Taking Tri-Camera True-Color Infrared Videos
The system uses three USB webcams, each with its IR cut filter removed and replaced with a different dichroic IR band-pass filter. One filter is centered at 750 nm, one at 850 nm, and one at 940 nm. There is no band overlap; in testing, each camera only detected an infrared flashlight tuned to its own filter wavelength.
- ▪The system uses three USB webcams, each with its IR cut filter removed and replaced with a different dichroic IR band-pass filter.
- ▪One filter is centered at 750 nm, one at 850 nm, and one at 940 nm.
- ▪There is no band overlap; in testing, each camera only detected an infrared flashlight tuned to its own filter wavelength.
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Taking Tri-Camera True-Color Infrared Videos No comments by: Aaron Beckendorf July 25, 2026 Title: Copy Short Link: Copy Silicon-based CMOS camera sensors are cheap and plentiful, but they’re rarely used to their full potential: they can detect a greater range of wavelengths in the infrared spectrum than they can in the visible spectrum, but in most cameras this is blocked by an IR-cut filter. [Project 326]’s infrared camera system reverses this: it records infrared images in color while blocking out visible light. The system uses three USB webcams, each with its IR cut filter removed and replaced with a different dichroic IR band-pass filter. One filter is centered at 750 nm, one at 850 nm, and one at 940 nm.
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