MidOpt BN940 Narrow Near-IR Bandpass Filter

Midwest Optical SystemsSKU: BN940-13.25

Filter Mounting Thread: 13.25mm


MidOpt BN940 Narrow Near-IR Bandpass Filter

BN940 Narrow Near-IR Bandpass filters feature a narrow band design with improved blocking of unwanted light and greater insensitivity to short shifting, making them particularly essential when 940nm lighting is used together with a short focal length camera lens.
940nm LEDs are 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. Unfortunately CMOS and CCD cameras have greatly reduced sensitivity at these wavelengths, and strong ambient light can often make imaging in this range very difficult.

MidOpt BN940 Narrow Near-IR Bandpass Filter Technical Characteristics

Useful Range: 928-955nm
FWHM: 55nm
Tolerance: +/- 7nm
Peak Transmission ?90%
Surface Quality 40/20

*Filters 62mm and greater have a surface quality tolerance of 60/40.

MidOpt BN940 Narrow Near-IR Bandpass Filter Transmission Chart

MidOpt BN940 Narrow Bandpass Filter Transmission

MidOpt BN940 Narrow Near-IR Bandpass Filter Transmission Data 

MidOpt BN940 Narrow Bandpass Filter Datasheet

MidOpt BN940 Part Numbers:

MidOpt BN940-25.4
MidOpt BN940-13.25
MidOpt BN940-22.5
MidOpt BN940-27
MidOpt BN940-30.5
MidOpt BN940-34
MidOpt BN940-35.5
MidOpt BN940-37
MidOpt BN940-37.5
MidOpt BN940-39
MidOpt BN940-40.5
MidOpt BN940-43
MidOpt BN940-46
MidOpt BN940-48
MidOpt BN940-49
MidOpt BN940-52
MidOpt BN940-55
MidOpt BN940-58
MidOpt BN940-62
MidOpt BN940-67
MidOpt BN940-72
MidOpt BN940-77
MidOpt BN940-82
MidOpt BN940-86
MidOpt BN940-95
MidOpt BN940-105 

MidOpt Filter Mounting Options

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