Description
MidOpt DB940 Dual Bandpass Filter Visible + 940nm NIR
A DB940 filter passes visible and 940nm LED light. 940nm LEDs do not emit the faint red glow associated with 850nm and other lower near-IR LED wavelengths. Using a DB940 filter over or behind the lens allows full color imaging during the day and covert surveillance at night. However any camera’s spectral response at 940nm will be lower than at other, shorter near-IR wavelengths, so relative sensitivity of each camera’s imaging sensor at 940nm must also be considered.
MidOpt DB940 Dual Bandpass Filter Visible + 940nm NIR Technical Characteristics
Useful Range: | 405-650nm, 925-965nm |
FWHM: | 250nm, 50nm |
Tolerance: | +/- 20nm VIS, +/- 10nm NIR |
Peak Transmission | ?90% |
Surface Quality | 40/20 |
Mount | (Mount Varies) |
Clear Aperture | (Aperture Varies) |
Overall Thickness | (Overall Thickness Varies) |
Exposed Thickness | (Exposed Thickness Varies) |
No | No |
*Filters 62mm and greater have a surface quality tolerance of 60/40.
MidOpt DB940 Dual Bandpass Filter Visible + 940nm NIR Transmission Chart
MidOpt DB940 Dual Bandpass Filter Visible + 940nm NIR Transmission Data
MidOpt DB940 Part Numbers:
MidOpt DB940-25.4MidOpt DB940-13.25
MidOpt DB940-22.5
MidOpt DB940-27
MidOpt DB940-30.5
MidOpt DB940-34
MidOpt DB940-35.5
MidOpt DB940-37
MidOpt DB940-37.5
MidOpt DB940-39
MidOpt DB940-40.5
MidOpt DB940-43
MidOpt DB940-46
MidOpt DB940-48
MidOpt DB940-49
MidOpt DB940-52
MidOpt DB940-55
MidOpt DB940-58
MidOpt DB940-62
MidOpt DB940-67
MidOpt DB940-72
MidOpt DB940-77
MidOpt DB940-82
MidOpt DB940-86
MidOpt DB940-95
MidOpt DB940-105
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