickness1.0 +.25/-.25 mm
QuantityPrice
1 - 5 pcs.$153.00
> 5 pcs.$145.00

Estimated Delivery: 2-3 Days