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Model No. : | RQ-NBP |
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Brand Name : | CCRQ |
Transmission: Customized : | Customized |
Changchun, Jilin, China
Product description
940nm IR Narrow 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 Narrow Bandpass Filter 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.
Specification
Product name
940nm Optical Ir bandpass filter
Center wavelength
940nm + 3
Half bandwidth
940nm + 3
Blocking
>OD4@200-1200nm
Average transmission rate
90%
Surface Quality
60/40
size
can be customized according to customer needs various square circular
More Infoormation as choice
Focus Lens
Reflection Mirror
Beam Expander
Laser Protective Window
Color Filter
Optical Interfence filter
Video
Changchun, Jilin, China
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