MidOpt - BN940 Narrow Near-Infrared (IR) Bandpass Filter

The MidOpt BN940 Narrow Near-Infrared (IR) Bandpass Filter is commonly used in remote control devices and in security / surveillance lighting. 940nm illumination is often considered “covert,” as little, if any, faint red glow is produced from these LEDs, even in complete darkness. CCD and CMOS cameras have greatly reduced sensitivity at these wavelengths, and strong ambient light can often make imaging in this range very difficult. MidOpt Bandpass Filters have a broad, Gaussian passband to mimic and accommodate the entire output of the most common LED wavelengths, are double-side polished for exceptional parallelism and optical flatness and are anti-reflection (AR) coated to limit glare.