Standard bandpass filters and sets
from AndoverAndover offers one of the most extensive selections of bandpass filters in the industry, including many of the primary laser, mercury, biomedical, and analytical spectral lines. We use a proprietary method to stabilize our products to prevent drift of peak wavelength with age and hermetically seal each filter for maximum protection against humidity. Each filter is mounted in a black anodized aluminum ring, adding further protection against chipping, scratching, and moisture penetration.
Easy product selection for quick inquiries
Takes you to our "Andover Inquiry System" where you can select the Filters you need and get an immediate response.
- Wavelengths from the ultraviolet through the infrared
- Stabilized to prevent drift of peak wavelength over time
- Hermetically sealed and protected by an anodized aluminum ring
Specifications
| Diameter Tolerance | +0/-0.25 mm | |
| Filter Size (O.D./C.A.) | 12.5 mm Ø 25.0 mm Ø 50.0 mm Ø | 9.0 mm Ø 21.0 mm Ø 45.0 mm Ø |
| Surface Quality | 80-50 (Per MIL-PRF-13830B) | |
| Optical Quality | Commercial instrumentation grade | |
| Out-of-Band Blocking | 1 x 10-4 avg. from X-ray to FIR | |
| Specification Temperature | +23 ºC | |
| Max. Survival Temp Range | CW/L 214-380 nm -50 ºC to +50 ºC | CW/L 380.1-2400 nm -50 ºC to +70 ºC |
| Humidity Resistance | Per MIL-C-48497A | |
| Mechanical | Mounted in an anodized aluminum ring | |
Standard Bandpass Filter:
Line | CWL (nm) | FWHM (nm) | Cavities/ Filter Type | Min. T (%) | n* | Nominal Thickness (mm) | Part Number ⋅1 |
|---|---|---|---|---|---|---|---|
| - | 193.0±2.5 | 15±3 | MDM/7 | 12 | - | 4.0 | 193FS15 |
| - | 200.0+3/-0 | 10±2 | MDM/7 | 12 | - | 4.0 | 200FS10 |
| Zn | 214.0+3/-0 | 10±2 | MDM/7 | 12 | - | 4.0 | 214FS10 |
| Zn | 214.0±3 | 22±4 | MDM/8 | 20 | - | 4.0 | 214FS22 |
| - | 220.0+3/-0 | 10±2 | MDM/7 | 12 | - | 4.0 | 220FS10 |
| Cd | 228.0+3/-0 | 10±2 | MDM/7 | 15 | - | 4.0 | 228FS10 |
| Cd | 228.0±3 | 25±5 | MDM/8 | 20 | - | 4.0 | 228FS25 |
| Ni | 232.0+3/-0 | 10±2 | MDM/7 | 15 | - | 4.0 | 232FS10 |
| Co | 239.0+3/-0 | 10±2 | MDM/7 | 15 | - | 4.0 | 239FS10 |
| Co | 239.0±3 | 25±5 | MDM/8 | 20 | - | 4.0 | 239FS25 |
MDM=Metal-Dieelectric-Metal
⋅1 standard diameters: 12.5, 25.0, 50.0 mm;example part number: 488FS02-12.5 or -25 or -50
Applications
Contact
