Industrial Optical FiltersFilters

Narrow Bandpass Filters

Schneider-Kreuznach robust narrow bandpass filters are designed to pass only a very narrow range of wavelengths of incident light, blocking the rest of the optical spectrum.

Overview

Transmit a small defined wavelength range

Narrow Bandpass filters for the industry

Schneider-Kreuznach magnetron sputtered industrial narrow bandpass filters feature steep slopes for sophisticated applications that require a sharp transition between high transmission and deep blocking at stable cut-on and cut-off wavelengths. The layers are applied by means of magnetron sputtering, a special coating process. Schneider-Kreuznach narrow bandpass filters are RoHS conform. Custom sizes are available on request.

What is the function of a narrow bandpass filter?
A narrow bandpass filter selectively transmits light within a narrow range of wavelengths while blocking light outside this range. The filter is designed to have a high degree of wavelength selectivity, which allows it to transmit only a specific narrow spectral band of light.

Where is a narrow bandpass filter used?
In industrial applications, narrow bandpass filters are used in a wide range of applications, including spectroscopy, imaging, and 3D measurement. They are used to isolate specific spectral lines or bands in a complex light source, enabling precise measurements and imaging.

 

KEY FEATURES OF OUR Narrow BANDPASS FILTERS
  • Average Transmission 90 %: Achieve an impressive average transmission rate of 90 % for optimal light throughput.
  • Steep slopes: Take advantage of steep slopes that allow efficient isolation of specific wavelengths.
  • Wavelength Tolerance +/- 3 %: Experience exceptional accuracy with a wavelength tolerance of +/- 3 %, ensuring precise results.
  • Deep Blocking / High Optical Density: Our bandpass filters offer deep blocking and high optical density, effectively minimizing unwanted light leakage.

ModelStatusWavelength range center Wavelength Bandwidth
NBP 405-15 HT
on request398-412nm405nm15nm
NBP 450-40 HT
standard433-466nm450nm40nm
NBP 457-20 HT
on request447-467nm457nm20nm
NBP 488-20 HT
on request478-498nm488nm20nm
NBP 532-20 HT
on request522-542nm532nm20nm
NBP 635-20 HT
standard625-645nm635nm20nm
NBP 660-10 HT
standard655-665nm660nm10nm
NBP 810-45 HT
on request788-832nm810nm45nm
NBP 830-20 HT
on request820-840nm830nm20nm

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