UV bandpass filters
The nearly 50-year experience in coating processes and the new Magnetron Sputtering Technology combined with Japanese discipline, enables such outstanding specifications for all types of filters.
Product features:
The ASAHI Spectra bandpass filters are designed with a narrow 10 nm transmission band in the UV range and reject unwanted wavelengths from 200 to 1200 nm. These bandpass filters set the standard for performance and reliability in UV bandpass filters.
Applications:
Spectroradiometry, medical diagnostics, chemical analysis, astronomy and wherever spectral isolation is required.
Overview of the standard products of the bandpass filters
| Description | CWL (nm) | FWHM (nm) | Min. Transmittance (%) | Item# 25mm dia. | Item# 50 x 50mm |
|---|---|---|---|---|---|
| Bandpass Filter / 254nm | 254 | 10 | 20 | XBPA254 | ZBPA254 |
| Bandpass Filter / 260nm | 260 | 10 | 20 | XBPA260 | ZBPA260 |
| Bandpass Filter / 270nm | 270 | 10 | 20 | XBPA270 | ZBPA270 |
| Bandpass Filter / 280nm | 280 | 10 | 20 | XBPA280 | ZBPA280 |
| Bandpass Filter / 290nm | 290 | 10 | 20 | XBPA290 | ZBPA290 |
| Bandpass Filter / 300nm | 300 | 10 | 30 | XBPA300 | ZBPA300 |
| Bandpass Filter / 310nm | 310 | 10 | 35 | XBPA310 | ZBPA310 |
| Bandpass Filter / 320nm | 320 | 10 | 45 | XBPA320 | ZBPA320 |
| Bandpass Filter / 330nm | 330 | 10 | 45 | XBPA330 | ZBPA330 |
| Bandpass Filter / 340nm | 340 | 10 | 45 | XBPA340 | ZBPA340 |
| Bandpass Filter / 350nm | 350 | 10 | 45 | XBPA350 | ZBPA350 |
| Bandpass Filter / 360nm | 360 | 10 | 40 | XBPA360 | ZBPA360 |
| Bandpass Filter / 365nm | 365 | 10 | 40 | XBPA365 | ZBPA365 |
| Bandpass Filter / 370nm | 370 | 10 | 40 | XBPA370 | ZBPA370 |
| Bandpass Filter / 380nm | 380 | 10 | 45 | XBPA380 | ZBPA380 |
| Bandpass Filter / 390nm | 390 | 10 | 45 | XBPA390 | ZBPA390 |
The bandpass filters are available as standard only in round 25mm diameter.
Special cuts or customized filters with other passband or blocking ranges can be made. Please contact your technical advisor for further information.