Bandpass Filters, 10 nm FWHM, 340-1550 nm
Bandpass filters feature a transmission band surrounded by two rejection bands. They only allow specific wavelengths to pass through, while blocking all other spectral components. Bandpass filters are widely applied in spectroscopy, clinical chemistry, imaging and other fields. The bandwidth defines the spectral range of light transmitted by an optical filter. Narrowband filters (< 20 nm) are commonly used for elemental and chemical analysis, analytical instruments and laser line cleaning. Broadband filters (> 20 nm) are ideal for imaging applications such as fluorescence microscopy, machine vision and factory automation.
We offer narrow bandpass filters in mounted sizes of Ø12.7 mm and Ø25.4 mm. Available specifications include 10 nm FWHM and central wavelengths covering 340 nm ~ 1550 nm for laser applications. Custom filters are also available according to your specific requirements. Please feel free to contact us for details.
Parameters
| Central Wavelength Tolerance | ± 2 nm |
| Full Width-Half Max(FWHM) | 10 nm |
| Full Width-Half Max Tolerance | ± 2 nm |
| Blocking | λc ≤ 1064 nm, better than OD4@200~1200 nm; λc > 1064 nm, better than OD4@200~2000 nm |
Model
| Dia. (mm) | CWL(nm) | FWHM (nm) | Transmission T (%) |
| Φ12.7/ Φ25.4 | 340 | 10 | >40% |
| 365/ 380 | >30% | ||
| 390/ 394 | >33% | ||
| 405 | >35% | ||
| 410/415 | >43% | ||
| 420/ 430/ 435/ 440/ 450/ 457/ 460/ 467/ 470/ 480 | >45% | ||
| 488/ 490/ 500/ 505/ 510/ 514.5 | >70% | ||
| 520/ 525/ 530/ 532/ 540/ 543/ 546/ 550/ 560/ 565/ 568.2/ 570/ 577.7/ 580/ 589.6/ 590/ 600/ 610/ 620/ 630/ 632.8/ 636/ 640/ 647/ 650/ 656.3/ 660/ 668/ 670/ 671/ 675/ 680/ 685/ 690/ 694.3/ 700/ 710/ 720/ 730/ 740/ 750/ 760/ 768/ 770/ 775/ 780/ 785/ 790/ 800/ 810/ 815/ 820/ 825/ 830/ 840/ 850/ 855/ 860/ 870/ 875/ 880/ 885/ 890/ 900/ 905/ 910/ 920/ 930/ 940/ 950/ 960/ 970/ 980/ 990/ 1064/ 1550 | >50% |