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.

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Applications
  • Chemistry
  • Biotechnology
  • Medical technology
  • Semiconductor industry
  • Photovoltaics and more

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
DescriptionCWL
(nm)
FWHM
(nm)
Min. Transmittance
(%)
Item#
25mm dia.
Item#
50mm dia.
High Transmission Bandpass Filter / 254nm2541060XHQA254
High Transmission Bandpass Filter / 260nm2601060XHQA260
High Transmission Bandpass Filter / 270nm2701060XHQA270
High Transmission Bandpass Filter / 280nm2801060XHQA280
High Transmission Bandpass Filter / 290nm2901060XHQA290
High Transmission Bandpass Filter / 300nm3001060XHQA300
High Transmission Bandpass Filter / 310nm3101060XHQA310
High Transmission Bandpass Filter / 313nm3131060XHQA313
High Transmission Bandpass Filter / 320nm3201065XHQA320
High Transmission Bandpass Filter / 330nm3301065XHQA330ZHQA330
High Transmission Bandpass Filter / 334nm3341065XHQA334ZHQA334
High Transmission Bandpass Filter / 340nm3401065XHQA340ZHQA340
High Transmission Bandpass Filter / 350nm3501065XHQA350ZHQA350
High Transmission Bandpass Filter / 360nm3601070XHQA360ZHQA360
High Transmission Bandpass Filter / 365nm3651070XHQA365ZHQA365
High Transmission Bandpass Filter / 370nm3701070XHQA370ZHQA370
High Transmission Bandpass Filter / 380nm3801070XHQA380ZHQA380
High Transmission Bandpass Filter / 390nm3901070XHQA390ZHQA390

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.