Dual Bandpass Filters

Dual Bandpass Filters are designed for day/night imaging applications where visible light and a specific infrared wavelength band must both be transmitted.

These filters block interfering IR wavelength ranges to achieve accurate colour rendition while also enabling scenes to be viewed with dedicated IR illumination at night.

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Dual Bandpass Filters

Key Features

Accurate colour rendition

Blocks interfering infrared wavelengths to improve daytime colour imaging performance.

Day/night imaging

Enables colour cameras to operate effectively with dedicated IR illumination at night.

Applications

Day/night surveillance

Ideal for colour camera systems operating in changing lighting conditions.

Filter Models

DB850 DB940 Mounting Solutions

DB850 Dual Bandpass Filter

Visible + 850nm dual bandpass filtering

DB850 dual bandpass filters are designed for applications requiring transmission of visible wavelengths together with 850nm infrared illumination.

These filters are commonly used in colour camera day/night imaging systems where accurate daytime colour rendition and infrared night illumination are both required.

DB850 Dual Bandpass Filter
Specification Details
Visible Range 385-650nm
Infrared Range 820-880nm
Primary IR Band 850nm
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DB940 Dual Bandpass Filter

Visible + 940nm dual bandpass filtering

DB940 dual bandpass filters are designed for applications requiring transmission of visible wavelengths together with 940nm infrared illumination.

These filters help maintain accurate daytime colour rendition while supporting dedicated 940nm infrared imaging at night.

DB940 Dual Bandpass Filter
Specification Details
Visible Range 385-650nm
Infrared Range 910-970nm
Primary IR Band 940nm
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Need help selecting dual bandpass filters?

Talk to our machine vision engineers about day/night imaging, infrared illumination and wavelength filtering solutions.

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