High Transmission UV-Bandpassfilter
Nearly 50 years of experience in coating processes and the new Magnetron Sputtering Technology combined with Japanese discipline, enables such outstanding specifications in all types of filters.
Product features:
The ASAHI Spectra High Transmission UV bandpass filters have significantly higher transmission and reflection values of the UV wavelengths and a narrow passband of 10nm.
These bandpass filters with their high transmission values set new standards in performance and reliability for UV bandpass filters.
The filters achieve transmission values of > 60% to 70% at UV wavelengths from 254nm to 390nm and offer simultaneous OD3.0 (0.1%) values in the blocking ranges. A unique feature is that unwanted wavelengths are reflected and not absorbed.
This significantly simplifies stray light management problems. The ASAHI Spectra High Transmission UV filters give you the opportunity to simplify your setup significantly. Each filter leads to maximum brightness and contrast in any UV application.
With their significantly higher transmission values in UV, they are also particularly suitable for use with the ASAHI Spectra MAX-350 illumination instrument.
Overview of the standard products of the bandpass filters
| Description | CWL (nm) | FWHM (nm) | Min. Transmittance (%) | Item# 25mm dia. | Item# 50mm dia. |
|---|---|---|---|---|---|
| High Transmission Bandpass Filter / 254nm | 254 | 10 | 60 | XHQA254 | |
| High Transmission Bandpass Filter / 260nm | 260 | 10 | 60 | XHQA260 | |
| High Transmission Bandpass Filter / 270nm | 270 | 10 | 60 | XHQA270 | |
| High Transmission Bandpass Filter / 280nm | 280 | 10 | 60 | XHQA280 | |
| High Transmission Bandpass Filter / 290nm | 290 | 10 | 60 | XHQA290 | |
| High Transmission Bandpass Filter / 300nm | 300 | 10 | 60 | XHQA300 | |
| High Transmission Bandpass Filter / 310nm | 310 | 10 | 60 | XHQA310 | |
| High Transmission Bandpass Filter / 313nm | 313 | 10 | 60 | XHQA313 | |
| High Transmission Bandpass Filter / 320nm | 320 | 10 | 65 | XHQA320 | |
| High Transmission Bandpass Filter / 330nm | 330 | 10 | 65 | XHQA330 | ZHQA330 |
| High Transmission Bandpass Filter / 334nm | 334 | 10 | 65 | XHQA334 | ZHQA334 |
| High Transmission Bandpass Filter / 340nm | 340 | 10 | 65 | XHQA340 | ZHQA340 |
| High Transmission Bandpass Filter / 350nm | 350 | 10 | 65 | XHQA350 | ZHQA350 |
| High Transmission Bandpass Filter / 360nm | 360 | 10 | 70 | XHQA360 | ZHQA360 |
| High Transmission Bandpass Filter / 365nm | 365 | 10 | 70 | XHQA365 | ZHQA365 |
| High Transmission Bandpass Filter / 370nm | 370 | 10 | 70 | XHQA370 | ZHQA370 |
| High Transmission Bandpass Filter / 380nm | 380 | 10 | 70 | XHQA380 | ZHQA380 |
| High Transmission Bandpass Filter / 390nm | 390 | 10 | 70 | XHQA390 | ZHQA390 |
These bandpass filters are available partially only in round 25mm diameter as standard products.
Special cuts or customized filters with other passband or blocking ranges can be made. Please contact your technical advisor for further information.